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

2021-09-06 to 2021-09-09 · San Bernardino County-upper Colorado River Valley, California

Event narrative

Excessive Heat Warning criteria were reached four days in a row.

Wider weather episode

High pressure over the Desert Southwest brought four days of excessive heat.

Source: NOAA Storm Events Database, event_id 984967. Narrative written by the NWS forecast office that issued the report.