Avalanche Bulletin
更新日時: 2022/04/04 05:30
Hakuba
Alpine Low
Treeline Fair
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Pay attention to the instability of fresh snow until this morning at Alpine. The amount seems to be small, so it is necessary to be vigilant for slipping due to the hard snow surface hidden under thin fresh snow. Even on the main ridge line, it is not cold to about -5 degrees Celsius, so the instability of fresh snow is in the direction of quickly resolving. On the other hand, in places with lower elevations than near the forest limit, although there was little rainfall until this morning, it has been moving at a higher temperature, so we act considering the possibility that the slope with glide cracks has become unstable Please do it.
Avalanche Problem
全層雪崩 Glide slab
グライドクラックの入った斜面から離れ、落ち残りの雪ブロックに注意を。
ストームスラブ Storm slab
降雪量の確認を。
概要
Avalanche
No new avalanches were reported yesterday (3rd).
Snowpack
In the observation at the foot of the mountain, there was not as much precipitation as predicted by this morning, but the temperature has remained at plus 3℃ or higher throughout the night, and snow melting is progressing. It seems that there was a snowfall of about 5 cm in the Alpine. This snowfall is affected by weak south-to-southwest winds. In the future, if the wind direction changes to the northerly and the snow on the snow surface begins to move, it is necessary to be alert to the slabs that form locally where the terrain is difficult to support the snow cover.
Weather
The Japan Meteorological Agency predicts southern wind, later, north wind, rain or snow, cloudy, and a high temperature of 12℃ (elevation 418m) from the afternoon for the northern part of Nagano prefecture. At the foot of Mt. Hakuba (elevation 703m), the temperature is 3.2℃ (as of 5:00). The Nagano Regional Meteorological Observatory is predicting 15 mm of precipitation and 5 cm of snowfall for the northern part of Nagano prefecture in 24 hours until tomorrow (5th) morning.
