Illinois Severe Thunderstorm Warning | Effective 04/17/2026 18:29

Headline: 
Severe Thunderstorm Warning issued April 17 at 8:29PM CDT until April 17 at 9:00PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 6:29pm
Expires: 
April 17, 2026 - 7:00pm
Description: 
SVRLOT The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Northern Kane County in northeastern Illinois... McHenry County in northeastern Illinois... * Until 900 PM CDT. * At 829 PM CDT, a severe thunderstorm was located over Lakewood, or over Huntley, moving northeast at 75 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... Elgin, Crystal Lake, Carpentersville, Algonquin, Lake in the Hills, McHenry, Woodstock, Huntley, Fox Lake, Island Lake, Cary, Pingree Grove, Gilberts, West Dundee, Hampshire, Johnsburg, Lakemoor, Twin Lakes, Spring Grove, Fox River Grove, Barrington Hills, Wonder Lake, Lakewood, Pistakee Highlands, and Sleepy Hollow.
Instruction: 
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. A Tornado Watch remains in effect until 1000 PM CDT for northeastern Illinois. A Tornado Watch also remains in effect until 1100 PM CDT for northeastern Illinois.
Area Description: 
Kane, IL; McHenry, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov