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 About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Inside a Baseball-Sized Hailstorm | National Geographic • Inside a Baseball-Sized Hailstorm | Nation... National Geographic / natgeo