Avalanche Bulletin
更新日時: 2022/02/21 04:28
Kagura Tanigawa Hotaka
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
It is a situation where action is difficult due to heavy snowfall, and it is a condition that requires careful route selection even in the lower elevation zone. Note the triggering of storm slabs on steep slopes. It is necessary to pay attention to triggering in places where the slope changes rapidly or on open steep slopes with few forests. Even if you are at a low slope in the forest belt, be aware of the possibility of avalanches from the overhead outbreak zone. It is forecast that snowfall will continue in the future. Pay attention to changes in snowfall and wind effects and act cautiously.
Avalanche Problem
ストームスラブ Storm slab
概要
Avalanche
There was no report of observing an avalanche yesterday due to poor visibility
Snowpack
There were layers with low density and poor coupling in the snowfall until the 19th, and surface avalanches were observed on the 20th due to human stimuli and spontaneous occurrence. The layer with poor coupling was buried deeper due to the stormy weather this time, so there is a possibility that the scale will increase when an avalanche occurs. The amount of snowfall increases in the high elevation zone, so you need to be more careful.
Weather
The temperature at AMeDAS Fujiwara as of 4:00 -7.3℃. Snowfall in the past 24 hours is 33 cm. Snowfall continues around the area. According to the Japan Meteorological Agency's announcement at 22:00 on the 20th, it is a strong winter-type atmospheric pressure arrangement, and it is expected that strong cold will flow into the sky before noon on the 21st, and the strong winter-type atmospheric pressure arrangement will continue. For this reason, there is a forecast that strong snow will fall in the mountains in the northern part of Gunma prefecture and there will be heavy snowfall.
