Illinois Tornado Warning | Effective 04/17/2026 17:51

Headline: 
Tornado Warning issued April 17 at 7:51PM CDT until April 17 at 8:15PM CDT by NWS Chicago IL
Event: 
Tornado Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 5:51pm
Expires: 
April 17, 2026 - 6:15pm
Description: 
At 751 PM CDT, a severe thunderstorm capable of producing a tornado was located near Harvard, moving east at 45 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This dangerous storm will be near... Wonder Lake and Hebron around 755 PM CDT. Other locations in the path of this tornadic thunderstorm include McHenry, Johnsburg, Spring Grove, Richmond, Fox Lake, Pistakee Highlands and McCullom Lake.
Instruction: 
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Area Description: 
McHenry, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov