cold northerly winter wind from the Rokko Mountains
A local term for the cold, dry wind that blows down from the Rokko mountain range in winter, especially felt in the Kobe area.
I walked through the streets of Kobe while the cold wind from the Rokko Mountains was howling.
In winter, the Rokko oroshi wind cuts right through you.
Standard modern spelling using kana for おろし.
Kanji spelling using 颪 (a kokuji for mountain wind); less common but still seen.
Compound of 六甲 (Rokko, the mountain range) and おろし (wind blowing down a mountain). The kanji 颪 is a kokuji specifically for this type of wind.