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Excessive Heat in Upper Santa Cruz River and Altar Valleys, Arizona
Excessive Heat September 4, 2020 · Upper Santa Cruz River and Altar Valleys, Arizona
What the National Weather Service wrote
Hot temperatures 12 to 14 degrees above normal occurred in southeast Pima County and Santa Cruz County, causing the High Heat Risk category to be reached September 4. Record high temperatures were set at Sasabe (105) and Nogales Airport (104). The Pima County Medical Examiner confirmed that heat was the primary cause of death for one male near Keystone Peak about 10 miles west of Green Valley.
The wider storm
Very hot temperatures were experienced in the lower elevations of southeast Arizona from September 4th-7th. Many locations approached or exceeded 110 degrees and set new daily record high temperatures. The Pima County Medical Examiner confirmed that heat was the primary cause of death for five individuals found in the desert in Pima and Cochise counties during the period.
Source: NOAA Storm Events Database, event 919384. Narratives are written by the National Weather Service forecast office that issued the report.
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