C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 311932
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
232 PM CDT Sat Aug 31 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
232 PM CDT Sat Aug 31 2024 /332 PM EDT Sat Aug 31 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/e42vh
Saturday, August 31, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 310848
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
348 AM CDT Sat Aug 31 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
348 AM CDT Sat Aug 31 2024 /448 AM EDT Sat Aug 31 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/gz5t7
FLUS43 KLOT 310848
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
348 AM CDT Sat Aug 31 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
348 AM CDT Sat Aug 31 2024 /448 AM EDT Sat Aug 31 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/gz5t7
Friday, August 30, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 310154 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
854 PM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
854 PM CDT Fri Aug 30 2024 /954 PM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Thunderstorm chances will continue east of I-57 through this
evening.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 20 mph.
https://wxn.io/84h0w
FLUS43 KLOT 310154 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
854 PM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
854 PM CDT Fri Aug 30 2024 /954 PM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Thunderstorm chances will continue east of I-57 through this
evening.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 20 mph.
https://wxn.io/84h0w
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 301927
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
227 PM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
227 PM CDT Fri Aug 30 2024 /327 PM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph|.
Level 1 of 5 Large Hail Risk...up to 1 inch in diameter.
DISCUSSION...
Scattered thunderstorms will develop east of I-55 this afternoon.
A few may be strong to severe with locally damaging winds as the
main threat.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated, but reports of severe weather
are always appreciated.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/vqhzl
FLUS43 KLOT 301927
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
227 PM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
227 PM CDT Fri Aug 30 2024 /327 PM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph|.
Level 1 of 5 Large Hail Risk...up to 1 inch in diameter.
DISCUSSION...
Scattered thunderstorms will develop east of I-55 this afternoon.
A few may be strong to severe with locally damaging winds as the
main threat.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated, but reports of severe weather
are always appreciated.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/vqhzl
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 300912
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
412 AM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
412 AM CDT Fri Aug 30 2024 /512 AM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to one inch in diameter.
DISCUSSION...
Isolated non-severe thunderstorms may continue through daybreak
this morning northwest of I-55.
Scattered thunderstorms may then redevelop east of I-55 this
afternoon, some of which could be strong to locally severe.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk at southern Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed east of I-55 this afternoon and evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/ao5oh
FLUS43 KLOT 300912
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
412 AM CDT Fri Aug 30 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
412 AM CDT Fri Aug 30 2024 /512 AM EDT Fri Aug 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to one inch in diameter.
DISCUSSION...
Isolated non-severe thunderstorms may continue through daybreak
this morning northwest of I-55.
Scattered thunderstorms may then redevelop east of I-55 this
afternoon, some of which could be strong to locally severe.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Sunday and Monday...
High Swim Risk at southern Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed east of I-55 this afternoon and evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/ao5oh
Thursday, August 29, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 291929
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
229 PM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
229 PM CDT Thu Aug 29 2024 /329 PM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk northwest of I-55 after midnight.
DISCUSSION...
A thunderstorm or two may occur northwest of Interstate 55 after
midnight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 35 mph.
https://wxn.io/rwrr5
FLUS43 KLOT 291929
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
229 PM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
229 PM CDT Thu Aug 29 2024 /329 PM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk northwest of I-55 after midnight.
DISCUSSION...
A thunderstorm or two may occur northwest of Interstate 55 after
midnight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 35 mph.
https://wxn.io/rwrr5
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 291650
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1150 AM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1150 AM CDT Thu Aug 29 2024 /1250 PM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
A thunderstorm or two may occur west of Interstate 39 after
midnight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/sl2wq
FLUS43 KLOT 291650
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1150 AM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1150 AM CDT Thu Aug 29 2024 /1250 PM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
A thunderstorm or two may occur west of Interstate 39 after
midnight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.
Sunday and Monday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/sl2wq
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 290953
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
453 AM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
453 AM CDT Thu Aug 29 2024 /553 AM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
DISCUSSION...
Scattered thunderstorms will likely move into northern Illinois
after midnight tonight. A few of these storms may be strong to
severe, with damaging winds the primary severe threat. Storms
should weaken with eastward extent, with the greatest potential of
isolated severe weather along and west of the I-39 corridor.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible Friday
afternoon, mainly southeast of a Peru Illinois to Chicago line.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-northeast at 30 mph.
https://wxn.io/c9cz7
FLUS43 KLOT 290953
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
453 AM CDT Thu Aug 29 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
453 AM CDT Thu Aug 29 2024 /553 AM EDT Thu Aug 29 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
DISCUSSION...
Scattered thunderstorms will likely move into northern Illinois
after midnight tonight. A few of these storms may be strong to
severe, with damaging winds the primary severe threat. Storms
should weaken with eastward extent, with the greatest potential of
isolated severe weather along and west of the I-39 corridor.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible Friday
afternoon, mainly southeast of a Peru Illinois to Chicago line.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-northeast at 30 mph.
https://wxn.io/c9cz7
Wednesday, August 28, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 290255
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
955 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
955 PM CDT Wed Aug 28 2024 /1055 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday night and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible, primarily
on Friday.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/x98ur
FLUS43 KLOT 290255
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
955 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
955 PM CDT Wed Aug 28 2024 /1055 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday night and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible, primarily
on Friday.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/x98ur
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 282024
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
324 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
324 PM CDT Wed Aug 28 2024 /424 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms are possible well south of I-80 through
early evening. If any thunderstorms develop, a few strong storms
with gusty winds may occur near and south of Highway 24.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday Night and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible, primarily
on Friday.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is unnecessary tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the the east at 25 to 30 mph.
https://wxn.io/jrvey
FLUS43 KLOT 282024
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
324 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
324 PM CDT Wed Aug 28 2024 /424 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms are possible well south of I-80 through
early evening. If any thunderstorms develop, a few strong storms
with gusty winds may occur near and south of Highway 24.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday Night and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday into Monday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Isolated strong to severe thunderstorms are possible, primarily
on Friday.
Dangerous swimming conditions are expected Sunday into Labor Day
at Lake Michigan beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is unnecessary tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the the east at 25 to 30 mph.
https://wxn.io/jrvey
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 281710
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1210 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1210 PM CDT Wed Aug 28 2024 /110 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms are possible this afternoon south of I-80.
If thunderstorms develop, a few strong storms with gusty winds may
occur near and south of Highway 24.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is unlikely this afternoon.
GENERAL STORM MOTION OF THE DAY:
Moving toward the the east at 25 to 30 mph.
https://wxn.io/p2uml
FLUS43 KLOT 281710
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1210 PM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1210 PM CDT Wed Aug 28 2024 /110 PM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
Isolated thunderstorms are possible this afternoon south of I-80.
If thunderstorms develop, a few strong storms with gusty winds may
occur near and south of Highway 24.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is unlikely this afternoon.
GENERAL STORM MOTION OF THE DAY:
Moving toward the the east at 25 to 30 mph.
https://wxn.io/p2uml
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 281002
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
502 AM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
502 AM CDT Wed Aug 28 2024 /602 AM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Isolated thunderstorms are possible this morning mainly south of
I-80. Scattered thunderstorms (30 to 40 percent coverage) are
also possible mainly south of I-80 this afternoon. A few strong to
severe storms are possible, mainly southeast of about a Pontiac
to Valparaiso line. Isolated damaging winds and large hail are the
main threats. Locally heavy rainfall is also possible this
afternoon across the same area.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 25 to 30 mph.
https://wxn.io/x9my2
FLUS43 KLOT 281002
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
502 AM CDT Wed Aug 28 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
502 AM CDT Wed Aug 28 2024 /602 AM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Isolated thunderstorms are possible this morning mainly south of
I-80. Scattered thunderstorms (30 to 40 percent coverage) are
also possible mainly south of I-80 this afternoon. A few strong to
severe storms are possible, mainly southeast of about a Pontiac
to Valparaiso line. Isolated damaging winds and large hail are the
main threats. Locally heavy rainfall is also possible this
afternoon across the same area.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday and Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Sunday...
High Swim Risk Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 25 to 30 mph.
https://wxn.io/x9my2
Tuesday, August 27, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 280419
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1119 PM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1119 PM CDT Tue Aug 27 2024 /1219 AM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 4 Flooding Risk.
Moderate Swim Risk for Lake Michigan beaches.
Minor Lakeshore Flooding Risk.
DISCUSSION...
Periods of showers and thunderstorms are expected to continue
overnight. The remaining severe weather threat overnight is low
though a localized gust to 50 to 60 mph can't be ruled out.
Rapid water level fluctuations will remain possible overnight
along the southern Lake Michigan shoreline.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 20 to 30 mph.
https://wxn.io/35a03
FLUS43 KLOT 280419
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1119 PM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1119 PM CDT Tue Aug 27 2024 /1219 AM EDT Wed Aug 28 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 4 Flooding Risk.
Moderate Swim Risk for Lake Michigan beaches.
Minor Lakeshore Flooding Risk.
DISCUSSION...
Periods of showers and thunderstorms are expected to continue
overnight. The remaining severe weather threat overnight is low
though a localized gust to 50 to 60 mph can't be ruled out.
Rapid water level fluctuations will remain possible overnight
along the southern Lake Michigan shoreline.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 20 to 30 mph.
https://wxn.io/35a03
Severe Thunderstorm Watch Cancellation for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS63 KLOT 280210
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 658
NATIONAL WEATHER SERVICE CHICAGO IL
910 PM CDT TUE AUG 27 2024
/O.CAN.KLOT.SV.A.0658.000000T0000Z-240828T0400Z/
THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 658 FOR THE FOLLOWING AREAS
IN ILLINOIS THIS CANCELS 9 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE DE KALB LEE
OGLE WINNEBAGO
IN NORTHEAST ILLINOIS
DUPAGE KANE LAKE IL
MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BUFFALO GROVE, BYRON, CAROL STREAM, CRYSTAL LAKE, DEKALB, DIXON,
DOWNERS GROVE, ELGIN, GURNEE, LOMBARD, MCHENRY, MUNDELEIN,
NAPERVILLE, OREGON, ROCHELLE, ROCKFORD, SYCAMORE, WAUKEGAN,
WHEATON, AND WOODSTOCK.
https://wxn.io/0z02z
WWUS63 KLOT 280210
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 658
NATIONAL WEATHER SERVICE CHICAGO IL
910 PM CDT TUE AUG 27 2024
/O.CAN.KLOT.SV.A.0658.000000T0000Z-240828T0400Z/
THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 658 FOR THE FOLLOWING AREAS
IN ILLINOIS THIS CANCELS 9 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE DE KALB LEE
OGLE WINNEBAGO
IN NORTHEAST ILLINOIS
DUPAGE KANE LAKE IL
MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BUFFALO GROVE, BYRON, CAROL STREAM, CRYSTAL LAKE, DEKALB, DIXON,
DOWNERS GROVE, ELGIN, GURNEE, LOMBARD, MCHENRY, MUNDELEIN,
NAPERVILLE, OREGON, ROCHELLE, ROCKFORD, SYCAMORE, WAUKEGAN,
WHEATON, AND WOODSTOCK.
https://wxn.io/0z02z
Excessive Heat Warning Cancellation for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 280129
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
829 PM CDT Tue Aug 27 2024
/O.CAN.KLOT.EH.W.0001.000000T0000Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont,
Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
829 PM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING IS CANCELLED...
Outflow from thunderstorms will continue to overspread the area
this evening bringing an end to the oppressively hot conditions.
https://wxn.io/jari0
WWUS73 KLOT 280129
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
829 PM CDT Tue Aug 27 2024
/O.CAN.KLOT.EH.W.0001.000000T0000Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont,
Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
829 PM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING IS CANCELLED...
Outflow from thunderstorms will continue to overspread the area
this evening bringing an end to the oppressively hot conditions.
https://wxn.io/jari0
Severe Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 272256
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
556 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
556 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHEASTERN MCHENRY COUNTY...
At 556 PM CDT, a severe thunderstorm was located over McHenry, moving
east at 20 mph.
HAZARD...70 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Island Lake, Cary, Johnsburg, Lakemoor, Fox River Grove, Barrington
Hills, Wonder Lake, Lakewood, Pistakee Highlands, Oakwood Hills,
Prairie Grove, Port Barrington, Bull Valley, McCullom Lake, Ringwood,
Holiday Hills, Trout Valley, and Ridgefield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4218 8836 4229 8843 4239 8833
4239 8820
TIME...MOT...LOC 2256Z 277DEG 16KT 4231 8829
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
https://wxn.io/ffp02
WWUS53 KLOT 272256
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
556 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
556 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHEASTERN MCHENRY COUNTY...
At 556 PM CDT, a severe thunderstorm was located over McHenry, moving
east at 20 mph.
HAZARD...70 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Island Lake, Cary, Johnsburg, Lakemoor, Fox River Grove, Barrington
Hills, Wonder Lake, Lakewood, Pistakee Highlands, Oakwood Hills,
Prairie Grove, Port Barrington, Bull Valley, McCullom Lake, Ringwood,
Holiday Hills, Trout Valley, and Ridgefield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4218 8836 4229 8843 4239 8833
4239 8820
TIME...MOT...LOC 2256Z 277DEG 16KT 4231 8829
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
https://wxn.io/ffp02
Severe Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 272241
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
541 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
541 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EASTERN MCHENRY COUNTY...
At 540 PM CDT, a severe thunderstorm was located over Bull Valley, or
over Woodstock, moving east at 20 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder Lake,
Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills, Prairie
Grove, Richmond, Port Barrington, Bull Valley, and McCullom Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4216 8835 4226 8851 4244 8844
4250 8830 4249 8820
TIME...MOT...LOC 2240Z 277DEG 16KT 4232 8839
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/03m4f
WWUS53 KLOT 272241
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
541 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
541 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EASTERN MCHENRY COUNTY...
At 540 PM CDT, a severe thunderstorm was located over Bull Valley, or
over Woodstock, moving east at 20 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder Lake,
Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills, Prairie
Grove, Richmond, Port Barrington, Bull Valley, and McCullom Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4216 8835 4226 8851 4244 8844
4250 8830 4249 8820
TIME...MOT...LOC 2240Z 277DEG 16KT 4232 8839
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/03m4f
Severe Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 272228
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
528 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
528 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EASTERN MCHENRY COUNTY...
At 528 PM CDT, a severe thunderstorm was located over Woodstock,
moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder Lake,
Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills, Prairie
Grove, Richmond, Port Barrington, Bull Valley, and McCullom Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4215 8835 4223 8854 4240 8854
4250 8830 4249 8820
TIME...MOT...LOC 2228Z 277DEG 16KT 4233 8847
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/7nj2k
WWUS53 KLOT 272228
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
528 PM CDT Tue Aug 27 2024
/O.CON.KLOT.SV.W.0144.000000T0000Z-240827T2330Z/
McHenry IL-
528 PM CDT Tue Aug 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EASTERN MCHENRY COUNTY...
At 528 PM CDT, a severe thunderstorm was located over Woodstock,
moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder Lake,
Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills, Prairie
Grove, Richmond, Port Barrington, Bull Valley, and McCullom Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4215 8835 4223 8854 4240 8854
4250 8830 4249 8820
TIME...MOT...LOC 2228Z 277DEG 16KT 4233 8847
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/7nj2k
Severe Thunderstorm Warning for McHenry Co., IL until 6:30 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WUUS53 KLOT 272217
SVRLOT
/O.NEW.KLOT.SV.W.0144.240827T2217Z-240827T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville
517 PM CDT Tue Aug 27 2024
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for...
Eastern McHenry County in northeastern Illinois...
* Until 630 PM CDT.
* At 516 PM CDT, a severe thunderstorm was located near Woodstock,
moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder
Lake, Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills,
Prairie Grove, Richmond, Port Barrington, Bull Valley, and McCullom
Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4215 8835 4223 8854 4240 8854
4250 8830 4249 8820
TIME...MOT...LOC 2216Z 277DEG 16KT 4234 8854
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/nlj8w
WUUS53 KLOT 272217
SVRLOT
/O.NEW.KLOT.SV.W.0144.240827T2217Z-240827T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville
517 PM CDT Tue Aug 27 2024
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for...
Eastern McHenry County in northeastern Illinois...
* Until 630 PM CDT.
* At 516 PM CDT, a severe thunderstorm was located near Woodstock,
moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Crystal Lake, Algonquin, Lake in the Hills, McHenry, Woodstock,
Huntley, Fox Lake, Island Lake, Cary, Johnsburg, Lakemoor, Twin
Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder
Lake, Lakewood, Pistakee Highlands, Genoa City, Oakwood Hills,
Prairie Grove, Richmond, Port Barrington, Bull Valley, and McCullom
Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4216 8820 4215 8835 4223 8854 4240 8854
4250 8830 4249 8820
TIME...MOT...LOC 2216Z 277DEG 16KT 4234 8854
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/nlj8w
Severe Thunderstorm Watch for McHenry Co., IL until 11:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS63 KLOT 272210
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 658
NATIONAL WEATHER SERVICE CHICAGO IL
510 PM CDT TUE AUG 27 2024
/O.NEW.KLOT.SV.A.0658.240827T2210Z-240828T0400Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
658 IN EFFECT UNTIL 11 PM CDT /MIDNIGHT EDT/ THIS EVENING FOR THE
FOLLOWING AREAS
IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES
IN CENTRAL ILLINOIS
LIVINGSTON
IN EAST CENTRAL ILLINOIS
FORD IROQUOIS
IN NORTH CENTRAL ILLINOIS
BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO
IN NORTHEAST ILLINOIS
COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL
IN INDIANA THIS WATCH INCLUDES 5 COUNTIES
IN NORTHWEST INDIANA
BENTON JASPER LAKE IN
NEWTON PORTER
THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHESTERTON, CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DEMOTTE,
DIXON, DOWNERS GROVE, DWIGHT, ELGIN, EVANSTON, FAIRBURY, FOWLER,
GARY, GIBSON CITY, GILMAN, GURNEE, HAMMOND, JOLIET, KANKAKEE,
KENTLAND, LA SALLE, LEMONT, LOMBARD, MARSEILLES, MCHENRY,
MENDOTA, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, MUNDELEIN,
NAPERVILLE, OAK LAWN, OREGON, ORLAND PARK, OSWEGO, OTTAWA,
OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC, PORTAGE, RENSSELAER,
ROCHELLE, ROCKFORD, ROSELAWN, SCHAUMBURG, STREATOR, SYCAMORE,
VALPARAISO, WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK,
AND YORKVILLE.
https://wxn.io/9w7o4
WWUS63 KLOT 272210
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 658
NATIONAL WEATHER SERVICE CHICAGO IL
510 PM CDT TUE AUG 27 2024
/O.NEW.KLOT.SV.A.0658.240827T2210Z-240828T0400Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
658 IN EFFECT UNTIL 11 PM CDT /MIDNIGHT EDT/ THIS EVENING FOR THE
FOLLOWING AREAS
IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES
IN CENTRAL ILLINOIS
LIVINGSTON
IN EAST CENTRAL ILLINOIS
FORD IROQUOIS
IN NORTH CENTRAL ILLINOIS
BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO
IN NORTHEAST ILLINOIS
COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL
IN INDIANA THIS WATCH INCLUDES 5 COUNTIES
IN NORTHWEST INDIANA
BENTON JASPER LAKE IN
NEWTON PORTER
THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHESTERTON, CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DEMOTTE,
DIXON, DOWNERS GROVE, DWIGHT, ELGIN, EVANSTON, FAIRBURY, FOWLER,
GARY, GIBSON CITY, GILMAN, GURNEE, HAMMOND, JOLIET, KANKAKEE,
KENTLAND, LA SALLE, LEMONT, LOMBARD, MARSEILLES, MCHENRY,
MENDOTA, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, MUNDELEIN,
NAPERVILLE, OAK LAWN, OREGON, ORLAND PARK, OSWEGO, OTTAWA,
OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC, PORTAGE, RENSSELAER,
ROCHELLE, ROCKFORD, ROSELAWN, SCHAUMBURG, STREATOR, SYCAMORE,
VALPARAISO, WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK,
AND YORKVILLE.
https://wxn.io/9w7o4
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 272044
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
344 PM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
344 PM CDT Tue Aug 27 2024 /444 PM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Hail Risk...up to penny size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will persist into this evening with
heat indices expected to drop below 100 degrees after sunset.
There remains a chance (30-40 percent) of scattered strong to
severe thunderstorms this evening into tonight. Damaging winds
would be the primary threat with any storms. Storms may also
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/a86vc
FLUS43 KLOT 272044
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
344 PM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
344 PM CDT Tue Aug 27 2024 /444 PM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Hail Risk...up to penny size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will persist into this evening with
heat indices expected to drop below 100 degrees after sunset.
There remains a chance (30-40 percent) of scattered strong to
severe thunderstorms this evening into tonight. Damaging winds
would be the primary threat with any storms. Storms may also
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/a86vc
Excessive Heat Warning for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 272031
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
331 PM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.000000T0000Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
331 PM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, east central, north central and
northeast Illinois.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/ps91x
WWUS73 KLOT 272031
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
331 PM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.000000T0000Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
331 PM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, east central, north central and
northeast Illinois.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/ps91x
Severe Thunderstorm Watch Cancellation for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS63 KLOT 271932
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
232 PM CDT TUE AUG 27 2024
/O.CAN.KLOT.SV.A.0655.000000T0000Z-240827T2100Z/
THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 655 FOR THE FOLLOWING AREAS
IN ILLINOIS THIS CANCELS 3 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/62gjd
WWUS63 KLOT 271932
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
232 PM CDT TUE AUG 27 2024
/O.CAN.KLOT.SV.A.0655.000000T0000Z-240827T2100Z/
THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 655 FOR THE FOLLOWING AREAS
IN ILLINOIS THIS CANCELS 3 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/62gjd
Severe Thunderstorm Watch for McHenry Co., IL until 4:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS63 KLOT 271848
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
148 PM CDT TUE AUG 27 2024
/O.CON.KLOT.SV.A.0655.000000T0000Z-240827T2100Z/
SEVERE THUNDERSTORM WATCH 655 REMAINS VALID UNTIL 4 PM CDT THIS
AFTERNOON FOR THE FOLLOWING AREAS
IN ILLINOIS THIS WATCH INCLUDES 3 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/el83k
WWUS63 KLOT 271848
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
148 PM CDT TUE AUG 27 2024
/O.CON.KLOT.SV.A.0655.000000T0000Z-240827T2100Z/
SEVERE THUNDERSTORM WATCH 655 REMAINS VALID UNTIL 4 PM CDT THIS
AFTERNOON FOR THE FOLLOWING AREAS
IN ILLINOIS THIS WATCH INCLUDES 3 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/el83k
Severe Thunderstorm Watch for McHenry Co., IL until 4:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS63 KLOT 271704
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
1204 PM CDT TUE AUG 27 2024
/O.NEW.KLOT.SV.A.0655.240827T1705Z-240827T2100Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
655 IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON FOR THE FOLLOWING
AREAS
IN ILLINOIS THIS WATCH INCLUDES 4 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE WINNEBAGO
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, ROCKFORD, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/g1crs
WWUS63 KLOT 271704
WCNLOT
WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
1204 PM CDT TUE AUG 27 2024
/O.NEW.KLOT.SV.A.0655.240827T1705Z-240827T2100Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
655 IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON FOR THE FOLLOWING
AREAS
IN ILLINOIS THIS WATCH INCLUDES 4 COUNTIES
IN NORTH CENTRAL ILLINOIS
BOONE WINNEBAGO
IN NORTHEAST ILLINOIS
LAKE IL MCHENRY
THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, ROCKFORD, WAUKEGAN,
AND WOODSTOCK.
https://wxn.io/g1crs
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 271555
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1055 AM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1055 AM CDT Tue Aug 27 2024 /1155 AM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will persist through this afternoon with
heat indices expected to peak between 105 to 115 degrees.
There is a chance (40-50 percent) of scattered strong to severe
thunderstorms from late afternoon into this evening. Damaging
winds are the primary threat, though isolated large hail is also
possible. Storms may also produce locally heavy rainfall with the
potential for localized flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/cl8a9
FLUS43 KLOT 271555
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1055 AM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1055 AM CDT Tue Aug 27 2024 /1155 AM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will persist through this afternoon with
heat indices expected to peak between 105 to 115 degrees.
There is a chance (40-50 percent) of scattered strong to severe
thunderstorms from late afternoon into this evening. Damaging
winds are the primary threat, though isolated large hail is also
possible. Storms may also produce locally heavy rainfall with the
potential for localized flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/cl8a9
Excessive Heat Warning for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 271457
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
957 AM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
957 AM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, east central, north central and
northeast Illinois.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/te2sm
WWUS73 KLOT 271457
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
957 AM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
957 AM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, east central, north central and
northeast Illinois.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/te2sm
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 271013
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
513 AM CDT Tue Aug 27 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
513 AM CDT Tue Aug 27 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
A Chicago area Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/marui
AEUS73 KLOT 271013
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
513 AM CDT Tue Aug 27 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
513 AM CDT Tue Aug 27 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
A Chicago area Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/marui
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 270950
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
450 AM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
450 AM CDT Tue Aug 27 2024 /550 AM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 65 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Another day of very hot and humid weather is expected today.
Afternoon highs in the mid to upper 90s are expected, with peak
heat indices of 105 to 115.
There is a chance (40-50 percent) of scattered strong to severe
thunderstorms from late afternoon into this evening. Damaging
winds are the primary threat, though isolated large hail is also
possible. Storms may also produce locally heavy rainfall with the
potential for localized flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/fqalw
FLUS43 KLOT 270950
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
450 AM CDT Tue Aug 27 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
450 AM CDT Tue Aug 27 2024 /550 AM EDT Tue Aug 27 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 65 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Level 1 of 4 Flooding Risk.
Significant Excessive Heat Risk.
DISCUSSION...
Another day of very hot and humid weather is expected today.
Afternoon highs in the mid to upper 90s are expected, with peak
heat indices of 105 to 115.
There is a chance (40-50 percent) of scattered strong to severe
thunderstorms from late afternoon into this evening. Damaging
winds are the primary threat, though isolated large hail is also
possible. Storms may also produce locally heavy rainfall with the
potential for localized flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 30 mph.
https://wxn.io/fqalw
Excessive Heat Warning for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 270903
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
403 AM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
403 AM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
10 PM CDT THIS EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...From noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/807vy
WWUS73 KLOT 270903
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
403 AM CDT Tue Aug 27 2024
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
403 AM CDT Tue Aug 27 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
10 PM CDT THIS EVENING...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...From noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/807vy
Monday, August 26, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 270248
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
948 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
948 PM CDT Mon Aug 26 2024 /1048 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph .
DISCUSSION...
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that
some of these storms could clip far northern or northeast
Illinois, mainly north of Interstate 90. If storms do affect the
area late tonight, they may be capable of localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Significant Excessive Heat Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Level 1 of 4 Flooding Risk
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions will persist Tuesday, likely
with the hottest temperatures of the year in many locations. Peak
afternoon heat indices of 105 to 115 degrees are forecast.
There is a chance (around 40 percent) of scattered thunderstorms
late Tuesday afternoon and Tuesday night. Some of these storms
could be severe, with damaging winds the primary threat and
isolated large hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 30 mph.
https://wxn.io/a6pm6
FLUS43 KLOT 270248
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
948 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
948 PM CDT Mon Aug 26 2024 /1048 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph .
DISCUSSION...
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that
some of these storms could clip far northern or northeast
Illinois, mainly north of Interstate 90. If storms do affect the
area late tonight, they may be capable of localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Significant Excessive Heat Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Level 1 of 4 Flooding Risk
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions will persist Tuesday, likely
with the hottest temperatures of the year in many locations. Peak
afternoon heat indices of 105 to 115 degrees are forecast.
There is a chance (around 40 percent) of scattered thunderstorms
late Tuesday afternoon and Tuesday night. Some of these storms
could be severe, with damaging winds the primary threat and
isolated large hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 30 mph.
https://wxn.io/a6pm6
Heat Advisory Expiration for McHenry Co., IL, Excessive Heat Warning for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 270129
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
829 PM CDT Mon Aug 26 2024
/O.EXP.KLOT.HT.Y.0002.000000T0000Z-240827T0100Z/
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
829 PM CDT Mon Aug 26 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TO 10 PM
CDT TUESDAY...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...From noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/z9pfv
WWUS73 KLOT 270129
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
829 PM CDT Mon Aug 26 2024
/O.EXP.KLOT.HT.Y.0002.000000T0000Z-240827T0100Z/
/O.CON.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
829 PM CDT Mon Aug 26 2024
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TO 10 PM
CDT TUESDAY...
* WHAT...Dangerously hot conditions with heat index values up to
110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...From noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/z9pfv
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 262112 CCA
HWOLOT
Hazardous Weather Outlook...CORRECTED
National Weather Service Chicago/Romeoville IL
412 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
412 PM CDT Mon Aug 26 2024 /512 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Elevated Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions continue to build across the area this
afternoon. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/3zw1n
FLUS43 KLOT 262112 CCA
HWOLOT
Hazardous Weather Outlook...CORRECTED
National Weather Service Chicago/Romeoville IL
412 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
412 PM CDT Mon Aug 26 2024 /512 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Elevated Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions continue to build across the area this
afternoon. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/3zw1n
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 262046
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
346 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
346 PM CDT Mon Aug 26 2024 /446 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Elevated Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions continue to build across the this
afternoon. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/55ew7
FLUS43 KLOT 262046
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
346 PM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
346 PM CDT Mon Aug 26 2024 /446 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Elevated Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions continue to build across the this
afternoon. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed Tuesday evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/55ew7
Excessive Heat Warning for McHenry Co., IL until 10:00 PM CDT 8/27, Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 261932
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
232 PM CDT Mon Aug 26 2024
/O.UPG.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
/O.EXB.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
/O.CON.KLOT.HT.Y.0002.000000T0000Z-240827T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
232 PM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TO 10 PM CDT
TUESDAY...
* WHAT...For the Heat Advisory this afternoon, heat index values
up to 105. For the Excessive Heat Warning, dangerously hot
conditions with heat index values up to 110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For
the Excessive Heat Warning, from noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/zoicv
WWUS73 KLOT 261932
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
232 PM CDT Mon Aug 26 2024
/O.UPG.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
/O.EXB.KLOT.EH.W.0001.240827T1700Z-240828T0300Z/
/O.CON.KLOT.HT.Y.0002.000000T0000Z-240827T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
232 PM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TO 10 PM CDT
TUESDAY...
* WHAT...For the Heat Advisory this afternoon, heat index values
up to 105. For the Excessive Heat Warning, dangerously hot
conditions with heat index values up to 110 to 115 expected.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For
the Excessive Heat Warning, from noon to 10 PM CDT Tuesday.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.
&&
https://wxn.io/zoicv
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 261704
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1204 PM CDT Mon Aug 26 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
1204 PM CDT Mon Aug 26 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for the greater Chicago Metropolitan Area and
is IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT.
A Chicago area Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/g7g65
AEUS73 KLOT 261704
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1204 PM CDT Mon Aug 26 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
1204 PM CDT Mon Aug 26 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for the greater Chicago Metropolitan Area and
is IN EFFECT UNTIL MIDNIGHT CDT TUESDAY NIGHT.
A Chicago area Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/g7g65
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 261626
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1126 AM CDT Mon Aug 26 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
1126 AM CDT Mon Aug 26 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/kp786
AEUS73 KLOT 261626
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1126 AM CDT Mon Aug 26 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
1126 AM CDT Mon Aug 26 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/kp786
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 261623
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1123 AM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1123 AM CDT Mon Aug 26 2024 /1223 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will continue to build across the area
today. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/vz9rr
FLUS43 KLOT 261623
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1123 AM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1123 AM CDT Mon Aug 26 2024 /1223 PM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid conditions will continue to build across the area
today. Areas from Chicago west and southwest will see peak
afternoon heat indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/vz9rr
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 261504
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1004 AM CDT Mon Aug 26 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
1004 AM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
109 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For
the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/3u1l1
WWUS73 KLOT 261504
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1004 AM CDT Mon Aug 26 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
1004 AM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
109 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For
the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/3u1l1
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 260928
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
428 AM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
428 AM CDT Mon Aug 26 2024 /528 AM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid with will continue to build across the area today.
Areas from Chicago west and southwest will see peak afternoon heat
indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/a7vsv
FLUS43 KLOT 260928
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
428 AM CDT Mon Aug 26 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
428 AM CDT Mon Aug 26 2024 /528 AM EDT Mon Aug 26 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Significant Excessive Heat Risk.
DISCUSSION...
Hot and humid with will continue to build across the area today.
Areas from Chicago west and southwest will see peak afternoon heat
indices around 105 degrees.
Thunderstorms are expected to move east across Wisconsin late
tonight. There is a slight (less than 20 percent) chance that some
of these storms could clip far northern or northeast Illinois,
mainly north of Interstate 90. If storms do affect the area late
tonight, they may be capable of producing localized damaging wind
gusts to 60 mph.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid weather conditions will persist
Tuesday, likely with the hottest temperatures of the year in many
locations. Peak afternoon heat indices of 105 to 115 degrees are
forecast.
There is a slight chance of isolated to scattered thunderstorms
early Tuesday morning, mainly north of I-90. There is a greater
chance (around 40 percent) of scattered thunderstorms late Tuesday
afternoon and Tuesday night. Some of these storms could be
severe, with damaging winds the primary threat, and isolated large
hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast at 25 mph.
https://wxn.io/a7vsv
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 260902
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
402 AM CDT Mon Aug 26 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
402 AM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT
THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
109 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/p2tef
WWUS73 KLOT 260902
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
402 AM CDT Mon Aug 26 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
402 AM CDT Mon Aug 26 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT
THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
109 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/p2tef
Sunday, August 25, 2024
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 260211
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
911 PM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
911 PM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105
to 108 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to
115 possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/ptmoh
WWUS73 KLOT 260211
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
911 PM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
911 PM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105
to 108 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to
115 possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/ptmoh
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 252034
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
334 PM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
334 PM CDT Sun Aug 25 2024 /434 PM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are forecast.
There is a chance of scattered thunderstorms Tuesday evening and
night. Some of these storms could be severe, with damaging winds
the primary threat, and isolated large hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/pwat9
FLUS43 KLOT 252034
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
334 PM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
334 PM CDT Sun Aug 25 2024 /434 PM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Significant to Extreme Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are forecast.
There is a chance of scattered thunderstorms Tuesday evening and
night. Some of these storms could be severe, with damaging winds
the primary threat, and isolated large hail also possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/pwat9
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 251913
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
213 PM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
213 PM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
108 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/y6a65
WWUS73 KLOT 251913
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
213 PM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
213 PM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values of 105 to
108 are expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/y6a65
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 251907
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
207 PM CDT Sun Aug 25 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
207 PM CDT Sun Aug 25 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT MONDAY NIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT MONDAY NIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/0z5zh
AEUS73 KLOT 251907
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
207 PM CDT Sun Aug 25 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
207 PM CDT Sun Aug 25 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT MONDAY NIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT MONDAY NIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/0z5zh
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 251705
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1205 PM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1205 PM CDT Sun Aug 25 2024 /105 PM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Extreme Excessive Heat Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are possible.
There is a chance of scattered thunderstorms Tuesday,
particularly Tuesday night. Some of these storms could be severe,
with damaging winds the primary threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/0f06p
FLUS43 KLOT 251705
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1205 PM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1205 PM CDT Sun Aug 25 2024 /105 PM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Extreme Excessive Heat Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are possible.
There is a chance of scattered thunderstorms Tuesday,
particularly Tuesday night. Some of these storms could be severe,
with damaging winds the primary threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/0f06p
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 251528
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1028 AM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
1028 AM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values around
105 expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to
115 possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/68g29
WWUS73 KLOT 251528
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1028 AM CDT Sun Aug 25 2024
/O.CON.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.CON.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
1028 AM CDT Sun Aug 25 2024
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values around
105 expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to
115 possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/68g29
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 250909
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
409 AM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
409 AM CDT Sun Aug 25 2024 /509 AM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk this morning, mainly near and west of
I-39.
DISCUSSION...
There is a slight chance for isolated thunderstorms this morning,
mainly near and west of I-39 in north central and northwest
Illinois.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Extreme Excessive Heat Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are possible.
There is a chance of scattered thunderstorms Tuesday,
particularly Tuesday night. Some of these storms could be severe,
with damaging winds the primary threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at around 20 mph.
https://wxn.io/8odgq
FLUS43 KLOT 250909
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
409 AM CDT Sun Aug 25 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
409 AM CDT Sun Aug 25 2024 /509 AM EDT Sun Aug 25 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk this morning, mainly near and west of
I-39.
DISCUSSION...
There is a slight chance for isolated thunderstorms this morning,
mainly near and west of I-39 in north central and northwest
Illinois.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Significant Excessive Heat Risk.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Extreme Excessive Heat Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerously hot and humid conditions are expected Monday into
Tuesday, with the hottest conditions expected on Tuesday. Peak
afternoon heat indices of 105 to 115 degrees are possible.
There is a chance of scattered thunderstorms Tuesday,
particularly Tuesday night. Some of these storms could be severe,
with damaging winds the primary threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at around 20 mph.
https://wxn.io/8odgq
Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/26, Excessive Heat Watch for McHenry Co., IL until 10:00 PM CDT 8/27
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 250835
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
335 AM CDT Sun Aug 25 2024
/O.NEW.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.EXB.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
335 AM CDT Sun Aug 25 2024
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values around
105 expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/p3hsi
WWUS73 KLOT 250835
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
335 AM CDT Sun Aug 25 2024
/O.NEW.KLOT.HT.Y.0002.240826T1700Z-240827T0100Z/
/O.EXB.KLOT.EH.A.0001.240827T1700Z-240828T0300Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Livingston-Northern Will-Southern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Pontiac, Dwight, Fairbury, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, and Wilmington
335 AM CDT Sun Aug 25 2024
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...
* WHAT...For the Heat Advisory Monday, heat index values around
105 expected. For the Excessive Heat Watch on Tuesday,
dangerously hot conditions with heat index values of 110 to 115
possible.
* WHERE...Portions of central, north central and northeast
Illinois.
* WHEN...For the Heat Advisory, from noon to 8 PM CDT Monday.
For the Excessive Heat Watch, from Tuesday afternoon through
Tuesday evening.
* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.
Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.
&&
https://wxn.io/p3hsi
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 250758
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
258 AM CDT Sun Aug 25 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
258 AM CDT Sun Aug 25 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/jvydk
AEUS73 KLOT 250758
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
258 AM CDT Sun Aug 25 2024
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
258 AM CDT Sun Aug 25 2024
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/jvydk
Saturday, August 24, 2024
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 250257 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
957 PM CDT Sat Aug 24 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
957 PM CDT Sat Aug 24 2024 /1057 PM EDT Sat Aug 24 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk, mainly near and west of I-39.
DISCUSSION...
There is a slight chance for thunderstorms tonight, mainly near
and west of I-39.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday Morning...
Limited Thunderstorm Risk, mainly near and west of I-39.
Monday...
Elevated Excessive Heat Risk.
Tuesday...
Significant Excessive Heat Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A stretch of dangerously hot and humid conditions is expected
early next week, especially Monday and Tuesday. The hottest
conditions are expected on Tuesday, with peak heat indices of 105
to 115 degrees possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast around 20 mph.
https://wxn.io/paaec
FLUS43 KLOT 250257 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
957 PM CDT Sat Aug 24 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
957 PM CDT Sat Aug 24 2024 /1057 PM EDT Sat Aug 24 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk, mainly near and west of I-39.
DISCUSSION...
There is a slight chance for thunderstorms tonight, mainly near
and west of I-39.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday Morning...
Limited Thunderstorm Risk, mainly near and west of I-39.
Monday...
Elevated Excessive Heat Risk.
Tuesday...
Significant Excessive Heat Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Wednesday through Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A stretch of dangerously hot and humid conditions is expected
early next week, especially Monday and Tuesday. The hottest
conditions are expected on Tuesday, with peak heat indices of 105
to 115 degrees possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast around 20 mph.
https://wxn.io/paaec
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 242003
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
303 PM CDT Sat Aug 24 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
303 PM CDT Sat Aug 24 2024 /403 PM EDT Sat Aug 24 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk overnight, mainly near I-39
DISCUSSION...
There is a chance for thunderstorms tonight, mainly in the
vicinity of I-39.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday...
Limited Thunderstorm Risk in the morning.
Monday and Tuesday...
Elevated to Significant Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A stretch of dangerously hot and humid conditions is expected
early next week, especially Monday and Tuesday. The hottest
conditions are expected on Tuesday, with peak heat indices of 105
to 115 degrees possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast around 20 mph.
https://wxn.io/jqxl7
FLUS43 KLOT 242003
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
303 PM CDT Sat Aug 24 2024
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
303 PM CDT Sat Aug 24 2024 /403 PM EDT Sat Aug 24 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk overnight, mainly near I-39
DISCUSSION...
There is a chance for thunderstorms tonight, mainly in the
vicinity of I-39.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday...
Limited Thunderstorm Risk in the morning.
Monday and Tuesday...
Elevated to Significant Excessive Heat Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A stretch of dangerously hot and humid conditions is expected
early next week, especially Monday and Tuesday. The hottest
conditions are expected on Tuesday, with peak heat indices of 105
to 115 degrees possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast around 20 mph.
https://wxn.io/jqxl7
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