Avalanche Bulletin
更新日時: 2025/03/30 05:30
Hakuba
Alpine Fair
Treeline Good
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Watch out for wind slabs forming in terrain pockets at higher elevations. 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 enough. Underneath the 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.
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
No new avalanches were reported yesterday (29th).
Snowpack
At higher elevations, the hard, frozen snow surface is covered with yesterday's fresh snow (about 5 cm). On the other hand, at lower elevations, new snow is on a wet snow surface. At higher elevations, strong northerly winds have redistributed the new snow, exposing hard snow surfaces in some areas, while in other areas the snow has accumulated.
Weather
The Japan Meteorological Agency is forecasting northerly winds, cloudy, sometimes sunny, snowy in places before noon, and a daytime high of 9 °C (418 m elevation) for northern Nagano Prefecture. At AMeDAS Hakuba (elevation 703 m), the temperature is -1.9 °C (as of 5:00 pm), and there has been 1 mm of precipitation in the past 24 hours. At the main ridge (elevation 2,400 m), the temperature is -11.6 °C (as of 5:00), with northerly winds averaging 10 m/s and maxing out at 17 m/s.
