Avalanche Bulletin
更新日時: 2023/01/31 06:30
Myoko
Alpine Fair Be on the lookout for wind slab formation.
Treeline Fair Be on the lookout for wind slab formation.
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Even if the weather improves, this is a day for caution. Be on the lookout for newly formed wind slabs and storm slabs. Starting the day with smaller terrain to check snow conditions is a good idea. The "terrain traps" in the forest are also filling in. However, remember to imagine what is under the snowpack and choose a safe line. Principle behaviors such as stopping in a safe place and skiing one at a time will reduce the number of accidents. Have a good day.
Avalanche Problem
ウインドスラブ Wind slab
ストームスラブ Storm slab
概要
Avalanche
Yesterday (January 30), several size 1 loose snow avalanches due to ski cuts were reported on very steep slopes.
Snowpack
Yesterday (January 30), snowfall intensified from noon, and by this morning, 20-30 cm of snow had fallen below treeline. This new snowfall is being driven by strong northwesterly winds at higher elevations.
Weather
The Japan Meteorological Agency is forecasting northwest winds, then southerly winds, snow, cloudy before noon, then clearing, and a high of 4°C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Myoko Sasagamine (elevation 1,310 m), the temperature is -10° (as of 6:15 a.m.).
