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4 years 3 months ago

Biggest hailstone ever arrives in Colorado

North America's heaviest hailstone ever might also be its most-traveled. A 1-pound, 15-ounce hailstone that fell in Vivian, South Dakota, in July has been taken to National Center for Atmospheric Research in Boulder, about 370 miles away. Researchers there say they plan to study the giant stone. It's...

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