Avalanche Bulletin
更新日時: 2023/03/18 05:30
Hakuba
Alpine Fair Keep an eye on the amount of snowfall in the future
Treeline Fair Keep an eye on the amount of snowfall in the future
Below Treeline Good Note the amount of rainfall
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
The risk of glide avalanches is increased at lower elevations. Keep a sufficient distance from slopes with glide cracks. At higher elevations, it is snowing. Although snowfall amounts are still low, please assume that the bonding of new snow with old snow is "bad" and act accordingly. Also, there is a hard melt-freeze crust under the new snow, so even a very small avalanche can trigger a slip drop. In gully terrain, there are more and more holes. The low visibility makes it difficult to notice such hazards. It is important to act with an adequate safety margin.
Avalanche Problem
全層雪崩 Glide slab
Stay well away from slopes with glide cracks. Be alert not only to large slopes, but also to smaller terrains such as forest road slopes.
点発生乾雪雪崩 Dry Loose snow
ストームスラブ Storm slab
Snow is falling with winds from the southwest.
概要
Avalanche
No new avalanche reports were received yesterday (March 17).
Snowpack
Weak rainfall and snow began early in the morning. At lower elevations, the rainfall will reduce the strength of glide-cracked slopes, so extreme caution is needed. On the other hand, at higher elevations, snowfall amounts of 5-10 cm are likely to have occurred, with higher amounts in the southern part of the Hakuba Valley. This new snow is on top of a hard Melt-Freeze crust. The bonding of its boundaries needs to be checked.
Weather
The Japan Meteorological Agency is forecasting northerly winds, rain or snow, cloudy overnight, and a high of 4°C (418 m elevation) for northern Nagano Prefecture. The temperature is 2.9°C (as of 5:00 pm) at Amedas Hakuba (elevation 703 m). The Nagano District Meteorological Office is forecasting 15 cm of snowfall in the 24-hour period from 6:00 a.m. on the 18th to 6:00 a.m. on the 19th.
