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Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued October 4 at 11:04AM PDT until October 8

Affecting Catalina and Santa Barbara Islands; Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; 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; Los Angeles County San Gabriel Valley

In effect until: Oct 6, 2026, 12:00 AM

Catalina and Santa Barbara Islands; Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; 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; Los Angeles County San Gabriel Valley

Likely impact; effects through 12:00 AM.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Read the original bulletin (official text)
* WHAT...Dangerously hot conditions with temperatures reaching 90 to
100 at the coast and 106 in the valleys.

* WHERE...Coast and valleys of Los Angeles and Ventura Counties.

* WHEN...Until 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™