Avalanche Bulletin
更新日時: 2022/02/13 05:30
Hakuba
Alpine Fair
Treeline Fair
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
It is a day to be aware of local instability within a certain slope. There are also consecutive holidays, and the use of slopes is large, so some people may try to slide on the location of the no track that remains on the slope local along the major route. In that case, please consider whether there are any conditions described in the section on snow accumulation, and whether there is a “trap of terrain” at the bottom of it. The place where the unstable snow is present may be a small place, but remember that triggering an avalanche and being swept away can lead to serious consequences. Please do appropriate group management while considering relationships with other groups within the same terrain. Have a nice day
Avalanche Problem
ウインドスラブ Wind slab
地形局所にあるスラブ
概要
Avalanche
No the new avalanche were observed yesterday (12th).
Snowpack
Pay attention to areas on shady steep slopes that are higher than the upper part of the below treeline and are not affected by westerly winds. Recrystallized snow due to radiative formation observed on the 11th is hidden beneath the slab and can trigger. Last night, the direction of the wind near the main ridge line changed to the west, but it continues until morning in a relatively weak state.
Weather
The Meteorological Agency forecasts the northern part of Nagano prefecture with northern winds, sunny weather, later, cloudy, snow from the evening, and a maximum temperature of 4℃ (elevation 418m). At the foot of Mt. Hakuba (elevation 703m), the temperature is -10.4℃ (as of 5:00), and there is no new snowfall in the past 12 hours.
