Missouri Flood Warning | Effective 05/01/2026 19:11

Headline: 
Flood Warning issued May 1 at 9:11PM CDT until May 5 at 1:00AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 1, 2026 - 7:11pm
Expires: 
May 3, 2026 - 7:15am
Description: 
...The Flood Warning is extended 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 late Monday night. * IMPACTS...At 27.0 feet, Meramec Bottom Road between Wells Road and Kerth Road begins flooding near this height. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 27.1 feet and falling. - Recent Activity...The river rose above flood stage early in the morning on April 29. It crested near 27.3 feet on May 1. - Forecast...The river is expected to fall below flood stage Sunday evening and continue falling over the following days. - 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
Sender: 
w-nws.webmaster@noaa.gov