Severe Flood ● Closed
Flood Watch issued September 28 at 1:15PM MST until September 29 at 11:00PM MST by NWS Tucson AZ, United States of America
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* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...For all of southeast Arizona, including the following
areas, Baboquivari Mountains, Catalina and Rincon Mountains,
Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita
Mountains, Eastern Cochise County below 5000 feet, Galiuro and
Pinaleno Mountains, South Central Pinal County, Southeast Pinal
County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River
Valley, Upper San Pedro River Valley, Upper Santa Cruz River
Valley/Altar Valley, Western Pima County and White Mountains of
Graham and Greenlee Counties.
* WHEN...Through Tuesday evening area wide. Coverage and intensity of
showers and storms increase through the afternoon today and into
the evening. The greatest risk for flash flooding will be from
early Tuesday morning through Tuesday late afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Low-water crossings may be flooded.
* ADDITIONAL DETAILS...
- Deep tropical moisture will combine with an approaching upper low
and trough, resulting in areas of heavy rainfall. Rainfall totals
of 1 to 2 inches are possible across most valley locations in
Southeast Arizona, with 2 to 4 inches possible across the Sky
Islands and White Mountains. Locally heavier amounts are possible
under the stronger thunderstorms, especially for the White
Mountains.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys incl |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-09-29T05:00:00-07:00 |
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 reportThis event as JSON · API and licence
Source updated 21 days ago (Sep 28, 2026 20:16 UTC) · we last heard from WMO Alert Hub (national weather services) 48 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: Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys incl
Official authorities in United States
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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.