Avalanche Bulletin
更新日時: 2022/03/12 07:00
Niseko Yotei Yoichi Shiribeshi
Alpine Good 孤立した地形内に硬度の高い局所的なウインドスラブがあります。Stiff pockets of wind slab remain in isolated terrain.
Treeline Good
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Since we are entering the spring season, as the temperature rises, the snow surface gets wet during the day and becomes stop snow at low altitudes. Glide cracks are also growing, so please do not get into the lower part of such slopes. As we head into spring and warmer temperatures lower elevations will become sticky in the Heat of the day. Glide cracks continue to grow and we should avoid any time spent below them.
Avalanche Problem
ウインドスラブ Wind slab
アルパインエリアの風下側にはウインドスラブが残っていますが、硬く、誘発はしずらい状態です。スラブの形成が疑われる滑らかな雪面を持つ誘発点となりやすい場所、たとえば凸状部は避けるようにしてください。On lee aspects in the alpine pockets of wind slab remain that are stiff and hard to trigger. Avoid natural trigger points such as convex rolls where smooth wind-pressed snow can be observed.
概要
Avalanche
No new avalanches have been reported. No new activity has been reported.
Snowpack
Previously reported wind slabs are beginning to settle down, and they are becoming less likely to trigger. Freezing altitude has increased, and thaw-freezing cycles are intensified at lower elevations. Previously reported wind slabs have begun to settle and are hard to trigger. Rising freezing levels have promoted a melt-freeze cycle at lower evaluations
Weather
In the future, the low pressure will pass and it is forecast to move eastward, so there seems to be snowfall accompanied by temporary weak winds on the weekend. It is said that the freezing altitude will be about 700m during the day. As a low-pressure system crosses Japan and moves to the East we will have brief periods of Snow Flurries over the Weekend and Low Wind Speeds. Freezing levels will reach above 700m during the day.
