Avalanche Bulletin
更新日時: 2023/03/14 05:30
Hakuba
Alpine Low
Treeline Low Note the effects of daytime temperatures and solar radiation
Below Treeline Fair Note the effects of daytime temperatures and solar radiation
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
It is a "spring day" with snowpack intensity decreasing during the day. However, today is a day of a struggle between these two forces: a cold north wind that takes heat away from the snow surface, and a decrease in snow cover intensity due to rising temperatures and solar radiation. Please monitor the changes in the strength of the snowpack surface layer carefully. Snow is melting at lower elevations, and areas that were passable in February may have broken up or the ground is exposed. In such places, it is easy to relax with upward caution. Watch out for glide avalanches and snow block collapses.
Avalanche Problem
点発生湿雪雪崩 Wet Loose snow
Keep in mind daytime temperatures and solar radiation
全層雪崩 Glide slab
Recent rainfall and high temperatures have caused melting water.
概要
Avalanche
A size 1 loose snow avalanche was reported yesterday (March 13). Information is limited due to the low number of people entering the mountain.
Snowpack
Yesterday morning (March 13), rain fell at the foot of the mountain and snow fell at higher elevations. Based on the amount of precipitation, it is estimated that there was about 5-10 cm of new snow at the Treeline. Please check the bonding of new snow and old snow. A northerly wind is forecasted to blow in today, and temperatures are not expected to rise much. However, once the sunny slopes begin to penetrate the southern slopes, the intensity of the snowpack is expected to rapidly decrease.
Weather
The Japan Meteorological Agency is forecasting northerly winds, cloudy, sunny before noon, and a high of 12°C (418 m elevation) for northern Nagano Prefecture. At Amedas Hakuba (elevation 703 m), the temperature is -0.3°C (as of 5:00).
