A series of weather disturbances moved eastward across Arizona during the afternoon and evening hours on July 1st and they interacted with lingering monsoon moisture to produce scattered strong thunderstorms. Some of the stronger thunderstorms produced a variety of weather elements that affected the south central deserts including the greater Phoenix area; some of the elements included marble sized hail, heavy rain, flash flooding and strong damaging outflow winds. Heavy rain north of Gila Bend was so intense that almost one and one half inches fell within 30 minutes. In Ahwatukee, wind gusts estimated to be in excess of 60 mph uprooted a Palo Verde tree that was one foot in diameter.

Hail in MARICOPA, ARIZONA
From 01-JUL-16 16:05:00 to 01-JUL-16 16:05:00 (MST-7)
Location: NEW RIVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered strong thunderstorms developed over the far northern portion of the greater Phoenix area during the afternoon hours on July 1st and some of these storms generated large hail. According to a trained weather spotter located 4 miles north of New River, at 1605MST hailstones measured to be at least 0.75 inches in diameter were observed along Interstate 17 between mile posts 244 and 246. No reports of damage were received as a result of the large hail.

Thunderstorm Wind in MARICOPA, ARIZONA
From 01-JUL-16 19:14:00 to 01-JUL-16 19:14:00 (MST-7)
Location: (GBN)GILA BEND MUNI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Scattered strong thunderstorms moved across the community of Gila Bend during the early evening hours on July 1st and some produced strong gusty winds. At 1914MST the official ASOS weather station at the Gila Bend airport measured a wind gust of 50 knots.

Thunderstorm Wind in MARICOPA, ARIZONA
From 01-JUL-16 19:15:00 to 01-JUL-16 19:15:00 (MST-7)
Location: WEST CHANDLER
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms moved east across the greater Phoenix metropolitan area during the evening hours on July 1st and some of the stronger storms generated strong and damaging outflow winds. According to a trained weather spotter located 3 miles east of Ahwatukee Foothills, outflow winds estimated to be as high as 65 mph uprooted and Palo Verde tree with a diameter of one foot.

Heavy Rain in MARICOPA, ARIZONA
From 01-JUL-16 19:00:00 to 01-JUL-16 19:30:00 (MST-7)
Location: COTTON CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A line of strong thunderstorms passed east across southwest Maricopa county during the evening hours on July 1st and in addition to strong gusty wind, the storms produced locally heavy rainfall with intense rainfall rates. Very heavy rain was reported to have fallen to the north of Gila Bend. A trained weather spotter located 11 miles north of Gila Bend and just to the west of Highway 85 measured 1.44 inches of rainfall in a 30 minute period ending at 1930MST. The heavy rainfall led to the issuance of an Urban Flood Advisory which was first issued at 1852MST.

Flash Flood in MARICOPA, ARIZONA
From 01-JUL-16 20:00:00 to 01-JUL-16 22:30:00 (MST-7)
Location: MOBILE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A line of thunderstorms with intense rainfall moved east across southwest Maricopa County during the evening hours on July 1st; earlier in the evening at 1930MST a trained spotter 11 miles north of Gila Bend measured 1.44 inches within a 30 minute period. As the thunderstorms and heavy rain translated eastward they produced flash flooding along Highway 238 to the east of Gila Bend and near the town of Mobile. A spokesman for the Arizona Department of Highways indicated that flash flooding resulted in the closure of Highway 38 at 2130MST. The closure was about 1 mile to the east of the town of Mobile. No accidents or injuries were reported due to the flash flooding.