Illinois Severe Severe Thunderstorm Warning | Effective 08/09/2026 21:36

Headline: 
Severe Thunderstorm Warning issued August 9 at 11:36PM CDT until August 10 at 12:00AM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 9, 2026 - 9:36pm
Expires: 
August 9, 2026 - 10:00pm
Description: 
At 1136 PM CDT, a severe thunderstorm was located over Palatine, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Arlington Heights, Palatine, Des Plaines, Mount Prospect, Glenview, Buffalo Grove, Wheeling, Park Ridge, Elk Grove Village, Mundelein, Niles, Vernon Hills, Lake Zurich, Barrington, Rolling Meadows, Prospect Heights, Long Grove, Hawthorn Woods, Inverness, Lincolnshire, Kildeer, Forest Lake, Deer Park, and Indian Creek.
Instruction: 
A tornado watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted act quickly and move to a place of safety inside a sturdy structure, such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Cook, IL; Lake, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov