Illinois Severe Thunderstorm Warning | Effective 04/14/2026 18:49

Headline: 
Severe Thunderstorm Warning issued April 14 at 8:49PM CDT until April 14 at 9:30PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 14, 2026 - 6:49pm
Expires: 
April 14, 2026 - 7:30pm
Description: 
At 847 PM CDT, severe thunderstorms were located along a line extending from near Richmond to Harvard to near Poplar Grove to near Belvidere, moving east at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... McHenry, Belvidere, Woodstock, Fox Lake, Harvard, Johnsburg, Twin Lakes, Spring Grove, Wonder Lake, Pistakee Highlands, Marengo, Lakemoor, Prairie Grove, Crystal Lake, Island Lake, Lake in the Hills, Huntley, Lakewood, Oakwood Hills, Port Barrington, Algonquin, Cary, Fox River Grove and Barrington Hills.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for north central and northeastern Illinois. 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. Prepare immediately for damaging winds and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows.
Area Description: 
Boone, IL; McHenry, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov