Avalanche Bulletin
更新日時: 2023/02/27 06:00
Myoko
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Be alert for terrain formed by wind slabs. Avoid slopes where the terrain is convex or isolated features that are unlikely to support snowpack combined with "terrain traps" below it. High temperatures are forecast during the day, so be aware of changes in the snowpack on steep southern slopes. Stormy snow is in the direction of stabilization, so if you choose simple terrain, you can enjoy a safe and comfortable day of skiing. Please continue to follow the principle behavior of stopping at safe spots, skiing one at a time, and so on, until the descent to the town. Remember that at lower elevations, hard previous debris can be hidden under fresh snow. Have a good day.
Avalanche Problem
ウインドスラブ Wind slab
Be alert for unstable slabs remaining in terrain localities.
ストームスラブ Storm slab
In the upper part of Below Treeline, on the southeast slope with northerly winds, watch out for changes in the upper part of snowpack due to high daytime temperatures and sunny slopes.
概要
Avalanche
Yesterday (February 26), a size 1 avalanche was reported at a ski resort avalanche control. No avalanches have been reported in the Myoko mountain area, but several size 1 slab avalanches have been reported in the adjacent Hakuba mountain area.
Snowpack
This snowfall, which began on February 24 or early morning of February 25, generally ended yesterday afternoon. The overall snowfall amounted to 40-60 cm, and steady sintering has been observed at lower elevations. At higher elevations, strong winds from the north to northwest have been blowing since yesterday, and caution should be exercised for wind slabs today.
Weather
The Japan Meteorological Agency is forecasting northwest winds, then southerly winds, cloudy, sunny before noon, and a maximum temperature of 8°C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Myoko Sasagamine (elevation 1,310 m), the temperature is -7° (as of 4:45 a.m.).
