Excessive Heat in Southeast Yuma County, Arizona

Excessive Heat August 26, 2023 – August 30, 2023 · Southeast Yuma County, Arizona

The wider storm

A strong upper level ridge of high pressure over the Great Plains retrograded westward to the western United States, leading to excessive heat conditions across the region. High temperatures observed at Phoenix Sky Harbor for the end of the month reached between 109-117 degrees with record highs in Phoenix set on the 27-29th. According to the Maricopa County Department of Public Health, there were 35 heat-associated fatalities that occurred during this time.

Source: NOAA Storm Events Database, event 1218155. Narratives are written by the National Weather Service forecast office that issued the report.

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