Headline:
Extreme Heat Watch issued August 23 at 9:40PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Event:
Extreme Heat Watch
Urgency:
Future
Effective:
August 23, 2026 - 9:40pm
Expires:
August 24, 2026 - 6:15am
Description:
* WHAT...Temperatures in the mid to upper 90s below 5000 ft MSL.
* WHERE...San Bernardino County Mountains.
* WHEN...For the Heat Advisory, until 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. 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.
Area Description:
San Bernardino County Mountains
Forcast Office:
NWS San Diego CA
Sender:
w-nws.webmaster@noaa.gov