Avalanche Bulletin
更新日時: 2024/01/23 06:00
Myoko
Alpine Low
Treeline Low
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Although the overall avalanche danger level is low at this time, the weather conditions continue to worsen as fierce winds have already begun to blow on the main ridge. Be on the lookout for slabs that will form as the snowfall begins. Also, be very careful of slides on hard snow and holes in stream bottoms, in addition to avalanches. For less experienced groups, this is a good day to enjoy the nicely pressurized runs in the ski area.
Avalanche Problem
ウインドスラブ Wind slab
Note slabs formed by strong winds with the onset of snowfall.
概要
Avalanche
Yesterday (22nd), several size 1-2 glide avalanches were observed at very low elevations. No information has been received at higher elevations.
Snowpack
In areas lower in elevation than around 2,100 m, Melt-Freeze crusts 1-3 cm thick are forming on the snow surface. In addition, at elevations higher than around 2,100 m, low-density snow is hiding under wind slabs, a situation that is responsive to human stimulation, as observed yesterday in the adjacent Hakuba area.
Weather
Today, the area is expected to be affected by a pressure trough and strong cold air. The Japan Meteorological Agency is forecasting slightly strong westerly winds, snow, and daytime high temperatures of 4 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -4 °C (as of 4:45 a.m.), and 1 cm of snow has fallen in the past 12 hours.
