<p>A monsoon storm swept through Phoenix, Arizona, on Monday, July 30, downing power lines</a> and prompting road closures.</p><p>The National Weather Service in Phoenix forecast</a> storms, blowing dust and heavy rain to remain in place throughout the day.</p><p>This video shows a highway in Phoenix, Arizona, barely visible as a result of the severe dust. A signpost is seen blowing in the wind with force. Credit: Allen Oshana via Storyful</p><br />
