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A supercell thunderstorm is characterized by a sustained and powerful rotating updraft. These storms originate in unstable air accompanied by a particular type of changing wind direction at various altitudes in the atmosphere; a common combination supportive of supercells is a southerly or southeasterly wind near ground level and a southwesterly or westerly wind higher up in the atmosphere.

This combination of changing wind directions creates a horizontal rolling motion in the lower atmosphere. The same rapidly rising air motions that form the thunderstorm turn this horizontal rotation into a vertical rotation, and in the case of this particular storm, this rotation is spectacularly evident in the circular striations, or layers, visible in the cloud structure.

The structure of supercell thunderstorms allows rain and hail to fall well away from the source of the warm, unstable air fueling the storm, so these storms do not choke on their own rain-cooled air. In some cases this allows supercell thunderstorms to stay intact for hours, covering tens or even hundreds of miles. In the process they can produce giant hail, very high winds, and tornadoes.
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Photoshop Battle of the Day: A Random Dodge Challenger Beat the Snowstorm This Week, And Reddit Decided to Have Some Fun

This week, most of Georgia was a panic after receiving barely an inch like 30 feet of snow. Many cars wound up in ditches on the side of the road, including some pretty heavy duty haulers. One driver of a Dodge Challenger was unfazed though, as he sped bravely through two semi-trucks careening off the road. If any major Hollywood studio out there needs a stunt driver, you know who to call...

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By Unknown
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It's been so cold recently so why not try and freeze some things! Night Hawk In Light decided to freeze some giant bubbles in the cold.

The result?
Wispy shreds of frozen soap that look like plastic.

By Unknown
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While the east coast continues to get blasted by more winter weather, there are plenty of people who are able to look on the cheery side of the snowy chill. During a recent news report in New Jersey, a man brightens things up with an energetic (and impromptu) air guitar performance.

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ClimateChange.org's video "Climate Name Change proposes in a satirical-yet-serious way that we change the way we name storms. The video's suggestion of naming storms after political policy makers that deny climate change is tied to their actual petition here.

Hurricane Paul Ryan does have a nice ring to it.

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Via n-a-s-a
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The latest images from NASA's GOES-13 satellite shed a new light on Hurricane Sandy's northbound journey across North America (shown at top center).