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.

Excessive Heat in SOUTH CENTRAL PINAL COUNTY, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Excessive Heat in SOUTHEAST PINAL COUNTY, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Heat in EASTERN COCHISE COUNTY BELOW 5000 FEET, ARIZONA
From 04-SEP-20 10:00:00 to 04-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hot temperatures 6 to 9 degrees above normal occurred in southeast Cochise County, causing the Moderate Heat Risk category to be reached September 4. A record high temperature of 105 degrees was set at McNeal. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two males near Douglas on the 4th.

Excessive Heat in TOHONO O ODHAM NATION, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Excessive Heat in TUCSON METRO AREA, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Excessive Heat in WESTERN PIMA COUNTY, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Excessive Heat in UPPER GILA RIVER AND ARAVAIPA VALLEYS, ARIZONA
From 04-SEP-20 10:00:00 to 07-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Very hot temperatures 10 to 13 degrees above normal occurred in the lower elevations of southeast Arizona, causing the High Heat Risk category to be reached September 4 through September 7. Record high temperatures were tied or set at most locations on multiple days during the period. The hottest record temperatures during this stretch were 115 degrees at Ajo on September 6; 114 at Ajo on the 4th and 5th, and at Picacho on the 5th; 113 at Picacho on the 6th; and 112 at Picacho and Sells on the 4th; 110 at Tucson International Airport on the 4th; 109 at Green Valley on the 4th and 5th; and 107 at Fort Thomas on the 5th, and at Safford Airport on the 7th. The Pima County Medical Examiner confirmed that heat was the primary cause of death for two individuals on the Tohono O'odham Nation--a female east of Sells on the 4th and a male north of Hickiwan on the 6th.

Excessive Heat in UPPER SANTA CRUZ RIVER AND ALTAR VALLEYS, ARIZONA
From 04-SEP-20 10:00:00 to 04-SEP-20 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

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.