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Heat in San Diego County Valleys, California
Heat July 7, 2017 – July 8, 2017 · San Diego County Valleys, California
What the National Weather Service wrote
Three Sisters Trail in San Diego County was closed due to heat on the 7th and 8th. The trail reopened on the 9th, and four hikers with heat related illnesses were rescued. The high temperature in the nearby town of Ramona was 96 degrees on the 9th. EMS reported 8 calls for heat related illnesses on the 7th and 8th, with 4 hospitalizations.
The wider storm
A strong ridge of high pressure built over the region between the 6th and 9th of July, bringing a heat wave to the valleys, deserts, and mountains. The heat wave peaked on the 7th with temperatures of 105-110 degrees in the Inland Empire and 118-122 degrees in the Coachella Valley.
Source: NOAA Storm Events Database, event 714473. Narratives are written by the National Weather Service forecast office that issued the report.
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