WATCH: Massive dust storm overtakes city

Posted: 9:58 AM, Aug 30, 2016
Updated: 2016-08-30 10:05:03-04

Not all dust storms are created equal. And this recent dust storm near Phoenix was so big it enveloped a city in dust and sand.

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Dust storms are a common sight during the Southwest United States' monsoon.

They form when winds from thunderstorms pick up sand, dust and dirt, forming a wall of dust and dropping visibility to near zero.
