Extreme Heat Warning
Status
Event Continued Active alertStart Time
Wed 03/18/2026 04:06 PM EDTEnd Time
Fri 03/20/2026 11:00 PM EDTSignificance
WarningImpacts
High impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 106 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY... * WHAT...Dangerously hot conditions with temperatures between 96 and 104 expected. * WHERE...A portion of southwest California. * WHEN...Until 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
CAZ088-356>358-368>376-378>380-548-210300- /O.CON.KLOX.XH.W.0001.000000T0000Z-260321T0300Z/ Santa Clarita Valley-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 Matilija, Universal City, Newhall, Santa Clarita, Woodland Hills, Acton, Malibu Lake, Moorpark, Culver City, Rose Valley, San Gabriel, Westlake Village, Van Nuys, Pyramid Lake, Chatsworth, Mill Creek, Compton, Malibu Bowl, Burbank, El Monte, Beverly Hills, Pasadena, Norwalk, Santa Paula, Meiners Oaks, Topanga, Ojai, Topatopa Mountains, Thousand Oaks, Downey, The Angeles Crest Highway, Valencia, Sunland, Gorman, Mount Baldy, Fillmore, Newbury Park, Simi Valley, La Canada Flintridge, Lake Castaic, Piru, Northridge, Oat Mountain, Tejon Pass, Mount Wilson, Warm Springs, Wrightwood, Glendale, Hollywood, East Los Angeles, Pomona, and Oak View 106 PM PDT Wed Mar 18 2026
