Heat Advisory
Status
Event Continued Active alertStart Time
Wed 07/22/2026 01:00 PM EDTEnd Time
Mon 07/27/2026 11:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1233 PM PDT Tue Jul 21 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT MONDAY... * WHAT...Hot daytime conditions with high temperatures between 97 and 107 common. Warm overnight conditions will bring less relief than usual. * WHERE...Valleys and mountains of Los Angeles, Ventura, Santa Barbara, and San Luis Obispo Counties. * WHEN...From 10 AM Wednesday to 8 PM PDT Monday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. 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. Limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Technical Header
CAZ038-088-342>345-348-352-353-356>358-369>382-548-220745- /O.CON.KLOX.HT.Y.0010.260722T1700Z-260728T0300Z/ Cuyama Valley-Santa Clarita Valley-Santa Lucia Mountains-Southern Salinas Valley-San Luis Obispo County Interior Valleys-San Luis Obispo County Mountains-Santa Ynez Valley-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- Northern Ventura County Mountains-Interstate 5 Corridor-Western San Gabriel Mountains and Highway 14 Corridor-Eastern San Gabriel Mountains-Western Antelope Valley Foothills-Eastern Antelope Valley Foothills-Los Angeles County San Gabriel Valley- Including the cities of Mount Wilson, Creston, Ozena, Northridge, La Canada Flintridge, Mount Pinos, Montecito Hills, Valencia, Santa Clarita, Acton, Ojai, Lake Nacimiento, Lake Castaic, Shandon, Oak View, San Rafael Mountain, Thousand Oaks, Mount Baldy, Topanga, Fillmore, Universal City, East Los Angeles, Paso Robles, Solvang, Woodland Hills, Pearblossom, Llano, Lake Palmdale, Oat Mountain, San Miguel, San Gabriel, Meiners Oaks, Elizabeth Lake, Newhall, Simi Valley, Rose Valley, Lockwood Valley, Matilija, The Angeles Crest Highway, Atascadero, Santa Paula, Templeton, Carrizo Plain, La Panza Range, Westlake Village, Van Nuys, Topatopa Mountains, Wrightwood, Piru, New Cuyama, Malibu Lake, Los Olivos, Figueroa Mountain, Hearst Castle, Malibu Bowl, Newbury Park, Burbank, Tejon Pass, Lake Cachuma, Warm Springs, Gorman, Valyermo, Moorpark, Big Pine Mountain, Glendale, Mill Creek, Pasadena, Pomona, Irish Hills, Santa Ynez, Chatsworth, El Monte, Caliente Range, Santa Margarita Lake, Sunland, and Pyramid Lake 1233 PM PDT Tue Jul 21 2026
