Avalanche Bulletin
更新日時: 2022/04/05 05:30
Hakuba
Alpine Fair 日中の昇温と日射に留意
Treeline Good 日中の昇温と日射に留意
Below Treeline Good 日中の昇温と日射に注意
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
On steep slopes that are highly affected by solar radiation in all elevation zones, watch out for avalanches due to wet snow. At high elevations, fresh snow until yesterday loosens, and at elevations where there is no fresh snow, it occurs in the form of loosening the snow surface that had been frozen in the morning. Be aware of the occurrence of snowballs and changes in the loosening of the snow beneath your feet. When you stop or take a break, don't forget to check if there are any very steep slopes above you. Also, in high alpine, pay attention to the unstable slabs that have formed in extreme terrain local areas without convex and undersupports. Have a nice day
Avalanche Problem
全層雪崩 Glide slab
グライドクラックの入った斜面に警戒
点発生湿雪雪崩 Wet Loose snow
日中の昇温と日射の影響の強い急斜面に注意
ウインドスラブ Wind slab
ハイアルパインの極端な地形形状にあるスラブに警戒
概要
Avalanche
A point-generated dry snow surface avalanche of size 1.5 was observed in the Alpine area yesterday (4th). This is due to the snow that has continued to fall.
Snowpack
It seems that there has been snowfall of about 5-10 cm in the past 48 hours in the Alpine. As of yesterday, point generation avalanches have occurred due to the fresh snow. The wind direction has changed closer to the northwest, and in the High Alpine it is necessary to pay attention to the slab formed by the wind. Also, due to the high temperature, fresh snow near the forest limit quickly became wet or wet, and it became stop snow. Today's weather has recovered and a significant temperature rise is forecast, so it is necessary to consider the impact.
Weather
The Japan Meteorological Agency predicts northern wind, sunny, morning and evening, cloudy, and a high of 19℃ (elevation 418m) for the northern part of Nagano prefecture. At the foot of Mt. Hakuba (elevation 703m), the temperature is -0.9℃ (as of 5:00).
