Flood Warning Missouri | Effective 03/08/2026 19:05

Headline: 
Flood Warning issued March 8 at 9:05PM CDT until March 11 at 6:43AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
March 8, 2026 - 7:05pm
Expires: 
March 10, 2026 - 7:15am
Description: 
...The Flood Warning is extended for the following rivers in Missouri... Big River at Byrnesville. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Big River at Byrnesville. * WHEN...Until Wednesday morning. * IMPACTS...At 19.3 feet, South Byrnesville Road begins flooding near this level. * ADDITIONAL DETAILS... - At 8:45 PM CDT Sunday the stage was 19.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Sunday was 19.1 feet. - Forecast...The river is expected to rise to a crest of 19.9 feet tomorrow morning. It will then fall below flood stage Tuesday morning. - Flood stage is 16.0 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. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Jefferson, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov