Very hot temperatures were experienced west and south of Tucson September 11 through 14. The hottest two days were the 12th and 13th when high temperatures fell just shy of records across much of Pima County and topped out between 104 and 109 degrees. During the four day period, the Pima County Medical Examiner confirmed that heat was the primary cause of death for seven individuals found in the desert, one at Organ Pipe Cactus National Monument, five on the Tohono O'odham Nation, and one in Santa Cruz County.

Heat in TOHONO O ODHAM NATION, ARIZONA
From 14-SEP-21 10:00:00 to 14-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hot temperatures 3 to 5 degrees above normal, around 105 degrees, were experienced across the western and central Pima County causing the Moderate Heat Risk category to be reached on September 14. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two males found in the desert, one on the eastern edge of the Organ Pipe Cactus National Monument and another on the Tohono O'odham Nation northwest of Kohatk.

Heat in WESTERN PIMA COUNTY, ARIZONA
From 14-SEP-21 10:00:00 to 14-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hot temperatures 3 to 5 degrees above normal, around 105 degrees, were experienced across the western and central Pima County causing the Moderate Heat Risk category to be reached on September 14. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two males found in the desert, one on the eastern edge of the Organ Pipe Cactus National Monument and another on the Tohono O'odham Nation northwest of Kohatk.

Excessive Heat in WESTERN PIMA COUNTY, ARIZONA
From 12-SEP-21 10:00:00 to 13-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot high temperatures of 105 to 109 degrees, or 5 to 10 degrees above normal, occurred in the lower deserts of western Pima County and the Tohono O'odham Nation September 12-13, and caused the High Heat Risk category to be reached. While temperatures fell just shy of records, the Pima County Medical Examiner confirmed that heat was the primary cause of death for three persons found in the desert on the Tohono O'odham Nation.

Heat in UPPER SANTA CRUZ RIVER AND ALTAR VALLEYS, ARIZONA
From 12-SEP-21 10:00:00 to 12-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hot temperatures 4 to 6 degrees above normal, in the upper 90s, were experienced in the lower elevations of Santa Cruz County causing the Moderate Heat Risk category to be reached on September 12. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one male found in the desert near Amado.

Excessive Heat in TOHONO O ODHAM NATION, ARIZONA
From 12-SEP-21 10:00:00 to 13-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot high temperatures of 105 to 109 degrees, or 5 to 10 degrees above normal, occurred in the lower deserts of western Pima County and the Tohono O'odham Nation September 12-13, and caused the High Heat Risk category to be reached. While temperatures fell just shy of records, the Pima County Medical Examiner confirmed that heat was the primary cause of death for three persons found in the desert on the Tohono O'odham Nation, one female north of San Simon on the 12th, another female southwest of Vamori and one male west of Cowlic on the 13th.

Heat in TOHONO O ODHAM NATION, ARIZONA
From 11-SEP-21 10:00:00 to 11-SEP-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hot temperatures 3 to 5 degrees above normal, around 105 degrees, were experienced across the Tohono O'odham Nation causing the Moderate Heat Risk category to be reached on September 11. The Pima County Medical Examiner confirmed that heat was the primary cause of death for one female found in the desert west of Vamori.