These are fascinating and rare snow formations that you have to see to believe. AMAZING!
Snow roller is a rare meteorological phenomenon in which large cylinders of snow are naturally formed as chunks of snow are blown along the ground by wind, picking up material along the way, in much the same way that the large snowballs used in snowmen are made. But unlike snowballs made by people, snow rollers are typically cylindrical in shape, and are often hollow. The inner layers, which are the first layers to form, are weak and thin compared to the outer layers and can easily be blown away, leaving what looks like a doughnut or Swiss roll.
Snow rollers happen with the combination of lying snow and high wind speeds, mostly in North America and Northern Europe, and they can be as small as a tennis ball or they can be as large as two feet across – depending on how strong the wind is and how smooth the surface of the snow is. Gravity can also assist snow roller formation. An inclined surface often needs just a little shove from the wind to get snow rollers in motion.
Source: Amusing Planet
Photo: Jah
Snow rollers happen with the combination of lying snow and high wind speeds, mostly in North America and Northern Europe, and they can be as small as a tennis ball or they can be as large as two feet across – depending on how strong the wind is and how smooth the surface of the snow is. Gravity can also assist snow roller formation. An inclined surface often needs just a little shove from the wind to get snow rollers in motion.
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Source: Amusing Planet
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These are fascinating and rare snow formations that you have to see to believe. AMAZING!
Reviewed by Eli Snow
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9:30 AM
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Reviewed by Eli Snow
on
9:30 AM
Rating:
Snow rollers happen with the combination of lying snow and high wind speeds, mostly in North America and Northern Europe, and they can be as small as a tennis ball or they can be as large as two feet across – depending on how strong the wind is and how smooth the surface of the snow is. Gravity can also assist snow roller formation. An inclined surface often needs just a little shove from the wind to get snow rollers in motion.
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