Illinois Severe Flood Warning | Effective 06/23/2026 06:01

Headline: 
Flood Warning issued June 23 at 8:01AM CDT until June 24 at 4:20AM CDT by NWS Quad Cities IA IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 23, 2026 - 6:01am
Expires: 
June 24, 2026 - 2:30am
Description: 
...The Flood Warning is extended for the following rivers in Iowa... Illinois... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. La Moine River at Colmar affecting McDonough and Hancock Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...La Moine River at Colmar. * WHEN...Until late tonight. * IMPACTS...At 20.0 feet, Water affects the lowest portions of Lambert Road and affects Lamar Road approximately 100 feet north of the intersection with County Road 26. * ADDITIONAL DETAILS... - At 7:45 AM CDT Tuesday the stage was 20.8 feet and steady. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 AM CDT Tuesday was 21.3 feet. - Forecast...The river is expected to fall below flood stage this evening and continue falling to 6.7 feet Tuesday, June 30. - Flood stage is 20.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. The next statement will be issued by late tonight at 430 AM CDT.
Area Description: 
Hancock, IL; McDonough, IL
Forcast Office: 
NWS Quad Cities IA IL