Severe Heatwave ● Closed
Extreme Heat Warning issued October 8 at 12:33PM MST until October 8 at 8:00PM MST by NWS Phoenix AZ, 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 conditions possible. Afternoon temperatures
102 to 106. Major Heat Risk.
* WHERE...In Arizona, Gila River Valley and Parker Valley. In
California, Chuckwalla Valley and Palo Verde Valley.
* WHEN...Until 8 PM MST /8 PM PDT/ this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Parker Valley; Gila River Valley; Palo Verde Valley; Chuckwalla Valley |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-08T20:00:00-07:00 |
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 11 days ago (Oct 8, 2026 19:34 UTC) · we last heard from WMO Alert Hub (national weather services) 57 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: Parker Valley; Gila River Valley; Palo Verde Valley; Chuckwalla Valley
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 →Earlier heatwave 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.