<p>A monsoon storm swept through Phoenix, Arizona, on Monday, July 30, causing widespread damage and leaving more than 120,000 people without power, ABC15 Arizona reported</a>.</p><p>The National Weather Service in Phoenix issued</a> a flash flood warning for Maricopa County on Monday, as well as a dust storm warning</a> for Maricopa and Pinal Counties</a>.</p><p>This video, shared by Shannon Elsner, shows a tree falling in Phoenix, Arizona, on Monday evening. Credit: Shannon Elsner via Storyful</p><br />
