更新日時: 2022/01/23 05:30
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度:○ good □ Fair △ Low
Note the instability that remains in certain topographic localities. Pay attention to places where snow cover is prone to instability, such as convex or extreme shapes without support. Don't forget that the direction of the wind has changed since yesterday afternoon in the Sawa-shaped or Bowl topography, which is located at a high altitude. In such places, the conditions are often different on the left and right sides of the terrain, which is easy to induce when you hit the unstable side with a ski or snowboard. Even if the induced avalanche is small, if there are trees such as shrubs in the runway, it will be fatal, so it will also be a “trap in the terrain”. Have a nice day while doing group management that makes good use of the terrain.
風の影響を受けていない極端な地形にて
南西~西寄りの風で移動した雪によるスラブ
No the new avalanche were observed yesterday (22nd).
It has been observed that the low-density snow that began to fall on the 20th and responded sensitively within the day has almost dissolved at low elevations, but it is still necessary to be vigilant in the terrain at high elevations. It's there. Also, at high elevations, wind slabs are formed due to northwestern winds, but since yesterday (22nd) afternoon, the direction of the wind in the sky has changed from west to southwest, so it is necessary to consider the effect.
The Japan Meteorological Agency is forecasting southern winds, sunny weather, cloudy morning, and a maximum temperature of 3℃ (elevation 418m) for the northern part of Nagano prefecture. At the foot of Mt. Hakuba (elevation 703m), the temperature is -11.5℃ (as of 5:00), and there is no new snowfall in the past 36 hours.