Illinois Flood Warning | Effective 04/18/2026 07:34

Headline: 
Flood Warning issued April 18 at 9:34AM CDT until April 21 at 5:46AM CDT by NWS Quad Cities IA IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 18, 2026 - 7:34am
Expires: 
April 19, 2026 - 7:45am
Description: 
...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Illinois... La Moine River at Colmar affecting McDonough and Hancock Counties. * WHAT...Moderate flooding is forecast. * WHERE...La Moine River at Colmar. * WHEN...From this afternoon to early Tuesday morning. * IMPACTS...At 22.5 feet, Water affects lower roads around Birmingham. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 18.7 feet and rising. - Forecast...The river is expected to rise above flood stage this afternoon to a crest of 22.1 feet early tomorrow afternoon. It will then fall below flood stage late Monday evening. - Flood stage is 20.0 feet.
Instruction: 
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. The next statement will be issued bySunday morning at 945 AM CDT.
Area Description: 
Hancock, IL; McDonough, IL
Forcast Office: 
NWS Quad Cities IA IL