Daytime heating combined with divergence aloft associated with an easterly wave near the Arizona/New Mexico border promoted thunderstorm initiation across southeast Arizona during the afternoon of the 30th. Outflow boundaries generated from these thunderstorms raced northwest toward south-central Arizona, resulting in a dust storm in Pinal County where multiple instances of dense blowing dust less than 1/4 mile were reported. New thunderstorm development occurred along these boundaries with some thunderstorms becoming severe. Numerous instances of damaging winds were reported across the Phoenix area and down into northwest Pinal County, which included multiple downed trees and power poles. A very moist environment, with PWATs in excess of 1.80 allowed for thunderstorms to become efficient heavy rainfall producers. Rainfall amounts upwards of around 1.50 within an hour were reported during the event. There were multiple reports of flash flooding across northern parts of the Phoenix area, leading to several water rescues and making some roads impassable. Flash flooding also led to water and mud entering some apartments in north Phoenix causing extensive water damage. Isolated flash flooding occurred across Pinal, Gila, and Yuma Counties. No injuries were reported with this event.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 18:50:00 to 30-JUL-22 19:50:00 (MST-7)
Location: CACTUS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A video showed approximately 1-2 ft of water flowing across the road near 12th Street and Hatcher Road. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:10:00 to 30-JUL-22 20:10:00 (MST-7)
Location: SCOTTSDALE MUNI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Photos showed flooding across Scottsdale Road near Deer Valley Road, making the road impassable. Police were on scene to prevent people from attempting to cross the flooded roadway. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:50:00 to 30-JUL-22 20:50:00 (MST-7)
Location: CAVE CREEK
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Image showed stalled SUV in floodwaters at a low water crossing along Cloud Road between 7th Street and 10th Street. No injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 20:19:00 to 30-JUL-22 21:03:00 (MST-7)
Location: NEW RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Elevated flow in Skunk Creek led to the closure of a low water crossing along 19th Avenue between Desert Hills Drive and Irvine Road. A nearby FCDMC stream gage along Skunk Creek recorded a peak flow of 624 cfs and a peak height of 2.71 ft. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:00:00 to 30-JUL-22 20:00:00 (MST-7)
Location: PHOENIX DEER VLY ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A video on social media showed approximately 6-8 of water flowing south down 16th Street next to Buffalo Ridge Park. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:34:00 to 30-JUL-22 20:03:00 (MST-7)
Location: CAVE CREEK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A FCDMC stream gage along Cave Creek climbed above alarm stage, peaking at 6.24 ft and 2,459 cfs at 1943MST.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:20:00 to 30-JUL-22 21:20:00 (MST-7)
Location: PHOENIX TURF ARPT
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Social Media

A video showed a car stalled in floodwaters over two feet deep near 7th Street and Hearn Road. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:02:00 to 30-JUL-22 18:02:00 (MST-7)
Location: PHOENIX
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

An image showed a large tree that fell onto three parked vehicles at an apartment complex near 7th Avenue and Osborn Road. No injuries were reported.

Flash Flood in GILA, ARIZONA
From 30-JUL-22 17:30:00 to 30-JUL-22 19:30:00 (MST-7)
Location: ROOSEVELT GRPVN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Forest Service Road 396 was closed between Stagecoach Trail and the Eads Wash Day Use Site and River Access Point due to unsafe road conditions from flash flooding. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 18:47:00 to 30-JUL-22 22:37:00 (MST-7)
Location: PHOENIX TURF ARPT
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A video showed firefighters performing a swift water rescue after an SUV stalled in floodwaters when attempting to drive across a low water crossing along 7th Avenue between Greenway Parkway and Coral Gables Drive. At 1925MST, a nearby FCDMC stream gage exceeded bank full stage after recording a peak height of 8.07 ft and a peak flow of 5,080 cfs, which broke the record for this gage. No injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:00:00 to 30-JUL-22 21:00:00 (MST-7)
Location: PHOENIX TURF ARPT
Flood cause: Heavy Rain
Property damage: 90.00K
Crop damage: 0.00K
Reported by: Public

A video showed six cars stalled in floodwaters at the I-17 and Greenway Road underpass. No injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 18:50:00 to 30-JUL-22 20:50:00 (MST-7)
Location: PHOENIX TURF ARPT
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Up to 3 ft of water and mud entered some first floor apartments at Central Avenue and Bell Road after the drainage system was overcome. Some cars in the parking lot of the apartment were also damaged. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:03:00 to 30-JUL-22 18:03:00 (MST-7)
Location: PHOENIX
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Approximately 7-8 power poles were reported down along the Grand Canal, with many falling toward homes and crashing through cinder block walls. Another cinder block wall was knocked down after a metal shed blew out of the backyard of a home and into the canal. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:17:00 to 30-JUL-22 18:17:00 (MST-7)
Location: PHOENIX TURF ARPT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

An image showed a large tree fell onto and destroyed a metal carport, with an SUV parked underneath. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:18:00 to 30-JUL-22 18:18:00 (MST-7)
Location: PHOENIX TURF ARPT
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media live broadcast showed a snapped power pole near Cave Creek Road and Greenway Road. No injuries were reported.

Flash Flood in GILA, ARIZONA
From 30-JUL-22 17:30:00 to 30-JUL-22 19:30:00 (MST-7)
Location: ROOSEVELT GRPVN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spring Creek was reported to be running approximately 8-9 ft in depth, impacting low water crossings through the creek. Over 2 of rain was reported to have fallen in the span of about an hour in this area. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 19:30:00 to 30-JUL-22 21:30:00 (MST-7)
Location: CAVE CREEK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A video showed Galloway Wash flowing over School House Road, making the road impassable. No damage or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 30-JUL-22 18:53:00 to 30-JUL-22 19:53:00 (MST-7)
Location: GLADDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Eagle Eye Road was closed between Salome Highway and US 60 due to flooding in multiple locations along the road. A FCDMC stream gage along Tiger Wash, which flows across an unbridged crossing along the road, briefly climbed above alarm stage after peaking at a height of 5.98 ft and a flow of 541 cfs. No damage or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:20:00 to 30-JUL-22 18:20:00 (MST-7)
Location: PHOENIX TURF ARPT
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

An image showed a metal carport roof blown onto a couple of parked cars. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:30:00 to 30-JUL-22 18:30:00 (MST-7)
Location: PHOENIX TURF ARPT
Magnitude: 50.00 EG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Public

Images showed a gas station canopy knocked over at 7th Street and Coral Gables Drive, falling onto a vehicle. Nearby, images showed an uprooted tree approximately 1 ft in diameter fallen over onto a fence, tearing part of the fence down. No injuries were reported.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 30-JUL-22 16:37:00 to 30-JUL-22 16:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibilities less than 1/4 mile due to dense blowing dust were reported at I-10 at Val Vista Road as well as Waverly Drive and Cox Road. No accidents or injuries were reported.

Flash Flood in PINAL, ARIZONA
From 30-JUL-22 17:42:00 to 30-JUL-22 19:42:00 (MST-7)
Location: LIRIM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

SR 238 westbound was closed at milepost 41 due to flooding. No damage or injuries were reported.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 30-JUL-22 17:06:00 to 30-JUL-22 17:16:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility less than 1/10 mile due to dense blowing dust was reported near Smith Enke Road. A video on social media taken in Maricopa showed visibility less than 1/4 mile. No accidents or injuries were reported.

Thunderstorm Wind in GILA, ARIZONA
From 30-JUL-22 17:04:00 to 30-JUL-22 17:04:00 (MST-7)
Location: ROOSEVELT GRPVN ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts up to 60 mph were measured with a handheld anemometer. Multiple 10-inch diameter Palo Verde trees were reported to have been knocked over in the area. No injuries were reported.

Thunderstorm Wind in PINAL, ARIZONA
From 30-JUL-22 16:40:00 to 30-JUL-22 16:40:00 (MST-7)
Location: STANFIELD
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Public

Images showed significant roof damage to a couple of homes and a flipped trailer home just north of I-8 near Montgomery Road. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 18:37:00 to 30-JUL-22 18:37:00 (MST-7)
Location: PHOENIX DEER VLY ARP
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS at Phoenix-Deer Valley Municipal Airport.

Thunderstorm Wind in PINAL, ARIZONA
From 30-JUL-22 16:50:00 to 30-JUL-22 16:50:00 (MST-7)
Location: CASA GRANDE ARPT
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple toppled or snapped wooden power poles were reported along Rodeo Road west of SR 387. Additional downed power poles were reported along McCartney Road nearby. No injuries were reported.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 30-JUL-22 16:12:00 to 30-JUL-22 16:22:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility less than 1/4 mile due to dense blowing dust was reported near Ropers Road and Bard Arrow Road. No accidents or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-JUL-22 17:22:00 to 30-JUL-22 17:22:00 (MST-7)
Location: GUADALUPE
Magnitude: 35.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Social Media

A video showed a palm tree falling onto three vehicles at a car dealership resulting in damage to the vehicles. No injuries were reported.

Flash Flood in YUMA, ARIZONA
From 30-JUL-22 13:35:00 to 30-JUL-22 14:35:00 (MST-7)
Location: LIGURTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A video showed a wash flowing over a low water crossing along 48th Street, making the road impassable. No damage or injuries were reported.

Thunderstorm Wind in PINAL, ARIZONA
From 30-JUL-22 17:02:00 to 30-JUL-22 17:02:00 (MST-7)
Location: MAGMA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An image showed a large branch of a tree snapped off and narrowly missed a home near Ocotillo Road and Meridian Road. A video taken in the area showed very strong winds estimated to be in excess of 60 mph. No injuries were reported.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 30-JUL-22 16:09:00 to 30-JUL-22 16:19:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility less than 1/4 mile due to dense blowing dust was reported at the I-8 and I-10 junction. No accidents or injuries were reported.