Iowa Severe Flood Warning | Effective 09/17/2026 19:35

Headline: 
Flood Warning issued September 17 at 9:35PM CDT until September 19 at 5:00PM CDT by NWS Des Moines IA
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
September 17, 2026 - 7:35pm
Expires: 
September 18, 2026 - 7:45am
Description: 
...The National Weather Service in Des Moines has issued a Flood Warning for the following rivers in Iowa... North River near Norwalk Hwy R57 affecting Warren and Polk Counties. * WHAT...Minor flooding is forecast. * WHERE...North River near Norwalk Hwy R57, or from the Madison-Warren County line to the Des Moines River. * WHEN...From late tonight to Saturday afternoon. * IMPACTS...At 22.0 feet, Water is over Iowa 28 immediately south of Norwalk and threatens several rural gravel roads. * ADDITIONAL DETAILS... - At 9:15 PM CDT Thursday the stage was 21.9 feet, and falling. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 22.2 feet early tomorrow afternoon. It will then fall below flood stage late Saturday morning. - Flood stage is 22.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. For the latest stream observations and forecasts refer to weather.gov/desmoines/water. River forecasts include observed precipitation plus forecast precipitation over the next 24 hours.
Area Description: 
Polk, IA; Warren, IA
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov