Heat Advisory
Status
New Event Active alertStart Time
Wed 07/22/2026 01:00 PM EDTEnd Time
Wed 07/22/2026 11:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1226 PM PDT Mon Jul 20 2026 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM PDT WEDNESDAY... ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH MONDAY EVENING... * WHAT...For the Heat Advisory, temperatures between 93 to 103 expected. For the Extreme Heat Watch, dangerously hot conditions with temperatures between 97 and 107 possible. * WHERE...A portion of southwest California. * WHEN...For the Heat Advisory, from 10 AM to 8 PM PDT Wednesday. For the Extreme Heat Watch, from Wednesday evening through Monday evening. * 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. There is a high risk for heat illness for sensitive populations including 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.
Technical Header
CAZ088-356>358-369>382-548-212100- /O.NEW.KLOX.HT.Y.0010.260722T1700Z-260723T0300Z/ /O.NEW.KLOX.XH.A.0004.260723T0300Z-260728T0300Z/ Santa Clarita Valley-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 Oak View, Pasadena, Mount Baldy, Tejon Pass, Woodland Hills, Sunland, Simi Valley, Burbank, Westlake Village, Elizabeth Lake, Lake Palmdale, Mount Wilson, Llano, Ojai, Topanga, Universal City, Gorman, Newbury Park, Warm Springs, Malibu Lake, Oat Mountain, Rose Valley, Pyramid Lake, Santa Clarita, Valencia, La Canada Flintridge, East Los Angeles, Thousand Oaks, Chatsworth, Topatopa Mountains, Santa Paula, Wrightwood, Fillmore, Pomona, Valyermo, Meiners Oaks, Newhall, Malibu Bowl, The Angeles Crest Highway, Lake Castaic, Moorpark, San Gabriel, Northridge, Lockwood Valley, Van Nuys, Piru, Mount Pinos, Pearblossom, El Monte, Acton, Matilija, Ozena, Mill Creek, and Glendale 1226 PM PDT Mon Jul 20 2026
