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 Montecito Hills, Malibu Lake, San Rafael
Mountain, Tejon Pass, Lake Castaic, Newhall, Mount Baldy, Oak View,
Piru, La Canada Flintridge, Gorman, Topatopa Mountains, Simi Valley,
San Gabriel, Valencia, San Marcos Pass, Chatsworth, Burbank,
Universal City, Matilija, The Angeles Crest Highway, Rose Valley,
Wrightwood, Pyramid Lake, Sunland, El Monte, Figueroa Mountain,
Woodland Hills, Newbury Park, Northridge, Ojai, Moorpark, Malibu
Bowl, Topanga, Santa Clarita, Mount Wilson, Acton, Pomona, Meiners
Oaks, Thousand Oaks, Oat Mountain, Westlake Village, Fillmore, Santa
Paula, Van Nuys, Pasadena, Mill Creek, Big Pine Mountain, Glendale,
East Los Angeles, and Warm Springs
1244 PM PDT Mon Aug 24 2026
...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT
FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY...
* 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 Tuesday. For the
Extreme Heat Warning, from 10 AM Tuesday 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.
