# Heat Advisory: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/f5e89f157e72268f

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-20 21:26 ingested 2026-07-21 08:27

[original source ↗](http://www.weather.gov/)

## extract

Heat Advisory — San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains
Severity: Moderate. Certainty: Likely.
* WHAT...High temperatures in the mid 80s to 90s expected below 6000
ft. Low temperatures in the upper 60s to mid 70s.

* WHERE...Riverside County Mountains, San Bernardino County
Mountains, and San Diego County Mountains.

* WHEN...From 10 AM Wednesday to 8 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...Widespread moderate 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The historical document was shared with another weather alert and cannot be attributed to this record.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.