Strong thunderstorms developed across portions of La Paz County during the afternoon hours on August 10th; the stronger storms produced strong damaging microburst winds as well as locally heavy rainfall. Intense rainfall led to episodes of flash flooding which primarily affected the interstate 10 corridor from Quartzsite through Brenda. At 1617MST Flash flooding resulted in the closure of highway 95 at milepost 104 in Quartzsite; earlier at about 1500MST the eastbound lane of Interstate 10 in Quartzsite was closed due to flooding. The strong storms also produced damaging microburst winds in Quartzsite which downed power lines and shredded metal sheet roofs; damaging winds also damaged RVs east of Brenda. No injuries were reported due to the wind damage or flooding.

Thunderstorm Wind in LA PAZ, ARIZONA
From 10-AUG-17 13:59:00 to 10-AUG-17 14:00:00 (MST-7)
Location: BRENDA
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Strong thunderstorms developed across portions of La Paz County during the afternoon hours on August 10th and some affected the Interstate 10 corridor near the town of Brenda. According to a delayed reported received from the public, at about 1400MST strong winds blew the roof off of an RV at the Gateway Ranch RV Resort about one mile east of the town of Brenda. The report came from a renter at the resort who also reported that an awning was blown away and tangled. Multiple trees were also reported to be downed by the strong winds. The damaging wind gusts were estimated to be as high as 75 mph. No injuries were reported due to the strong winds.

Thunderstorm Wind in LA PAZ, ARIZONA
From 10-AUG-17 15:20:00 to 10-AUG-17 15:20:00 (MST-7)
Location: QUARTZITE
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Scattered thunderstorms developed across portions of La Paz County during the afternoon hours on August 10th and some of the stronger storms affected the Interstate 10 corridor near the town of Quartzsite. One of the stronger storms that impacted Quartzsite produced damaging microburst winds estimated to be as high as 70 mph. According to a report from the public, at 1520MST strong winds downed power lines along Main Street in Quartzsite. In addition, the winds shredded off a sheet metal roof from the building across the street from McDonald's and pieces of the roof became caught up in the remaining power lines that were left standing. This report was made via the use of social media and including at least one picture of the damage. A Severe Thunderstorm Warning was in effect at the time of the damage; it was issued at 1456MST and was in effect through 1530MST.

Flash Flood in LA PAZ, ARIZONA
From 10-AUG-17 14:30:00 to 10-AUG-17 17:15:00 (MST-7)
Location: QUARTZSITE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms developed across portions of La Paz county during the early afternoon hours on August 10th and some of the stronger storms produced locally heavy rains which led to an episode of flash flooding along the Interstate 10 corridor east of Quartzsite. Based in radar rainfall estimates, peak rain rates approached 2 inches per hour, more than sufficient to cause flash flooding. At 1455MST the Arizona Department of Highways reported that the right (eastbound) lane of Interstate 10 was closed due to flash flooding between mileposts 33 and 34. This was near the intersection of  Interstate 10 and U.S. highway 60 about 3 miles southwest of the town of Brenda. A Flash Flood Warning was in effect at the time of the flooding; it was issued at 1421MST and was in effect through 1715MST.

Flash Flood in LA PAZ, ARIZONA
From 10-AUG-17 16:10:00 to 10-AUG-17 19:30:00 (MST-7)
Location: QUARTZSITE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms developed across portions of La Paz County, particularly along the Interstate 10 corridor, during the afternoon hours on August 10th. Some of the stronger storms produced intense rainfall with peak rain rates approaching 2 inches per hour. The very heavy rain led to episodes of flash flooding in the town of Quartzsite and along U.S. highway 95. At 1617MST the Arizona Department of Highways reported that highway 95 was closed in both directions at milepost 104 in Quartzsite due to the flash flooding and flooding was also reported across the town of Quartzsite. A Flash Flood Warning was in effect at the time of the flooding; it was issued at 1527MST and it remained in effect through 1930MST.

Flash Flood in LA PAZ, ARIZONA
From 10-AUG-17 18:30:00 to 10-AUG-17 20:45:00 (MST-7)
Location: QUARTZSITE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms developed across portions of La Paz county, including the area around Quartzsite, during the evening hours on August 10th and some of the stronger storms produced locally heavy rainfall with peak rain rates up to 2 inches per hour. The heavy rains were sufficient to cause episodes of flash flooding near and to the southwest of the town of Quartzsite. Heavy rain falling on nearby mountains such as the Dome Rock Mountains resulted in rapid runoff which filled area washes such as the Tyson Wash and drained into subdivisions leading to rapid flooding. According to a public report, heavy rainfall on Sawtooth and La Cholla mountains, just northeast of the Dome Rock Mountains, led to heavy runoff which filled a wash that flowed through Rainbow Acres and produced flash flooding. This occurred at about 2000MST in an area around 5 miles to the southwest of Quartzsite. No injuries were reported due to the flooding. A Flash Flood Warning was issued for the area beginning at 1650MST and ending at 2045MST.