# Extreme Heat Warning: Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper Gila River and Aravaipa Valleys including Clifton/Safford — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/28867b6e5378e152

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-18 13:12 ingested 2026-08-19 06:41

[original source ↗](http://www.weather.gov/)

## extract

Extreme Heat Warning — Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper Gila River and Aravaipa Valleys including Clifton/Safford
Severity: Severe. Certainty: Likely.
* WHAT...Dangerously hot conditions with high temperatures ranging
between 103 to 110 degrees and low temperatures 79 to 85 degrees.
Major HeatRisk is expected.

* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and
Western Pima County.

* WHEN...Until 8 PM MST Friday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.