Missouri Flood Warning - [Severity] | Effective 05/21/2026 10:01

Headline: 
Flood Warning issued May 21 at 12:01PM CDT until May 26 at 1:00AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 21, 2026 - 10:01am
Expires: 
May 22, 2026 - 10:15pm
Description: 
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Missouri River at Hermann. Missouri River near Chamois. Bourbeuse River at Union. Kaskaskia River at Carlyle. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Missouri River near Chamois. * WHEN...Until late Monday night. * IMPACTS...At 17.0 feet, Flood Stage: Lower lying bottom land begins to flood. * ADDITIONAL DETAILS... - There is no current observed data. - Forecast...The river will rise to 18.9 feet tomorrow morning. It will then fall tomorrow evening. It will rise to 18.8 feet Saturday morning. It will then fall below flood stage early Sunday afternoon. - Flood stage is 17.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Callaway, MO; Osage, MO
Forcast Office: 
NWS St Louis MO