Visualization
ES1805  Examine an animation of hail forming.

A hailstone begins as a frozen raindrop or ice crystal. Strong updrafts of warm air and downdrafts of cool air move the frozen particle up and down through different levels of the storm cloud. The hailstone encounters different forms of moisture as it moves, and layers of frozen ice particles accumulate on its surface. The resulting hailstone has a layered structure.

  !   Click the image to see the animation.