Extreme Heat Watch California | Effective 03/13/2026 19:59

Headline: 
Extreme Heat Watch issued March 13 at 7:59PM PDT until March 20 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
March 13, 2026 - 7:59pm
Expires: 
March 14, 2026 - 3:00pm
Description: 
* WHAT...Dangerously hot conditions with temperatures up to 100 possible. * WHERE...A portion of southwest California. * WHEN...From Monday morning through Friday evening. * IMPACTS...Long duration summer-like heat wave will lead to increased risk of heat illness, especially for vulnerable people such as the young and old and those without cooling systems. * ADDITIONAL DETAILS...Take steps now to ensure you have a heat plan for you and your community.
Instruction: 
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.
Area Description: 
Santa Clarita Valley; San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; 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
Forcast Office: 
NWS Los Angeles/Oxnard CA
Sender: 
w-nws.webmaster@noaa.gov