<p>A woman recorded the moments when heavy rains washed street signs away in Las Vegas, Nevada, on July 25, a result of flash flooding.</p><p>Alexandria Berriman took the images during a severe thunderstorm. The National Weather Service</a> issued a flash-flood warning for Las Vegas and Boulder City on Tuesday afternoon.</p><p>Motorists were told to avoid driving in areas around heavy flooding. Credit: Alexandria Berriman via Storyful</p><br />
