Avalanche Bulletin
更新日時: 2024/12/24 06:00
Hakuba
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Heavy snowfall and high winds continue to cause high avalanche danger. Because of the low temperatures, snow sintering and stabilization progresses only slowly. When visibility is poor, it is harder to notice hazardous elements above you. Use a terrain map to check for large start zones. Large avalanches can reach farther than you think. Also, check for "terrain traps" downslope that can have deadly consequences even for small avalanches. For less experienced groups, today is another good day to enjoy the powder snow in the ski area. If you do so, please observe the boundary ropes. It is important for your safety as well as the safety of the other guests. Have a safe and good day.
Avalanche Problem
ウインドスラブ Wind slab
We need to consider not only what is forming on the surface, but also the possibility that wind slabs that formed some time ago may be hidden by subsequent snowfall. This situation recognition is difficult.
ストームスラブ Storm slab
概要
Avalanche
Yesterday (23rd), a size 1 windslab avalanche was observed during safety control at the ski resort. Most of these were due to westerly winds. There were no reports in the mountain areas due to stormy weather.
Snowpack
Yesterday, the snowfall intensity weakened at one point, but there was a strong north - west wind that blew strong enough to stop the upper lifts. As a result, the heavy snowfall of the past few days has shifted downwind. The resumed snowfall brought 20-30 cm of new snowfall below treeline since last evening.
Weather
Today, a winter pressure pattern is expected to continue, but with the influence of a pressure trough, and the northern part of the country is forecast to be cloudy with occasional snow until late afternoon, with thunderstorms in some areas, and a daytime high of 3 ℃. At 703 m elevation (Hakuba), the temperature is -2.4 ℃ (as of 5:00), and 14 cm of snow has fallen in the past 24 hours.
