C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 011902
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
202 PM CDT Fri Aug 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-
202 PM CDT Fri Aug 1 2025 /302 PM EDT Fri Aug 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...Saturday through Thursday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/0reyi
Friday, August 1, 2025
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 011853
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
153 PM CDT Fri Aug 1 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
153 PM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT SATURDAY NIGHT...
The Illinois Environmental Protection Agency has determined that the
"Air Pollution Action Day" designation will remain in effect for the
greater Chicago metropolitan area through Saturday night, August
2nd.
A Chicago area "Air Pollution Action Day" is declared when weather
conditions are such that widespread ozone and or particular levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the air quality index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/akbck
AEUS73 KLOT 011853
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
153 PM CDT Fri Aug 1 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
153 PM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT SATURDAY NIGHT...
The Illinois Environmental Protection Agency has determined that the
"Air Pollution Action Day" designation will remain in effect for the
greater Chicago metropolitan area through Saturday night, August
2nd.
A Chicago area "Air Pollution Action Day" is declared when weather
conditions are such that widespread ozone and or particular levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the air quality index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/akbck
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 011802
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
102 PM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
102 PM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/i3vuw
AEUS73 KLOT 011802
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
102 PM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
102 PM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area and is IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.
An Air Pollution Action Day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the Unhealthy for Sensitive Groups category of the
Air Quality Index for multiple days.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
https://wxn.io/i3vuw
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 011331
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
831 AM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
831 AM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for Friday August 1st for all of Illinois due
to wildfire smoke.
An Illinois "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 all or almost all of
Illinois.
USG - Active children and adults, especially people with pulmonary
or respiratory disease such as asthma, should limit prolonged outdoor
activity.
Unhealthy - Everyone should reduce prolonged activities or heavy
exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, AQI cautionary statements, current air quality, ...
https://wxn.io/mqt3o
AEUS73 KLOT 011331
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
831 AM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
831 AM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for Friday August 1st for all of Illinois due
to wildfire smoke.
An Illinois "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 all or almost all of
Illinois.
USG - Active children and adults, especially people with pulmonary
or respiratory disease such as asthma, should limit prolonged outdoor
activity.
Unhealthy - Everyone should reduce prolonged activities or heavy
exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, AQI cautionary statements, current air quality, ...
https://wxn.io/mqt3o
Hazardous Weather Outlook for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 010853
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
353 AM CDT Fri Aug 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-
353 AM CDT Fri Aug 1 2025 /453 AM EDT Fri Aug 1 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...
Breezy northeast winds will maintain choppy waves and rip
currents leading to a High Swim Risk along Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/p3j48
FLUS43 KLOT 010853
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
353 AM CDT Fri Aug 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-
353 AM CDT Fri Aug 1 2025 /453 AM EDT Fri Aug 1 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...
Breezy northeast winds will maintain choppy waves and rip
currents leading to a High Swim Risk along Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Tuesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
https://wxn.io/p3j48
Air Quality Alert for McHenry Co., IL
C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
AEUS73 KLOT 010503
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1203 AM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
1203 AM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for Friday August 1st for all of Illinois due
to wildfire smoke.
An Illinois "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 all or almost all of
Illinois.
USG - Active children and adults, especially people with pulmonary
or respiratory disease such as asthma, should limit prolonged outdoor
activity.
Unhealthy - Everyone should reduce prolonged activities or heavy
exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, AQI cautionary statements, current air quality,...
https://wxn.io/amkh6
AEUS73 KLOT 010503
AQALOT
Air Quality Alert Message
Relayed by National Weather Service Chicago IL
1203 AM CDT Fri Aug 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-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
1203 AM CDT Fri Aug 1 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for Friday August 1st for all of Illinois due
to wildfire smoke.
An Illinois "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 all or almost all of
Illinois.
USG - Active children and adults, especially people with pulmonary
or respiratory disease such as asthma, should limit prolonged outdoor
activity.
Unhealthy - Everyone should reduce prolonged activities or heavy
exertion outdoors.
Area residents are urged to reduce pollution levels. Air quality
forecasts, AQI cautionary statements, current air quality,...
https://wxn.io/amkh6
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