Numerous showers and thunderstorms developed across the south central Arizona deserts during the afternoon hours on the 14th, and they continued into the evening. Due to the very moist and unstable nature of the atmosphere, the storms produced locally heavy rainfall which led to episodes of flash flooding or flooding. Radar and rain gages indicated that rainfall rates exceeded 3 inches per hour at times. A few of the storms produced wet microbursts with damaging wind in excess of 60 mph. Much of the heavy rain and flash flooding affected the greater Phoenix metropolitan area, especially the southeastern portions.

Heavy Rain in MARICOPA, ARIZONA
From 14-JUL-12 15:45:00 to 14-JUL-12 16:30:00 (MST-7)
Location: GILBERT
Property damage: 110.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous thunderstorms developed across the greater Phoenix metropolitan area, especially the southeastern valley communities, during the afternoon hours on July 14th. Due to the very moist and unstable nature of the atmosphere, the storms generated intense rainfall which led to episodes of flash flooding. Heavy rain in excess of 2 inches fell in the Gilbert area between 330 pm and 430 pm. During the peak of the heavy rainfall, approximately 1.5 inches of rain fell within 10 minutes, causing the collapse of the roof at Tees and More located at 313 North Gilbert Road. According to the store owners, Pete and Barb Addiego, the roof collapse caused at least 110 thousand dollars in damaged equipment and inventory. Fortunately, no injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 14-JUL-12 15:45:00 to 14-JUL-12 15:50:00 (MST-7)
Location: HIGLEY
Magnitude: 65.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Employee

Numerous thunderstorms developed across the greater Phoenix metropolitan area during the afternoon hours on July 14th. Due to the very wet and unstable nature of the airmass, most of the thunderstorms produced very heavy rain. A few generated wet microbursts with damaging winds. At 345 pm, a Weather Service employee reported that numerous trees had been blown down at the San Tan Village Mall in Gilbert Ranch. One of the trees was about 40 feet tall and it fell over and landed on an automobile, causing significant damage. Peak wind gusts were estimated to be about 65 knots. No injuries were reported.

Thunderstorm Wind in MARICOPA, ARIZONA
From 14-JUL-12 16:04:00 to 14-JUL-12 16:10:00 (MST-7)
Location: HIGLEY
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Widespread thunderstorms developed over the greater Phoenix metropolitan area during the afternoon hours on July 14th. Due to the very moist and unstable nature of the airmass, most of the storms generated very heavy rain. However, isolated storms produced wet microbursts with damaging winds across southeastern portions of the Phoenix area. At 404 pm, a trained weather spotter located in Gilbert reported several trees down along Greenfield road between Ray and Warner roads. The largest trees were around 12 inches in diameter. Peak wind gusts were estimated to be about 65 knots. No injuries were reported due to the fallen trees.

Heavy Rain in MARICOPA, ARIZONA
From 14-JUL-12 15:20:00 to 14-JUL-12 17:45:00 (MST-7)
Location: GILBERT
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous thunderstorms developed across the greater Phoenix area during the afternoon hours on July 14th, especially across the southeast valley. Due to the very moist and unstable airmass in place, most of the storms generated locally heavy rain, with the highest rain rates observed to be in excess of 2 inches per hour. According to a trained weather spotter in Gilbert, 2.25 inches of rain fell between 330 pm and 430 pm at a home located at Val Vista and Elliot roads. The heavy rain led to some street flooding at the San Tan Village Mall. Marble sized hail also occurred, along with some gusty winds that damaged a few trees in the area.

Heavy Rain in MARICOPA, ARIZONA
From 14-JUL-12 15:30:00 to 14-JUL-12 17:45:00 (MST-7)
Location: NORTONS CORNER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous showers and thunderstorms developed across the greater Phoenix metropolitan area, especially the southeastern valley communities, during the afternoon hours on July 14th. Due to the very moist and unstable nature of the atmosphere, the storms generated locally heavy rainfall which led to widespread street flooding. According to a trained weather spotter 2 miles southwest of Gilbert, 1.1 inches of rain fell between 330 pm and 4 pm. Several additional weather spotters in the southeast valley, including communities such as Gilbert, Chandler and Seville, reported similar amounts of rainfall between 330 pm and 5 pm. Commonly, the reports indicated that around one inch of rain fell within a 30 minute period. For example, at 442 pm a trained spotter 2 miles west of Apache Junction reported 0.93 inches of rain measured in the past half-hour.

Flash Flood in MARICOPA, ARIZONA
From 14-JUL-12 15:30:00 to 14-JUL-12 20:00:00 (MST-7)
Location: BUCKHORN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Numerous showers and thunderstorms developed over the greater Phoenix metropolitan area, especially the southeast valley communities, during the afternoon hours on July 14th. Due to the very moist and unstable nature of the atmosphere, the storms generated locally heavy rain which led to flooding and flash flooding across portions of the southeast valley. Heavy rain began by 3 pm or so, and a flash flood warning was issued starting at 343 pm. According to Arizona Department of Transportation (ADOT) personnel, the excessive rain caused four lanes of US 60 - the Superstition Freeway - to be blocked off in each direction, approximately 2 miles south of Mesa. The freeway was blocked by 430 pm and remained closed well into the evening.

Flash Flood in MARICOPA, ARIZONA
From 14-JUL-12 14:00:00 to 14-JUL-12 17:00:00 (MST-7)
Location: MOBILE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Scattered thunderstorms developed across southwestern Maricopa county during the early afternoon hours on July 14th, mainly south and east of Gila Bend. Due to the very moist and unstable nature of the atmosphere, the storms generated locally heavy rainfall which led to some flash flooding. According to Arizona Department of Transportation (ADOT), a flash flood near Mobile resulted in the closure of Highway 238 between mileposts 0 and 38.

Flash Flood in MARICOPA, ARIZONA
From 14-JUL-12 16:30:00 to 14-JUL-12 19:00:00 (MST-7)
Location: SKYWAY VLG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Scattered to numerous showers and thunderstorms developed across the greater Phoenix metropolitan area during the afternoon hours on July 14th. Due to the very moist and unstable nature of the atmosphere, the storms generated heavy rain which led to episodes of flash flooding. Beginning around 330 pm, flash flooding developed in the southeastern valley communties, including Gilbert and Chander, and flash flood warnings were issued. Heavy rain then developed further to the north and east, and at 5 pm there was a public report of flash flooding in Goldfield Ranch, on the eastern fringe of the Phoenix metropolitan area. A wash along the Beeline Highway was reported to be flowing rapidly, and flooding out of its banks. Fortunately, no injuries were reported due to the flash flooding.