A rare meteorological phenomenon where wind rolls snow into cylindrical shapes. Often compared to 雪まくり.
See also: 雪まくり
雪俵は、強風と適度な湿り気のある雪の条件で形成される。
Snow rollers form under conditions of strong wind and moderately wet snow.
朝、庭にいくつもの雪俵が転がっていた。
In the morning, several snow rollers were lying in the garden.
Compound of 雪 (yuki, 'snow') and 俵 (tawara, 'straw bag'), from the resemblance of the rolled snow to a traditional straw rice bag.