Very hot temperatures were observed across southeast Arizona September 9 and 10. High temperatures were 10 to 14 degrees above normal causing the Major Heat Risk categories to be reached. A total of four heat-related fatalities were reported by the Pima County Medical Examiner.

Excessive Heat in WESTERN PIMA COUNTY, ARIZONA
From 09-SEP-23 10:00:00 to 10-SEP-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures of 10 to 14 degrees above normal caused the Major Heat Risk category to be reached across western Pima and southeast Pinal counties September 9-10. Record highs at Ajo were 115 and 113 degrees, respectively. Record highs at Organ Pipe Cactus National Monument were 111 degrees on both days. Record highs at Picacho Peak were 109 and 110 degrees and records at San Manuel were 101 and 106 degrees.

Excessive Heat in SOUTH CENTRAL PINAL COUNTY, ARIZONA
From 09-SEP-23 10:00:00 to 10-SEP-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures of 10 to 14 degrees above normal caused the Major Heat Risk category to be reached across western Pima and southeast Pinal counties September 9-10. Record highs at Ajo were 115 and 113 degrees, respectively. Record highs at Organ Pipe Cactus National Monument were 111 degrees on both days. Record highs at Picacho Peak were 109 and 110 degrees and records at San Manuel were 101 and 106 degrees.

Excessive Heat in SOUTHEAST PINAL COUNTY, ARIZONA
From 09-SEP-23 10:00:00 to 10-SEP-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures of 10 to 14 degrees above normal caused the Major Heat Risk category to be reached across western Pima and southeast Pinal counties September 9-10. Record highs at Ajo were 115 and 113 degrees, respectively. Record highs at Organ Pipe Cactus National Monument were 111 degrees on both days. Record highs at Picacho Peak were 109 and 110 degrees and records at San Manuel were 101 and 106 degrees.

Excessive Heat in TOHONO O ODHAM NATION, ARIZONA
From 09-SEP-23 10:00:00 to 10-SEP-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Very hot temperatures of 10 to 14 degrees above normal caused the Major Heat Risk category to be reached across the Tohono O'odham Nation September 9-10. Record highs at Sells were 110 and 109 degrees, respectively. The Pima County Medical Examiner determined that heat was the primary cause of death for three individuals found in the desert on the 9th in the Santa Rosa, Topawa and San Ignacio areas.

Excessive Heat in TUCSON METRO AREA, ARIZONA
From 09-SEP-23 10:00:00 to 10-SEP-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Very hot temperatures around 10 degrees above normal caused the Major Heat Risk category to be reached across the Tucson Metro area September 9-10. Record highs at Tucson International Airport were 108 and 111 degrees, respectively. The Pima County Medical Examiner determined that heat was a contributing factor in the death an elderly individual in their Tucson back yard. Heart disease was a complicating factor in this fatality.