Heat — San Diego County Valleys, California

2017-06-17 · San Diego County Valleys, California

Event narrative

Eight people suffered heat related illnesses hiking Three Sister Trail, 2 had to be airlifted to the hospital, and a third was transported to the hospital via ambulance. The high temperature in the nearby town of Ramona was 95 degrees.

Wider weather episode

A strong ridge of high pressure and a dry airmass helped temperatures sore in inland areas from the 16th through the 27th. The heat was most intense in the deserts on the 20th, 24th, and 25th with Palm Springs reaching 122 degrees on all three days. Temperatures peaked in the 100-110 degree range over the San Diego County Valleys and Inland Empire on the 20th, 24th and 25th. Flex Alerts were issued asking customers to conserve power.

Source: NOAA Storm Events Database, event_id 708113. Narrative written by the NWS forecast office that issued the report.