Scattered thunderstorms developed across the Mogollon Rim and International Border during the afternoon and moved west across southeast Arizona through the evening hours. Several storms became severe with damaging winds of 60 to 90 mph that created blowing dust and downed trees and power poles. The most extensive structural damage occurred in the Sierra Vista/Fort Huachuca and Green Valley/Sahuarita areas.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 21:10:00 to 10-JUL-21 21:20:00 (MST-7)
Location: ANEGAM
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds caused minor damage to two homes in Anegam and substantial damage to a home in Comobabi.

Thunderstorm Wind in PINAL, ARIZONA
From 10-JUL-21 20:30:00 to 10-JUL-21 20:30:00 (MST-7)
Location: ELOY
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm winds damaged the roof of a storage building, an awning at a gas station and downed several trees in Eloy.

Dust Storm in TUCSON METRO AREA, ARIZONA
From 10-JUL-21 18:55:00 to 10-JUL-21 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm outflow winds produced widespread blowing dust that reduced visibilities to less than a quarter mile from Green Valley to Marana causing traffic disruptions along Interstates 19 and 10.

Hail in COCHISE, ARIZONA
From 10-JUL-21 16:00:00 to 10-JUL-21 16:00:00 (MST-7)
Location: SIERRA VISTA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in GRAHAM, ARIZONA
From 10-JUL-21 17:15:00 to 10-JUL-21 17:15:00 (MST-7)
Location: ARTESIA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A wind gust to 61 mph was measured in Artesia.

Hail in SANTA CRUZ, ARIZONA
From 10-JUL-21 17:16:00 to 10-JUL-21 17:25:00 (MST-7)
Location: PATAGONIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A slow moving thunderstorm produced several minutes of nickel to quarter size hail near Patagonia.

Hail in COCHISE, ARIZONA
From 10-JUL-21 18:20:00 to 10-JUL-21 18:20:00 (MST-7)
Location: MESCAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SANTA CRUZ, ARIZONA
From 10-JUL-21 18:45:00 to 10-JUL-21 18:45:00 (MST-7)
Location: MADERA CANYON
Magnitude: 68.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Hopkins RAWS, at an elevation of over 7000ft MSL, recorded a wind gust to 78 mph.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 18:55:00 to 10-JUL-21 19:10:00 (MST-7)
Location: CONTINENTAL
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorms winds downed 30 power poles and dozens of trees in Green Valley and Sahuarita. One of the downed trees broke a water main and other blocked streets. Around 10,000 customers were without power into the overnight hours. A CoCoRaHS observer on the southeast side of Green Valley measured a wind gust of 66 mph at 1855MST.

Flash Flood in PIMA, ARIZONA
From 10-JUL-21 22:10:00 to 10-JUL-21 23:00:00 (MST-7)
Location: SABINO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Heavy rain of 2.5 in less than 1 hour at the headwaters of Tanque Verde Creek caused a 1 foot rise in water levels at Tanque Verde Loop Road, resulting in its closure.

Thunderstorm Wind in COCHISE, ARIZONA
From 10-JUL-21 16:48:00 to 10-JUL-21 17:25:00 (MST-7)
Location: CHARLESTON
Magnitude: 79.00 MG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm winds downed 10 power poles in 2 different areas between Tombstone and Huachuca City. A private weather station at Huachuca City measured a gust to 70 mph at 1704MST near the location where the roof of a store was ripped off. A wind gust to 68 mph was measured at Libby Field on Fort Huachuca at 1711MST. Two miles west at the Pioneer Field ASOS, a wind gust to 91 mph was measured at 1721MST.  Near that site, winds destroyed a large reinforced military tent.

Dust Storm in SOUTH CENTRAL PINAL COUNTY, ARIZONA
From 10-JUL-21 20:00:00 to 10-JUL-21 20:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm outflow winds produced widespread blowing dust that reduced visibilities to less than a quarter mile and caused traffic disruptions along Interstate 10 in southern Pinal County.

Dust Storm in TOHONO O ODHAM NATION, ARIZONA
From 10-JUL-21 20:20:00 to 10-JUL-21 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm outflow winds produced widespread blowing dust that reduced visibilities to less than a quarter mile that caused traffic disruptions along Route 15 and Highway 86 on the Tohono O'odham Nation.

Flash Flood in PIMA, ARIZONA
From 10-JUL-21 20:35:00 to 10-JUL-21 21:30:00 (MST-7)
Location: WILLOW CANYON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rain of 2.5 in less than 1 hour at the headwaters of Tanque Verde Creek caused rapid rises of over three feet in Tanque Verde Creek downstream before the channel widens out.

Thunderstorm Wind in GRAHAM, ARIZONA
From 10-JUL-21 16:56:00 to 10-JUL-21 16:56:00 (MST-7)
Location: SAFFORD
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed several trees and power poles in the east part of Safford.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 19:04:00 to 10-JUL-21 20:15:00 (MST-7)
Location: (TUS)TUCSON INTL ARP
Magnitude: 52.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust to 60 mph was recorded at Tucson International Airport at 1904MST. Outflow winds downed trees in midtown Tucson and in Marana.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 19:33:00 to 10-JUL-21 19:43:00 (MST-7)
Location: (DMA)DAVIS MONTHAN A
Magnitude: 66.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm winds downed power poles near Speedway Blvd and Tanque Verde Loop Rd. A private weather station near Escalante and Freeman Roads measured a gust to 76 mph at 1943MST.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 19:45:00 to 10-JUL-21 19:55:00 (MST-7)
Location: (DMA)DAVIS MONTHAN A
Magnitude: 56.00 MG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds downed multiple trees in eastern Tucson. A wind gust to 64 mph was recorded at Davis-Monthan AFB at 1946MST and a gust to 58 mph was recorded at a private weather station near Irvington and Harrison at 1948MST.

Thunderstorm Wind in PIMA, ARIZONA
From 10-JUL-21 21:30:00 to 10-JUL-21 21:30:00 (MST-7)
Location: ALI CHUKSON
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds caused minor damage to a house in Little Tucson on the Tohono O'odham Nation.