Heat — S Sierra Foothills, California

2017-06-18 to 2017-06-23 · S Sierra Foothills, California

Event narrative

High temperatures were generally between 105 and 110 degrees between June 18 and June 23.

Wider weather episode

A large area of high pressure began to build north and west into central California on June 13 and strengthened over the area through June 17 with temperatures rising to well above seasonal normals. This led to a heat wave which resulted in high temperatures often exceeding 105 degrees across much of the San Joaquin Valley between June 18 and June 25 and exceeding 110 degrees across the Kern County Deserts. Excessive Heat Warnings were posted for these areas as well as for the southern Sierra foothills and the Kern County Mountains where temperatures were much above normal for much of this period.

Source: NOAA Storm Events Database, event_id 708249. Narrative written by the NWS forecast office that issued the report.