Avalanche Bulletin
更新日時: 2025/02/01 06:30
Myoko
Alpine Low
Treeline Low
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Be alert for wind slabs that exist in certain terrain. Hard snow surfaces do not mean safety, and attempting to ski cut into hard wind slabs is a high-risk activity. Avoiding terrain with easily triggered terrain features is the best choice. Choose simple terrain that is not affected by wind and you will enjoy great powder snow. Glide cracks are hidden by this new snow. Use extreme caution where the slopes change. The mountain will be crowded today. Please keep an eye on what other groups are doing and use the safe zones well. Have a great weekend.
Avalanche Problem
ウインドスラブ Wind slab
Wind slabs caused by strong northerly winds are expected to form in terrain pockets.
ストームスラブ Storm slab
Note the unstable slab that remains on a very steep slope.
概要
Avalanche
Yesterday (31st), a size 1 slab avalanche was observed with explosives during morning safety operations at the ski resorts. There were few people entering the mountain and no information in the backcountry area.
Snowpack
The snow cover for this storm event was 70-100 cm below treeline. Despite limited observations, there are no noticeably weak areas within the new snow and it is settling well. Due to the continued stormy weather, there is a lack of information at higher elevations.
Weather
The Japan Meteorological Agency is forecasting southerly winds, northerly winds, snow or rain during the day, cloudy from midday, and a daytime high of 5 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -6 °C (as of 4:45 a.m.), with no new snowfall in the past 12 hours.
