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Extreme Heat Warning

◍ Joshua Tree NP East · USA · updated 8/25/2026, 6:18:00 AM

⏱ In effect until 11:30 AM UTC-7

Severity score

65/100

Confidence

High

Why this matters

* WHAT...Dangerously hot conditions. Afternoon temperatures 103 to 114 expected. Major to Extreme Heat Risk. * WHERE...Chuckwalla Mountains, Salton Sea, Chiriaco Summit, and Joshua Tree NP East. * WHEN...From 10 AM Tuesday to 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop an

Key stats

Severity

Severe

Certainty

Likely

Urgency

Expected

Timeline

Extreme Heat Warning
8/25/2026, 6:18:00 AM
Extreme Heat Warning issued August 24 at 11:18PM MST until August 28 at 8:00PM MST by NWS Phoenix AZ

Sources & attribution

OfficialNWS NWS Phoenix AZupdated 8/25/2026, 6:18:00 AM

OfficialNWS NWS San Juan PRupdated 8/25/2026, 5:34:00 AM

OfficialNWS NWS Shreveport LAupdated 8/25/2026, 5:19:00 AM

OfficialNWS NWS Norman OKupdated 8/25/2026, 5:09:00 AM

OfficialNWS NWS Albuquerque NMupdated 8/25/2026, 4:20:00 AM

OfficialNWS NWS Tulsa OKupdated 8/25/2026, 4:14:00 AM

OfficialNWS NWS El Paso Tx/Santa Teresa NMupdated 8/25/2026, 3:39:00 AM

OfficialNWS NWS Amarillo TXupdated 8/25/2026, 3:33:00 AM

OfficialNWS NWS Lake Charles LAupdated 8/25/2026, 3:23:00 AM

OfficialNWS NWS Midland/Odessa TXupdated 8/25/2026, 3:05:00 AM

OfficialNWS NWS Spokane WAupdated 8/24/2026, 11:38:00 PM

OfficialNWS NWS Los Angeles/Oxnard CAupdated 8/24/2026, 7:44:00 PM

OfficialNWS NWS Flagstaff AZupdated 8/24/2026, 7:46:00 AM

⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.