Scattered thunderstorms developed across the south central deserts during the afternoon hours on July 13th, and they primarily affected the greater Phoenix metropolitan area. Several of the storms produced microburst winds in excess of 60 mph, damaging trees, signs and buildings across the greater Phoenix area. The storms prompted the issuance of many Severe Thunderstorm Warnings. In addition, the storms produced locally heavy rains with rainfall rates in excess of 2 inches per hour. The rain led to widespread urban flooding, and prompted the issuance of several Urban and Small Stream Flood Advisories as well as Flash Flood Warnings.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 17:05:00 to 13-JUL-14 17:25:00 (MST-7)
Location: WEST CHANDLER
Magnitude: 56.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered strong thunderstorms affected the southeast portions of the greater Phoenix area, including Chandler, during the late afternoon hours on July 13th. Some of the storms produced gusty and damaging microburst winds estimated to be in excess of 60 mph. At 1705MST, a trained weather spotter located 3 miles to the northwest of the Chandler Fashion Center mall reported downed tree branches and a roof blown off of a house. The damage was close to the intersection of Ray and Kyrene roads. Shortly thereafter, another trained spotter about 1 mile east at the intersection of Ray and McClintock Roads reported that an apartment carport was blown down. Additionally, 3 inch diameter branches were blown off of trees in the area.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 16:45:00 to 13-JUL-14 16:55:00 (MST-7)
Location: CHANDLER
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms affected much of the greater Phoenix area, including the community of Gilbert, during the late afternoon hours on July 13th. The stronger storms produced gusty and damaging microburst winds estimated to be in excess of 60 mph. A trained weather spotter in Gilbert reported trees downed near the intersection of Ray Road and Cooper. Another trained spotter nearby in Gilbert reported trees downed near the intersection of Warner Road and McQueen.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 17:10:00 to 13-JUL-14 17:15:00 (MST-7)
Location: HELENA
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Scattered thunderstorms affected much of the greater Phoenix area, including southeast valley communities such as Tempe and Chandler, during the late afternoon hours on July 13th. The stronger thunderstorms generated gusty and damaging microburst winds, estimated to be in excess of 60 mph. At about 1710MST, a report was received from an amateur radio operator in south Tempe who reported that multiple trees were blown down near the intersection of Warner and McClintock roads. At nearly the same time, a trained weather spotter about 1 mile north of the Chandler Fashion Center mall reported a number of trees blown down with diameters of up to 13 inches.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 16:27:00 to 13-JUL-14 16:30:00 (MST-7)
Location: HIGLEY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms affected much of the greater Phoenix area, including southeastern valley communities such as Gilbert, during the late afternoon hours on July 13th. The stronger storms produced damaging microburst winds in excess of 50 mph. A trained weather spotter 1 mile southeast of Gilbert reported that gusty outflow winds broke off a large branch which fell onto a car, damaging the vehicle. This occurred near the intersection of Loop 202 and Higley Road.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 16:45:00 to 13-JUL-14 16:45:00 (MST-7)
Location: GILBERT
Magnitude: 60.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered to numerous thunderstorms affected the greater Phoenix area, including southeast valley communities such as Gilbert, during the late afternoon hours on July 13th. The stronger storms produced damaging microburst outflow winds estimated to be in excess of 60 mph. A trained weather spotter in Gilbert reported that several trees were uprooted and in addition, a light pole and some street signs were blown down near the intersection of Val Vista and Elliot Roads.

Heavy Rain in MARICOPA, ARIZONA
From 13-JUL-14 16:45:00 to 13-JUL-14 18:50:00 (MST-7)
Location: FALFA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms moved across the southeastern portion of the greater Phoenix area during the late afternoon hours on July 13th, affecting communities such as Tempe, Chandler and Gilbert. The storms produced heavy rain with rainfall rates occasionally in excess of 2 inches per hour. Urban flooding was reported by several trained spotters in the area, and a Flash Flood Warning was issued for the area. At 1648MST, a trained spotter in Gilbert estimated that 2 inches of rain had fallen in a short time near the intersection of Val Vista and Warner roads. At 1705MST, a trained spotter 4 miles southeast of Tempe measured nearly one inch of rain within 8 minutes at the intersection of Warner and McClintock Roads, and he indicated that water was covering the road. At approximately the same time another trained spotter 2 miles northwest of the Chandler Fashion Square mall reported street flooding at the intersection of Ray and McClintock Roads. He estimated that one inch of rain had fallen in the area.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 16:43:00 to 13-JUL-14 16:43:00 (MST-7)
Location: HIGLEY
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Scattered thunderstorms developed across the greater Phoenix area during the late afternoon hours on July 13th, and some of the stronger storms produced gusty microburst winds. According to a broadcast media report, a wind gust of 59 mph was measured in Higley, just to the west of Phoenix Mesa Gateway airport.

Thunderstorm Wind in MARICOPA, ARIZONA
From 13-JUL-14 17:27:00 to 13-JUL-14 17:27:00 (MST-7)
Location: HIGHTOWN
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong thunderstorms developed across the southeast portions of the greater Phoenix area during the late afternoon hours on July 13th, and some of them produced gusty and damaging microburst winds. According to an amateur radio report, a large highway sign was blown down in Chandler at the intersection of Interstate 10 and Chandler Boulevard. Peak wind gusts were estimated to be in excess of 60 mph.