Air Quality Alert Message
Status
Issued ExpiredStart Time
Sun 07/19/2026 02:06 AM EDTEnd Time
Mon 07/20/2026 01:15 AM EDTImpacts
Informational
Full Alert Message
Air Quality Alert Message Relayed by National Weather Service Chicago IL 106 AM CDT Sun Jul 19 2026 ...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Illinois Environmental Protection Agency has issued an Areawide Air Pollution Action Day for today, July 19th for portions of Illinois. An Areawide Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate levels are forecasted to be at or above the Unhealthy for Sensitive Groups (USG) category in all or nearly all Illinois AQI forecast sectors. Areas both inside and outside of the Action Day coverage area may experience smoke/PM2.5 to a varying degree and duration today. Those with air quality concerns or anyone in Illinois with outdoor plans are encouraged to check current NowCast readings or sign up for EnviroFlash alerts on AirNow. gov. Before going outside, checking the NowCast AQI will help identify periods of both poor and cleaner air quality regardless of the level of the daily forecasted AQI. AQI Category Guidance Unhealthy for Sensitive Groups (USG) - Members of sensitive groups may experience health effects. The general public is less likely to be affected. Sensitive groups: Make outdoor activities shorter and less intense. It’s OK to be active outdoors, but take more breaks. Watch for symptoms such as coughing or shortness of breath. People with asthma: Follow your asthma action plan and keep quick relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Unhealthy - Sensitive groups: Avoid long or intense outdoor activities. Consider rescheduling or moving activities indoors. Everyone else: Reduce long or intense activities. Take more breaks during outdoor activities. Media Contact...Illinois EPA
Technical Header
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-200515- 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 106 AM CDT Sun Jul 19 2026