Excessive Heat in Northwest Valley, Arizona

Excessive Heat August 3, 2021 – August 4, 2021 · Northwest Valley, Arizona

The wider storm

A strong ridge of high pressure over the Desert Southwest resulted in excessive heat conditions as temperatures climbed well above normal. The hottest day in Phoenix occurred on the 4th with a high of 115 degrees. According to the Maricopa County Department of Public Health, 25 heat-associated fatalities occurred during this event.

Source: NOAA Storm Events Database, event 1072040. Narratives are written by the National Weather Service forecast office that issued the report.

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