Iowa Flood Warning | Effective 04/20/2026 18:39

Headline: 
Flood Warning issued April 20 at 8:39PM CDT until April 21 at 11:15AM CDT by NWS Quad Cities IA IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 20, 2026 - 6:39pm
Expires: 
April 21, 2026 - 9:15am
Description: 
...The Flood Warning is extended for the following rivers in Iowa... Iowa River at Marengo affecting Benton and Iowa Counties. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Muscatine and Louisa Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...Until late tomorrow morning. * IMPACTS...At 15.0 feet, Water reaches the bottom of the levee surrounding Marengo. Water affects low lying agricultural land along the river * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 15.4 feet and falling. - Forecast...The river is expected to fall below flood stage late tonight and continue falling to 10.1 feet Monday, April 27. - Flood stage is 15.0 feet.
Instruction: 
Caution is urged when walking near riverbanks. 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 Tuesday morning at 1115 AM CDT.
Area Description: 
Benton, IA; Iowa, IA
Forcast Office: 
NWS Quad Cities IA IL