C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 060834
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
334 AM CDT Fri Jun 6 2025
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 AM CDT Fri Jun 6 2025 /434 AM EDT Fri Jun 6 2025/
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...Saturday through Thursday.
Saturday...
Limited Thunderstorm Risk south of I-80.
Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/fm1st
Friday, June 6, 2025
Thursday, June 5, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 052132
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
432 PM CDT Thu Jun 5 2025
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-
432 PM CDT Thu Jun 5 2025 /532 PM EDT Thu Jun 5 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
While no hazardous weather is expected, smoke from Canadian
wildfires will continue to result in poor air quality.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday...
Limited Thunderstorm Risk south of I-80.
Sunday...
Limited Thunderstorm Risk, particularly northwest of I-55.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/tw3d1
FLUS43 KLOT 052132
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
432 PM CDT Thu Jun 5 2025
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-
432 PM CDT Thu Jun 5 2025 /532 PM EDT Thu Jun 5 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
While no hazardous weather is expected, smoke from Canadian
wildfires will continue to result in poor air quality.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday...
Limited Thunderstorm Risk south of I-80.
Sunday...
Limited Thunderstorm Risk, particularly northwest of I-55.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/tw3d1
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 051830
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
130 PM CDT Thu Jun 5 2025
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
130 PM CDT Thu Jun 5 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT FRIDAY NIGHT...
The Illinois Environmental Protection Agency has extended the Air
Pollution Action Day for the greater Chicago Metropolitan Area and
IS NOW IN EFFECT UNTIL MIDNIGHT CDT FRIDAY 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
(USG) category of the Air Quality Index for multiple days. Wildfire
smoke is expected to continue to have an impact on particulate levels
with daily 24 hour AQI forecasts at USG or higher through Friday.
USG category - Active children and adults, especially people with
pulmonary or respiratory disease such as asthma, should limit
prolonged outdoor activity.
Unhealthy category - Everyone should reduce prolonged activities or
heavy exertion outdoors. Active children, older adults, and people
with pulmonary or respiratory disease such as asthma should avoid
prolonged activities or heavy exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, ...
https://wxn.io/3pbdy
AEUS73 KLOT 051830
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
130 PM CDT Thu Jun 5 2025
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
130 PM CDT Thu Jun 5 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT FRIDAY NIGHT...
The Illinois Environmental Protection Agency has extended the Air
Pollution Action Day for the greater Chicago Metropolitan Area and
IS NOW IN EFFECT UNTIL MIDNIGHT CDT FRIDAY 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
(USG) category of the Air Quality Index for multiple days. Wildfire
smoke is expected to continue to have an impact on particulate levels
with daily 24 hour AQI forecasts at USG or higher through Friday.
USG category - Active children and adults, especially people with
pulmonary or respiratory disease such as asthma, should limit
prolonged outdoor activity.
Unhealthy category - Everyone should reduce prolonged activities or
heavy exertion outdoors. Active children, older adults, and people
with pulmonary or respiratory disease such as asthma should avoid
prolonged activities or heavy exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, ...
https://wxn.io/3pbdy
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 051620 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
1120 AM CDT Thu Jun 5 2025
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-
1120 AM CDT Thu Jun 5 2025 /1220 PM EDT Thu Jun 5 2025/
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...Friday through Wednesday.
Saturday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/6k8fe
FLUS43 KLOT 051620 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
1120 AM CDT Thu Jun 5 2025
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-
1120 AM CDT Thu Jun 5 2025 /1220 PM EDT Thu Jun 5 2025/
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...Friday through Wednesday.
Saturday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/6k8fe
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 050859
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
359 AM CDT Thu Jun 5 2025
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-
359 AM CDT Thu Jun 5 2025 /459 AM EDT Thu Jun 5 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Elevated Fog Risk early this morning.
DISCUSSION...
Areas of dense fog near the I-80 corridor in Illinois will
dissipate early this morning. There could also be some patches of
dense fog oozing just barely inland along Lake Michigan beaches,
mainly this morning.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/43fq5
FLUS43 KLOT 050859
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
359 AM CDT Thu Jun 5 2025
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-
359 AM CDT Thu Jun 5 2025 /459 AM EDT Thu Jun 5 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Elevated Fog Risk early this morning.
DISCUSSION...
Areas of dense fog near the I-80 corridor in Illinois will
dissipate early this morning. There could also be some patches of
dense fog oozing just barely inland along Lake Michigan beaches,
mainly this morning.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/43fq5
Wednesday, June 4, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 050242 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
942 PM CDT Wed Jun 4 2025
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-
942 PM CDT Wed Jun 4 2025 /1042 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
Isolated thunderstorms are possible overnight generally south of
a Bloomington, IL to Rensselaer, IN line. No severe weather is
expected with these storms, though pockets of locally heavier
rainfall in these areas could lead to minor localized flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday morning...
Limited Thunderstorm Risk well south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 35 mph.
https://wxn.io/palru
FLUS43 KLOT 050242 AAA
HWOLOT
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
942 PM CDT Wed Jun 4 2025
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-
942 PM CDT Wed Jun 4 2025 /1042 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
Isolated thunderstorms are possible overnight generally south of
a Bloomington, IL to Rensselaer, IN line. No severe weather is
expected with these storms, though pockets of locally heavier
rainfall in these areas could lead to minor localized flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday morning...
Limited Thunderstorm Risk well south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 35 mph.
https://wxn.io/palru
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 042108
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
408 PM CDT Wed Jun 4 2025
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-
408 PM CDT Wed Jun 4 2025 /508 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
A few thunderstorms may occur through early this evening south of
a Pontiac, IL to Valparaiso, IN line. Some of these storms could
be strong with the main hazards being lightning and gusty winds.
Pockets of locally heavier rainfall in those areas may continue
through tonight which could lead to localized flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday morning...
Limited Thunderstorm Risk well south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/7qrte
FLUS43 KLOT 042108
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
408 PM CDT Wed Jun 4 2025
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-
408 PM CDT Wed Jun 4 2025 /508 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
A few thunderstorms may occur through early this evening south of
a Pontiac, IL to Valparaiso, IN line. Some of these storms could
be strong with the main hazards being lightning and gusty winds.
Pockets of locally heavier rainfall in those areas may continue
through tonight which could lead to localized flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday morning...
Limited Thunderstorm Risk well south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/7qrte
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 041815
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
115 PM CDT Wed Jun 4 2025
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-
115 PM CDT Wed Jun 4 2025 /215 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
A few thunderstorms may occur this afternoon south of a
Valparaiso, IN to Pontiac, IL line. An isolated severe thunderstorm
or two with locally damaging winds to 60 mph cannot be ruled out.
Pockets of locally heavier rainfall may occur south of Interstate
80 through tonight and may cause ponding on streets and parking lots
and result in minor flooding of fields and ditches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday afternoon and night...
Limited Thunderstorm Risk well south of I-80.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed between 2 pm and 8 pm southeast of a
Valparaiso to Pontiac line.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/u3mla
FLUS43 KLOT 041815
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
115 PM CDT Wed Jun 4 2025
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-
115 PM CDT Wed Jun 4 2025 /215 PM EDT Wed Jun 4 2025/
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.
Limited Flooding Risk.
DISCUSSION...
A few thunderstorms may occur this afternoon south of a
Valparaiso, IN to Pontiac, IL line. An isolated severe thunderstorm
or two with locally damaging winds to 60 mph cannot be ruled out.
Pockets of locally heavier rainfall may occur south of Interstate
80 through tonight and may cause ponding on streets and parking lots
and result in minor flooding of fields and ditches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday afternoon and night...
Limited Thunderstorm Risk well south of I-80.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed between 2 pm and 8 pm southeast of a
Valparaiso to Pontiac line.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/u3mla
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 041754
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1254 PM CDT Wed Jun 4 2025
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
1254 PM CDT Wed Jun 4 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT THURSDAY NIGHT...
The Illinois Environmental Protection Agency has declared an Air
Pollution Action Day for the greater Chicago Metropolitan Area, which
is IN EFFECT UNTIL MIDNIGHT CDT THURSDAY 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
(USG) category of the Air Quality Index for multiple days. Wildfire
smoke is expected to continue to have an impact on particulate levels
with the daily 24-hour AQI forecast expected to remain in the USG
category today and tomorrow.
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/czx70
AEUS73 KLOT 041754
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1254 PM CDT Wed Jun 4 2025
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
1254 PM CDT Wed Jun 4 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT THURSDAY NIGHT...
The Illinois Environmental Protection Agency has declared an Air
Pollution Action Day for the greater Chicago Metropolitan Area, which
is IN EFFECT UNTIL MIDNIGHT CDT THURSDAY 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
(USG) category of the Air Quality Index for multiple days. Wildfire
smoke is expected to continue to have an impact on particulate levels
with the daily 24-hour AQI forecast expected to remain in the USG
category today and tomorrow.
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/czx70
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 040910
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
410 AM CDT Wed Jun 4 2025
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-
410 AM CDT Wed Jun 4 2025 /510 AM EDT Wed Jun 4 2025/
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.
DISCUSSION...
A few thunderstorms are expected this afternoon southeast of a
Valparaiso to Pontiac line. An isolated severe thunderstorm or two
with locally damaging winds to 60 mph cannot be ruled out.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday afternoon and night...
Limited Thunderstorm Risk well south of I-80.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed between 2 pm and 8 pm southeast of a
Valparaiso to Pontiac line.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/4pzze
FLUS43 KLOT 040910
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
410 AM CDT Wed Jun 4 2025
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-
410 AM CDT Wed Jun 4 2025 /510 AM EDT Wed Jun 4 2025/
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.
DISCUSSION...
A few thunderstorms are expected this afternoon southeast of a
Valparaiso to Pontiac line. An isolated severe thunderstorm or two
with locally damaging winds to 60 mph cannot be ruled out.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday afternoon and night...
Limited Thunderstorm Risk well south of I-80.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed between 2 pm and 8 pm southeast of a
Valparaiso to Pontiac line.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 to 40 mph.
https://wxn.io/4pzze
Tuesday, June 3, 2025
Special Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS83 KLOT 040219
SPSLOT
Special Weather Statement
National Weather Service Chicago/Romeoville
919 PM CDT Tue Jun 3 2025
Kane IL-De Kalb IL-Boone IL-McHenry IL-
919 PM CDT Tue Jun 3 2025
...STRONG THUNDERSTORMS WILL IMPACT NORTHEASTERN DE KALB...NORTHERN
KANE...MCHENRY AND NORTHEASTERN BOONE COUNTIES THROUGH 945 PM CDT...
At 919 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sharon to Marengo to near Maple Park.
Movement was northeast at 55 mph.
HAZARD...Wind gusts of up to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Oakwood Hills, Algonquin, Lily Lake, Woodstock, West Dundee,
Ridgefield, South Elgin, Garden Prairie, Chemung, Huntley, Greenwood,
Gilberts, Lakewood, Marengo, Crystal Lake, Sleepy Hollow, Richmond,
Capron, Carpentersville, Spring Grove, McCullom Lake, Union, Harvard,
Campton Hills, and Hebron.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central Illinois.
&&
LAT...LON 4243 8823 4207 8825 4207 8826 4200 8826
4185 8861 4219 8870 4249 8890 4250 8828
TIME...MOT...LOC 0219Z 235DEG 48KT 4251 8880 4224 8862 4194 8855
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
https://wxn.io/zugh6
WWUS83 KLOT 040219
SPSLOT
Special Weather Statement
National Weather Service Chicago/Romeoville
919 PM CDT Tue Jun 3 2025
Kane IL-De Kalb IL-Boone IL-McHenry IL-
919 PM CDT Tue Jun 3 2025
...STRONG THUNDERSTORMS WILL IMPACT NORTHEASTERN DE KALB...NORTHERN
KANE...MCHENRY AND NORTHEASTERN BOONE COUNTIES THROUGH 945 PM CDT...
At 919 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sharon to Marengo to near Maple Park.
Movement was northeast at 55 mph.
HAZARD...Wind gusts of up to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Oakwood Hills, Algonquin, Lily Lake, Woodstock, West Dundee,
Ridgefield, South Elgin, Garden Prairie, Chemung, Huntley, Greenwood,
Gilberts, Lakewood, Marengo, Crystal Lake, Sleepy Hollow, Richmond,
Capron, Carpentersville, Spring Grove, McCullom Lake, Union, Harvard,
Campton Hills, and Hebron.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central Illinois.
&&
LAT...LON 4243 8823 4207 8825 4207 8826 4200 8826
4185 8861 4219 8870 4249 8890 4250 8828
TIME...MOT...LOC 0219Z 235DEG 48KT 4251 8880 4224 8862 4194 8855
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
https://wxn.io/zugh6
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 031955
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
255 PM CDT Tue Jun 3 2025
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-
255 PM CDT Tue Jun 3 2025 /355 PM EDT Tue Jun 3 2025/
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.
High Swim Risk Lake Michigan Beaches north of Evanston.
DISCUSSION...
Thunderstorms are possible across northwest Illinois along and
west of the Interstate 39 corridor this evening. These storms may
produce strong to severe wind gusts before weakening by the late
evening.
High waves will lead to dangerous swimming conditions at Lake
Michigan beaches north of Evanston through this evening.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of Interstate 80.
Thursday Night and Friday...
Limited Thunderstorm Risk, mainly south of Interstate 80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening, especially across northwest
Illinois and the Rockford area.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 40 to 50 mph.
https://wxn.io/41pw3
FLUS43 KLOT 031955
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
255 PM CDT Tue Jun 3 2025
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-
255 PM CDT Tue Jun 3 2025 /355 PM EDT Tue Jun 3 2025/
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.
High Swim Risk Lake Michigan Beaches north of Evanston.
DISCUSSION...
Thunderstorms are possible across northwest Illinois along and
west of the Interstate 39 corridor this evening. These storms may
produce strong to severe wind gusts before weakening by the late
evening.
High waves will lead to dangerous swimming conditions at Lake
Michigan beaches north of Evanston through this evening.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of Interstate 80.
Thursday Night and Friday...
Limited Thunderstorm Risk, mainly south of Interstate 80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening, especially across northwest
Illinois and the Rockford area.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 40 to 50 mph.
https://wxn.io/41pw3
Severe Thunderstorm Warning Expiration for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 031859
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
159 PM CDT Tue Jun 3 2025
/O.EXP.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
159 PM CDT Tue Jun 3 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MCHENRY COUNTY
WILL EXPIRE AT 200 PM CDT...
The portion of the storm which prompted the warning have moved out
of the area. Therefore, the warning will be allowed to expire.
However, gusty winds are still possible with these thunderstorms.
&&
LAT...LON 4224 8852 4250 8856 4250 8842 4249 8820
4230 8820
TIME...MOT...LOC 1858Z 255DEG 43KT 4255 8818 4235 8815
https://wxn.io/1rwvh
WWUS53 KLOT 031859
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
159 PM CDT Tue Jun 3 2025
/O.EXP.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
159 PM CDT Tue Jun 3 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MCHENRY COUNTY
WILL EXPIRE AT 200 PM CDT...
The portion of the storm which prompted the warning have moved out
of the area. Therefore, the warning will be allowed to expire.
However, gusty winds are still possible with these thunderstorms.
&&
LAT...LON 4224 8852 4250 8856 4250 8842 4249 8820
4230 8820
TIME...MOT...LOC 1858Z 255DEG 43KT 4255 8818 4235 8815
https://wxn.io/1rwvh
Severe Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 031842
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
142 PM CDT Tue Jun 3 2025
/O.CON.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
142 PM CDT Tue Jun 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR NORTHEASTERN MCHENRY COUNTY...
At 139 PM CDT, severe thunderstorms were located along a line
extending from near Hebron to Woodstock, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Broadcast media reported downed trees on powerlines 2 miles
south of Harvard around 130 CDT.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Hebron, McHenry, Lakemoor, Bull Valley, Johnsburg, Ringwood,
Richmond, Pistakee Highlands, Ridgefield, Holiday Hills, Prairie
Grove, Fox Lake, Genoa City, Island Lake, and Crystal Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4224 8852 4250 8856 4250 8842 4249 8820
4230 8820
TIME...MOT...LOC 1839Z 255DEG 41KT 4250 8846 4230 8843
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
https://wxn.io/yoi41
WWUS53 KLOT 031842
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
142 PM CDT Tue Jun 3 2025
/O.CON.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
142 PM CDT Tue Jun 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR NORTHEASTERN MCHENRY COUNTY...
At 139 PM CDT, severe thunderstorms were located along a line
extending from near Hebron to Woodstock, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Broadcast media reported downed trees on powerlines 2 miles
south of Harvard around 130 CDT.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Hebron, McHenry, Lakemoor, Bull Valley, Johnsburg, Ringwood,
Richmond, Pistakee Highlands, Ridgefield, Holiday Hills, Prairie
Grove, Fox Lake, Genoa City, Island Lake, and Crystal Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4224 8852 4250 8856 4250 8842 4249 8820
4230 8820
TIME...MOT...LOC 1839Z 255DEG 41KT 4250 8846 4230 8843
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
https://wxn.io/yoi41
Severe Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS53 KLOT 031826
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
126 PM CDT Tue Jun 3 2025
/O.CON.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
126 PM CDT Tue Jun 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR MCHENRY COUNTY...
At 124 PM CDT, severe thunderstorms were located along a line
extending from near Sharon to near Marengo, moving northeast at 45
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Harvard, Marengo, Hebron, McHenry, Lakemoor, Bull Valley, Johnsburg,
Ringwood, Chemung, Richmond, Pistakee Highlands, Ridgefield, Holiday
Hills, Union, Prairie Grove, Fox Lake, Genoa City, and Island Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4230 8820 4221 8870 4249 8871 4250 8842
4249 8820
TIME...MOT...LOC 1824Z 256DEG 40KT 4245 8873 4225 8870
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/mtzct
WWUS53 KLOT 031826
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
126 PM CDT Tue Jun 3 2025
/O.CON.KLOT.SV.W.0047.000000T0000Z-250603T1900Z/
McHenry IL-
126 PM CDT Tue Jun 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR MCHENRY COUNTY...
At 124 PM CDT, severe thunderstorms were located along a line
extending from near Sharon to near Marengo, moving northeast at 45
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Harvard, Marengo, Hebron, McHenry, Lakemoor, Bull Valley, Johnsburg,
Ringwood, Chemung, Richmond, Pistakee Highlands, Ridgefield, Holiday
Hills, Union, Prairie Grove, Fox Lake, Genoa City, and Island Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4230 8820 4221 8870 4249 8871 4250 8842
4249 8820
TIME...MOT...LOC 1824Z 256DEG 40KT 4245 8873 4225 8870
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/mtzct
Severe Thunderstorm Warning for McHenry Co., IL until 2:00 PM CDT 6/3
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WUUS53 KLOT 031810
SVRLOT
/O.NEW.KLOT.SV.W.0047.250603T1810Z-250603T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville
110 PM CDT Tue Jun 3 2025
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for...
McHenry County in northeastern Illinois...
* Until 200 PM CDT.
* At 110 PM CDT, severe thunderstorms were located along a line
extending from near Roscoe to near Belvidere, moving east at 50
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Harvard, Marengo, Hebron, McHenry, Lakemoor, Bull Valley,
Johnsburg, Ringwood, Chemung, Richmond, Pistakee Highlands,
Ridgefield, Holiday Hills, Union, Prairie Grove, Fox Lake, Genoa
City, and Island Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4230 8820 4221 8870 4249 8871 4250 8842
4249 8820
TIME...MOT...LOC 1810Z 255DEG 43KT 4245 8897 4221 8889
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/uwkhq
WUUS53 KLOT 031810
SVRLOT
/O.NEW.KLOT.SV.W.0047.250603T1810Z-250603T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Chicago/Romeoville
110 PM CDT Tue Jun 3 2025
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for...
McHenry County in northeastern Illinois...
* Until 200 PM CDT.
* At 110 PM CDT, severe thunderstorms were located along a line
extending from near Roscoe to near Belvidere, moving east at 50
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Greenwood, Wonder Lake, Spring Grove, McCullom Lake, Woodstock,
Harvard, Marengo, Hebron, McHenry, Lakemoor, Bull Valley,
Johnsburg, Ringwood, Chemung, Richmond, Pistakee Highlands,
Ridgefield, Holiday Hills, Union, Prairie Grove, Fox Lake, Genoa
City, and Island Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4230 8820 4221 8870 4249 8871 4250 8842
4249 8820
TIME...MOT...LOC 1810Z 255DEG 43KT 4245 8897 4221 8889
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
https://wxn.io/uwkhq
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 031733
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1233 PM CDT Tue Jun 3 2025
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-
1233 PM CDT Tue Jun 3 2025 /133 PM EDT Tue Jun 3 2025/
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...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
DISCUSSION...
A few thunderstorms are expected this afternoon and evening
northwest of I-55. Storms this evening could be strong to
severe, especially near and west of the I-39 corridor, with
strong wind gusts as the primary hazard.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of I-80.
Thursday night and Friday...
Limited Thunderstorm Risk, mainly south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected to be needed.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 40-45 mph.
https://wxn.io/248zt
FLUS43 KLOT 031733
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1233 PM CDT Tue Jun 3 2025
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-
1233 PM CDT Tue Jun 3 2025 /133 PM EDT Tue Jun 3 2025/
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...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
DISCUSSION...
A few thunderstorms are expected this afternoon and evening
northwest of I-55. Storms this evening could be strong to
severe, especially near and west of the I-39 corridor, with
strong wind gusts as the primary hazard.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of I-80.
Thursday night and Friday...
Limited Thunderstorm Risk, mainly south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected to be needed.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 40-45 mph.
https://wxn.io/248zt
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 030859
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
359 AM CDT Tue Jun 3 2025
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-
359 AM CDT Tue Jun 3 2025 /459 AM EDT Tue Jun 3 2025/
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.
DISCUSSION...
A few thunderstorms are expected this evening, mainly across
northwest Illinois. There is a slight chance of a strong to severe
thunderstorm or two with locally strong wind gusts early this
evening, mainly west of I-39.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of I-80.
Thursday night and Friday...
Limited Thunderstorm Risk, mainly south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected to be needed.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 35 mph.
https://wxn.io/lewdd
FLUS43 KLOT 030859
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
359 AM CDT Tue Jun 3 2025
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-
359 AM CDT Tue Jun 3 2025 /459 AM EDT Tue Jun 3 2025/
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.
DISCUSSION...
A few thunderstorms are expected this evening, mainly across
northwest Illinois. There is a slight chance of a strong to severe
thunderstorm or two with locally strong wind gusts early this
evening, mainly west of I-39.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk, mainly south of I-80.
Thursday night and Friday...
Limited Thunderstorm Risk, mainly south of I-80.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected to be needed.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 35 mph.
https://wxn.io/lewdd
Monday, June 2, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 022050
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
350 PM CDT Mon Jun 2 2025
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-
350 PM CDT Mon Jun 2 2025 /450 PM EDT Mon Jun 2 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A weather system will bring chances for showers and thunderstorms
Tuesday afternoon through Friday. A few stronger storms may
develop Tuesday afternoon and evening mainly near and west of I-39
with strong to damaging winds as the main threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/5c2bi
FLUS43 KLOT 022050
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
350 PM CDT Mon Jun 2 2025
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-
350 PM CDT Mon Jun 2 2025 /450 PM EDT Mon Jun 2 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
DISCUSSION...
A weather system will bring chances for showers and thunderstorms
Tuesday afternoon through Friday. A few stronger storms may
develop Tuesday afternoon and evening mainly near and west of I-39
with strong to damaging winds as the main threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/5c2bi
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 020915
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
415 AM CDT Mon Jun 2 2025
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-
415 AM CDT Mon Jun 2 2025 /515 AM EDT Mon Jun 2 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk, especially south of I-80.
Friday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/s0qc4
FLUS43 KLOT 020915
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
415 AM CDT Mon Jun 2 2025
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-
415 AM CDT Mon Jun 2 2025 /515 AM EDT Mon Jun 2 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk, especially south of I-80.
Friday and Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/s0qc4
Sunday, June 1, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 011944
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
244 PM CDT Sun Jun 1 2025
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-
244 PM CDT Sun Jun 1 2025 /344 PM EDT Sun Jun 1 2025/
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.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/dc5xf
FLUS43 KLOT 011944
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
244 PM CDT Sun Jun 1 2025
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-
244 PM CDT Sun Jun 1 2025 /344 PM EDT Sun Jun 1 2025/
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.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/dc5xf
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 010922
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
422 AM CDT Sun Jun 1 2025
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-
422 AM CDT Sun Jun 1 2025 /522 AM EDT Sun Jun 1 2025/
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...Monday through Saturday.
Tuesday night...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wsu49
FLUS43 KLOT 010922
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
422 AM CDT Sun Jun 1 2025
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-
422 AM CDT Sun Jun 1 2025 /522 AM EDT Sun Jun 1 2025/
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...Monday through Saturday.
Tuesday night...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wsu49
Saturday, May 31, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 312000
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
300 PM CDT Sat May 31 2025
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-
300 PM CDT Sat May 31 2025 /400 PM EDT Sat May 31 2025/
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.
Tuesday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wwe47
FLUS43 KLOT 312000
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
300 PM CDT Sat May 31 2025
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-
300 PM CDT Sat May 31 2025 /400 PM EDT Sat May 31 2025/
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.
Tuesday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wwe47
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 310910
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
410 AM CDT Sat May 31 2025
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-
410 AM CDT Sat May 31 2025 /510 AM EDT Sat May 31 2025/
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.
Tuesday through Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4it04
FLUS43 KLOT 310910
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
410 AM CDT Sat May 31 2025
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-
410 AM CDT Sat May 31 2025 /510 AM EDT Sat May 31 2025/
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.
Tuesday through Thursday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4it04
Friday, May 30, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 310243
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
943 PM CDT Fri May 30 2025
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-
943 PM CDT Fri May 30 2025 /1043 PM EDT Fri May 30 2025/
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 late in the evening.
DISCUSSION...
Isolated thunderstorms are possible near Lake Michigan late this
evening with lightning strikes and locally gusty winds being the
main hazards through midnight CDT.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 45 mph.
https://wxn.io/kge4a
FLUS43 KLOT 310243
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
943 PM CDT Fri May 30 2025
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-
943 PM CDT Fri May 30 2025 /1043 PM EDT Fri May 30 2025/
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 late in the evening.
DISCUSSION...
Isolated thunderstorms are possible near Lake Michigan late this
evening with lightning strikes and locally gusty winds being the
main hazards through midnight CDT.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 45 mph.
https://wxn.io/kge4a
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 302010
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
310 PM CDT Fri May 30 2025
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-
310 PM CDT Fri May 30 2025 /410 PM EDT Fri May 30 2025/
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 quarter size.
DISCUSSION...
Isolated to widely scattered thunderstorms are possible this
evening, mainly around the Chicago metro area. A couple of
thunderstorms may produce marginally damaging winds and small
hail.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 40 mph.
https://wxn.io/hy9xi
FLUS43 KLOT 302010
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
310 PM CDT Fri May 30 2025
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-
310 PM CDT Fri May 30 2025 /410 PM EDT Fri May 30 2025/
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 quarter size.
DISCUSSION...
Isolated to widely scattered thunderstorms are possible this
evening, mainly around the Chicago metro area. A couple of
thunderstorms may produce marginally damaging winds and small
hail.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 40 mph.
https://wxn.io/hy9xi
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 300849
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
349 AM CDT Fri May 30 2025
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-
349 AM CDT Fri May 30 2025 /449 AM EDT Fri May 30 2025/
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 are expected to develop across northeast
Illinois and northwest Indiana late this afternoon and early
evening, with the strongest storms capable to producing hail and
locally damaging winds.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 40 mph.
https://wxn.io/y5gro
FLUS43 KLOT 300849
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
349 AM CDT Fri May 30 2025
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-
349 AM CDT Fri May 30 2025 /449 AM EDT Fri May 30 2025/
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 are expected to develop across northeast
Illinois and northwest Indiana late this afternoon and early
evening, with the strongest storms capable to producing hail and
locally damaging winds.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 40 mph.
https://wxn.io/y5gro
Thursday, May 29, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 291947
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 PM CDT Thu May 29 2025
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-
247 PM CDT Thu May 29 2025 /347 PM EDT Thu May 29 2025/
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...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
DISCUSSION...
Scattered thunderstorms are possible mainly east of Interstate 39
in the late afternoon and evening hours of Friday. In addition to
lightning, damaging wind gusts in excess of 60 mph are possible
with the strongest storms.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/8xwbo
FLUS43 KLOT 291947
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 PM CDT Thu May 29 2025
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-
247 PM CDT Thu May 29 2025 /347 PM EDT Thu May 29 2025/
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...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
DISCUSSION...
Scattered thunderstorms are possible mainly east of Interstate 39
in the late afternoon and evening hours of Friday. In addition to
lightning, damaging wind gusts in excess of 60 mph are possible
with the strongest storms.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/8xwbo
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 291405
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
905 AM CDT Thu May 29 2025
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-
905 AM CDT Thu May 29 2025 /1005 AM EDT Thu May 29 2025/
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...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION...
Gusty thunderstorms may move across the area east of Interstate
39 in the late afternoon and evening hours.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/46euf
FLUS43 KLOT 291405
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
905 AM CDT Thu May 29 2025
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-
905 AM CDT Thu May 29 2025 /1005 AM EDT Thu May 29 2025/
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...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION...
Gusty thunderstorms may move across the area east of Interstate
39 in the late afternoon and evening hours.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/46euf
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 290755
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
255 AM CDT Thu May 29 2025
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-
255 AM CDT Thu May 29 2025 /355 AM EDT Thu May 29 2025/
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 Fog Risk through sunrise.
DISCUSSION...
Patchy dense fog will continue through just after sunrise,
especially near and south of Interstate 80.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION:
Gusty thunderstorms may move across the area east of Interstate
39 in the late afternoon and evening hours.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4geio
FLUS43 KLOT 290755
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
255 AM CDT Thu May 29 2025
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-
255 AM CDT Thu May 29 2025 /355 AM EDT Thu May 29 2025/
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 Fog Risk through sunrise.
DISCUSSION...
Patchy dense fog will continue through just after sunrise,
especially near and south of Interstate 80.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION:
Gusty thunderstorms may move across the area east of Interstate
39 in the late afternoon and evening hours.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4geio
Wednesday, May 28, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 290247
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
947 PM CDT Wed May 28 2025
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-
947 PM CDT Wed May 28 2025 /1047 PM EDT Wed May 28 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Fog Risk.
DISCUSSION...
Areas of fog will develop after midnight and persist through early
Thursday morning especially for areas south of I-80. Locally dense
fog with visibility under 1 mile possible.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/2b7y4
FLUS43 KLOT 290247
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
947 PM CDT Wed May 28 2025
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-
947 PM CDT Wed May 28 2025 /1047 PM EDT Wed May 28 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Fog Risk.
DISCUSSION...
Areas of fog will develop after midnight and persist through early
Thursday morning especially for areas south of I-80. Locally dense
fog with visibility under 1 mile possible.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/2b7y4
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 281922
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
222 PM CDT Wed May 28 2025
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-
222 PM CDT Wed May 28 2025 /322 PM EDT Wed May 28 2025/
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.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/3l5wd
FLUS43 KLOT 281922
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
222 PM CDT Wed May 28 2025
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-
222 PM CDT Wed May 28 2025 /322 PM EDT Wed May 28 2025/
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.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/3l5wd
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 280814
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
314 AM CDT Wed May 28 2025
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-
314 AM CDT Wed May 28 2025 /414 AM EDT Wed May 28 2025/
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...Thursday through Tuesday.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/h86nk
FLUS43 KLOT 280814
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
314 AM CDT Wed May 28 2025
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-
314 AM CDT Wed May 28 2025 /414 AM EDT Wed May 28 2025/
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...Thursday through Tuesday.
Friday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/h86nk
Tuesday, May 27, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 272002
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
302 PM CDT Tue May 27 2025
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-
302 PM CDT Tue May 27 2025 /402 PM EDT Tue May 27 2025/
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...Wednesday through Monday.
Friday Evening...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/ti2jv
FLUS43 KLOT 272002
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
302 PM CDT Tue May 27 2025
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-
302 PM CDT Tue May 27 2025 /402 PM EDT Tue May 27 2025/
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...Wednesday through Monday.
Friday Evening...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/ti2jv
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 270808
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 AM CDT Tue May 27 2025
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-
308 AM CDT Tue May 27 2025 /408 AM EDT Tue May 27 2025/
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...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/uc94q
FLUS43 KLOT 270808
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 AM CDT Tue May 27 2025
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-
308 AM CDT Tue May 27 2025 /408 AM EDT Tue May 27 2025/
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...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/uc94q
Monday, May 26, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 261956
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
256 PM CDT Mon May 26 2025
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-
256 PM CDT Mon May 26 2025 /356 PM EDT Mon May 26 2025/
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...Tuesday through Sunday.
Wednesday...
Limited Thunderstorm Risk near and west of I-39.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/3drpw
FLUS43 KLOT 261956
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
256 PM CDT Mon May 26 2025
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-
256 PM CDT Mon May 26 2025 /356 PM EDT Mon May 26 2025/
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...Tuesday through Sunday.
Wednesday...
Limited Thunderstorm Risk near and west of I-39.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/3drpw
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 260747
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 AM CDT Mon May 26 2025
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-
247 AM CDT Mon May 26 2025 /347 AM EDT Mon May 26 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wk1z5
FLUS43 KLOT 260747
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
247 AM CDT Mon May 26 2025
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-
247 AM CDT Mon May 26 2025 /347 AM EDT Mon May 26 2025/
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...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/wk1z5
Sunday, May 25, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 252025
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 PM CDT Sun May 25 2025
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-
325 PM CDT Sun May 25 2025 /425 PM EDT Sun May 25 2025/
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.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/jx1tr
FLUS43 KLOT 252025
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 PM CDT Sun May 25 2025
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-
325 PM CDT Sun May 25 2025 /425 PM EDT Sun May 25 2025/
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.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/jx1tr
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 251604
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1104 AM CDT Sun May 25 2025
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-
1104 AM CDT Sun May 25 2025 /1204 PM EDT Sun May 25 2025/
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.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/9oa1c
FLUS43 KLOT 251604
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1104 AM CDT Sun May 25 2025
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-
1104 AM CDT Sun May 25 2025 /1204 PM EDT Sun May 25 2025/
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.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/9oa1c
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 250806
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
306 AM CDT Sun May 25 2025
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-
306 AM CDT Sun May 25 2025 /406 AM EDT Sun May 25 2025/
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...Monday through Saturday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/ajrml
FLUS43 KLOT 250806
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
306 AM CDT Sun May 25 2025
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-
306 AM CDT Sun May 25 2025 /406 AM EDT Sun May 25 2025/
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...Monday through Saturday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/ajrml
Saturday, May 24, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 241924
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
224 PM CDT Sat May 24 2025
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-
224 PM CDT Sat May 24 2025 /324 PM EDT Sat May 24 2025/
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.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/0j64j
FLUS43 KLOT 241924
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
224 PM CDT Sat May 24 2025
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-
224 PM CDT Sat May 24 2025 /324 PM EDT Sat May 24 2025/
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.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/0j64j
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 240819
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
319 AM CDT Sat May 24 2025
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-
319 AM CDT Sat May 24 2025 /419 AM EDT Sat May 24 2025/
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.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/blyjk
FLUS43 KLOT 240819
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
319 AM CDT Sat May 24 2025
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-
319 AM CDT Sat May 24 2025 /419 AM EDT Sat May 24 2025/
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.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/blyjk
Friday, May 23, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 231926
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
226 PM CDT Fri May 23 2025
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-
226 PM CDT Fri May 23 2025 /326 PM EDT Fri May 23 2025/
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...Saturday through Thursday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/tj0zt
FLUS43 KLOT 231926
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
226 PM CDT Fri May 23 2025
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-
226 PM CDT Fri May 23 2025 /326 PM EDT Fri May 23 2025/
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...Saturday through Thursday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/tj0zt
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 230819
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
319 AM CDT Fri May 23 2025
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-
319 AM CDT Fri May 23 2025 /419 AM EDT Fri May 23 2025/
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...Saturday through Thursday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/jy1wf
FLUS43 KLOT 230819
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
319 AM CDT Fri May 23 2025
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-
319 AM CDT Fri May 23 2025 /419 AM EDT Fri May 23 2025/
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...Saturday through Thursday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/jy1wf
Thursday, May 22, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 230208
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
908 PM CDT Thu May 22 2025
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-
908 PM CDT Thu May 22 2025 /1008 PM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk Indiana Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected late this evening at
Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/y5agd
FLUS43 KLOT 230208
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
908 PM CDT Thu May 22 2025
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-
908 PM CDT Thu May 22 2025 /1008 PM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk Indiana Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected late this evening at
Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/y5agd
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 222031
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
331 PM CDT Thu May 22 2025
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-
331 PM CDT Thu May 22 2025 /431 PM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk Lake Michigan Beaches this evening.
DISCUSSION...
Dangerous swimming conditions are expected through this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/66tps
FLUS43 KLOT 222031
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
331 PM CDT Thu May 22 2025
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-
331 PM CDT Thu May 22 2025 /431 PM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk Lake Michigan Beaches this evening.
DISCUSSION...
Dangerous swimming conditions are expected through this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/66tps
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 221617
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1117 AM CDT Thu May 22 2025
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-
1117 AM CDT Thu May 22 2025 /1217 PM EDT Thu May 22 2025/
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...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected through this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/gd4g9
FLUS43 KLOT 221617
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1117 AM CDT Thu May 22 2025
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-
1117 AM CDT Thu May 22 2025 /1217 PM EDT Thu May 22 2025/
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...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected through this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/gd4g9
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 220902
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
402 AM CDT Thu May 22 2025
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-
402 AM CDT Thu May 22 2025 /502 AM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected today and this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/glgam
FLUS43 KLOT 220902
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
402 AM CDT Thu May 22 2025
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-
402 AM CDT Thu May 22 2025 /502 AM EDT Thu May 22 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions are expected today and this evening,
particularly at Cook County, IL and Indiana Lake Michigan Beaches.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/glgam
Wednesday, May 21, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 212008
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 PM CDT Wed May 21 2025
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-
308 PM CDT Wed May 21 2025 /408 PM EDT Wed May 21 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk especially Indiana Lake Michigan Beaches.
DISCUSSION...
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Cook County, IL and Indiana Lake
Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/pra89
FLUS43 KLOT 212008
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
308 PM CDT Wed May 21 2025
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-
308 PM CDT Wed May 21 2025 /408 PM EDT Wed May 21 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk especially Indiana Lake Michigan Beaches.
DISCUSSION...
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Cook County, IL and Indiana Lake
Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/pra89
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 211608
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1108 AM CDT Wed May 21 2025
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-
1108 AM CDT Wed May 21 2025 /1208 PM EDT Wed May 21 2025/
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...
High Swim Risk particularly Indiana Lake Michigan Beaches
tonight.
DISCUSSION...
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk particularly Indiana Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Indiana Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/lobzs
FLUS43 KLOT 211608
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1108 AM CDT Wed May 21 2025
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-
1108 AM CDT Wed May 21 2025 /1208 PM EDT Wed May 21 2025/
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...
High Swim Risk particularly Indiana Lake Michigan Beaches
tonight.
DISCUSSION...
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk particularly Indiana Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Indiana Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/lobzs
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 210823
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
323 AM CDT Wed May 21 2025
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-
323 AM CDT Wed May 21 2025 /423 AM EDT Wed May 21 2025/
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 Fog Risk this morning.
High Swim Risk particularly Indiana Lake Michigan beaches
tonight.
DISCUSSION...
Areas of drizzle or fog may locally reduce visibilities to around
1 mile this morning.
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk particularly Indiana Lake Michigan beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Indiana Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/yiriy
FLUS43 KLOT 210823
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
323 AM CDT Wed May 21 2025
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-
323 AM CDT Wed May 21 2025 /423 AM EDT Wed May 21 2025/
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 Fog Risk this morning.
High Swim Risk particularly Indiana Lake Michigan beaches
tonight.
DISCUSSION...
Areas of drizzle or fog may locally reduce visibilities to around
1 mile this morning.
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk particularly Indiana Lake Michigan beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Indiana Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/yiriy
Tuesday, May 20, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 210008
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
708 PM CDT Tue May 20 2025
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-
708 PM CDT Tue May 20 2025 /808 PM EDT Tue May 20 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
https://wxn.io/g3o8y
FLUS43 KLOT 210008
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
708 PM CDT Tue May 20 2025
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-
708 PM CDT Tue May 20 2025 /808 PM EDT Tue May 20 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
No hazardous weather is expected at this time.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
https://wxn.io/g3o8y
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 202015
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
315 PM CDT Tue May 20 2025
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-
315 PM CDT Tue May 20 2025 /415 PM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Scattered thunderstorms will move across the area late this
afternoon into early this evening. A few storms could become
severe, mainly near and south of a La Salle to Rensselaer line.
All severe hazards, including a few tornadoes, are possible,
though the primary severe threats are expected to be localized
damaging wind gusts and isolated large hail up to the size of
quarters.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north-northeast at around 30 mph.
https://wxn.io/n815v
FLUS43 KLOT 202015
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
315 PM CDT Tue May 20 2025
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-
315 PM CDT Tue May 20 2025 /415 PM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Scattered thunderstorms will move across the area late this
afternoon into early this evening. A few storms could become
severe, mainly near and south of a La Salle to Rensselaer line.
All severe hazards, including a few tornadoes, are possible,
though the primary severe threats are expected to be localized
damaging wind gusts and isolated large hail up to the size of
quarters.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north-northeast at around 30 mph.
https://wxn.io/n815v
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 201640
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1140 AM CDT Tue May 20 2025
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-
1140 AM CDT Tue May 20 2025 /1240 PM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 70 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Showers and thunderstorms are expected to redevelop this
afternoon. A few storms could become severe, primarily near and
south of a La Salle to Rensselaer line. All severe hazards,
including a few tornadoes are possible, though the primary severe
threats are expected to be localized damaging wind gusts and
isolated large hail up to the size of quarters.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/2vlry
FLUS43 KLOT 201640
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1140 AM CDT Tue May 20 2025
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-
1140 AM CDT Tue May 20 2025 /1240 PM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 70 mph.
Level 2 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Showers and thunderstorms are expected to redevelop this
afternoon. A few storms could become severe, primarily near and
south of a La Salle to Rensselaer line. All severe hazards,
including a few tornadoes are possible, though the primary severe
threats are expected to be localized damaging wind gusts and
isolated large hail up to the size of quarters.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/2vlry
Special Weather Statement for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS83 KLOT 201028
SPSLOT
Special Weather Statement
National Weather Service Chicago/Romeoville IL
528 AM CDT Tue May 20 2025
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Livingston-Ford-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Rochelle, Oregon, Byron, Dixon,
DeKalb, Sycamore, Aurora, Elgin, Ottawa, Streator, La Salle,
Mendota, Marseilles, Oswego, Yorkville, Plano, Morris, Coal City,
Minooka, Pontiac, Dwight, Fairbury, Paxton, and Gibson City
528 AM CDT Tue May 20 2025
...STRONG AND GUSTY WINDS THIS MORNING...
Strong east to southeast winds with gusts around 45 mph will
through mid morning along the southwest edge of a region of
precipitation. These strong winds may cause difficult driving
conditions for high profile vehicles, particularly on north to
south oriented roads.
https://wxn.io/afgu9
WWUS83 KLOT 201028
SPSLOT
Special Weather Statement
National Weather Service Chicago/Romeoville IL
528 AM CDT Tue May 20 2025
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Livingston-Ford-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Rochelle, Oregon, Byron, Dixon,
DeKalb, Sycamore, Aurora, Elgin, Ottawa, Streator, La Salle,
Mendota, Marseilles, Oswego, Yorkville, Plano, Morris, Coal City,
Minooka, Pontiac, Dwight, Fairbury, Paxton, and Gibson City
528 AM CDT Tue May 20 2025
...STRONG AND GUSTY WINDS THIS MORNING...
Strong east to southeast winds with gusts around 45 mph will
through mid morning along the southwest edge of a region of
precipitation. These strong winds may cause difficult driving
conditions for high profile vehicles, particularly on north to
south oriented roads.
https://wxn.io/afgu9
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 200825
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 AM CDT Tue May 20 2025
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-
325 AM CDT Tue May 20 2025 /425 AM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 70 mph.
Level 2 of 5 Large Hail Risk...up to ping pong ball size.
Limited Flooding Risk.
DISCUSSION...
Rain and embedded thunderstorms will move across the region this
morning, some with locally heavy rainfall.
Strong and gusty easterly winds may gust to around 45 mph this
morning.
Showers and thunderstorms are expected to redevelop this
afternoon. A few storms could become severe, primarily near and
south of a La Salle to Rensselaer line. All severe hazards,
including a few tornadoes, are possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/jppu4
FLUS43 KLOT 200825
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 AM CDT Tue May 20 2025
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-
325 AM CDT Tue May 20 2025 /425 AM EDT Tue May 20 2025/
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 Tornado Risk.
Level 2 of 5 Damaging Wind Risk...up to 70 mph.
Level 2 of 5 Large Hail Risk...up to ping pong ball size.
Limited Flooding Risk.
DISCUSSION...
Rain and embedded thunderstorms will move across the region this
morning, some with locally heavy rainfall.
Strong and gusty easterly winds may gust to around 45 mph this
morning.
Showers and thunderstorms are expected to redevelop this
afternoon. A few storms could become severe, primarily near and
south of a La Salle to Rensselaer line. All severe hazards,
including a few tornadoes, are possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon and early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 30 mph.
https://wxn.io/jppu4
Monday, May 19, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 200151
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
851 PM CDT Mon May 19 2025
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-
851 PM CDT Mon May 19 2025 /951 PM EDT Mon May 19 2025/
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 mainly late tonight.
DISCUSSION...
Rain will spread over the area overnight and continue tomorrow
morning. A few non severe thunderstorms may occur overnight.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Showers and thunderstorms are expected to redevelop Tuesday
afternoon. A few storms may become severe, mainly south of a line
from La Salle, Illinois to Rensselaer, Indiana.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/n7bhc
FLUS43 KLOT 200151
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
851 PM CDT Mon May 19 2025
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-
851 PM CDT Mon May 19 2025 /951 PM EDT Mon May 19 2025/
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 mainly late tonight.
DISCUSSION...
Rain will spread over the area overnight and continue tomorrow
morning. A few non severe thunderstorms may occur overnight.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Showers and thunderstorms are expected to redevelop Tuesday
afternoon. A few storms may become severe, mainly south of a line
from La Salle, Illinois to Rensselaer, Indiana.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/n7bhc
Public Severe Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WOUS40 KWNS 200140
PWOSPC
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0840 PM CDT MON MAY 19 2025
...Severe thunderstorms expected over parts of the southern Plains
into the Ozarks and mid Mississippi Valley this evening and
overnight...
* LOCATIONS...
Western and Northern Arkansas
Missouri
Far Eastern Oklahoma
North-Central and Northeast Texas
Southern Illinois
* HAZARDS...
Widespread damaging winds, some hurricane force
Several tornadoes, a few intense
Scattered large hail, some baseball size
* SUMMARY...
A significant severe weather episode should continue tonight
across parts of the South-Central States. Strong tornadoes,
scattered to widespread damaging wind swaths, and very large
hail remain possible.
Preparedness actions...
Tornadoes at night can be particularly dangerous because they
are usually fast-moving and difficult to see. Stay tuned to
NOAA Weather Radio, weather.gov, or other media for watches and
warnings. A tornado watch means that conditions are favorable
for tornadoes to form during the next several hours. If a tornado
warning is issued for your area, move to a place of safety,
ideally in a basement or interior room on the lowest floor of a
sturdy building.
&&
..Gleason.. 05/20/2025
https://wxn.io/tt1yf
WOUS40 KWNS 200140
PWOSPC
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0840 PM CDT MON MAY 19 2025
...Severe thunderstorms expected over parts of the southern Plains
into the Ozarks and mid Mississippi Valley this evening and
overnight...
* LOCATIONS...
Western and Northern Arkansas
Missouri
Far Eastern Oklahoma
North-Central and Northeast Texas
Southern Illinois
* HAZARDS...
Widespread damaging winds, some hurricane force
Several tornadoes, a few intense
Scattered large hail, some baseball size
* SUMMARY...
A significant severe weather episode should continue tonight
across parts of the South-Central States. Strong tornadoes,
scattered to widespread damaging wind swaths, and very large
hail remain possible.
Preparedness actions...
Tornadoes at night can be particularly dangerous because they
are usually fast-moving and difficult to see. Stay tuned to
NOAA Weather Radio, weather.gov, or other media for watches and
warnings. A tornado watch means that conditions are favorable
for tornadoes to form during the next several hours. If a tornado
warning is issued for your area, move to a place of safety,
ideally in a basement or interior room on the lowest floor of a
sturdy building.
&&
..Gleason.. 05/20/2025
https://wxn.io/tt1yf
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 191958
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
258 PM CDT Mon May 19 2025
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-
258 PM CDT Mon May 19 2025 /358 PM EDT Mon May 19 2025/
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 late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
still some uncertainty regarding storm development and coverage
at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north at around 35 mph.
https://wxn.io/drahr
FLUS43 KLOT 191958
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
258 PM CDT Mon May 19 2025
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-
258 PM CDT Mon May 19 2025 /358 PM EDT Mon May 19 2025/
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 late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
still some uncertainty regarding storm development and coverage
at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north at around 35 mph.
https://wxn.io/drahr
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 191557
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1057 AM CDT Mon May 19 2025
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-
1057 AM CDT Mon May 19 2025 /1157 AM EDT Mon May 19 2025/
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 mainly late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
uncertainty regarding storm development at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north at around 35 mph.
https://wxn.io/vbemp
FLUS43 KLOT 191557
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1057 AM CDT Mon May 19 2025
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-
1057 AM CDT Mon May 19 2025 /1157 AM EDT Mon May 19 2025/
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 mainly late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
uncertainty regarding storm development at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the north at around 35 mph.
https://wxn.io/vbemp
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 190833
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
333 AM CDT Mon May 19 2025
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-
333 AM CDT Mon May 19 2025 /433 AM EDT Mon May 19 2025/
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 mainly late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
uncertainty regarding storm development at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION TONIGHT:
Moving toward the north around 35 mph.
https://wxn.io/dwri0
FLUS43 KLOT 190833
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
333 AM CDT Mon May 19 2025
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-
333 AM CDT Mon May 19 2025 /433 AM EDT Mon May 19 2025/
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 mainly late tonight.
Limited Flooding Risk late tonight.
DISCUSSION...
An area of rain and some embedded thunderstorms will develop late
tonight. Severe weather is not expected, but some storms could
produce locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk south of a La Salle to
Rensselaer line.
DISCUSSION...
Rain and a few thunderstorms with locally heavy rainfall will
continue on Tuesday.
A few strong to severe storms are possible Tuesday afternoon,
mainly south of a La Salle to Rensselaer line, although there is
uncertainty regarding storm development at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION TONIGHT:
Moving toward the north around 35 mph.
https://wxn.io/dwri0
Sunday, May 18, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 182009
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
309 PM CDT Sun May 18 2025
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-
309 PM CDT Sun May 18 2025 /409 PM EDT Sun May 18 2025/
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...
Limited Thunderstorm Risk late.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk...south of a Pontiac
to Rensselaer line.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/cr66m
FLUS43 KLOT 182009
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
309 PM CDT Sun May 18 2025
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-
309 PM CDT Sun May 18 2025 /409 PM EDT Sun May 18 2025/
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...
Limited Thunderstorm Risk late.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk...south of a Pontiac
to Rensselaer line.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/cr66m
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 180839
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
339 AM CDT Sun May 18 2025
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-
339 AM CDT Sun May 18 2025 /439 AM EDT Sun May 18 2025/
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...Monday through Saturday.
Monday Night...
Limited Thunderstorm Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk...south of a Pontiac
to Rensselaer line.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/hberg
FLUS43 KLOT 180839
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
339 AM CDT Sun May 18 2025
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-
339 AM CDT Sun May 18 2025 /439 AM EDT Sun May 18 2025/
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...Monday through Saturday.
Monday Night...
Limited Thunderstorm Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk...south of a Pontiac
to Rensselaer line.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/hberg
Saturday, May 17, 2025
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 172000
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
300 PM CDT Sat May 17 2025
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-
300 PM CDT Sat May 17 2025 /400 PM EDT Sat May 17 2025/
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.
Monday night and Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4ux25
FLUS43 KLOT 172000
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
300 PM CDT Sat May 17 2025
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-
300 PM CDT Sat May 17 2025 /400 PM EDT Sat May 17 2025/
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.
Monday night and Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/4ux25
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 170817
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
317 AM CDT Sat May 17 2025
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-
317 AM CDT Sat May 17 2025 /417 AM EDT Sat May 17 2025/
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.
Monday Night and Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/puklk
FLUS43 KLOT 170817
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
317 AM CDT Sat May 17 2025
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-
317 AM CDT Sat May 17 2025 /417 AM EDT Sat May 17 2025/
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.
Monday Night and Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/puklk
Friday, May 16, 2025
Wind Advisory Cancellation for McHenry Co., IL, Blowing Dust Advisory Expiration for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 170151
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
851 PM CDT Fri May 16 2025
/O.CAN.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
/O.EXP.KLOT.DU.Y.0001.000000T0000Z-250517T0200Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Will-Newton-
Jasper-Benton-
Including the cities of Oxford, Algonquin, Paxton, McHenry,
Woodstock, Sycamore, Elgin, Mendota, Marseilles, Oswego, Dwight,
Channahon, Oregon, Coal City, Fairbury, Kankakee, Plano,
Roselawn, Minooka, Crystal Lake, Fowler, Kentland, Yorkville,
Streator, Gibson City, Aurora, Byron, Ottawa, Rockford, DeKalb,
Pontiac, Rensselaer, La Salle, Morris, Dixon, Rochelle, Bradley,
Morocco, Manhattan, Belvidere, Wilmington, DeMotte, Gilman,
Bourbonnais, and Watseka
851 PM CDT Fri May 16 2025 /951 PM EDT Fri May 16 2025/
...WIND ADVISORY IS CANCELLED...
...BLOWING DUST ADVISORY WILL EXPIRE AT 9 PM CDT /10 PM EDT/ THIS
EVENING...
While west winds will remain breezy overnight, gusts should largely
remain below 45 mph from this point forward. So, the Wind Advisory
is being cancelled early.
Areas of blowing dust continue to ease as well, allowing the Blowing
Dust Advisory to expire at the scheduled expiration time.
https://wxn.io/i0mfb
WWUS73 KLOT 170151
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
851 PM CDT Fri May 16 2025
/O.CAN.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
/O.EXP.KLOT.DU.Y.0001.000000T0000Z-250517T0200Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Will-Newton-
Jasper-Benton-
Including the cities of Oxford, Algonquin, Paxton, McHenry,
Woodstock, Sycamore, Elgin, Mendota, Marseilles, Oswego, Dwight,
Channahon, Oregon, Coal City, Fairbury, Kankakee, Plano,
Roselawn, Minooka, Crystal Lake, Fowler, Kentland, Yorkville,
Streator, Gibson City, Aurora, Byron, Ottawa, Rockford, DeKalb,
Pontiac, Rensselaer, La Salle, Morris, Dixon, Rochelle, Bradley,
Morocco, Manhattan, Belvidere, Wilmington, DeMotte, Gilman,
Bourbonnais, and Watseka
851 PM CDT Fri May 16 2025 /951 PM EDT Fri May 16 2025/
...WIND ADVISORY IS CANCELLED...
...BLOWING DUST ADVISORY WILL EXPIRE AT 9 PM CDT /10 PM EDT/ THIS
EVENING...
While west winds will remain breezy overnight, gusts should largely
remain below 45 mph from this point forward. So, the Wind Advisory
is being cancelled early.
Areas of blowing dust continue to ease as well, allowing the Blowing
Dust Advisory to expire at the scheduled expiration time.
https://wxn.io/i0mfb
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 170138
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
838 PM CDT Fri May 16 2025
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-
838 PM CDT Fri May 16 2025 /938 PM EDT Fri May 16 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Non Thunderstorm Wind Risk.
DISCUSSION...
Breezy west winds gusting 35 to 45 mph will continue through the
evening.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
https://wxn.io/hd6f4
FLUS43 KLOT 170138
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
838 PM CDT Fri May 16 2025
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-
838 PM CDT Fri May 16 2025 /938 PM EDT Fri May 16 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Non Thunderstorm Wind Risk.
DISCUSSION...
Breezy west winds gusting 35 to 45 mph will continue through the
evening.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated at this time.
https://wxn.io/hd6f4
Blowing Dust Advisory for McHenry Co., IL until 9:00 PM CDT 5/16, Wind Advisory for McHenry Co., IL until 12:00 AM CDT 5/17
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 162132
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
432 PM CDT Fri May 16 2025
/O.EXB.KLOT.DU.Y.0001.000000T0000Z-250517T0200Z/
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Southern Will-
Including the cities of Algonquin, McHenry, Woodstock, Sycamore,
Elgin, Mendota, Marseilles, Oswego, Channahon, Oregon, Coal City,
Plano, Minooka, Crystal Lake, Yorkville, Streator, Aurora, Byron,
Ottawa, Rockford, DeKalb, La Salle, Morris, Dixon, Rochelle,
Manhattan, Belvidere, and Wilmington
432 PM CDT Fri May 16 2025
...BLOWING DUST ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...For the Blowing Dust Advisory, localized visibility
reductions below 1 mile in open areas expected. For the Wind
Advisory, southwest winds 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Boone, De Kalb, La Salle, Lee, Ogle, Winnebago, Grundy,
Kane, Kendall, McHenry, and Southern Will Counties.
* WHEN...For the Blowing Dust Advisory, until 9 PM CDT this evening.
For the Wind Advisory, until midnight CDT tonight.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with respiratory problems should make preparations to stay
indoors. Be ready for a sudden drop in visibility. If you encounter
blowing dust or blowing sand on the roadway or see it approaching,
pull off the road as far as possible and put your vehicle in park.
Turn the lights all the way off and keep foot off the brake pedal.
Remember, 'Pull Aside, Stay Alive'.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/ar749
WWUS73 KLOT 162132
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
432 PM CDT Fri May 16 2025
/O.EXB.KLOT.DU.Y.0001.000000T0000Z-250517T0200Z/
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall-
Grundy-Southern Will-
Including the cities of Algonquin, McHenry, Woodstock, Sycamore,
Elgin, Mendota, Marseilles, Oswego, Channahon, Oregon, Coal City,
Plano, Minooka, Crystal Lake, Yorkville, Streator, Aurora, Byron,
Ottawa, Rockford, DeKalb, La Salle, Morris, Dixon, Rochelle,
Manhattan, Belvidere, and Wilmington
432 PM CDT Fri May 16 2025
...BLOWING DUST ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...For the Blowing Dust Advisory, localized visibility
reductions below 1 mile in open areas expected. For the Wind
Advisory, southwest winds 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Boone, De Kalb, La Salle, Lee, Ogle, Winnebago, Grundy,
Kane, Kendall, McHenry, and Southern Will Counties.
* WHEN...For the Blowing Dust Advisory, until 9 PM CDT this evening.
For the Wind Advisory, until midnight CDT tonight.
* IMPACTS...Hazardous driving conditions due to reduced visibility.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with respiratory problems should make preparations to stay
indoors. Be ready for a sudden drop in visibility. If you encounter
blowing dust or blowing sand on the roadway or see it approaching,
pull off the road as far as possible and put your vehicle in park.
Turn the lights all the way off and keep foot off the brake pedal.
Remember, 'Pull Aside, Stay Alive'.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/ar749
Wind Advisory for McHenry Co., IL until 12:00 AM CDT 5/17
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 162052
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
352 PM CDT Fri May 16 2025
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Northern Cook-Central Cook-Southern Cook-
Northern Will-Southern Will-
Including the cities of Des Plaines, Algonquin, McHenry, Joliet,
Woodstock, Sycamore, Lemont, Plainfield, Elgin, Mendota, Carol
Stream, Marseilles, Oak Forest, Bolingbrook, Oswego, Gurnee, Oak
Park, Channahon, Oregon, Orland Park, Palatine, Naperville,
Waukegan, Coal City, Plano, Mundelein, Cicero, Minooka, Crystal
Lake, Evanston, Northbrook, Mokena, Oak Lawn, Yorkville,
Streator, Aurora, Chicago, Byron, Ottawa, Rockford, DeKalb,
Calumet City, La Salle, Wheaton, Park Forest, Morris, Dixon,
Rochelle, Schaumburg, Manhattan, Belvidere, Wilmington, Lombard,
Downers Grove, La Grange, and Buffalo Grove
352 PM CDT Fri May 16 2025
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 occurring.
* WHERE...Portions of north central and northeast Illinois.
* WHEN...Until midnight CDT tonight.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/z5ftn
WWUS73 KLOT 162052
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
352 PM CDT Fri May 16 2025
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Northern Cook-Central Cook-Southern Cook-
Northern Will-Southern Will-
Including the cities of Des Plaines, Algonquin, McHenry, Joliet,
Woodstock, Sycamore, Lemont, Plainfield, Elgin, Mendota, Carol
Stream, Marseilles, Oak Forest, Bolingbrook, Oswego, Gurnee, Oak
Park, Channahon, Oregon, Orland Park, Palatine, Naperville,
Waukegan, Coal City, Plano, Mundelein, Cicero, Minooka, Crystal
Lake, Evanston, Northbrook, Mokena, Oak Lawn, Yorkville,
Streator, Aurora, Chicago, Byron, Ottawa, Rockford, DeKalb,
Calumet City, La Salle, Wheaton, Park Forest, Morris, Dixon,
Rochelle, Schaumburg, Manhattan, Belvidere, Wilmington, Lombard,
Downers Grove, La Grange, and Buffalo Grove
352 PM CDT Fri May 16 2025
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 occurring.
* WHERE...Portions of north central and northeast Illinois.
* WHEN...Until midnight CDT tonight.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/z5ftn
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 162025
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 PM CDT Fri May 16 2025
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-
325 PM CDT Fri May 16 2025 /425 PM EDT Fri May 16 2025/
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 3 of 5 Damaging Wind Risk...up to 75 mph.
Level 2 of 5 Large Hail Risk...up to gold ball size.
Level 1 of 5 Tornado Risk.
Elevated Non Thunderstorm Wind Risk.
Extreme Fire Weather Risk.
DISCUSSION...
Scattered severe thunderstorms are expected late this afternoon
into early this evening. A few storms may become severe with large
hail and damaging winds, mainly for areas along and east of
Interstate 55 and especially toward east-central Illinois and
west-central Indiana.
South to southwest non-thunderstorm winds may gust as high as 50
mph through this evening. For rural locations where little to no
rain fell on Thursday, sharply reduced visibility is possible due
to blowing dust.
The strong winds combined with very dry air will create a
elevated critical fire danger with the potential for wildfires
and rapid fire spread this afternoon where little to no rain fell
on Thursday.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Monday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed through early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 50 mph.
https://wxn.io/sae96
FLUS43 KLOT 162025
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
325 PM CDT Fri May 16 2025
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-
325 PM CDT Fri May 16 2025 /425 PM EDT Fri May 16 2025/
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 3 of 5 Damaging Wind Risk...up to 75 mph.
Level 2 of 5 Large Hail Risk...up to gold ball size.
Level 1 of 5 Tornado Risk.
Elevated Non Thunderstorm Wind Risk.
Extreme Fire Weather Risk.
DISCUSSION...
Scattered severe thunderstorms are expected late this afternoon
into early this evening. A few storms may become severe with large
hail and damaging winds, mainly for areas along and east of
Interstate 55 and especially toward east-central Illinois and
west-central Indiana.
South to southwest non-thunderstorm winds may gust as high as 50
mph through this evening. For rural locations where little to no
rain fell on Thursday, sharply reduced visibility is possible due
to blowing dust.
The strong winds combined with very dry air will create a
elevated critical fire danger with the potential for wildfires
and rapid fire spread this afternoon where little to no rain fell
on Thursday.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Monday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed through early evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at around 50 mph.
https://wxn.io/sae96
Wind Advisory for McHenry Co., IL until 12:00 AM CDT 5/17
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
WWUS73 KLOT 162009
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
309 PM CDT Fri May 16 2025
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Livingston-Northern Cook-Central Cook-
Southern Cook-Northern Will-Southern Will-
Including the cities of Oak Park, La Salle, Carol Stream,
Belvidere, Wilmington, Channahon, Mokena, McHenry, Rockford,
Byron, Fairbury, Plainfield, Elgin, Park Forest, Yorkville,
Aurora, Woodstock, Orland Park, Evanston, Minooka, Des Plaines,
Gurnee, Algonquin, Waukegan, Mendota, Pontiac, Chicago,
Schaumburg, Lombard, Dwight, Crystal Lake, Northbrook, DeKalb,
Oak Lawn, Oak Forest, Bolingbrook, Naperville, Calumet City,
Cicero, Joliet, Sycamore, Downers Grove, Marseilles, Oswego,
Palatine, Manhattan, Oregon, Morris, Mundelein, Wheaton, Dixon,
Plano, Lemont, Ottawa, Buffalo Grove, Streator, Coal City, La
Grange, and Rochelle
309 PM CDT Fri May 16 2025
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...Until midnight CDT tonight.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/p2l1h
WWUS73 KLOT 162009
NPWLOT
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
309 PM CDT Fri May 16 2025
/O.CON.KLOT.WI.Y.0011.000000T0000Z-250517T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Livingston-Northern Cook-Central Cook-
Southern Cook-Northern Will-Southern Will-
Including the cities of Oak Park, La Salle, Carol Stream,
Belvidere, Wilmington, Channahon, Mokena, McHenry, Rockford,
Byron, Fairbury, Plainfield, Elgin, Park Forest, Yorkville,
Aurora, Woodstock, Orland Park, Evanston, Minooka, Des Plaines,
Gurnee, Algonquin, Waukegan, Mendota, Pontiac, Chicago,
Schaumburg, Lombard, Dwight, Crystal Lake, Northbrook, DeKalb,
Oak Lawn, Oak Forest, Bolingbrook, Naperville, Calumet City,
Cicero, Joliet, Sycamore, Downers Grove, Marseilles, Oswego,
Palatine, Manhattan, Oregon, Morris, Mundelein, Wheaton, Dixon,
Plano, Lemont, Ottawa, Buffalo Grove, Streator, Coal City, La
Grange, and Rochelle
309 PM CDT Fri May 16 2025
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...Until midnight CDT tonight.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
&&
https://wxn.io/p2l1h
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