noun
cold mountain wind; cold downslope wind
A cold wind that descends from mountains, often associated with the 山背 (やませ) phenomenon in northeastern Japan. The term is somewhat specialized and may be encountered in weather reports or regional descriptions.
See also: 山背
山背風が吹くと、夏でも急に冷え込むことがある。
When the cold mountain wind blows, it can suddenly turn chilly even in summer.