Avalanche Bulletin
更新日時: 2023/01/26 06:00
Myoko
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Dangerous avalanche conditions. Choose terrains with gentle slopes that are less affected by wind. It will take some more time for this large accumulation of snow to settle. When traveling, consider whether there are any large start zones above you. The forest is more dangerous with the "terrain traps" hidden by this snowfall. Please choose a safe route, assuming that the hole in the gully bottom has not been plugged.
Avalanche Problem
ウインドスラブ Wind slab
Those forming in terrain pockets at higher elevations. Below the treeline, be especially cross-loading area.
ストームスラブ Storm slab
It will take a few days for the storm instability to settle. Watch out for slabs that form on slopes where the terrain does not support snowpack, such as convexity.
概要
Avalanche
Yesterday (January 25), a size 1 slab avalanche was observed in the ski area under avalanche control. However, due to the heavy storm, no information has been received in the mountain areas.
Snowpack
Snowfall, which began on the morning of January 24, has reached 50-70 cm and is being affected by severe westerly winds.
Weather
The Japan Meteorological Agency is forecasting westerly winds, then northerly winds, slightly stronger, snow, and a maximum temperature of 4°C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -10° (as of 4:45 a.m.).
