Illinois, Missouri Flash Flood Warning - Severe | Effective 06/08/2026 09:11

Headline: 
Flash Flood Warning issued June 8 at 11:11AM CDT until June 8 at 3:30PM CDT by NWS St Louis MO
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 8, 2026 - 9:11am
Expires: 
June 8, 2026 - 1:30pm
Description: 
At 1111 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... O'Fallon, St. Charles, St. Peters, Florissant, Chesterfield, Wildwood, Ballwin, Kirkwood, Maryland Heights, Hazelwood, Manchester, Creve Coeur, Overland, St. Ann, Bridgeton, Dardenne Prairie and Town and Country. This includes the following State Parks... Babler Memorial State Park, Route 66 State Park, Castlewood State Park, First Missouri State Capitol Historic Site and Robertsville State Park. This includes the following highways... Interstate 70 in Missouri between exits 219 and 231. Interstate 44 in Missouri between exits 247 and 276.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Madison, IL; Franklin, MO; Jefferson, MO; St. Charles, MO; St. Louis, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov