Missouri Flood Warning | Effective 05/03/2026 08:23

Headline: 
Flood Warning issued May 3 at 10:23AM CDT until May 4 at 11:48PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 3, 2026 - 8:23am
Expires: 
May 4, 2026 - 8:30pm
Description: 
...The Flood Warning continues for the following rivers in Missouri... Meramec River near Arnold. 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...Meramec River near Arnold. * WHEN...Until Monday evening. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 24.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Sunday was 26.4 feet. - Forecast...The river is expected to fall below flood stage late this afternoon. - Flood stage is 24.0 feet.
Instruction: 
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: 
Jefferson, MO; St. Louis, MO
Forcast Office: 
NWS St Louis MO