Weather Alert: Heat Advisory issued August 18 at 11:56AM PDT until August 20 at 8:00PM PDT by NWS San Diego CA
Alert
- Severity: Moderate
- Urgency: Expected
- Area: San Bernardino and Riverside County Valleys-The Inland Empire
- Effective: 2026-08-18T11:56:00-07:00
- Ends: 2026-08-20T20:00:00-07:00
* WHAT…Temperatures up to 105 expected. * WHERE…San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN…From 10 AM Wednesday to 8 PM PDT Thursday. * 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
Every civic claim above is drawn from these records. Follow any one to the primary document and check it.
- api.weather.govhttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.306e53865633c55bf7503a8fc22e7c569b557150.001.1
Tier A — rendered from structured data, no model involved.