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Excessive Heat — San Bernardino County-upper Colorado River Valley, California

2020-08-14 to 2020-08-20 · San Bernardino County-upper Colorado River Valley, California

Event narrative

Excessive Heat Warning criteria were reached for seven straight days.

Wider weather episode

Strong and nearly stationary high pressure aloft led to a week long heat wave which set many record high temperatures in the Mojave Desert.


Source: NOAA Storm Events Database, event_id 911538. Narrative written by the NWS forecast office that issued the report.