California Severe Extreme Heat Watch | Effective 08/22/2026 14:25

Headline: 
Extreme Heat Watch issued August 22 at 2:25PM PDT until August 28 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
August 22, 2026 - 2:25pm
Expires: 
August 25, 2026 - 10:00am
Description: 
* WHAT...For the Heat Advisory, temperatures up to 107 expected. For the Extreme Heat Watch, dangerously hot conditions with temperatures up to 112 possible. * WHERE...A portion of southwest California. * WHEN...For the Heat Advisory, from 10 AM Sunday to 10 AM PDT Tuesday. For the Extreme Heat Watch, from Tuesday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
Santa Clarita Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; 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; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley
Forcast Office: 
NWS Los Angeles/Oxnard CA
Sender: 
w-nws.webmaster@noaa.gov