Avalanche Bulletin
更新日時: 2025/03/30 06:00
Myoko
Alpine Fair
Treeline Fair
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At higher elevations, watch out for wind slabs that are forming in terrain localities. Yesterday's snowfall was slight, but the wind has redistributed the snow and deposited it thickly in some areas. Underneath the new snow is a hard snow surface, so even a small avalanche can cause a slide if the slope is steep. Underneath the fresh snow is a hard, rough snow surface. It is easy to fall down, so please ski carefully. When passing under glide cracks, move quickly and keep a good distance from your companions. Even if the likelihood of occurrence is low, hitting a snow block can have serious consequences. Have a good holiday. This is the end of the avalanche bulletin for this area today. Thanks to everyone who contributed information.
Avalanche Problem
ウインドスラブ Wind slab
Watch out for unstable slabs formed in terrain pockets.
全層雪崩 Glide slab
Watch out for collapsing snow blocks that remain in extreme terrain. Stay away from slopes with glide cracks.
概要
Avalanche
Yesterday (29th), a size 2 snow block collapse was observed in the treeline below. Dry snow sluffs were also reported.
Snowpack
At higher elevations, the hard, frozen snow surface is covered with yesterday's fresh snow. On the other hand, at lower elevations, new snow is on a wet snow surface. At higher elevations, the westerly winds are redistributing and accumulating fresh snow in some terrain pockets and exposing hard snow surfaces in others.
Weather
The Japan Meteorological Agency is forecasting westerly winds, later, northwesterly winds, cloudy, rain or snow before noon and in the evening, with a daytime high of 8 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -4 °C (as of 4:45 a.m.), with no new snowfall in the past 12 hours.
