Avalanche Bulletin
更新日時: 2024/12/29 06:00
Hakuba
Alpine Low
Treeline Low
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Avalanche danger remains high due to heavy snowfall. Continued low temperatures will allow snow sintering and stabilization to progress only slowly. Avoid large open slopes, even at lower elevations. Potentially large avalanches are possible. Even if you are in a wooded area, consider whether there is a large start zone above you and pay close attention to localized start zones or tracks in the wooded area. Also, avoid entering valleys with large upper start zones. A size 3 avalanche can flow down to an elevation difference of 1,000 m in a very normal manner. Avalanches of this size often run up the opposite slope to the side of the outbreak. Being in the tree line does not make you feel safe. For the inexperienced, the inside of a ski area is a fun situation. Ski patrols manage avalanches on a daily basis, so please observe the areas where you are allowed to ski, and pair up with a fellow skier when skiing in fresh snow areas.
Avalanche Problem
ストームスラブ Storm slab
Pay attention to terrain with little support.
ウインドスラブ Wind slab
Winds, which had briefly weakened, have picked up again since early this morning. New wind slabs are very fragile and caution should be exercised.
概要
Avalanche
No new avalanche bulletin was reported yesterday (28th), but information is limited due to the small number of people entering the mountain.
Snowpack
The snowpack brought about by the snowfall cycle that began on the 26th is slowly settling, but there was new snowfall again yesterday, mainly in the morning, and even skiers are diving down to their thighs. Due to the low density of the snow on the surface, the snow is easily carried downwind and forms soft slabs. The snowfall, which had been in a lull for a while, started again at the beginning of the day and is now on top of it.
Weather
Today, a winter pressure pattern is expected to continue, but with the influence of a pressure trough and cold air. The forecast is cloudy in the northern part of the country, with snow over a wide area from late afternoon to early evening, with thunderstorms in some areas before noon and in the evening, and a daytime maximum temperature of 4 °C (39 °F). At Amedas Hakuba (elevation 703 m), the temperature is -4.2 °C (as of 5:00 pm), with 9 cm of snow having fallen in the past 24 hours. The Nagano District Meteorological Observatory is forecasting 40 cm of snowfall along the mountains of the Ohoku region in the next 24 hours until 18:00 on the 29th, at 19:30 on the 28th.
