Excessive Heat in West Side Mountains North of Highway 198, California

Daytime highs generally ranged between 104 and 109 degrees each day between August 4 and August 6 and between 107 and 112 degrees on August 7.

A large area of high pressure strengthened over the Great Basin between August 4 and 6 bringing a return of dangerous heat to the area. The ridge strengthened further on August 7 resulting in several new daily climatological records being set before a cold front pushed through central California on August 8 which lowered temperatures below dangerous levels at most locations although widespread triple digit heat prevailed across the lower elevations through August 11. An upper trough moved into central California on August 12 lowering temperatures to near normal levels for the middle portion of the month.