The AP reports that the massive dust cloud, also known as a "haboob," was around 5,000 feet when it arrived in Phoenix, but radar data reveals that it reached heights anywhere from 8,000 to 10,000 feet high prior. The storm appeared to be around 50 miles wide in some areas, KSAZ-TV reported.
The dust storm originated in Tucson, and was a part of Arizona's monsoon season.
According to CNN, the dust storm prompted the Federal Aviation Administration to issue a ground stop on flights at Phoenix's Sky Harbor Airport for about an hour and 15 minutes. At its peak, the storm left 10,000 customers without power, Jenna Shaver of the Arizona Public Service told CNN.