NWS Des Moines IAFL.W 0027September 30, 2026
Flood Warning: Cass, IA
The National Weather Service office in Des Moines issued a flood warning for Cass in Iowa, which was in force until 3:00 a.m. local time on October 2. It was the 27th river flood warning the NWS office in Des Moines issued in 2026. Iowa had 29 flood warnings in September 2026, against 18 in an average September of 2008-2025 (Iowa's flood warnings by year).
ExpiredWarning
In force for 20.9 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Des Moines IA
- Area
- Cass
- State
- Iowa
- Level
- Warning
- Issued
- 8:36 p.m. CDT, September 30, 2026
- In force from
- 6:08 a.m. CDT, October 1, 2026
- Expires
- 3:00 a.m. CDT, October 2, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KDMX FL.W 0027
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
...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...East Nishnabotna River near Atlantic, or from Troublesome Creek near Atlantic to Indian Creek near Lewis. * WHEN...From Thursday morning to late Thursday night. * IMPACTS...At 22.8 feet, Water affects Lansing Rd on both sides of the river. * ADDITIONAL DETAILS... - At 7:00 PM CDT Wednesday the stage was 5.1 feet, and rising. - Forecast...The river is expected to rise above flood stage tomorrow morning to a crest of 22.0 feet early tomorrow afternoon. It will then fall below flood stage late tomorrow evening. - Flood stage is 19.0 feet.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.