Follow members of a National Geographic team as they careen into the hearts of storms and take a closer look at tornadoes and the phenomenal forces that drive them.
Tornadoes peeled roofs off homes, tossed big-rigs in the air, and left flattened tractor trailers. Tornado-chasers there covered seven hours and 150 miles (241 kilometers) tracking the supercell thunderstorm that produced this cloud formation.


Supercell thunderstorms are known to spawn tornadoes with winds exceeding 200 mph (322 kph).
Samaras's cameras looked into a part of the tornado long hidden from scientists using Doppler: the bottom 30 feet (9 meters).





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