Avalanche Bulletin
更新日時: 2025/03/29 05:30
Hakuba
Alpine Fair Depends on the amount of snowfall
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At higher elevations, there is some fresh snow on the hard, frozen snow surface. On steep slopes with blowdowns, even very small avalanches can cause slips and falls, so be careful. Also, on slopes that are heavily used by people, the snow surface will be bumpy and frozen, so please ski carefully. On the other hand, at very low elevations, consider the continued danger of glide avalanches. Be on the lookout for collapsing snow blocks remaining on the cliff-like terrain on the sides of the forest roads.
Avalanche Problem
ストームスラブ Storm slab
Snowfall is slight, but there is a hard snow surface under the blowing snow.
全層雪崩 Glide slab
Watch out for unstable snowpack in extreme terrain and other areas. Even if the snow surface is frozen, the inside of the snowpack is still wet enough.
概要
Avalanche
Yesterday (28th), a glide avalanche of a scale that destroyed the avalanche protection fence occurred at the foot of the mountain.
Snowpack
The temperature began to drop last night as the winter pressure system changed. The well-wetted snow surface has frozen hard and a few inches of snowfall is on the ground there. There is no particular forecast for more snowfall in the future. At very low elevations, melting water from several days of high temperatures is still in the snowpack, so do not relax your glide avalanche precautions.
Weather
The Japan Meteorological Agency is forecasting northerly winds, cloudy, occasionally sunny, with a daytime high of 20 °C (418 m elevation) for northern Nagano Prefecture. At AMeDAS Hakuba (elevation 703 m), the temperature is -1.0 °C (as of 5:00 pm), and 2.5 mm of precipitation has fallen in the past 24 hours. At the main ridge (elevation 2,400 m), the temperature is -7.6 °C (as of 5:00), with northwest winds averaging 7 m/s and a maximum of 11 m/s at the moment.
