Illinois, Missouri Flood Warning | Effective 04/18/2026 10:05

Headline: 
Flood Warning issued April 18 at 12:05PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 18, 2026 - 10:05am
Expires: 
April 19, 2026 - 10:15pm
Description: 
...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Lock & Dam 21. Mississippi River at Quincy. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Quincy. * WHEN...From this evening until further notice. * IMPACTS...At 18.5 feet, BNSF Railroad main line, 10 to 16 miles above Quincy begins to flood at several locations. At 19.5 feet, Garages beneath raised homes along Bonansinga Drive will begin flooding near this height. * ADDITIONAL DETAILS... - At 11:15 AM CDT Saturday the stage was 18.1 feet. - Forecast...The river is expected to rise above flood stage this evening and continue rising to a crest of 19.4 feet tomorrow morning. - Flood stage is 19.0 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; Marion, MO
Forcast Office: 
NWS St Louis MO