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

Headline: 
Flood Warning issued September 21 at 9:48PM CDT until September 26 at 7:00PM 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 Canton. * WHEN...From late Thursday night to Saturday evening. * IMPACTS...At 14.0 feet, Both banks begin to overflow. * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 11.1 feet and rising. - Forecast...The river is expected to rise to a crest of 15.0 feet early Friday morning. It will then fall below flood stage early Friday afternoon. - Flood stage is 15.0 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: 
Adams, IL; Lewis, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov