WWUS76 KSGX 220435
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
935 PM PDT Fri Aug 21 2026

CAZ061-062-065-221330-
/O.CON.KSGX.XH.W.0008.000000T0000Z-260829T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Palm Desert, Borrego Springs, La Quinta,
Coachella, Indio, Cathedral City, Palm Springs, and Palm Desert
Country
935 PM PDT Fri Aug 21 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY AUG 
28...

* WHAT...Dangerously hot conditions with temperatures up to 115.

* WHERE...Coachella Valley, San Diego County Deserts, and San 
  Gorgonio Pass near Banning.

* WHEN...Until 8 PM PDT Friday, August 28.

* IMPACTS...Heat related illnesses increase significantly during 
  extreme heat events.

* ADDITIONAL DETAILS...Overnight temperatures 5 to 8 degrees above 
  normal will limit relief from the heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ048-050-056>058-554-221330-
/O.CON.KSGX.HT.Y.0010.260822T1700Z-260825T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Diego County Valleys-Riverside County Mountains-Santa Ana
Mountains and Foothills-San Diego County Mountains-Orange County
Inland Areas-
Including the cities of Ontario, El Cajon, Pine Valley, Corona,
Anaheim, Santa Ana, Mission Viejo, Rancho Cucamonga, San
Bernardino, Garden Grove, Poway, Escondido, San Marcos, Fontana,
Moreno Valley, Irvine, Riverside, Orange, Santee, La Mesa,
Fullerton, Idyllwild-Pine Cove, and Julian
935 PM PDT Fri Aug 21 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO 8 PM PDT 
MONDAY...

* WHAT...Temperatures 90 to 97 for Inland Orange County, 90 to 102 
  for the San Diego County Valleys, 98 to 106 for the Inland Empire 
  and 89 to 100 in the mountains.

* WHERE...Orange County Inland Areas, Riverside County Mountains, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Mountains, San Diego County Valleys, and Santa Ana 
  Mountains and Foothills.

* WHEN...From 10 AM Saturday to 8 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal 
  will limit relief from the heat. Hot weather is likely to continue 
  much of next week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ055-221330-
/O.CON.KSGX.HT.Y.0010.260822T1700Z-260825T0300Z/
San Bernardino County Mountains-
Including the cities of Lake Arrowhead and Crestline
935 PM PDT Fri Aug 21 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO 8 PM PDT 
MONDAY FOR THE MOUNTAINS BELOW 6000 FT...

* WHAT...Temperatures 86 to 95 degrees expected.

* WHERE...San Bernardino County Mountains below 6000 ft.

* WHEN...From 10 AM Saturday to 8 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SS