snow roller


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snow roller

[′snō ‚rō·lər]
(hydrology)
A mass of snow, shaped somewhat like a lady's muff, rather common in mountainous or hilly regions; it occurs when snow, moist enough to be cohesive, is picked up by wind blowing down a slope and rolled onward and downward until either it becomes too large or the ground levels off too much for the wind to propel it further; snow rollers vary in size from very small cylinders to some as large as 4 feet (1.2 meters) long and 7 feet (2.1 meters) in circumference.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Weston's hay wagons were damaged, his snow roller, which is used to pack down snow for the sleigh, was out across the field in a swamp.
Snow Rollers in Wiltshire by Brian Bayliss BRIAN BAYLISS
What you observed are known as snow rollers, and they require some very specific conditions to form.