Phoenix, Arizona was blanketed with a thick wall of dust that darkened the skies and knocked out power to thousands as a major monsoon hit the area Monday night.
The dusty conditions began around 4pm near Interstate-10 in Casa Grande and Eloy, south of Phoenix, according to the National Weather Service.
But the storms quickly made their way north, prompting dust storm warnings just before 5pm that remained in effect until 7pm.
Shocking time-lapse videos showed a wall of dust rolling through the Arizona valley, completely overtaking neighborhoods.
On the ground, residents saw large clouds moving in, bringing some severe thunderstorms with it.
