Severe Heatwave ● Closed
Extreme Heat Warning issued September 9 at 3:14PM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Dangerously hot late-season conditions expected with high
temperatures up to 112 to 116 in Death Valley and the Colorado
River Valley; up to 105 to 110 in the Las Vegas Valley, Moapa
Valley, and Pahrump Valley.
* WHERE...Portions of northwest Arizona, southeast California, and
southern Nevada.
* WHEN...From 10 AM PDT /10 AM MST/ to 8 PM PDT /8 PM MST/ Thursday.
* IMPACTS...Heat-related illnesses increase significantly during
extreme heat.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Cadiz Basin; San Bernardino County- |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-10T05:00:00-07:00 |
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 39 days ago (Sep 9, 2026 22:15 UTC) · we last heard from WMO Alert Hub (national weather services) 16 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
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: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Cadiz Basin; San Bernardino County-
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.
Recognising heat exhaustion and heat stroke, keeping cool, and protecting vulnerable people during extreme heat.
Open Heatwave Safety Guide →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.