Avalanche Bulletin
更新日時: 2022/03/12 05:30
Hakuba
Alpine Good
Treeline Good
Below Treeline Good 日中の昇温と日射の影響に留意
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Positive temperatures continued until the wee hours of today in places with low elevations, and the cold this morning was also weak. After this, the same temperature rise as yesterday is forecast, so please consider that the slope with glide cracks is in a very unstable state, and act. Also, pay attention to point avalanches of wet snow during the day. Wet snow is so heavy that you can easily scoop up your feet. Think about whether there is a steep slope above where you are, or if there are any terrain traps below. Very strong westerly winds are blowing in the Alpine, so pay attention to the new slabs that have formed locally in the terrain. It's a day where you can enjoy the long tour, which is the real thrill of spring skiing. Have a nice day
Avalanche Problem
全層雪崩 Glide slab
標高の低い場所のグライドクラックの入った斜面、極端な地形に残る雪ブロックに注意
点発生湿雪雪崩 Wet Loose snow
日中の昇温と日射の影響に留意
ウインドスラブ Wind slab
昨晩からとても強い西風が吹いています。
概要
Avalanche
A point occurrence avalanche of wet snow has been observed in the below treeline yesterday (11th).
Snowpack
There was a significant temperature rise yesterday (11th), and 12.1 degrees Celsius was recorded at 15:00 at the foot of the mountain (elevation 703m), and the temperature was positive even near the forest limit. As a result, the snow surface became very wet on slopes affected not only by rising temperatures but also by solar radiation, and water floated at low altitudes, resulting in stop snow. There is dry snow on the shady slopes at high altitudes, and very strong westerly winds have been blowing since last night. It is necessary to be vigilant for wind slabs formed locally in the terrain.
Weather
The Japan Meteorological Agency predicts southern winds, later, north winds, sunny, sometimes cloudy, and a high temperature of 17°C (elevation 418m) for the northern part of Nagano prefecture. At the foot of Mt. Hakuba (elevation 703m), the temperature is -5.4℃ (as of 5:00), and there is no new snowfall in the past 48 hours.
