Ski Areas in Yamagata Yamagata is a region of Japan offering snow sports in 2 Japanese Ski Resorts, including Tengendai Kogen and Yonezawa. Snow Forecasts for Yamagata Snow Forecasts for Ski Resorts in Yamagata Ski Resort Forecast 48HrFriSatSunMonTueWedThu 7Day Tengendai Kogen4cm2in 29cm12in Yonezawa4cm2in 29cm12in Yamagata Ski Resorts Ski Resorts in Yamagata Ski Resort Pistes Top Beginn. Interm. Experts Tengendai Kogen-1,820m5,971ft--- Yonezawa-800m2,625ft---