Excessive Heat — San Bernardino and Riverside County Valleys - the Inland Empire, California

2007-09-01 to 2007-09-03 · San Bernardino and Riverside County Valleys - the Inland Empire, California

Wider weather episode

Strong high pressure and easterly flow brought hot, humid weather to much of Southern California. Temperatures exceeded 95 along the coast and in the mountains, 105 in the Orange and San Diego County valleys, 110 in the Inland Empire and high deserts, and 115 in the lower deserts. Humidity levels were quite high for the region, especially in the lower deserts where periodic gulf surges would raise the dewpoint into the 70s. At least 6 people died of heat related causes within the CWA, however the actual number of deaths is probably higher than indicated.

Source: NOAA Storm Events Database, event_id 60733. Narrative written by the NWS forecast office that issued the report.