Avalanche Bulletin
更新日時: 2024/01/29 05:30
Hakuba
Alpine Low Unknown amount of snowfall since yesterday afternoon
Treeline Good
Below Treeline Good Keep in mind the rising temperature and solar radiation
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Steady snow and good weather make this a great day for long tours, including alpine areas. Bring plenty of water and sun protection. Avalanche danger is low on this day, but use safe terrain and continue to practice smart group management. It takes a very long time for humans to develop good behavioral habits. The low elevation exposes different hazards than in the normal season, such as snow bridge breaking in the gully. Please act with a safety margin. Also, remember that on very steep slopes that receive a solar radiation, the possibility of wet snow avalanches appears in the afternoon. Have a good day.
Avalanche Problem
ウインドスラブ Wind slab
The main ridge has been experiencing northwest winds of 10-15 m/hr until this morning. If there has been some snowfall since yesterday afternoon, consider the possibility that it is moving and forming wind slabs and act accordingly.
概要
Avalanche
No new avalanches were observed yesterday (28th).
Snowpack
The snow from the previous stormy weather (from the evening of the 23rd to the evening of the 25th) has been settling further and is in the process of stabilizing. Also, the snow that has fallen since then has been light in quantity and has not been a major problem. There was some cloud cover and some snowfall in Alpine yesterday afternoon. Today, please pay attention to the bonding of that snow with the old snow. On the south facing slopes, the new snow should be on top of the Melt-Freeze crusts formed by yesterday's sunny slopes.
Weather
High pressure is expected to prevail today. The Japan Meteorological Agency is forecasting northerly winds, clear skies, and a daytime high of 6 °C for northern Nagano Prefecture. At 703 m elevation, the temperature is -10.0 °C (as of 5:00 a.m.), with no new snowfall in the past 12 hours.
