2025.02.11 Tuesday

Moiwa Mountain base -8℃, 7cm new snow over the last 12hrs. Moiwa 800m: -10.1℃, NW7.5m/s, 50-80cm cornice and snowdrift development. Mikaeri 750m: -9℃, WNW2.8m/s, increasing snow depth, good visibility. Annupuri 1100m: -13.2℃, WNW10.1m/s, strong winds, snowdrift development. Hirafu Hanazono 1000m: -12.6℃,  W4.6m/s. Coastal data: Benkei Cape NW12m/s, Kamui Cape W10m/s, 1014hPa, wave 1.1m. 

A westerly wind picked up from 2am, forming unstable slabs on SW slopes at 1000m, reaching 80cm in places and easily breaking in tests. The upper 40cm (and increasing) is not consolidated . The avalanche risk on the SW slopes at 1100m is High. The avalanche risk on the East side at Hirafu Hanazono is not high, but will increase if the wind and snow get stronger. Gate opening is not decided yet, please follow the patrols instructions. If peak gates are opened, many people will enter Kozan no Sawa(Backbowl) without considering the danger. According to Heinrich's Law, we warn people of the danger, everyone thinks it won't be me, it will be somebody else and eventually an accident will occur. Our warnings are based on objective data. Snow changes every day. What was good yesterday does not necessarily mean that it will be good today. The snow in the forest is a little heavy due to the wind. Have a nice day, the snow is not too bad.

Quote: Niseko Avalanche Information