Iowa Severe Flood Warning | Effective 06/18/2026 18:28

Headline: 
Flood Warning issued June 18 at 8:28PM CDT until June 23 at 9:00AM CDT by NWS Quad Cities IA IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 18, 2026 - 6:28pm
Expires: 
June 19, 2026 - 6:30pm
Description: 
...The Flood Warning continues for the following rivers in Iowa... Iowa River at Wapello affecting Louisa County. Iowa River near Lone Tree affecting Washington, Johnson and Louisa Counties. Iowa River at Oakville affecting Louisa County. English River at Kalona affecting Washington and Johnson Counties. Iowa River at Marengo affecting Benton and Iowa Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...From Friday afternoon to late Tuesday morning. * IMPACTS...At 16.0 feet, Water affects agricultural land along the river. Water is several feet deep in places. * ADDITIONAL DETAILS... - At 8:00 PM CDT Thursday the stage was 14.0 feet and rising. - Forecast...The river is expected to rise above flood stage early tomorrow afternoon to a crest of 15.8 feet Sunday morning. It will then fall below flood stage early Tuesday morning. - Flood stage is 15.0 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 by Friday evening at 830 PM CDT.
Area Description: 
Benton, IA; Iowa, IA
Forcast Office: 
NWS Quad Cities IA IL