Missouri Minor Flood Advisory | Effective 09/17/2026 14:53

Headline: 
Flood Advisory issued September 17 at 4:53PM CDT until September 17 at 6:45PM CDT by NWS St Louis MO
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
September 17, 2026 - 2:53pm
Expires: 
September 17, 2026 - 4:45pm
Description: 
* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...Northwestern Saint Charles County in east central Missouri... * WHEN...Until 645 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 451 PM CDT, Doppler radar indicated that the heavy rain had ended. However, radar estimates that between 1 and 3 inches of rain has fallen. Therefore the threat for urban and small stream flooding will continue due to the runoff. - Some locations that will experience flooding include... O'Fallon, St. Charles, St. Peters, Wentzville, Lake St. Louis, St. Paul, Josephville and Kampville.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
St. Charles, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov