221
WWUS76 KSGX 230941
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
241 AM PDT Sat Aug 23 2025

CAZ060-240300-
/O.CON.KSGX.XH.W.0003.000000T0000Z-250824T0300Z/
Apple and Lucerne Valleys-
Including the cities of Lucerne Valley, Hesperia, Victorville,
and Apple Valley
241 AM PDT Sat Aug 23 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 103
  expected.

* WHERE...Apple and Lucerne Valleys.

* WHEN...Until 8 PM PDT this evening.

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

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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

CAZ061-062-065-240300-
/O.CON.KSGX.XH.W.0003.000000T0000Z-250824T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Palm Desert Country, Cathedral City,
Indio, Coachella, Palm Springs, La Quinta, Palm Desert, and
Borrego Springs
241 AM PDT Sat Aug 23 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 112.

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

* WHEN...Until 8 PM PDT this evening.

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

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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

CAZ048-240300-
/O.CON.KSGX.HT.Y.0005.000000T0000Z-250824T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Fontana, Riverside, Moreno Valley, Rancho
Cucamonga, Ontario, San Bernardino, and Corona
241 AM PDT Sat Aug 23 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* WHAT...Temperatures up to 104 expected.

* WHERE...San Bernardino and Riverside County Valleys-The Inland
  Empire.

* WHEN...Until 8 PM PDT this evening.

* 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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

CAZ050-240300-
/O.CON.KSGX.HT.Y.0005.000000T0000Z-250824T0300Z/
San Diego County Valleys-
Including the cities of Santee, San Marcos, La Mesa, El Cajon,
Escondido, and Poway
241 AM PDT Sat Aug 23 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* WHAT...Temperatures up to 100 for the inland valleys expected.

* WHERE...San Diego County Valleys.

* WHEN...Until 8 PM PDT this evening.

* 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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

CAZ057-554-240300-
/O.CON.KSGX.HT.Y.0005.000000T0000Z-250824T0300Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the cities of Anaheim, Garden Grove, Fullerton, Mission
Viejo, Irvine, Santa Ana, and Orange
241 AM PDT Sat Aug 23 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* WHAT...Temperatures up to 94 expected.

* WHERE...Orange County Inland Areas and Santa Ana Mountains and
  Foothills.

* WHEN...Until 8 PM PDT this evening.

* 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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

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