Severe Flood ● Closed

Flood Watch issued September 16 at 12:45AM MST until September 16 at 11:00PM MST by NWS Phoenix AZ, 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...Flash flooding caused by excessive rainfall will be
possible.

* WHERE...A portion of southwest Arizona, including the following
areas, Central La Paz, Gila River Valley and Kofa.

* WHEN...From 11 AM MST this morning through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, normally dry washes, and other low-lying and
flood-prone locations.

* ADDITIONAL DETAILS...
- The combination of abundant moisture, afternoon heating, and a
weather system moving into the region will support showers and
thunderstorms today through this evening. Moderate to heavy
rainfall with rainfall rates in excess of 1-2 inches per hour is
expected with most storms and storms may train over the same
areas leading to high rainfall accumulations.
- http://www.weather.gov/safety/flood

Measurements

Coordinates39.9645, -100.8105
RegionKofa; Central La Paz; Gila River Valley
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyFuture
Cap CertaintyPossible
Cap Expires2026-09-16T15:00:00-07:00

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: WMO WMO WMO

This event as JSON · API and licence

Source updated 33 days ago (Sep 16, 2026 07:46 UTC) · we last heard from WMO Alert Hub (national weather services) 27 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

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: Kofa; Central La Paz; Gila River Valley

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.