Avalanche Bulletin
更新日時: 2025/02/11 06:00
Kagura Tanigawa Hotaka
Alpine Low
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Beware of induced storm slabs on steep slopes. There were reports of very large avalanches observed yesterday. Be careful of triggering in open areas with few trees or where the slope changes abruptly. We recommend that you stay in areas with slopes that are slower and on ridges. Even if you are on a loose slope yourself, watch out for avalanches from large avalanche start zones overhead. When regrouping after skiing, be sure to remove yourself from the avalanche terrain and try to do so in the safest place possible, such as on a ridge top.
Avalanche Problem
ストームスラブ Storm slab
Beware of steep slopes
概要
Avalanche
A number of spontaneous and human-triggered loose snow avalanches (size 1-1.5) were reported yesterday (10th) on steep slopes in the forested area. A report of a large slab avalanche (size 3) was observed in the Tanigawadake area.
Snowpack
Snowfall during this stormy weather was more than 200 cm in many places. Snowfall with low density and large granularity has been buried by this snowfall and bonding should be noted. The upper portions within this snowfall are also reacting to human stimulation because bonding has not progressed. On the southerly slopes, crusts are deeply buried, so be careful of bonding.
Weather
As of 6:00 am, the temperature at Amedas Fujiwara is -3.8℃. There has been 11 cm of snowfall in the past 12 hours, 7 cm in the past 12 hours near 1300 m elevation, and 17 cm in the past 12 hours at Ameda Yuzawa, and it is still continuing. The Japan Meteorological Agency is forecasting cloudy skies and snow showers until late afternoon in the foothills of northern Gunma Prefecture due to the effects of a pressure trough and cold air, although the area will gradually be covered by high pressure.
