A meteorological phenomenon where wind rolls snow into cylindrical shapes resembling straw bales (俵). Also known as 雪まくり.
See also: 雪まくり
Snow rollers form under conditions of strong wind and moderately moist snow.
Compound of 俵 (たわら, 'straw bale') and 雪 (ゆき, 'snow'), from the bale-like shape of the snow rolls.