Excessive Heat — San Bernardino County-upper Colorado River Valley, California
2021-09-12 to 2021-09-13 · San Bernardino County-upper Colorado River Valley, California
Event narrative
Excessive Heat Warning criteria were reached two days in a row.
Wider weather episode
High pressure brought two days of excessive heat to the Colorado River Valley.
Source: NOAA Storm Events Database, event_id 984983. Narrative written by the NWS forecast office that issued the report.