Severe Flood ● Closed

Flood Warning issued October 1 at 7:59PM CDT until October 2 at 8:00AM CDT by NWS Omaha/Valley NE, 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 is expected.

* WHERE...Northeastern Mills County in southwestern Iowa...
South Central Pottawattamie County in southwestern Iowa...

* WHEN...Until 800 AM CDT Friday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring. Streams
continue to rise due to excess runoff from earlier rainfall.

* ADDITIONAL DETAILS...
- At 757 PM CDT, the river gage along the West Nishnabotna River
near Henderson reports rising water exceeding minor flood stage.
Flooding is already occurring in the warned area. Between 1 and 3
inches of rain fell in the area last night.
- Flooding impacts will continue, but no additional rainfall is
expected.
- Some locations that will experience flooding include...
areas near the West Nishnabotna River from Carson to Macedonia to
Henderson to Hastings, and Old Town Park.
- http://www.weather.gov/safety/flood

Measurements

Coordinates41.1480, -95.4553
RegionMills, IA; Pottawattamie, IA
Location Precisionpolygon
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyExpected
Cap CertaintyLikely
Cap Expires2026-10-02T08:00:00-05:00

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 report

Also reported by: NWS NWS NWS

This event as JSON · API and licence

Source updated 17 days ago (Oct 2, 2026 01:00 UTC) · we last heard from WMO Alert Hub (national weather services) 18 seconds ago

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Satellite view, before and after

The latest clear Sentinel-2 pass before this event and the earliest one after it.

Before
Sentinel-2 satellite image of the area on 5 Sep 2026, 26 days before this event

5 Sep 2026, 26 days before this event. 25.5% cloud across the tile.

After
Sentinel-2 satellite image of the area on 5 Oct 2026, 4 days after this event

5 Oct 2026, 4 days after this event. 0% cloud across the tile.

The white ring marks where the event was reported.

Each image is a preview of a whole Sentinel-2 tile — an area of roughly 110 by 110 km, where one pixel is about 320 metres — not a close-up of the event, which may be a small part of it. "Clear" means under 30% cloud across the entire tile, so the exact place that matters can still be hidden. These are pictures for context, not an assessment of damage.

Contains modified Copernicus Sentinel data 2026, found through the Earth Search catalogue (Element 84) and served from the AWS Open Data Sentinel-2 archive.

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.