Severe Flood ● Closed
Flood Watch issued September 30 at 7:49PM CDT until October 2 at 1:00AM CDT by NWS Des Moines IA, United States of America
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* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Much of central Iowa.
* WHEN...Through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Area creeks and streams are running high and could flood with more
heavy rain.
* ADDITIONAL DETAILS...
- A prolonged period of moderate to heavy rain is forecast through
Thursday evening. It will be falling on already saturated soils.
Rainfall totals will range from 2 to 4 inches in a southwest to
northeast oriented band across central Iowa, with locally higher
amounts likely. This rainfall may lead to flash flooding. Poor
drainage and low lying areas may experience ponding.
Significant rises are expected on many rivers and streams, which
may exceed flood stage. Some larger river basins of most concern
include the South Skunk River basin from Ames downstream, the Des
Moines River basin Des Moines downstream, the Raccoon River
downstream of U.S. Hwy 30, as well as the North, Middle, South,
Nishnabotna, Grand and Chariton River basins.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-01T16:00:00-05:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 18 days ago (Oct 1, 2026 00:50 UTC) · we last heard from WMO Alert Hub (national weather services) 50 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall;
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.