Iowa Severe Flood Warning | Effective 09/20/2026 03:43

Headline: 
Flood Warning issued September 20 at 5:43AM CDT until September 22 at 6:00PM CDT by NWS Quad Cities IA IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
September 20, 2026 - 3:43am
Expires: 
September 21, 2026 - 3:45am
Description: 
...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa... Iowa River near Lone Tree affecting Louisa, Washington and Johnson Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River near Lone Tree. * WHEN...From this morning to Tuesday evening. * IMPACTS...At 18.0 feet, Sand Road closes south of 520th Street to the Highway 22 intersection. * ADDITIONAL DETAILS... - At 5:00 AM CDT Sunday the stage was 13.7 feet. - Forecast...The river is expected to rise above flood stage late this morning to a crest of 18.0 feet this evening. It will then fall below flood stage late Tuesday morning. - Flood stage is 16.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/quadcities. The next statement will be issued by late tonight.
Area Description: 
Johnson, IA; Louisa, IA; Washington, IA
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov