Extreme Heat Warning issued August 27 at 9:05PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA · BASE INTEL
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Extreme Heat Warning issued August 27 at 9:05PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
* WHAT...Dangerously hot conditions with high temperatures in the
upper 90s in the western valleys to around 103 in the inland
valleys expected. Low temperatures will be mostly in the 70s.
* WHERE...San Diego County Valleys.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degre
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Extreme Heat Warning issued August 27 at 9:05PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Event: Extreme Heat Warning
Area: San Diego County Inland Valleys
Severity: Severe
Urgency: Expected
Certainty: Likely
Effective: 2026-08-28T04:05:00.000Z
Expires: 2026-08-28T06:15:00-07:00
* WHAT...Dangerously hot conditions with high temperatures in the
upper 90s in the western valleys to around 103 in the inland
valleys expected. Low temperatures will be mostly in the 70s.
* WHERE...San Diego County Valleys.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit overnight 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.
Original source: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f6ea879bc9040d6f5928c6f4c995234bab34ec43.002.1
* WHAT...Dangerously hot conditions with high temperatures in the mid
90s to 102 expected. Low temperatures will be mostly in the 70s.
* WHERE...Orange County Inland Areas.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit overnight relief from the
* WHAT...Dangerously hot conditions with high temperatures in the mid
90s to 103 expected.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit overnight relief from the heat and will increase the
threat of
* WHAT...Dangerously hot conditions with high temperatures in the
upper 90s to 105 expected.
* WHERE...Apple and Lucerne Valleys.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit overnight relief from the heat and will increase the
threat of heat-
* WHAT...Dangerously hot conditions with high temperatures from 100
to 108 expected. Overnight low temperatures will be mostly in the
70s.
* WHERE...San Bernardino and Riverside County Valleys-The Inland
Empire.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above norm
* WHAT...Dangerously hot conditions with high temperatures in the mid
90s to 102 expected.
* WHERE...San Diego County Mountains.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 10 to 15 degrees above normal
will limit overnight relief from the heat and will increase the
threat of heat-
* WHAT...Dangerously hot conditions with high temperatures of 112 to
114 expected. Low temperatures will be mostly in the mid 80s to mid
90s.
* WHERE...Coachella Valley, San Diego County Deserts, and San
Gorgonio Pass near Banning.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Overnight temperatures