Flash Flood Warning

Locations Affected

New Baden, IL ∙ Breese, IL ∙ Rentchler, IL ∙ Damiansville, IL ∙ Summerfield, IL ∙ Germantown, IL ∙ O'Fallon, IL ∙ New Memphis, IL ∙ Mascoutah, IL ∙ Saint Rose, IL

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service St Louis MO 348 PM CDT Thu Jul 17 2025 The National Weather Service in St Louis has issued a * Flash Flood Warning for... Western Clinton County in south central Illinois... Northeastern Saint Clair County in southwestern Illinois... * Until 645 PM CDT. * At 348 PM CDT, trained weather spotters reported thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. 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...Trained spotters reported. 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... Belleville, O'Fallon, Shiloh, Mascoutah, Breese, Lebanon, Freeburg, New Baden, Carlyle, Scott AFB, Trenton, Aviston, St. Rose, Germantown, Albers, Beckemeyer, New Memphis, Jamestown, Bartelso and Damiansville. This includes Interstate 64 in Illinois between exits 19 and 34. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. && LAT...LON 3843 8995 3866 8994 3866 8960 3874 8960 3874 8937 3849 8941 3850 8943 3847 8948 3848 8958 3847 8961 3845 8963 3844 8967 3843 8968 FLASH FLOOD...OBSERVED EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

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