Snow roller

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

A snow roller is a rare meteorological phenomenon in which cylindrical snowballs are formed naturally as chunks of snow roll down hill or are blown along the ground by wind, picking up further snow along the way, in much the same way that the large snowballs used in snowmen are made.

Excerpt from the Wikipedia article “Snow roller”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Chris Geelhart, employee of the US National Weather Service, Public domain, via Wikimedia Commons.