# Extreme Heat Watch: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side — retained record

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

Canonical: https://highsignal.app/data/records/80a83188e32a0db1

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-21 00:28 ingested 2026-07-21 08:26

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

## extract

Extreme Heat Watch — Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Severity: Severe. Certainty: Likely.
* WHAT...Dangerously hot conditions possible.  Afternoon temperatures
in the desert valleys will climb into the 108 to 114 degree range,
and may exceed 115 along the Colorado River Valley, and 120 Death
Valley.

* WHERE...Portions of northwest Arizona, southeast California, and
southern Nevada including the Greater Mojave Desert region.

* WHEN...From Thursday morning through Monday evening.

* 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The historical document was shared with another weather alert and cannot be attributed to this record.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.