Avalanche Bulletin
更新日時: 2025/02/08 06:30
Myoko
Alpine Low
Treeline Low
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Dangerous avalanche conditions continue. Even though the snowfall has weakened, wind slabs are still forming due to strong winds. Wind slabs that have just formed are easy to break and dangerous. In addition, wind slabs on top of fresh snow that has not yet gained full strength can destabilize the snowpack. This is a day that requires careful observation of the terrain, route setting with a large safety margin, and conservative decision making. Inexperienced groups are advised to enjoy the day in the ski resort.
Avalanche Problem
ストームスラブ Storm slab
Beware of steep slopes, even below treeline
ウインドスラブ Wind slab
概要
Avalanche
Due to stormy weather yesterday (7th), no observation information was received in the mountains.
Snowpack
The storm snow that began on February 4 is about 150-180 cm. In the below treeline, it has been observed that the lower layer of storm snow is sintering and slowly gaining strength. Snowfall is weakening, but extremely strong westerly winds are blowing overhead. Caution should be exercised in the formation of wind slabs due to this.
Weather
The Japan Meteorological Agency is forecasting westerly winds, strong, snowy conditions, and a daytime high of 3 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -11 °C (as of 5:45 a.m.), with 11 cm of snow having fallen in the past 12 hours and 26 cm in the past 24 hours.
