Excessive Heat — Riverside County Mountains, California

2023-07-01 to 2023-07-03 · Riverside County Mountains, California

Event narrative

A heat wave impacted the Riverside County Mountains starting on July 1st and lasting through the 3rd. Highs at locations below 6000 FT MSL generally ranged from the upper 80s to upper 90s each day. A Heat Advisory was in effect for these days.

Wider weather episode

Strong high pressure over the southwestern US led to increasing heat over Southern California in early July. High heat occurred each afternoon July 1st, 2nd, and 3rd, after which temperatures slowly cooled down.

Source: NOAA Storm Events Database, event_id 1120912. Narrative written by the NWS forecast office that issued the report.