Scattered strong thunderstorms developed across south central Arizona during the early afternoon hours on June 12th. The storms produced damaging winds in excess of 60 mph which affected portions of the greater Phoenix area as well as communities across northwest Pinal county. In addition, the gusty winds generated dense blowing dust, sufficient to produce dust storm conditions across the central deserts. Dust storm conditions were reported by a number of trained weather spotters in the greater Phoenix area during the early afternoon hours on June 12th.

Thunderstorm Wind in PINAL, ARIZONA
From 12-JUL-13 12:30:00 to 12-JUL-13 12:40:00 (MST-7)
Location: FLORENCE
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorms developed during the early afternoon hours across portions of north central Pinal county on July 12th. The storms produced gusty and damaging winds estimated to be in excess of 60 mph, which affected communities such as San Tan Valley and Florence. At 1230 pm, a trained weather spotter 2 miles north of Florence reported that a large tree had been blown over in Florence Gardens. In addition, an awning had been blown off of a house in the same area. A Severe Thunderstorm Warning had been issued for the area beginning at 1224 pm and continuing through 115 pm.

Thunderstorm Wind in MARICOPA, ARIZONA
From 12-JUL-13 13:00:00 to 12-JUL-13 13:10:00 (MST-7)
Location: BOYS RANCH
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Scattered strong thunderstorms developed over portions of south central Arizona during the early afternoon hours on July 12th. They affected the eastern portions of the greater Phoenix metropolitan area, including the community of Queen Creek. The storms generated strong and damaging winds. According to local broadcast media, at about 1 pm, thunderstorm winds estimated to be in excess of 60 mph blew over a 7 foot high steel wall. The wall fell on top of an person, causing injuries. A Severe Thunderstorm Warning was issued for the area beginning at 1243 pm and continuing until 145 pm.

Thunderstorm Wind in PINAL, ARIZONA
From 12-JUL-13 12:40:00 to 12-JUL-13 13:00:00 (MST-7)
Location: MAGMA
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorms developed during the early afternoon hours across portions of north central Pinal county on June 12th. The storms produced gusty and damaging winds estimated to be in excess of 60 mph, which affected communities such as San Tan Valley and Florence. At 1240 pm, a member of the public reported an 8 inch diameter tree blown down 1 mile east of San Tan Valley. At 1249 pm, a trained weather spotter 2 miles east of San Tan Valley reported several 6 to 8 inch diameter trees blown down. He estimated winds to be upwards of 60 mph. A Severe Thunderstorm Warning had been issued for the area beginning at 1224 pm and continuing through 115 pm.

Dust Storm in GREATER PHOENIX AREA, ARIZONA
From 12-JUL-13 13:10:00 to 12-JUL-13 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorms developed across northern Pinal county during the early afternoon hours on July 12th, and they produced gusty winds in excess of 50 mph which spread to the north and northwest and into the greater Phoenix area. As the winds spread out they picked up substantial amounts of dust and produced dust storm conditions, with visibilities lowering to near zero miles at times. Beginning at about 115 pm, and continuing through 2 pm, at least half a dozen trained weather spotters across the eastern and southeast portions of the greater Phoenix area reported dust storm conditions. At 116 pm a trained spotter at Superstition Springs Mall reported a quarter mile visibility at Power Road and US 60. At 120 pm, another spotter 3 miles northeast of Gilbert reported a quarter mile visibility and 40 mph winds. At 140 pm, a trained spotter 1 mile southwest of Fountain Hills reported 45 mph winds and visibility lowered below one quarter mile in dense blowing dust. Fortunately, no serious accidents were reported due to the dense blowing dust. A Dust Storm Warning was issued for the greater Phoenix area, beginning at 111 pm and continuing until 3 pm.