Birth of a Tornado 

May 21, 2013—Two days before a tornado—with winds clocked at over 200 miles per hour—tore through suburban Oklahoma City on May 20, National Geographic explorer and storm researcher Tim Samaras captured this video of a tornado forming in south-central Kansas. EDITOR\'S NOTE: Tragically, just 10 days after this video was recorded, Tim Samaras died in an Oklahoma tornado, along with his son Paul, who shot this video, and Carl Young, a frequent partner of Tim\'s. Read here for more on his death. And click here for a compilation of Tim\'s videos on National Geographic.

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