Drew Furnes shared this video of a flash flood as it happened in Crystola on July 8, 2014. Thankfully it was small, but you can see how quickly the water level changed. The fear whenever a flash flood warning is issued is that this might happen only on a much larger and more destructive scale.
Sen. Jeff Flake/Twitter
WRIC, Richmond Police Department
Jason Merritt/Getty Images for Comedy Central
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!