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
When the cold mountain wind blows, it can suddenly turn chilly even in summer.
Compound of 山背 (やませ, cold northeasterly wind) and 風 (かぜ, wind). The exact historical derivation is uncertain, but the term is used to describe a cold wind descending from mountains.