At 614 PM CDT, Doppler radar indicated the thunderstorms which produced heavy rain across the warned area have largely ended. However, runoff from the storms is still occurring. Between 1 and 3 inches of rain have fallen. Be aware of ongoing flash flooding.
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, Dardenne Prairie, Weldon Spring, Cottleville, St. Paul, Weldon Spring Heights, Harvester and Kampville.
This includes the following State Parks... First Missouri State Capitol Historic Site.
This includes Interstate 70 in Missouri between exits 216 and 229.