Heat — Santa Ana Mountains and Foothills, California

2023-10-04 to 2023-10-08 · Santa Ana Mountains and Foothills, California

Event narrative

High temperatures across the Santa Ana Mountains on October 4th through the 8th were notably hotter than seasonal normal. Highs were routinely in the upper 80s to lower 90s. The hottest day was October 5th when El Cariso hit 91 degrees for a high.

Wider weather episode

High pressure aloft combined with the first Santa Ana wind event of the season to drive high temperatures across Southern California much higher than seasonal normals.

Source: NOAA Storm Events Database, event_id 1144417. Narrative written by the NWS forecast office that issued the report.