Weather Alert: Heat Advisory issued August 21 at 12:23PM PDT until August 24 at 8:00PM PDT by NWS San Diego CA
Alert
- Severity: Moderate
- Urgency: Expected
- Area: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
- Effective: 2026-08-21T12:23:00-07:00
- Ends: 2026-08-24T20:00:00-07:00
* WHAT…Temperatures 90 to 97 for Inland Orange County, 90 to 102 for inland San Diego County, 98 to 106 for the Inland Empire and 89 to 99 in the mountains. * WHERE…Orange County Inland Areas, Riverside County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Mountains, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN…From 10 AM Saturday to 8 PM PDT Monday. * IMPACTS…Hot temperatures may cause heat illnesses.
Official alert data (National Weather Service)
Generated from public records with automated review; see sources linked above. Corrections: see About page.
Inspection record1 source
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- api.weather.govhttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.115d72a2778b029f0a81c0d5b2d685ba1e0d49ea.002.1
Tier A — rendered from structured data, no model involved.