Missouri Flood Warning - Severe | Effective 05/22/2026 08:43

Headline: 
Flood Warning issued May 22 at 10:43AM CDT until May 24 at 5:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 22, 2026 - 8:43am
Expires: 
May 23, 2026 - 8:45pm
Description: 
...The Flood Warning continues for the following rivers in Missouri... Missouri River at Hermann. Missouri River near Chamois. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Hermann. * WHEN...Until Sunday afternoon. * IMPACTS...At 22.3 feet, Southern portions of Old Rock Road and Twisters Road south of Rhineland begin flooding near this height. * ADDITIONAL DETAILS... - At 9:30 AM CDT Friday the stage was 21.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM CDT Friday was 22.0 feet. - Forecast...The river is expected to rise to a crest of 21.9 feet this afternoon. It will then fall below flood stage late tomorrow morning. - Flood stage is 21.0 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: 
Gasconade, MO; Montgomery, MO
Forcast Office: 
NWS St Louis MO