Scattered monsoon thunderstorms developed across portions of the greater Phoenix metropolitan area during the evening hours on July 29th and these storms primarily generated strong gusty and damaging winds as opposed to heavy rain and flooding. A brief episode of dense blowing dust also occurred near the town of Maricopa, to the southeast of Phoenix. For the most part, peak wind gusts reached to around 60 mph and they were responsible for downing a number of trees in addition to snapping a light pole in El Mirage. However, one very strong gust was measured at 83 mph at Luke Air Force Base at 1656MST.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 16:56:00 to 29-JUL-17 16:56:00 (MST-7)
Location: (LUF)LUKE AFB
Magnitude: 72.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Scattered thunderstorms affected portions of the greater Phoenix area during the evening hours on July 29th, bringing strong, gusty and damaging winds to communities such as Luke. At 1656MST, the official AWOS weather station at Luke Air Force Base measured a gust to 83 mph. This was the strongest wind gust measured in the Phoenix area on this day. A Severe Thunderstorm Warning was not issued for this storm, rather a Significant Weather Advisory instead.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 17:00:00 to 29-JUL-17 17:00:00 (MST-7)
Location: WEBB
Magnitude: 72.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorms with very strong winds developed across the western portion of the greater Phoenix metropolitan area during the late afternoon hours on July 29th and one particularly strong storm affected Luke Air Force Base. At about 1700MST the storm generated an outflow wind measured at 83 mph by the official AWOS weather station at the base. According to federal officials, the strong winds downed several trees and caused a variety of minor damage to the air force base. No injuries were reported however.

Dust Storm in CENTRAL DESERTS, ARIZONA
From 29-JUL-17 18:00:00 to 29-JUL-17 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms developed across the greater Phoenix metropolitan area during the late afternoon hours on July 29th and some of the stronger storms generated gusty outflow winds that reached to around 50 mph. The winds were sufficiently strong as to stir up areas of dense blowing dust and create dust storm conditions; some of the especially dense dust affected the town of Maricopa located to the southeast of Phoenix. According to a trained weather spotter, at 1812MST a dust storm was present 4 miles to the northeast of Maricopa; dense blowing dust reduced visibility to 30 feet, creating very hazardous driving conditions. A Dust Storm Warning was issued at 1815MST as a result and remained in effect through 1900MST. Fortunately, no accidents or injuries resulted from the sharply reduced visibility.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 17:20:00 to 29-JUL-17 17:40:00 (MST-7)
Location: LITCHFIELD JCT
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Public

Scattered thunderstorms developed across the western portion of the greater Phoenix area during the late afternoon hours on July 29th and they affected communities such as Litchfield Park and Goodyear. The stronger storms produced gusty and damaging outflow winds estimated to be as high as 60 mph. At 1740MST a public report indicated that strong winds downed several trees and tree branches 3 miles to the southwest of Litchfield Park. About 10 minutes earlier, a trained spotter not far away, about 3 miles north of Goodyear, reported that strong winds blew down a tree with a diameter of 7 inches.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 16:45:00 to 29-JUL-17 16:45:00 (MST-7)
Location: ENNIS
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across the western portion of the greater Phoenix area during the afternoon hours on July 29th and some of the stronger storms affected the community of Surprise. One of the storms produced strong outflow winds estimated to be as high as 70 mph. According to a report from the public, at 1645MST those strong winds blew over a trailer and a picture of the trailer was posted on social media. The trailer was located about 2 miles southwest of Surprise. No injuries were reported fortunately.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 17:10:00 to 29-JUL-17 17:10:00 (MST-7)
Location: YOUNGTOWN
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Scattered thunderstorms developed across the western portion of the greater Phoenix metropolitan area during the afternoon hours on July 29th and some of the stronger storms produced gusty and damaging outflow winds which affected communities such as El Mirage. According to local broadcast media, at 1710MST gusty winds estimated to be 60 mph knocked down a tree and snapped a light pole.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 17:15:00 to 29-JUL-17 17:15:00 (MST-7)
Location: ENNIS
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across the western portion of the greater Phoenix area during the afternoon hours on July 29th and some of the stronger storms affected areas around the town of Surprise and El Mirage. The storms generated gusty and damaging outflow winds estimated to be as high as 60 mph. According to a report from the public which included pictures, strong winds downed a number of trees as well as power lines just to the southeast of Surprise. The damage was southeast of the intersection of Litchfield Road and West Greenway Road.

Thunderstorm Wind in MARICOPA, ARIZONA
From 29-JUL-17 17:30:00 to 29-JUL-17 17:30:00 (MST-7)
Location: TOLLESON
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms developed across the western portion of the greater Phoenix area during the afternoon hours on July 29th and some of the stronger storms produced gusty and damaging outflow winds that impacted the community of Tolleson. At 1730MST, gusty winds estimated to be nearly 70 mph in strength snapped a palm tree in half, nearly three quarters of the way from the top of the tree. The snapped tree was reported by a local emergency manager and was located near the intersection of Interstate 10 and the loop 101 freeway, just north of the town of Tolleson.

Heavy Rain in MARICOPA, ARIZONA
From 29-JUL-17 16:48:00 to 29-JUL-17 18:45:00 (MST-7)
Location: WHITE TANKS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms with locally heavy rain developed over the far western portions of the greater Phoenix area during the afternoon hours on July 29th, and some of the stronger storms affected the area around Luke Air Force Base. At 1725MST a Maricopa County flood control gage measured 0.71 inches within 30 minutes. The gage was located west of the base at the intersection of West Camelback Road and North Citrus Road. Heavy rain of this magnitude led resulted in urban flooding to the west of the air force base: at 1710MST a report from the public was received indicating that streets were flooded curb to curb and local basins and canals were above capacity. The flooding was just west of the loop 303, near West Glendale Avenue. An Urban and Small Stream Flood Advisory was issued for the area at 1648MST due to the heavy rain and it remained in effect through 1845MST.