drifting snow
drifting snow
[′drif·tiŋ ′snō]Drifting Snow
(in Russian, pozemok), wind-driven movement of snow immediately above the surface of a snow cover when no snow is falling. Drifting snow usually occurs in freezing weather, when dry snow crystals slide easily over the surface of frozen soil or a snow cover; wind velocities are usually more than 5 m/sec.