Avalanche Bulletin
更新日時: 2022/03/02 05:30
Hakuba
Alpine Low
Treeline Low
Below Treeline Fair 日中の昇温と日射の影響に留意
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
If you want to raise the elevation, check the formation of a windslab on which the old snow rests On slopes affected by solar radiation, it rests on a hard snow surface that tends to be a sliding surface. If you can see the formation of the slab, try to avoid places with convex or isolated shapes that can easily become trigger points, and look for lines with reduced slopes. Also, there are many places where hard snow surfaces are exposed, so be careful about slipping. In places with very low elevations, think about the effects of warming during the day. Snow blocks in extreme terrain are prone to collapse. Don't forget to be vigilant to the top of yourself.
Avalanche Problem
ウインドスラブ Wind slab
概要
Avalanche
Yesterday (1 day), a point occurrence avalanche of size 1 wet snow was observed at a very low elevation.
Snowpack
The snow on the surface of the snow cover is settling due to the heat rise and solar radiation in the past few days. Higher elevations on the north side are still dry, but melting and freezing crusts form on the south side. On top of this, snowfall until this morning is listed at a high altitude, but the amount is estimated to be about 10 cm. However, in Alpine, very strong northwest to west winds are blowing, so the formation of wind slabs is strongly suspected, and caution is needed especially on the southeast side.
Weather
The Japan Meteorological Agency predicts northern Nagano prefecture's northern wind, cloudy, occasional sunny weather, and a maximum temperature of 7℃ (elevation 418m). At the foot of Mt. Hakuba (elevation 703m), there was a temperature of 1.3 degrees Celsius (as of 5 o'clock) and snowfall of 3 cm in the past 24 hours.
