Avalanche Bulletin
更新日時: 2022/01/12 05:30
Hakuba
Alpine Fair
Treeline Good
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
This is a dangerous avalanche condition. Even at low elevations, try to avoid large steep slopes. Also, even if you are in a below treeline, you need to be vigilant enough to be on the outbreak zone and the running path in it. Please check the topographic map etc. to see if there is a large occurrence area above you. If the route is active at a lower elevation but passes through the valley floor with a large outbreak at the top, at the end of the tour, the risk is high because it is exposed to avalanche hazards (hazards) for a long period of time. The fresh snow area in the ski resort is a fun day. If you want to enjoy it there, adhere to the glide zone. It's also for your safety and for the safety of other visitors.
Avalanche Problem
ストームスラブ Storm slab
概要
Avalanche
No new avalanches were observed yesterday (11th) reported.
Snowpack
Yesterday, due to the passage of the low pressure, there was rainfall in places that were generally lower than around 1,200 m above sea level. From now on, at higher elevations, there is a hard melting frozen layer on the surface exposed to solar radiation, and the heavy snowfall since last evening is placed on top of the daytime snowfall on the shady surface. This fresh snow is affected by winds from west to northwest. Even if the elevation is raised, it is not a storm, so it is necessary to consider that a fairly thick slab is formed on the leeward side of the ridge line.
Weather
The Japan Meteorological Agency is forecasting northern Nagano prefecture's northern wind, snow, cloudy from afternoon to time, and a maximum temperature of 1℃ (elevation 418m). At the foot of Mt. Hakuba (elevation 703m), the temperature was -4.6℃ (as of 5:00), and there was snowfall of about 15 cm since last night. At an altitude of around 1,000 m, snowfall has been about 40 cm in the past 12 hours, and the number is increasing on the north side of Hakuba Valley. The Meteorological Agency has continuously announced a heavy snow warning (up to 30 cm in 12 hours) for the northern part of Nagano prefecture at 4:15.
