Excessive Heat — Upper San Pedro River Valley, Arizona

2024-07-10 · Upper San Pedro River Valley, Arizona

Event narrative

Hot temperatures 7 to 10 degrees above normal were experienced in the Upper San Pedro River Valley on July 10 causing the Major Heat Risk category to be reached.

Wider weather episode

Hot temperatures typically 7 to 11 degrees above normal were experienced across southeast Arizona July 8-12. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals found in the desert, eight in the Tucson area, two in the Safford area and another in Rio Rico. Heat was determined to be a contributing factor in the death of twelve individuals in the Tucson area and another near Sells.

Source: NOAA Storm Events Database, event_id 1194223. Narrative written by the NWS forecast office that issued the report.