pA powerful hailstorm brought flooding to Denver, Colorado, on Wednesday, September 5.ppVideo shared by Breanna Diegel and Spencer Diegel shows the hailstorm and one car that was swept along by the floodwater. Fox 31a reported Spencer rushed out of the house to help save the driver of the car.ppDenver’s Lakewood neighborhood was one of the areas worst affected by the storm, with residents turning to social media to share images of banks of hailstones and severe flooding.