Illinois Severe Thunderstorm Warning | Effective 04/17/2026 19:59

Headline: 
Severe Thunderstorm Warning issued April 17 at 9:59PM CDT until April 17 at 10:45PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 7:59pm
Expires: 
April 17, 2026 - 8:45pm
Description: 
At 959 PM CDT, severe thunderstorms were located along a line extending from Lake Bluff to Skokie to East Garfield Park to Manhattan, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Chicago, Evanston, Orland Park, Tinley Park, Oak Lawn, West Ridge, West Town, Roseland, Chicago Lawn, Bridgeport, Hammond, Calumet City, Chicago Heights, Lansing, Park Forest, Steger, Glenwood, Thornton, Munster, Sauk Village, Lynwood, Crete, Ford Heights and Beecher.
Instruction: 
A Tornado Watch remains in effect until 1100 PM CDT for northeastern Illinois...and northwestern Indiana. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Cook, IL; Will, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov