更新日時: 2025/02/18 05:30
Alpine Low No information on snowfall and wind effects
Treeline Low
Below Treeline Fair
信頼度:○ good □ Fair △ Low
Dangerous avalanche conditions due to heavy snowfall. Be careful of triggering storm slabs that are forming on steep slopes. We recommend that you stay below treeline on slopes and on ridges. Even if you are on a loose slope, watch out for avalanches from large avalanche start zones overhead. When reassembling after skiing, please try to leave the avalanche terrain and stay as safe as possible on the ridge tops. Stormy weather is forecast for the coming days. Please be aware of changes in snowfall amounts and wind-driven snow movement.
Beware of steep slopes
Unknown as there was no observation information yesterday (18th).
Due to solar radiation and elevated temperatures on the 16th, crusts formed on the southerly direction and on all slopes below about 1400 m, and were buried by snowfall from noon on the 17th. Low-density snowfall may have buried the boundary surface, and caution should be exercised in bonding. At lower elevations, crusts are thin and weak due to weak nighttime cold. The middle part of the snowpack is settling and bonding.
As of 5:00 am, 33 cm of snow had fallen in the past 24 hours at 700 m elevation at AMeDAS Fujiwara, and 62 cm had fallen near 1300 m. Strong snowfall is continuing at present. The Japan Meteorological Agency is forecasting snow and occasional cloudiness in the foothills of northern Gunma Prefecture due to a strong winter pressure pattern and the influence of a pressure trough and cold air.