Heat Advisory: San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland

source: us-gov-api (us-gov-api:noaa-weather)published 2026-07-20 21:26ingested 2026-07-21 08:27

extract

Heat Advisory — San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Inland Severity: Moderate. Certainty: Likely. * WHAT...High temperatures 90 to 100 degrees expected. Low temperatures in the upper 60s to low 70s. * WHERE...Orange County Inland Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN...From 10 AM Wednesday to 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Widespread moderate HeatRisk with localized major HeatRisk. Elevated low temperatures will limit overnight relief from the heat.

retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.