Nature & Environment
Rare self-rolling snow balls found in UK
By
T.K. RandallJanuary 9, 2010 ·
15 comments
Image Credit: NOAA
Large self-rolling snowballs are a phenomenon usually found in remote, frozen regions but now they are turning up in the UK.
In something akin to the crop circle phenomenon you might be forgiven for wondering what could possibly cause snowballs to form by themselves in snow-covered fields around Britain. The answer lies in a rare phenomenon in which a precise combination of conditions can cause cylindrical formations of snow or "self-rolling snowballs" to appear.
Also known as snowrollers, snow bales and snow doughnuts, they form mostly in unusual conditions created by a precise combination of snow, ice, wind, temperature and moisture on the prairies of North America. But this week's frozen weather has allowed the snow cylinders to make a freak appearance in the UK.
Source:
Telegraph |
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