Scattered to numerous thunderstorms developed across the greater Phoenix metropolitan area during the morning hours on August 5th and due to high levels of moisture in the atmosphere, the storms quickly generated very heavy rains. Some of the heaviest rains affected the northeastern portion of the greater Phoenix area including communities such as Paradise Valley, Carefree, Cave Creek and Scottsdale. A variety of mesonet weather stations recorded morning rainfall totals ranging from 1.5 inches to over 2.6 inches, and the excessive rain led to episodes of flooding and flash flooding. A number of roads were closed due to flooding and in one case a U-Haul truck was stuck in flood waters. Flash Flood and Areal Flood Warnings were issued due to the heavy rains.

Flash Flood in MARICOPA, ARIZONA
From 05-AUG-16 08:30:00 to 05-AUG-16 11:15:00 (MST-7)
Location: CACTUS
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with very heavy rain developed across the northeastern portion of the greater Phoenix metropolitan area during the morning hours on August 5th; some of the stronger storms produced peak rain rates in excess of 2 inches per hour. Very heavy rain and flash flooding occurred 7 miles southeast of Deer Valley and to the northeast of Phoenix Mountain Park. At 0930MST local broadcast media reported flash flooding which resulted in  one car being stuck in flood waters near Cave Creek and Hatcher Roads. One person needed to be rescued from the stranded automobile. A Flash Flood Warning was issued for the area at 0930MST and the warning remained in effect through 1115MST.

Flash Flood in MARICOPA, ARIZONA
From 05-AUG-16 08:30:00 to 05-AUG-16 11:15:00 (MST-7)
Location: SCOTTSDALE MUNI
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Scattered thunderstorms developed across the northeast portion of the greater Phoenix metropolitan area during the morning hours on August 5th, and the stronger storms produced locally heavy rains with peak rain rates well in excess of 2 inches per hour. The heavy rain led to episodes of flash flooding over portions of north Scottsdale which resulted in a number of road closures. According to a trained weather spotter in north Scottsdale, 1 inch of rain fell in 20 minutes ending at 0931MST and this resulted road closures at Hayden Loop and Frank Lloyd Wright roadway due to flooding. In addition, the center lane of Frank Lloyd Wright road at the Scottsdale airport was flooded. Finally, the right line of Northsight Boulevard at Frank Lloyd Wright road became flooded due to the intense and heavy rains.

Heavy Rain in MARICOPA, ARIZONA
From 05-AUG-16 08:30:00 to 05-AUG-16 11:00:00 (MST-7)
Location: PHOENIX DEER VLY ARP
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms with locally heavy rain developed across the northeast portion of the greater Phoenix metropolitan area during the morning hours on August 5th. Some of the heaviest rain fell across portions of north Scottsdale and areas east of Deer Valley. A mesonet station 5 miles east of Deer Valley measured 1.54 inches of rain as a storm total ending at 1100MST. Earlier in the same area, a trained weather spotter reported curb-to-curb flooding located about one quarter mile south of the intersection of Cave Creek Road and Union Hills Road. The flooding occurred at 0906MST.

Flash Flood in MARICOPA, ARIZONA
From 05-AUG-16 09:00:00 to 05-AUG-16 11:15:00 (MST-7)
Location: SCOTTSDALE MUNI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with very heavy rains developed across the far northeast portion of the greater Phoenix metropolitan area during the morning hours on August 5th. Some of the heaviest rains occurred in communities such as north Scottsdale and Paradise Valley. As of 1000MST, multiple mesonet weather stations measured storm totals of 1.5 inches or more in the area; one station near Desert Highlands Golf Club measured at total of 1.54 inches. The heavy rains led to episodes of flash flooding which resulted in road closures and vehicles trapped in flood waters.  At 1000MST local broadcast media reported a U-Haul truck stuck in flood waters 6 miles north of north Scottsdale, near the intersection of North Scottsdale Road and East Happy Valley Road. At the same time another broadcast media reported roads closed due to flash flooding 7 miles south of Carefree, near the intersection of East Jomax and North Pima roads. No injuries were reported due to the flash flooding. A Flash Flood Warning was issued for the area beginning at 0920MST and it remained in effect through 1115MST.