Time-Lapse Footage of a Supercell Thunderstorm




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A group of stormchasers captured some beautiful and terrifying footage of a supercell thunderstorm developing over Wyoming this weekend.

As far as thunderstorms go, supercells are the least common, but they’re responsible for most of the violent tornadoes in the U.S. In addition to extreme winds, they also dump torrential rain and hailstones that are bigger than golf balls — causing flash floods and a whole lot of damage. Their rising, spinning vortices of air — rotating updrafts called mesocyclones — can reach speeds of over 100 miles an hour (about 160 km/h) and sometimes last hours.

The Basehunters out of Norman, Oklahoma, created this epic time-lapse video from Wright to Newcastle in the northwestern part of Wyoming on Sunday.

Some degree of buoyancy is required, although the most critical ingredients for a supercell are moderate to strong wind speed and directional shear between the surface and about 20,000 feet (or 6 km).

For even more photos, check out tweets from @Basehunters and the Capital Weather Gang’s chasers, @islivingston @markellinwood @wxmeddler.

[Via Washington Post, Slate]

Image: Colt Forney/Basehunters
Video: Basehunters




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