Scattered thunderstorms developed across portions of south central Arizona during the evening hours on August 30th, and due to a favorable combination of elevated moisture, instability and winds aloft, some of the stronger storms produced strong gusty and damaging microburst winds. Some of the most significant damage affected the central  portion of the greater Phoenix area, but wind damage also occurred in Gila Bend. Gusty microburst winds in excess of 65 mph snapped trees and power poles, destroyed walls and horse stables and blew over a 300 pound barbeque grill. Locally heavy rainfall was also observed and this led to street flooding issues in the town of Laveen. Fortunately, no injuries were reported as a result of the strong winds.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-AUG-15 18:30:00 to 30-AUG-15 18:30:00 (MST-7)
Location: LAVEEN
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms developed over the central portion of the greater Phoenix metropolitan area during the evening hours, and some of the more intense ones produced very strong outflow winds as well as heavy rainfall. Some communities affected included the town of Laveen as well as South Mountain Park. According to a trained weather spotter located about 3 miles northwest of South Mountain Park, thunderstorm wind gusts estimated as high as 65 mph blew over a 300 pound barbeque grill. The spotter also measured 1.75 inches of rain from the storms.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-AUG-15 19:47:00 to 30-AUG-15 19:47:00 (MST-7)
Location: CHANDLER ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorms affected the southeast portion of the greater Phoenix metropolitan area during the evening hours on August 30th, and some of the stronger storms generated gusty outflow winds to nearly 60 mph. One community that was affected by the strong winds was Chandler. At 1947MST, the official AWOS weather sensor at the Chandler airport measured a wind gust to 59 mph.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-AUG-15 18:46:00 to 30-AUG-15 18:46:00 (MST-7)
Location: GILA BEND
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms developed across south central Arizona during the evening hours on August 30th, and some of them affected the town of Gila Bend. The stronger storms produced gusty and damaging outflow winds estimated to be at least 60 mph in strength. According to a trained weather spotter in the town of Gila Bend, at 1846MST gusty outflow winds snapped some power lines and this resulted in a power outage in town.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-AUG-15 20:01:00 to 30-AUG-15 20:01:00 (MST-7)
Location: CHANDLER ARPT
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Scattered thunderstorms affected the southern portion of the greater Phoenix metropolitan area during the evening hours on August 30th, and some of the stronger storms produced gusty and damaging outflow winds in excess of 50 mph. According to a public report, at about 2000MST thunderstorm outflow winds estimated to be at least 60 mph snapped a tree in south Chandler, located approximately 1 mile southwest of Tumbleweed Park. The tree had a diameter of about 6 inches.

Thunderstorm Wind in MARICOPA, ARIZONA
From 30-AUG-15 18:20:00 to 30-AUG-15 18:30:00 (MST-7)
Location: LAVEEN
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms affected the southern portion of the greater Phoenix metropolitan area during the evening hours on August 30th, and due to a favorable combination of elevated moisture, instability and winds aloft, the stronger storms generated gusty and damaging microburst winds. One of the areas that was impacted the most was the town of Laveen as well as South Mountain Park. According to a trained weather spotter 3 miles northwest of South Mountain Park, at 1830MST microburst winds estimated to be as high as 75 mph blew down the wall of a local pharmacy. The winds also destroyed 2 horse stables in the area and snapped a telephone pole in half near the intersection of 27th Drive and Cheyenne Road. Fortunately there were no injuries reported to humans or horses.

Heavy Rain in MARICOPA, ARIZONA
From 30-AUG-15 19:30:00 to 30-AUG-15 22:30:00 (MST-7)
Location: GOMEZ ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms affected the greater Phoenix metropolitan area during the evening hours on August 30th, and one area that was especially impacted was the south central portion including the town of Laveen. Strong thunderstorms in the area produced locally heavy rainfall with peak rain rates in excess of 1 inch per hour, and the rain was sufficient to cause episodes of urban street flooding. At  2145MST a trained weather spotter in Laveen reported that Dobbins Road between 43rd Avenue and 23rd Avenue was covered 2 to 4 inches deep in water. Some of the water was flowing but most of the water was ponded. About 15 minutes earlier an Urban and Small Stream Flood Advisory was issued for the Laveen and South Mountain Park area; the advisory was in effect until 2230MST.