Illinois, Missouri Severe Thunderstorm Warning | Effective 04/17/2026 20:14

Headline: 
Severe Thunderstorm Warning issued April 17 at 10:14PM CDT until April 17 at 10:45PM CDT by NWS St Louis MO
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 8:14pm
Expires: 
April 17, 2026 - 8:45pm
Description: 
SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Jersey County in southwestern Illinois... Northwestern Madison County in southwestern Illinois... Northeastern Saint Charles County in east central Missouri... * Until 1045 PM CDT. * At 1014 PM CDT, severe thunderstorms were located along a line from over Hardin to over Orchard Farms, or along a line from 10 miles east of Elsberry to near St. Charles, moving east at 50 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Hazelwood around 1015 PM CDT. Grafton, Portage Des Sioux and Florissant around 1020 PM CDT. Elsah around 1025 PM CDT. Other locations impacted by the severe thunderstorm include Fieldon, Nutwood, Otterville, McClusky, Delhi and Fidelity. This includes the following State Parks... Confluence State Park.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. A Tornado Watch remains in effect until 1100 PM CDT for portions of southwest Illinois and east central Missouri.
Area Description: 
Jersey, IL; Madison, IL; St. Charles, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov