Storm Chasers: Inside the Tornado

More than 1,000 tornadoes touch down in the U.S. every year. When most people are running away, one team of storm chasers heads straight for the action.

EDITOR'S NOTE: Along with his son, Paul, and storm chaser Carl Young—his longtime collaborators—National Geographic explorer and storm chaser Tim Samaras died in a tornado in El Reno, Oklahoma, on May 31, 2013. He devoted his life to unlocking the mysteries of extreme weather.

More Video of Storm Chasers:

Storm Chasers: Tim Samaras in Tornado Alley

Storm Chasers: Why I Chase Tornadoes

Storm Chaser's High-Tech Video of Tornadoes and Lightning