Severe Flood ● Active

Flood Watch issued October 20 at 12:04AM MST until October 22 at 5:00PM 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 is possible.

* WHERE...A portion of south central Arizona, including the following
areas, Aguila Valley, Apache Junction/Gold Canyon,
Buckeye/Avondale, Cave Creek/New River, Central Phoenix, Deer
Valley, East Valley, Fountain Hills/East Mesa, North
Phoenix/Glendale, Northwest Pinal County, Northwest Valley,
Scottsdale/Paradise Valley, South Mountain/Ahwatukee, Southeast
Valley/Queen Creek, Tonopah Desert and West Pinal County.

* WHEN...From Wednesday evening through Thursday afternoon.

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

* ADDITIONAL DETAILS...
- A strong weather system affecting the region will bring
widespread showers and thunderstorms, particularly from Wednesday
evening through Thursday afternoon. Moderate to heavy rainfall
with localized rainfall rates upwards of 1 to 2 inches per hour
will be possible at times.
- http://www.weather.gov/safety/flood

Measurements

Coordinates39.9645, -100.8105
RegionAguila Valley; Northwest Valley; Tonopah Desert; Buckeye/Avondale; Cave Creek/New River; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/P
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyFuture
Cap CertaintyPossible
Cap Expires2026-10-20T14:00:00-07:00

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

This event as JSON · API and licence

Source updated 1 hour ago (Oct 20, 2026 07:05 UTC) · we last heard from WMO Alert Hub (national weather services) 30 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: Aguila Valley; Northwest Valley; Tonopah Desert; Buckeye/Avondale; Cave Creek/New River; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/P

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.