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NWS San Diego CAXH.W 0009September 7, 2026

Extreme Heat Warning: Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning, CA

The National Weather Service office in San Diego issued an extreme heat warning for Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning in California, which was in force until 8:00 p.m. local time on September 11. It was the 9th extreme heat warning the NWS office in San Diego issued in 2026. California had 4 extreme heat warnings in September 2026, against 3 in an average September of 2008-2025 (California's extreme heat warnings by year).

ExpiredWarning

Issued11:09 a.m. PDT, September 7, 2026
In force from10:00 a.m. PDT, September 9, 2026
Expired8:00 p.m. PDT, September 11, 2026

In force for 2 days; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, San Diego CA
Area
Coachella Valley, San Diego County Deserts and San Gorgonio Pass Near Banning
State
California
Level
Warning
Issued
11:09 a.m. PDT, September 7, 2026
In force from
10:00 a.m. PDT, September 9, 2026
Expires
8:00 p.m. PDT, September 11, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KSGX XH.W 0009
Official source
National Weather Service: the notice at its source

Extreme Heat Warnings in California since 2008Every warning type in California

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

* WHAT...Dangerously hot conditions with temperatures up to 110 degrees expected and overnight low temperatures in the mid-80s to low 90s. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...From 10 AM Wednesday to 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Areas of major HeatRisk. Elevated lows will limit overnight relief from the heat.

What the agency told people to do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice