Avalanche Bulletin
更新日時: 2025/04/03 05:30
Hakuba
Alpine Low Uncertainty in the amount of snowfall
Treeline Low Uncertainty in the amount of snowfall
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At very high elevations, watch out for very steep gullies and other areas where snow is accumulating. Also, remember that although there is not a lot of snowfall, the larger the terrain, the more likely it is that an avalanche will be magnified. Snow is melting at lower elevations. Stay clear of slopes with glide cracks and move quickly when passing under them, keeping a wide berth between you and your companions.
Avalanche Problem
ストームスラブ Storm slab
In high alpine, the snowfall has been about 10-15 cm over the past few days. Check slab conditions on steep slopes.
全層雪崩 Glide slab
Watch out for collapsing unstable snow blocks that remain on extreme terrain.
概要
Avalanche
No new avalanches were reported yesterday (2nd). This is partly due to the low number of people entering the mountain.
Snowpack
The weather has been similar for the past few days. Light rain at lower elevations and light snowfall at very high elevations. At least 5 cm of snow has fallen in Alpine by this morning. The snowfall is occurring in light wind conditions, but due to the high temperatures, slabs are forming quickly. Please check the actual amount of new snow and the condition of the slabs. Snow is melting below treeline.
Weather
The Japan Meteorological Agency is forecasting northerly winds, rain, cloudy skies before noon, and a daytime high of 14 °C (418 m elevation) for northern Nagano Prefecture. At AMeDAS Hakuba (elevation 703 m), the temperature is 3.5 °C (as of 5:00 pm) and 4.5 mm of precipitation has fallen in the past 24 hours. At the main ridge (elevation 2,400 m) it is -4 °C (as of 5:00) with winds around 1 m/s.
