California Moderate Heat Advisory | Effective 09/11/2026 02:30

Headline: 
Heat Advisory issued September 11 at 2:30AM PDT until September 11 at 8:00PM PDT by NWS San Diego CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
September 11, 2026 - 2:30am
Expires: 
September 11, 2026 - 8:00pm
Description: 
* WHAT...High temperatures in the 90s to around 100 expected. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.
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 Inland Valleys
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov