California Moderate Heat Advisory | Effective 08/27/2026 00:50

Headline: 
Heat Advisory issued August 27 at 12:50AM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 27, 2026 - 12:50am
Expires: 
August 27, 2026 - 3:30pm
Description: 
* WHAT...High temperatures in the 90s below 6000 feet expected. * WHERE...San Bernardino County Mountains below 6000 feet. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Low temperatures 10 to 15 degrees above normal will limit relief from the heat and will increase the threat of heat-related illness.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Area Description: 
San Bernardino County Mountains
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov