Avalanche Bulletin
更新日時: 2025/02/03 04:30
Kagura Tanigawa Hotaka
Alpine Fair 今後の降雪のタイミングが不明
Treeline Fair
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At higher elevations where snow bonding is less likely to progress, keep an eye out for induced storm slabs that remain on extremely steep slopes. Warmer temperatures are forecast during the day. Be aware of the possibility of loose snow avalanches from large southerly steep slopes. When regrouping after skiing, be sure to leave the avalanche terrain and regroup in the safest place possible, such as on a ridge top. Be aware of other groups above and below you.
Avalanche Problem
ストームスラブ Storm slab
Extremely steep slopes noted
点発生湿雪雪崩 Wet Loose snow
Note large steep slopes that increase in size when they occur.
概要
Avalanche
Yesterday (2/2), there was a report of a naturally occurring loose snow avalanche (size 1.5) and a human-triggered slab avalanche (size 1.5) observed on an extremely steep southerly slope. Localized glide avalanches were also reported on the southerly slopes.
Snowpack
The snowfall from the stormy weather since the 30th has been settling and gaining strength. No significant vulnerability has been reported at the boundary between the interior of this snowfall and the old snow. Snowfall with low density and large grain size has been observed on the surface of the snowpack, and caution should be exercised in bonding with future snowfall. The snow surface is expected to melt and form crusts on southerly slopes at lower elevations due to yesterday's sunny slopes.
Weather
As of 4:00, the temperature at AMeDAS Fujiwara is -0.8°C. No new snowfall in the past 12 hours. The Japan Meteorological Agency is forecasting cloudy skies over northern Gunma Prefecture with snow showers in some areas in the evening, as the area will be covered by high pressure but subject to the effects of a pressure trough and cold air.
