Avalanche Bulletin
更新日時: 2025/01/13 07:00
Niseko Yotei Yoichi Shiribeshi
Alpine Fair Wind effected and redeposited snow still exists in the alpine.
Treeline Fair Calm weather and many days without new snow have allowed for the snow pack to settle and gain strength. Warm air and sun today will weaken surface snow.
Below Treeline Fair With the freezing level forecasted to rise to 250m mid day, steep, low elevation, shaded slopes may rapidly warm, increasing the likelihood of avalanches.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
With sun and rapidly warming weather conditions, the surface snow near tree line and below could become thick and weak making for challenging riding and increased likelihood of loose snow avalanches.
Avalanche Problem
ウインドスラブ Wind slab
Use normal caution. Look out for small pockets of wind slab that may exist on lee and cross loaded gullies.
点発生乾雪雪崩 Dry Loose snow
With warming temperatures and light new snowfall in the Southern forecasted area, point release avalanches may become more reactive.
点発生湿雪雪崩 Wet Loose snow
Sun, warm air, light winds, wet snow or rain, rapidly weakens surface snow.
概要
Avalanche
No new avalanches have been reported.
Snowpack
The surface snow is highly variable depending on elevation aspect and inclination. There is a thin dusting of cold dry snow which fell overnight in the Shiribetsu area. Good riding conditions can be found on shaded and sheltered lower angled slopes. Crusty snow is present on windward ridges in the alpine and crusty melt freeze conditions at the tree line and below on steep solar facing slopes. The mid and lower snowpack is settled and continues to gain strength. Shallow glide cracks are opening as the snowpack slowly moves down hill.
Weather
Partly cloudy skies., light winds, rising freezing level (250m), and light wet snow showers forecasted late in the afternoon. More sun is expected in the north region.
