Scattered thunderstorms affected much of south central Arizona during the afternoon and evening hours on August 3rd, and some of the areas impacted included Wickenburg as well as the greater Phoenix metropolitan area. The stronger thunderstorms produced locally heavy rain with rain rates approaching 2 inches per hour. Additionally, they generated gusty and damaging microburst winds; some of most significant damage occurred in the town of Tempe. Several Flash Flood and Severe Thunderstorm warnings were issued for south central Arizona as a result of the strong thunderstorms.

Thunderstorm Wind in MARICOPA, ARIZONA
From 03-AUG-14 17:44:00 to 03-AUG-14 17:44:00 (MST-7)
Location: WICKENBURG
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorms developed in the Wickenburg area during the late afternoon hours on August 3rd, and they produced damaging microburst outflow winds estimated to be nearly 70 mph in strength. According to a trained weather spotter located in northwest Wickenburg, the microburst winds produced roof damage in downtown Wickenburg. A Severe Thunderstorm Warning was issued for Wickenburg at 1720MST and it continued until 1745MST.

Thunderstorm Wind in MARICOPA, ARIZONA
From 03-AUG-14 18:10:00 to 03-AUG-14 18:10:00 (MST-7)
Location: HELENA
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorms developed across portions of the greater Phoenix area during the evening hours on August 3rd, and some of the storms produced strong and gusty outflow winds. According to a National Weather Service employee, gusty winds estimated to be nearly 60 mph blew down a tree at an intersection about 2 miles west of Fiesta Mall. Debris from the fallen tree was blown onto a car causing damage. The location of the damage was near the intersection of the Superstition Freeway and the Loop 101.

Thunderstorm Wind in MARICOPA, ARIZONA
From 03-AUG-14 18:15:00 to 03-AUG-14 18:15:00 (MST-7)
Location: TEMPE
Magnitude: 65.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms developed across portions of the greater Phoenix area during the evening hours on August 3rd, and some of the stronger storms affected the community of Tempe. The storms produced damaging microburst winds that were estimated to reach 70 mph at times. Several reports of damage were received from the public, mostly in the area about 2 miles to the east of Tempe. The damage reports all occurred at approximately 1815MST. According to public reports, a two foot in diameter tree was uprooted, and when it fell it damaged a stone wall. Additionally, two large trees were blown down, causing damage to a cinder block wall and a swimming pool. Many other large trees in the area were also blown down. Finally, another public report indicated that a power pole was snapped in east central Tempe at the intersection of South River Drive and Southern Avenue. This location was on Southern Avenue between McClintock Drive and the Loop 101.

Heavy Rain in MARICOPA, ARIZONA
From 03-AUG-14 17:00:00 to 03-AUG-14 19:00:00 (MST-7)
Location: WICKENBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Strong thunderstorms developed in the Wickenburg area during the late afternoon hours on August 3rd, and some of them produced locally heavy rainfall with peak rain rates in excess of 2 inches per hour. At 1744MST a trained weather spotter in northwest Wickenburg estimated that nearly 2 inches of rain had fallen within 30 minutes. The heavy rain led to the issuance of a Flash Flood Warning for Wickenburg; the warning began at 1734MST and continued until 1900MST. No injuries were reported due to the heavy rain or flash flooding.

Thunderstorm Wind in MARICOPA, ARIZONA
From 03-AUG-14 18:15:00 to 03-AUG-14 18:15:00 (MST-7)
Location: TEMPE
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms developed across portions of the greater Phoenix metropolitan area during the late afternoon and early evening hours on August 3rd, and some of them affected the community of Tempe. The stronger storms produced gusty and damaging winds, with peak gusts estimated to be at least 60 mph. According to a local broadcast media report, thunderstorm winds blew down several trees at the Apache Station apartments, located about 2 miles southeast of the Tempe Marketplace. The falling trees resulted in two injuries; one man's finger was broken as a tree fell, and another woman was injured when a tree was blown into the pool at the apartment complex. Additionally, the media reported that strong thunderstorm winds blew off half of the roof at an animal hospital near the Apache Station apartment complex.