The overall pattern featured an upper-level low pressure situated along the west coast and the subtropical high pressure centered over New Mexico. This overall pattern configuration resulted in southerly flow across Arizona, which helped transport moisture into the region. Thus, the environment became conducive for thunderstorm activity as PWATs rose to 1.3-1.5 and MLCAPE values ranged between 1000-2000 J/kg across most of central and southern AZ. DCAPE values were very high, on the order of 2000 J/kg, which resulted in a very favorable setup for strong to severe winds. Thunderstorms first developed over southeast Arizona and then, with the southerly flow, were steered into south-central AZ. There were widespread reports of dense blowing dust with visibilities reduced to 1/4 mile or less as well as wind damage as winds were in excess of 60 mph. In addition, a training thunderstorm over northern Maricopa County, in the Anthem area, resulted in 2-4 of rain according to doppler radar estimates and led to significant flash flooding.

Thunderstorm Wind in PINAL, ARIZONA
From 31-AUG-23 20:10:00 to 31-AUG-23 20:10:00 (MST-7)
Location: BON
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A wind gust of 64 mph was measured at the Ak-Chin Regional Airport.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:00:00 to 31-AUG-23 21:00:00 (MST-7)
Location: LAVEEN
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A large uprooted tree in the area of South 35th Avenue and West Vineyard Road in Phoenix. Wind gusts were estimated of up to 65 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 20:48:00 to 31-AUG-23 20:48:00 (MST-7)
Location: (PHX)SKY HARBOR ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 65 mph wind gust was measured from a mesonet station located along the area of South 16th street and East Roeser Road in Phoenix.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 20:54:00 to 31-AUG-23 20:54:00 (MST-7)
Location: (PHX)SKY HARBOR ARPT
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 73 mph wind gust was measured at Phoenix Sky Harbor Airport.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:15:00 to 31-AUG-23 21:15:00 (MST-7)
Location: CASHION
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 65 mph wind gust was measured at a mesonet station located at the Phoenix International Raceway in Avondale.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:30:00 to 31-AUG-23 21:30:00 (MST-7)
Location: CASHION
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 58 mph wind gust was measured at a mesonet station located in the area of South Avondale Boulevard and West Coldwater Springs Boulevard in Avondale.

Flash Flood in MARICOPA, ARIZONA
From 31-AUG-23 23:00:00 to 31-AUG-23 23:59:00 (MST-7)
Location: CAVE CREEK
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water rescue performed on East Cloud Road just east of North 7th Street in Anthem as person was rescued from vehicle due to flooding. The vehicle, a Ford F150, was swept away by the flood waters.

Thunderstorm Wind in PINAL, ARIZONA
From 31-AUG-23 19:50:00 to 31-AUG-23 19:50:00 (MST-7)
Location: CASA GRANDE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 58 mph wind gust was measured at a mesonet station located just northwest of Casa Grande.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 31-AUG-23 19:42:00 to 31-AUG-23 20:02:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility of approximately a quarter mile reported along the area of West Val Vista Road and Interstate 10 in Casa Grande from dense blowing dust due to thunderstorm outflow winds. No accidents or injuries were reported.

Dust Storm in NORTHWEST PINAL COUNTY, ARIZONA
From 31-AUG-23 20:02:00 to 31-AUG-23 20:22:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Visibility less than 1/4 mile reported along Bowlin Road in Maricopa from dense blowing dust due to thunderstorm outflow winds. No accidents or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:30:00 to 31-AUG-23 21:30:00 (MST-7)
Location: YOUNGTOWN
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

A damaged mobile home awning laid on the road of North 103 Avenue between West Olive Avenue and West Northern Avenue in Glendale. Timing estimated from radar. Wind gusts were estimated at around 60 mph. No injuries were reported.

Thunderstorm Wind in PINAL, ARIZONA
From 31-AUG-23 20:02:00 to 31-AUG-23 20:02:00 (MST-7)
Location: ARIZONA CITY
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 74 mph wind gust was measured along the area of Sunland Gin Road and Kramer Lane in Arizona City.

Thunderstorm Wind in PINAL, ARIZONA
From 31-AUG-23 20:19:00 to 31-AUG-23 20:19:00 (MST-7)
Location: LIRIM
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 60 mph wind gust was measured at a mesonet station located along State Route 230 just west of Maricopa.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 20:45:00 to 31-AUG-23 20:45:00 (MST-7)
Location: PARADISE VLY
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 59 mph wind gust was measured at a mesonet station located in the area of North Highland Drive and East Lamar Road in Paradise Valley.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 20:48:00 to 31-AUG-23 20:48:00 (MST-7)
Location: PHOENIX
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A couple of mesquite trees, estimated at 8-10 diameter, were blown over in the area of E Jefferson Street between 10th and 11th street in downtown Phoenix. Wind gusts were estimated to be up to 65 mph. No injuries were reported.

Dust Storm in CENTRAL PHOENIX, ARIZONA
From 31-AUG-23 20:54:00 to 31-AUG-23 20:54:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A quarter mile visibility was reported at Phoenix Sky Harbor Airport from dense blowing dust due to thunderstorm outflow winds. No accidents or injuries were reported.

Thunderstorm Wind in PINAL, ARIZONA
From 31-AUG-23 20:15:00 to 31-AUG-23 20:15:00 (MST-7)
Location: LIRIM
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Photos showing several large uprooted trees in the city of Maricopa. Wind gusts were estimated of up to 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:05:00 to 31-AUG-23 21:05:00 (MST-7)
Location: GOMEZ ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 59 mph wind gust was measured at a mesonet station located along the area of South 43rd Avenue and West Lower Buckeye Road in Phoenix.

Lightning in MARICOPA, ARIZONA
From 31-AUG-23 21:10:00 to 31-AUG-23 21:10:00 (MST-7)
Location: PARADISE VLY
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Broadcast Media

A palm tree caught on fire due to a lightning strike in the area of North Timberland Drive located in the Gainey Ranch area of Scottsdale. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:15:00 to 31-AUG-23 21:15:00 (MST-7)
Location: WEST END
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Massive 2-4 foot diameter tree fell across a few cars in the area of North 75th Avenue and West Indian School Road in Glendale. Wind gusts were estimated at around 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:00:00 to 31-AUG-23 21:00:00 (MST-7)
Location: KENDALL
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A palm tree fell and landed on top of a car in the area of South 40th street and East Van Buren Street. Wind gusts were estimated of up to 70 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:15:00 to 31-AUG-23 21:15:00 (MST-7)
Location: WEST END
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Photos of large tree branches blocking road in the Glenarm Farms Neighborhood in Avondale. Wind gusts were estimated of up to 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:00:00 to 31-AUG-23 21:00:00 (MST-7)
Location: SUNNYSLOPE
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Large uprooted tree in the area of North Central Avenue and East Northern Avenue in Phoenix. Wind gusts were estimated of up to 60 mph. No injuries were reported.

Lightning in MARICOPA, ARIZONA
From 31-AUG-23 21:00:00 to 31-AUG-23 21:00:00 (MST-7)
Location: GUADALUPE
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Broadcast Media

A lightning strike sparked a fire half an acre in size along the TV towers in South Mountain in Phoenix. Firefighters were able to extinguish fire successfully with structural damage reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:16:00 to 31-AUG-23 21:16:00 (MST-7)
Location: GOODYEAR
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of Auto Drive to Western Avenue and Litchfield Road to 5th Street in Goodyear. Wind gusts were estimated at around 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:42:00 to 31-AUG-23 21:42:00 (MST-7)
Location: VALENCIA
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of Yuma Road to Broadway Road and 231st Avenue to Airport Road in Buckeye. Wind gusts were estimated at around 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:53:00 to 31-AUG-23 21:53:00 (MST-7)
Location: PHOENIX DEER VLY ARP
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A 62 mph wind gust was measured at Phoenix Deer Valley Airport.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:25:00 to 31-AUG-23 21:25:00 (MST-7)
Location: TOLLESON
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 58 mph wind gust was measured at a mesonet station located in the area of North 107th Avenue just south of Interstate 10.

Flash Flood in MARICOPA, ARIZONA
From 31-AUG-23 22:21:00 to 31-AUG-23 23:59:00 (MST-7)
Location: NEW RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A Maricopa County Flood Control District Gauge along Skunk Tank Wash near the intersection of Desert Hills Drive and North 7th Avenue reported flows rising to above alarm stage, which is 4.2 feet, at 22:21 MST. The flow peaked at 7.09 feet (674 cfs), which is above the flood stage of 7.00 feet, at 22:49 MST. The flow fell below alarm stage at 23:43 MST. The elevated water flow caused the closure of Desert Hills Drive between 19th and 15th Avenues due to flooding. No damages or injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 31-AUG-23 22:30:00 to 31-AUG-23 23:59:00 (MST-7)
Location: NEW RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Video uploaded by the Daisy Mountain Fire Department Station 142 in Anthem showed several inches of flowing water along a street within the station's jurisdiction. No damages or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 20:34:00 to 31-AUG-23 20:34:00 (MST-7)
Location: (PHX)SKY HARBOR ARPT
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of South 20th street to South 32nd Street and East Elwood street to East Roeser Road in Phoenix. Wind gusts were estimated to be up to 65 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:09:00 to 31-AUG-23 21:09:00 (MST-7)
Location: GLENDALE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of North 59th Avenue to North 51st Avenue and West Bethany Home Road to West Missouri Avenue in Glendale. Wind gusts were estimated to be at approximately 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:00:00 to 31-AUG-23 21:00:00 (MST-7)
Location: KENDALL
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of South Priest Drive to South Hardy Drive and West 1st Street to West University Drive in Tempe. Wind gusts were estimated to be up to 65 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:09:00 to 31-AUG-23 21:09:00 (MST-7)
Location: PHOENIX FARM AERO AR
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Utility Company

Downed powerlines were reported along the area of McKinley St to Pima St and 31st Ave to 23rd Ave in Phoenix. Wind gusts were estimated to be up to 65 mph. No injuries were reported.

Flash Flood in MARICOPA, ARIZONA
From 31-AUG-23 23:00:00 to 31-AUG-23 23:59:00 (MST-7)
Location: NEW RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water rescue reported along the intersection of North New River Road and North 67th Avenue in Anthem due to flooding. No damages or injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:35:00 to 31-AUG-23 21:35:00 (MST-7)
Location: NEW RIVER
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large downed 20 year old Mesquite Tree was reported at North Crooked Stick Road in Anthem. The downed tree was blocking the road and sitting on a car. Wind gusts were estimated at around 60 mph. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:25:00 to 31-AUG-23 21:25:00 (MST-7)
Location: WEST END
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 58 mph wind gust was measured at a mesonet station located along West Britton Avenue in Glendale.

Thunderstorm Wind in MARICOPA, ARIZONA
From 31-AUG-23 21:55:00 to 31-AUG-23 21:55:00 (MST-7)
Location: (LUF)LUKE AFB
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A 58 mph wind gust was measured at Luke Air Force Base.

Flash Flood in MARICOPA, ARIZONA
From 31-AUG-23 23:00:00 to 31-AUG-23 23:59:00 (MST-7)
Location: NEW RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A water rescue was reported in the intersection of West Joy Ranch Road and North Pioneer Road in Anthem due to flooding. No damages or injuries were reported.

Flash Flood in PINAL, ARIZONA
From 31-AUG-23 20:30:00 to 31-AUG-23 22:30:00 (MST-7)
Location: STANFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Barnes Road from Stanfield Road to Murphy Road closed due to Green Wash running. No damages or injuries were reported.