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Published on Jun 27, 2012
National Geographic explorer and storm researcher Tim Samaras set out to document tornadoes and lightning on a trip through Oklahoma. But a destructive hailstorm with some hailstones nearly softball-sized was a surprise highlight of this day in the field. Joining Samaras on this day were photographer Carl Young and National Geographic photographer Carsten Peter. ➡ Subscribe: http://bit.ly/NatGeoSubscribe
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