Illinois Severe Thunderstorm Warning | Effective 04/15/2026 01:12

Headline: 
Severe Thunderstorm Warning issued April 15 at 3:12AM CDT until April 15 at 3:30AM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 15, 2026 - 1:12am
Expires: 
April 15, 2026 - 1:30am
Description: 
At 312 AM CDT, a severe thunderstorm was located over Hebron, or near Lake Geneva, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... McHenry, Fox Lake, Johnsburg, Lakemoor, Spring Grove, Wonder Lake, Pistakee Highlands, Richmond, Hebron, McCullom Lake, Ringwood, and Greenwood.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
McHenry, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov