Severe Flood ● Active
Flood Watch issued October 30 at 2:43AM MST until November 2 at 5:00AM MST by NWS Tucson AZ, United States of America
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* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...A portion of Southeast Arizona, including the following
areas, Baboquivari Mountains, Catalina and Rincon Mountains,
Dragoon and Mule and Huachuca and Santa Rita Mountains, 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 and White Mountains of Graham and Greenlee
Counties.
* WHEN...From Saturday evening through late Sunday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.
* ADDITIONAL DETAILS...
- A strong weather system approaching the area will bring
widespread to numerous showers Sunday. Moderate to locally heavy
rainfall with rainfall totals 0.5 to 1 inch possible in the
valleys and 1 to 2+ inches possible in the mountains.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/V |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-30T16:00:00-07:00 |
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 1 hour ago (Oct 30, 2026 09:44 UTC) · we last heard from WMO Alert Hub (national weather services) 25 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: Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/V
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.