Illinois, Missouri Flood Warning | Effective 04/18/2026 18:47

Headline: 
Flood Warning issued April 18 at 8:47PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 18, 2026 - 6:47pm
Expires: 
April 20, 2026 - 7:00am
Description: 
...The Flood Warning continues for the following river in Missouri... Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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...Mississippi River at Canton. * WHEN...Until further notice. * IMPACTS...At 16.6 feet, Front Street leading to the campground and Corps park campgrounds flood at this height. * ADDITIONAL DETAILS... - At 4:00 PM CDT Saturday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 PM CDT Saturday was 15.8 feet. - Forecast...The river is expected to rise to a crest of 16.0 feet Monday evening. - Flood stage is 15.0 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: 
Adams, IL; Lewis, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov