Avalanche Bulletin
更新日時: 2024/02/17 06:00
Myoko
Alpine Low
Treeline Low Be aware of rising temperatures during the day and the effects of solar radiation
Below Treeline Fair Be aware of rising temperatures during the day and the effects of solar radiation
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
It is a day when the risk of avalanche remains relatively high only in specific terrain. If you look for a simple slope that is not affected by the wind, you can enjoy a comfortable slide. On the other hand, be wary of slabs that form in areas where the terrain is difficult to support snow, such as isolated terrain. If there is a "terrain trap" below the slope, even a small avalanche can have a fatal outcome. Due to the rainfall until yesterday, snow melting progressed in low-lying areas. Please prepare your tour plans assuming that your usual route may be difficult to navigate. Crowds are expected on the mountain. Please use wise group management, such as using safe terrain and thinking about those above and below you. have a nice day.
Avalanche Problem
ウインドスラブ Wind slab
The strong winds that we had yesterday have subsided. Remember that old wind slabs that have been hardened over time and have become harder and harder to induce will also change as the strong daytime sunlight reduces their hardness and makes them easier to induce.
ストームスラブ Storm slab
Watch out for unstable snow that remains on very steep slopes without the influence of the wind.
点発生湿雪雪崩 Wet Loose snow
Be careful of snow changes during the day on steep slopes that are strongly affected by rising temperatures and solar radiation.
概要
Avalanche
Yesterday (16th), a size 2 glide avalanche was observed, which is believed to have occurred by morning.
Snowpack
The snow from yesterday's stormy weather has formed hard wind slabs in areas affected by the wind and soft accumulations in areas not affected by the wind. Under the new snow is a variety of hard old snow, crusts, and wet snow. Please check the condition of these boundary surfaces carefully.
Weather
The Japan Meteorological Agency is forecasting a southerly wind, daytime and northerly winds, clear skies, and a daytime maximum temperature of 9 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -7 °C (as of 4:45 a.m.), with no new snowfall in the past 12 hours.
