From CNN.

Storm chaser and research scientist Sean Waugh has documented softball sized (or greater) hailstones in freefall with an ultra-high-tech camera mounted on a retrofitted research vehicle. The goal – to study and better understand what makes gigantic hail form, and how to better detect it and ultimately improve severe weather warnings. Sean speaks with CNN Meteorologist Derek Van Dam while on the road, capturing imagery of this very impactful and expensive natural phenomenon.

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