Abundant moisture (PWATs 1.75-2.00 inches) and instability (MLCAPE 1000+ J/KG) combined with an approaching upper-level trough to result in an environment favorable for strong convective activity. Thunderstorms first developed across the Mogollon Rim and White Mountains during the early to mid afternoon hours and then slowly drifted southwestward towards south-central Arizona. Activity affected portions of Gila County, where significant water flow was observed along the Russell Gulch area. Additional activity moved from the higher terrain down into western portions of the Phoenix metro during the early evening hours, where damaging winds and blowing dust were observed.

Flash Flood in GILA, ARIZONA
From 07-AUG-22 16:40:00 to 07-AUG-22 17:40:00 (MST-7)
Location: LITTLE ACRES
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A webcam showed Russell Gulch experiencing a flash flood of at least a few feet high. No damages or injuries were reported.

Dust Storm in NORTHWEST VALLEY, ARIZONA
From 07-AUG-22 20:49:00 to 07-AUG-22 20:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility less than 1/4 mile along Loop 303 just south of Surprise in blowing dust from thunderstorm outflow. No accidents or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 21:15:00 to 07-AUG-22 21:15:00 (MST-7)
Location: BUCKEYE MUNI ARPT
Magnitude: 67.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two semis flipped on I-10 westbound in Buckeye, just west of SR-85, causing both lanes to be temporarily blocked. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 19:38:00 to 07-AUG-22 19:38:00 (MST-7)
Location: WITTMANN
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Power poles were down in the area between Happy Valley Rd and Deer Valley Rd and between 225th Ave and US-60 in Surprise. Timing estimated from radar. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 19:38:00 to 07-AUG-22 19:38:00 (MST-7)
Location: BEARDSLEY
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Utility Company

Power poles were down near the intersection of Frontier Drive and 151st Avenue. Timing estimated from radar. No injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 07-AUG-22 20:20:00 to 07-AUG-22 21:40:00 (MST-7)
Location: BEARDSLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Surprise Emergency Manager said there was significant flash flooding in the Asante Community, with evidence of water over the roads. The Emergency Manager also shared there was significant mud and runoff at a water treatment plant near 29 Palms RV Park. On social media there were several reports of at least minor street flooding around the area as well. Timing of impacts estimated from radar. No reports of damage or injuries from flooding.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 19:40:00 to 07-AUG-22 19:40:00 (MST-7)
Location: WADDELL
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous reports of downed trees, including some falling on vehicles, across the Surprise Farms Neighborhood in Surprise. Some of the areas that saw the downed trees include 175th Ave and Greenway, Bell Road near Loop 303, and in the intersection of West Sierra Montana Loop and North Verde Vista Drive. Timing estimated from radar. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 21:15:00 to 07-AUG-22 21:15:00 (MST-7)
Location: BUCKEYE MUNI ARPT
Magnitude: 67.00 MG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: AWOS

A 77 mph wind gust was measured at the Buckeye Municipal Airport. Triple G Dairy Farm, just to the south of the airport, experienced a lot of damage, including shattered windows from flying debris or hail, a few downed power poles, uprooted trees, metal roof partially torn off one building, and at least minor damage to nearby homes owned by dairy workers. A month after the storm, NWS Phoenix was contacted by a claims specialist looking into a hangar door that was blown off at the airport. Although unconfirmed, this storm, with the 77 mph gust, is the most probable cause of the hangar door damage. Estimated damage costs for the hangar door are applied to this event. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 07-AUG-22 21:15:00 to 07-AUG-22 21:15:00 (MST-7)
Location: BUCKEYE
Magnitude: 67.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local broadcast showed footage of significant damage in the Buckeye area, including roofs partially torn off and a destroyed RV. No other specific details were received. No injuries were reported.