Term: Snow roller Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary


Definition: Roll-like snow formation, caused by a unique combination of snow, wind, temperature and moisture  NSIDCCryosphere 

A rolled-up, cylindrical mass of snow, 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 it either becomes too large or the ground levels off too much for the wind to propel it farther. Snow rollers vary in size from very small cylinders to some as large as 1.5 m long and more than 2 m in circumference.  AMSglossary 

Cylindrical masses of snow formed, more often in hilly regions, when moist snow is driven by the wind and then rolled onward.  WMOMeteoterm