Illinois, Missouri Severe Flood Warning | Effective 09/21/2026 19:48

Headline: 
Flood Warning issued September 21 at 9:48PM CDT until September 28 at 12:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
September 21, 2026 - 7:48pm
Expires: 
September 23, 2026 - 8:00am
Description: 
...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Canton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...From Wednesday afternoon to Monday afternoon. * IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off Highway 79 begins flooding. * ADDITIONAL DETAILS... - At 9:30 PM CDT Monday the stage was 21.9 feet and rising. - Forecast...The river is expected to rise above flood stage Wednesday afternoon to a crest of 26.8 feet early Friday afternoon. It will then fall below flood stage Sunday morning. - Flood stage is 25.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Calhoun, IL; Pike, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov