Severe Flood ● Closed

Flood Watch issued October 1 at 1:24AM CDT until October 2 at 1:00AM CDT by NWS Des Moines IA, United States of America

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Much of central Iowa.

* WHEN...Through late tonight.

* 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...
- Moderate to heavy rain is ongoing over much of Iowa and is
expected to continue through the morning. Soils are already
saturated, with more rainfall on the way. Rainfall totals will
range from 2 to 4 inches in a southwest to northeast oriented
band across central Iowa, with locally higher amounts likely.
Another push of 1 to 2 inches of rainfall is expected across
southern and southeastern Iowa through mid- day today. This
rainfall may lead to flash flooding. Poor drainage and low lying
areas may experience ponding.

Significant rises are expected or ongoing 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

Coordinates39.9645, -100.8105
RegionHumboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall;
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyFuture
Cap CertaintyPossible
Cap Expires2026-10-01T21:30:00-05:00

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 report

This event as JSON · API and licence

Source updated 18 days ago (Oct 1, 2026 06:26 UTC) · we last heard from WMO Alert Hub (national weather services) 3 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.

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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.