Description given on Youtube:
Hail forms with an uplift that involves air rising, cooling and condensing as the temperature goes down. Discover how hail can get larger through winds that pick it up and coat it with more ice with help from the chair of a department of environmental studies in this free video on hail.
Expert: Jack Hall
Bio: Dr. Jack Hall is the department chair in the department of environmental studies at the University of North Carolina at Wilmington.
Filmmaker: Rendered Communications