WUUS53 KLSX 110817 SVRLSX ILC013-083-117-119-MOC113-183-189-510-110900- /O.NEW.KLSX.SV.W.0018.260311T0817Z-260311T0900Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service St Louis MO 317 AM CDT Wed Mar 11 2026 The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southeastern Calhoun County in southwestern Illinois... Southern Jersey County in southwestern Illinois... Southwestern Macoupin County in southwestern Illinois... Western Madison County in southwestern Illinois... East Central Lincoln County in east central Missouri... Northeastern Saint Charles County in east central Missouri... Northeastern Saint Louis County in east central Missouri... Northeastern Saint Louis City in east central Missouri... * Until 400 AM CDT. * At 317 AM CDT, severe thunderstorms were located along a line from 6 miles northeast of Winfield to over Cottleville, or along a line from 13 miles southeast of Elsberry to over Cottleville, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... O'Fallon, Dardenne Prairie, St. Peters, St. Charles, Maryland Heights, Bridgeton, Hazelwood, Florissant, St. Ann, Ferguson, Godfrey, Bellefontaine Neighbors, Jennings, Alton, Granite City, Edwardsville and Glen Carbon. This includes the following State Parks... Confluence State Park, First Missouri State Capitol Historic Site and Pere Marquette State Park. This includes Interstate 70 in Missouri between exits 217 and 231. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. && LAT...LON 3871 9074 3886 9071 3906 9077 3914 8996 3889 8991 3871 8996 TIME...MOT...LOC 0816Z 268DEG 49KT 3903 9065 3886 9058 3874 9064 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Elmore