Illinois, Missouri Severe Severe Thunderstorm Warning | Effective 09/09/2026 21:37

Headline: 
Severe Thunderstorm Warning issued September 9 at 11:37PM CDT until September 10 at 12:15AM CDT by NWS St Louis MO
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
September 9, 2026 - 9:37pm
Expires: 
September 9, 2026 - 10:15pm
Description: 
SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Northwestern Monroe County in southwestern Illinois... Northern Jefferson County in east central Missouri... Southwestern Saint Louis County in east central Missouri... Saint Louis City in east central Missouri... * Until 1215 AM CDT. * At 1137 PM CDT, severe thunderstorms were located along a line from over Wildwood to near Hillsboro, moving east at 35 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Wildwood, Eureka, Ellisville, Ballwin, Manchester, Chesterfield, Arnold, Town and Country, Kirkwood, Crestwood, Creve Coeur, Webster Groves, Ladue, Columbia, St. Louis, Richmond Heights, Clayton, University City and Waterloo. This includes the following State Parks... Scott Joplin Historic Site, Route 66 State Park, Castlewood State Park, Mastodon Historic Site, Sandy Creek Covered Bridge Historic Site and Gov. Dunklin's Grave Historic Site. This includes the following highways... Interstate 44 in Missouri between exits 261 and 277. Interstate 55 in Missouri between exits 180 and 191.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds.
Area Description: 
Monroe, IL; Jefferson, MO; St. Louis, MO; St. Louis City, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov