Avalanche Bulletin
更新日時: 2022/03/18 05:30
Hakuba
Alpine Fair 降雪強度に留意
Treeline Fair 降雪強度に留意
Below Treeline Good 降雨となっている標高帯にて
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Pay attention to the intensity of the upcoming snowfall. Snow with weak binding force is resting on the hard snow surface, so it is necessary to pay attention to long-legged point avalanches on steep slopes where edges and crampons do not work well, or steep slopes where the amount of fresh snow has increased. Also, be wary of Glide avalanche in places with low elevations where rainfall occurs. Please stay away from slopes with glide cracks. The weather is clearly going downhill. An action plan that takes that into account
Avalanche Problem
全層雪崩 Glide slab
降雨となっている標高帯にて
点発生乾雪雪崩 Dry Loose snow
今後の降雪強度に注意
概要
Avalanche
Yesterday (17th), a very small point-generated wet avalanche was observed at low elevations.
Snowpack
Yesterday (17th), an extremely strong northwest wind blew from the vicinity of the forest limit to the top, and a hard snow surface was exposed in the place where it was hit. On the other hand, where the elevation was lower than the upper part of the below treeline, the snow surface was sufficiently wet in spring conditions. The snowfall from this morning is listed here. Even on the main ridge line, it is falling in a state where the wind is weak. Consider that as snowfall increases, the likelihood of a foot-long dotted avalanche running over hard snow surfaces increases.
Weather
The Japan Meteorological Agency predicts southern winds, cloudy weather, occasional rain or snow, and a high temperature of 8℃ (elevation 418m) for the northern part of Nagano prefecture. At the foot of Mt. Hakuba (elevation 703m), the temperature is 0.6℃ (as of 5:00). The snowfall that has started now is due to the approach of the southern low pressure, and it is forecast that the winter type will temporarily strengthen in the future, and it will be rough on the 19th.
