Avalanche Bulletin
更新日時: 2024/02/01 07:00
Niseko Yotei Yoichi Shiribeshi
Alpine Fair New snow and winds strong enough to transport the snow will build wind slabs in the alpine. How sensitive and how large the windslab become will need time to assess as the storm continues.
Treeline Fair New snow and winds strong enough to transport the snow will remain a concern at tree line.
Below Treeline Fair The potential for slab formation below tree line and how strong the slab is over the previous snow will need time to assess.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
We are in a strong storm cycle for the next few days and visibility will be poor in the alpine and is advised to know the terrain above you and its hazards. Manage terrain below tree line with caution especially the steep sheltered slopes around the creek terrain traps. Cold management will be important especially in more windy environments where the wind can add to the chill factor. Some say "be bold and start cold" I say "don't be silly and start chilly" Warm layers and proper gear will be essential in these conditions. Talk to your riding partner about layering systems and what extra gear, hot beverages and food they like to stay warm. Take care and enjoy the fresh snow.
Avalanche Problem
ウインドスラブ Wind slab
windslab will be a concern on lee slopes in the alpine and will need time to assess as the storm continues
ストームスラブ Storm slab
Storm slab development has just begun as the storm arrived and will time to asses as the storm continues.
点発生乾雪雪崩 Dry Loose snow
Loose dry will be a concern on steep sheltered slopes.
概要
Avalanche
Windslab avalanches will be a concern in the alpine and at tree line and storm slab avalanches and loose dry avalanches will be a concern below tree line in the the sheltered forest. The sensitivity and in what terrain the slabs develop will need time to asses and will depend on how much snow and wind comes with the storm.
Snowpack
Fresh windslab was observed yesterday as the storm arrived and was gaining intensity. The windslab will continue to build and will need time to assess as the storm continues. Below in the upper half of the snow pack remain a crust on south aspects in certain parts of the zone and will need time to see how the new snow bonds.
Weather
We are in a strong northwest flow for the region and with that will be snow and northwest winds. Winds will be strong at ridge tops and more moderate at lower elevations. The temps will be cold for this season in the minus double digits.
