Heat Advisory
Status
Event Continued Active alertStart Time
Mon 03/16/2026 07:47 PM EDTEnd Time
Tue 03/17/2026 01:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Los Angeles, CA ∙ Pasadena, CA ∙ Pomona, CA ∙ Thousand Oaks, CA ∙ Santa Clarita, CA ∙ Glendale, CA ∙ Compton, CA ∙ El Monte, CA ∙ Inglewood, CA ∙ Downey, CAFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 447 PM PDT Mon Mar 16 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY... ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT FRIDAY... * WHAT...For the Heat Advisory, temperatures between 90 and 98 expected. For the Extreme Heat Warning, dangerously hot conditions with temperatures between 96 and 104 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...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors. * ADDITIONAL DETAILS...Warm overnight low temperatures will contribute to the heat risk, especially in the mountain and foothill locations. 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Technical Header
CAZ088-342-345-351>353-356>358-368>376-378>380-548-171630- /O.CON.KLOX.XH.W.0001.260317T1700Z-260321T0300Z/ /O.CON.KLOX.HT.Y.0003.000000T0000Z-260317T1700Z/ Santa Clarita Valley-Santa Lucia Mountains-San Luis Obispo County Mountains-Santa Ynez Mountains Western Range-Santa Ynez Mountains Eastern Range-Santa Barbara County Interior Mountains-Lake Casitas-Ojai Valley-Central Ventura County Valleys-Los Angeles County Inland Coast including Downtown Los Angeles-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 Glendale, East Los Angeles, Wrightwood, Piru, Rose Valley, Matilija, Caliente Range, San Marcos Pass, Culver City, El Monte, Pyramid Lake, Warm Springs, La Canada Flintridge, Malibu Lake, Moorpark, Westlake Village, Burbank, Mount Baldy, Universal City, Figueroa Mountain, Oat Mountain, Lake Castaic, Newbury Park, Compton, Santa Clarita, Ojai, Pasadena, Van Nuys, Mount Wilson, Topatopa Mountains, Thousand Oaks, Norwalk, Simi Valley, San Gabriel, Beverly Hills, Pomona, Santa Margarita Lake, Tejon Pass, Mill Creek, Woodland Hills, The Angeles Crest Highway, Newhall, Gorman, Meiners Oaks, Irish Hills, San Rafael Mountain, Valencia, Northridge, Chatsworth, Big Pine Mountain, Montecito Hills, Topanga, Hollywood, Hearst Castle, Malibu Bowl, Oak View, Fillmore, Santa Paula, Sunland, Downey, La Panza Range, and Acton 447 PM PDT Mon Mar 16 2026
