Avalanche Bulletin
更新日時: 2022/01/22 06:00
Myoko
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Avalanche conditions are high in certain terrain. Look for the trail of a the new avalanche as you climb. Also, look through the traces of winds that blew in the past to see where the wind slabs are forming. It is a good option to start the day on a small slope while checking the condition, avoiding large convexities, isolated terrain, or unsupported areas that the slab is likely to form. If several groups are in similar places, pay attention to the relationship between each other's location and the terrain. Acting in line with the basics of risk management, such as not allowing a large number of people to enter the avalanche terrain and minimizing the time spent in the avalanche terrain, will reduce accidents. Have a nice day
Avalanche Problem
ストームスラブ Storm slab
ウインドスラブ Wind slab
概要
Avalanche
There were no reports of new avalanches yesterday (21st). In the adjacent Hakuba Mountains, multiple avalanches of storm slabs of size 1-1.5 have been observed and reported by human stimulation in the forest zone.
Snowpack
It has been observed that snow in stormy weather from the 20th has increased its strength at low elevations, but there is a lack of information on high elevations, and uncertainty is high. Based on the overall trend of snowfall, snow with low cohesion is located in the lower layer, so it is necessary to consider that a situation where wind slabs are formed near the surface layer requires sufficient vigilance.
Weather
The Japan Meteorological Agency forecasts southern winds, daytime, west winds, fogging, and a maximum temperature of 4 degrees (elevation 13 m) for the Joetsu region of Niigata prefecture. At Myoko Sasagamine (elevation 1310m), the temperature is -15℃ (as of 5:00), 36 cm in the past 12 hours, and 85 cm snowfall in the past 24 hours.
