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Extreme Heat Warning — Catalina and Santa Barbara Islands, CA, Santa Barbara County Southwestern Coast, CA, Santa Barbara County Southeastern Coast, CA, Ventura County Beaches, CA, Ventura County Inland Coast, CA, Malibu Coast, CA, Los Angeles County Beaches, CA, Palos Verdes Hills, CA, Los Angeles County Inland Coast including Downtown Los Angeles, CA
Issued
12:00 p. m. CDT · mar., ago. 25 2026
Expires
10:00 p. m. CDT · vie., ago. 28 2026
Issuing Office
NWS KLOX

Affected Areas

Catalina and Santa Barbara Islands, CA Santa Barbara County Southwestern Coast, CA Santa Barbara County Southeastern Coast, CA Ventura County Beaches, CA Ventura County Inland Coast, CA Malibu Coast, CA Los Angeles County Beaches, CA Palos Verdes Hills, CA Los Angeles County Inland Coast including Downtown Los Angeles, CA

Official Bulletin

725
WWUS76 KLOX 250702
NPWLOX

URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1202 AM PDT Tue Aug 25 2026

CAZ038-260000-
/O.CON.KLOX.XH.W.0006.260825T1700Z-260829T0300Z/
/O.CON.KLOX.HT.Y.0014.000000T0000Z-260825T1700Z/
Cuyama Valley-
Including the cities of New Cuyama
1202 AM PDT Tue Aug 25 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT THIS MORNING...

* WHAT...For the Heat Advisory, temperatures up to 101. For the
  Extreme Heat Warning, dangerously hot conditions with temperatures
  up to 105 expected.

* WHERE...Cuyama Valley.

* WHEN...For the Heat Advisory, until 10 AM PDT this morning. For the
  Extreme Heat Warning, from 10 AM this morning to 8 PM PDT Friday.

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

&&

$$

CAZ087-349-350-354-355-362-366>368-260000-
/O.CON.KLOX.XH.W.0006.260825T1700Z-260829T0300Z/
/O.CON.KLOX.HT.Y.0014.000000T0000Z-260825T1700Z/
Catalina and Santa Barbara Islands-Santa Barbara County
Southwestern Coast-Santa Barbara County Southeastern Coast-
Ventura County Beaches-Ventura County Inland Coast-Malibu Coast-
Los Angeles County Beaches-Palos Verdes Hills-Los Angeles County
Inland Coast including Downtown Los Angeles-
Including the cities of Gaviota, Avalon, Montecito, East Ventura,
Norwalk, LAX, Beverly Hills, Camarillo, Downey, Jalama Beach, Goleta,
Redondo Beach, Carpinteria, Torrance, Santa Monica, Port Hueneme,
Oxnard, Malibu, Point Mugu, Rancho Palos Verdes, Ventura, Refugio
State Beach, Compton, Santa Barbara, Culver City, El Capitan State
Beach, Pacific Palisades, Long Beach, and Hollywood
1202 AM PDT Tue Aug 25 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT THIS MORNING...

* WHAT...For the Heat Advisory, temperatures up to 95. For the
  Extreme Heat Warning, dangerously hot conditions with temperatures
  up to 102 expected.

* WHERE...Catalina and Santa Barbara Islands, Los Angeles County
  Beaches, Los Angeles County Inland Coast including Downtown Los
  Angeles, Malibu Coast, Palos Verdes Hills, Santa Barbara County
  Southeastern Coast, Santa Barbara County Southwestern Coast,
  Ventura County Beaches, and Ventura County Inland Coast.

* WHEN...For the Heat Advisory, until 10 AM PDT this morning. For the
  Extreme Heat Warning, from 10 AM this morning to 8 PM PDT Friday.

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

&&

$$

CAZ088-351>353-356>358-369>376-378>380-548-260000-
/O.CON.KLOX.XH.W.0006.260825T1700Z-260829T0300Z/
/O.CON.KLOX.HT.Y.0014.000000T0000Z-260825T1700Z/
Santa Clarita Valley-Santa Ynez Mountains Western Range-Santa
Ynez Mountains Eastern Range-Santa Barbara County Interior
Mountains-Lake Casitas-Ojai Valley-Central Ventura County Valleys-
Western Santa Monica Mountains Recreational Area-Eastern Santa
Monica Mountains Recreational Area-Calabasas and Agoura Hills-
Western San Fernando Valley-Eastern San Fernando Valley-
Southeastern Ventura County Valleys-Santa Susana Mountains-
Southern Ventura County Mountains-Interstate 5 Corridor-Western
San Gabriel Mountains and Highway 14 Corridor-Eastern San Gabriel
Mountains-Los Angeles County San Gabriel Valley-
Including the cities of Warm Springs, East Los Angeles, El Monte,
Universal City, San Rafael Mountain, Malibu Lake, Tejon Pass, The
Angeles Crest Highway, Thousand Oaks, Topanga, Valencia, Westlake
Village, Matilija, Piru, Lake Castaic, Mount Baldy, Figueroa
Mountain, Newbury Park, Oak View, Sunland, Moorpark, Santa Paula,
Ojai, Mount Wilson, Malibu Bowl, Mill Creek, La Canada Flintridge,
Big Pine Mountain, Glendale, Meiners Oaks, Oat Mountain, Chatsworth,
Wrightwood, Acton, Topatopa Mountains, Montecito Hills, Newhall,
Gorman, Pomona, San Gabriel, Woodland Hills, Santa Clarita, Burbank,
Fillmore, Pasadena, Simi Valley, Van Nuys, Rose Valley, Pyramid Lake,
San Marcos Pass, and Northridge
1202 AM PDT Tue Aug 25 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT THIS MORNING...

* WHAT...For the Heat Advisory, temperatures up to 98. For the
  Extreme Heat Warning, dangerously hot conditions with temperatures
  up to 112 expected.

* WHERE...A portion of southwest California.

* WHEN...For the Heat Advisory, until 10 AM PDT this morning. For the
  Extreme Heat Warning, from 10 AM this morning to 8 PM PDT Friday.

* 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.

&&

$$

CAZ381>383-260000-
/O.CON.KLOX.XH.W.0006.260825T1700Z-260829T0300Z/
Western Antelope Valley Foothills-Eastern Antelope Valley
Foothills-Antelope Valley-
Including the cities of Lake Los Angeles, Llano, Elizabeth Lake,
Lancaster, Pearblossom, Palmdale, Valyermo, and Lake Palmdale
1202 AM PDT Tue Aug 25 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM PDT FRIDAY...

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

* WHERE...Antelope Valley, Eastern Antelope Valley Foothills, and
  Western Antelope Valley Foothills.

* WHEN...From 10 AM this morning to 8 PM PDT Friday.

* 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.

&&

$$

CAZ342>345-260000-
/O.CON.KLOX.HT.Y.0014.260825T1700Z-260829T0300Z/
Santa Lucia Mountains-Southern Salinas Valley-San Luis Obispo
County Interior Valleys-San Luis Obispo County Mountains-
Including the cities of Santa Margarita Lake, Irish Hills, San
Miguel, Atascadero, Creston, Caliente Range, Lake Nacimiento, La
Panza Range, Templeton, Paso Robles, Carrizo Plain, Hearst Castle,
and Shandon
1202 AM PDT Tue Aug 25 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
PDT FRIDAY...

* WHAT...Temperatures up to 108 expected.

* WHERE...San Luis Obispo County Interior Valleys, San Luis Obispo
  County Mountains, Santa Lucia Mountains, and Southern Salinas
  Valley.

* WHEN...From 10 AM this morning to 8 PM PDT Friday.

* 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.

&&

$$

CAZ341-347-348-260000-
/O.CON.KLOX.HT.Y.0015.260826T1700Z-260828T0300Z/
San Luis Obispo County Inland Central Coast-Santa Barbara County
Inland Central Coast-Santa Ynez Valley-
Including the cities of Los Olivos, Lake Cachuma, San Luis Obispo,
Lopez Lake, Solvang, Santa Ynez, Santa Maria, Buellton, and Nipomo
1202 AM PDT Tue Aug 25 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
THURSDAY...

* WHAT...Temperatures up to 100 expected.

* WHERE...San Luis Obispo County Inland Central Coast, Santa Barbara
  County Inland Central Coast, and Santa Ynez Valley.

* WHEN...From 10 AM Wednesday to 8 PM PDT Thursday.

* 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.

&&

$$

ASR