Supercellstorm Forms in Wyoming

WRIGHT, Wyo. — Storm chasers in Wyoming captured amazing photos and video of a supercell thunderstorm forming May 18, 2014.

Supercellstorm

Courtesy: Basehunters.com/YouTube.

Basehunters, a stormchasing group from Norman, Okla., posted the timelapse video above on YouTube.

The National Weather Service defines supercells as, “highly organized storms characterized by updrafts that can attain speeds over 100 miles per hour, able to produce extremely large hail and strong and/or violent tornadoes, downdrafts that can produce damaging outflow winds in excess of 100 mph – all of which pose a high threat to life and property.”

Tom Clark, Stormtracker 16 Chief Meteorologist, points out that the greenish color you see in the cloud comes from sunlight passing through a massive build-up of ice and large hailstones.

Weather Adventures also captured images of the Wyoming supercall and posted a photo on their Facebook page.

From Wikipedia:

“A supercell is a thunderstorm that is characterized by the presence of a mesocyclone: a deep, persistently rotating updraft. For this reason, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms (supercell, squall line, multi-cell, and single-cell), supercells are the overall least common and have the potential to be the most severe. Supercells are often isolated from other thunderstorms, and can dominate the local weather up to 32 kilometres (20 mi) away.

Supercells are often put into three classification types: Classic, Low-precipitation (LP) and High-precipitation (HP). LP supercells are usually found in climates that are more arid, such as the high plains of the United States, and HP supercells are most often found in moist climates. Supercells can occur anywhere in the world under the right pre-existing weather conditions, but they are most common in the Great Plains of the United States in an area known as Tornado Alley and in the plains of Argentina, Uruguay and southern Brazil.”

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