Iowa Severe Flood Warning | Effective 09/30/2026 18:36

Headline: 
Flood Warning issued September 30 at 8:36PM CDT until October 3 at 3:00AM CDT by NWS Des Moines IA
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
September 30, 2026 - 6:36pm
Expires: 
October 1, 2026 - 6:45am
Description: 
...The National Weather Service in Des Moines has issued a Flood Warning for the following rivers in Iowa... East Nishnabotna River near Atlantic affecting Cass County. Thompson River at Davis City affecting Decatur County. * WHAT...Minor flooding is forecast. * WHERE...Thompson River at Davis City, or from the City of Grand River to the Iowa-Missouri border. * WHEN...From late Thursday night to late Friday night. * IMPACTS...At 12.0 feet, Widespread flooding occurs at the Davis City park including the campgrounds. Water affects Hwy R15 just north of the town of Grand River in northwest Decatur County. * ADDITIONAL DETAILS... - At 8:00 PM CDT Wednesday the stage was 8.6 feet, and rising. - Forecast...The river is expected to rise above flood stage early Friday morning to a crest of 12.4 feet early Friday afternoon. It will then fall below flood stage late Friday evening. - Flood stage is 12.0 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 48 hours.
Area Description: 
Decatur, IA
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov