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Extreme Heat Warning

Status

Event Continued Active alert

Start Time

Sat 08/23/2025 04:52 AM EDT

End Time

Mon 08/25/2025 12:00 AM EDT

Significance

Warning

Impacts

High impact

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 152 AM PDT Sat Aug 23 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SUNDAY... * WHAT...Dangerously hot daytime conditions with high temperatures of 95 to 105 degrees expected, and warm overnight conditions. * WHERE...A portion of southwest California. * WHEN...Until 9 PM PDT Sunday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. Monitor the latest forecasts and warnings for updates.

Technical Header

CAZ038-088-342>345-348-353-369-371>383-548-232100- /O.CON.KLOX.XH.W.0002.000000T0000Z-250825T0400Z/ 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 Barbara County Interior Mountains-Western 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-Antelope Valley-Los Angeles County San Gabriel Valley- Including the cities of El Monte, Universal City, Woodland Hills, Moorpark, Elizabeth Lake, Santa Clarita, Oat Mountain, Santa Ynez, Thousand Oaks, Pyramid Lake, Valyermo, Mount Pinos, Mount Baldy, Lancaster, Gorman, Newhall, Los Olivos, Acton, Llano, Pasadena, Big Pine Mountain, Chatsworth, Creston, Lake Nacimiento, San Miguel, The Angeles Crest Highway, Pearblossom, Northridge, Lake Castaic, Santa Margarita Lake, Hearst Castle, Palmdale, Figueroa Mountain, Rose Valley, Valencia, Glendale, Mill Creek, Simi Valley, Mount Wilson, Wrightwood, Atascadero, Paso Robles, East Los Angeles, Matilija, Carrizo Plain, La Canada Flintridge, Ozena, Van Nuys, La Panza Range, Lockwood Valley, San Rafael Mountain, Malibu Bowl, Burbank, Newbury Park, Tejon Pass, Shandon, Lake Cachuma, Lake Palmdale, Westlake Village, San Gabriel, New Cuyama, Topatopa Mountains, Sunland, Pomona, Templeton, Caliente Range, Solvang, Irish Hills, Lake Los Angeles, Warm Springs, and Malibu Lake 152 AM PDT Sat Aug 23 2025