Fascinating winter phenomenon – Snow rollers

By PerduejnOwn work, CC BY-SA 4.0, Link

A snow roller is a rare meteorological phenomenon in which large snowballs are formed naturally 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. Unlike snowballs made by people, snow rollers are typically cylindrical in shape, and are often hollow since 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. (Source Wikipedia)

By Salvi 5Own work, CC BY-SA 3.0, Link

I, Petr Dlouhý [GFDL, CC-BY-SA-3.0 or CC BY-SA 2.5-2.0-1.0], via Wikimedia Commons

By Slate99slateOwn work, CC BY-SA 3.0, Link

By Perduejn (Own work) [CC BY-SA 4.0], via Wikimedia Commons

9 thoughts on “Fascinating winter phenomenon – Snow rollers

  1. Un’interpretazione fanastica della neve, che fa rimanere a bocca aperta per lo stupore!
    Buon pomeriggio,silvia

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