Extreme Heat Warning
Status
New Event Active alertStart Time
Tue 03/17/2026 01:00 PM EDTEnd Time
Fri 03/20/2026 11:00 PM EDTSignificance
WarningImpacts
High impact
Locations Affected
Los Angeles, CA ∙ Long Beach, CA ∙ Santa Clarita, CA ∙ Glendale, CA ∙ Pasadena, CA ∙ Pomona, CA ∙ Oxnard, CA ∙ Thousand Oaks, CA ∙ Torrance, CA ∙ Santa Maria, CAFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1155 AM PDT Sun Mar 15 2026 ...HEAT ADVISORY NOW IN EFFECT FROM 10 AM MONDAY TO 10 AM PDT TUESDAY... ...EXTREME HEAT WARNING 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, from 10 AM Monday to 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. 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>380-548-161300- /O.UPG.KLOX.XH.A.0001.260317T0300Z-260321T0300Z/ /O.NEW.KLOX.XH.W.0001.260317T1700Z-260321T0300Z/ /O.EXT.KLOX.HT.Y.0003.260316T1700Z-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 La Panza Range, Oat Mountain, Pyramid Lake, Mill Creek, Burbank, Warm Springs, Universal City, Malibu Lake, San Marcos Pass, El Monte, Big Pine Mountain, Hollywood, Moorpark, Santa Paula, Acton, Irish Hills, Compton, Topatopa Mountains, Van Nuys, Malibu Bowl, Westlake Village, Glendale, Mount Wilson, Mount Baldy, Wrightwood, Pasadena, Northridge, Newhall, Sunland, Matilija, Piru, Ojai, Valencia, The Angeles Crest Highway, Norwalk, Santa Clarita, Santa Margarita Lake, Meiners Oaks, Chatsworth, Montecito Hills, Thousand Oaks, Tejon Pass, Fillmore, Beverly Hills, Downey, Lake Castaic, Woodland Hills, Gorman, Oak View, Caliente Range, Culver City, Simi Valley, Figueroa Mountain, Rose Valley, San Gabriel, Pomona, La Canada Flintridge, Hearst Castle, San Rafael Mountain, Newbury Park, East Los Angeles, and Topanga 1155 AM PDT Sun Mar 15 2026
