Heat Advisory California | Effective 03/12/2026 21:32

Headline: 
Heat Advisory issued March 12 at 9:32PM PDT until March 13 at 8:00PM PDT by NWS San Diego CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
March 12, 2026 - 9:32pm
Expires: 
March 13, 2026 - 7:15am
Description: 
* WHAT...High temperatures from the lower to mid 80s near the coast and lower to mid 90s for the valleys and inland Orange County expected. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, and San Diego County Valleys. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Very warm temperatures are expected to continue into the weekend and beyond. Elevated overnight lows will limit overnight relief from the heat.
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: 
San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Orange County Coastal; Orange County Inland
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov