NWS Des Moines IAFL.W 0022September 17, 2026
Flood Warning: Polk and Warren, IA
The National Weather Service office in Des Moines issued a flood warning for Polk and Warren in Iowa, which was in force until 5:00 p.m. local time on September 19. It was the 22nd 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 40 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
- Polk and Warren
- State
- Iowa
- Level
- Warning
- Issued
- 9:35 p.m. CDT, September 17, 2026
- In force from
- 1:00 a.m. CDT, September 18, 2026
- Expires
- 5:00 p.m. CDT, September 19, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KDMX FL.W 0022
- 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... 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.
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 24 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.