Avalanche Bulletin
更新日時: 2024/02/27 04:00
Kagura Tanigawa Hotaka
Alpine Low Little information on snowfall and wind
Treeline Fair Little information on snowfall and wind
Below Treeline Fair Little information on snowfall and wind
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Conditions require careful terrain selection. Storm slabs are expected to form on steep slopes due to snowfall that has intensified since midnight. Be careful of sudden changes in slopes and of triggering from areas with few trees. Wind slabs are also expected to form on steep slopes on the ridge and just below the ridge due to the strong winds that have been blowing since yesterday. Due to the low snowpack, "terrain traps" such as deep streams, cliffs, rocks, and standing trees are exposed, which can increase damage even if the size of the avalanche that occurs is small. Care should also be taken to avoid falling into gully. Winter conditions are forecast to continue. Please be aware of changes in snowfall and wind effects during the day.
Avalanche Problem
ストームスラブ Storm slab
Beware of triggering in places where the slope changes abruptly
ウインドスラブ Wind slab
Be careful of steep slopes on the ridge and just below the branch ridge.
概要
Avalanche
Yesterday (26th), a human-triggered slab avalanche size 1 was reported on the southwest slope near 1400m.
Snowpack
More than 30-40 cm of new snowfall, influenced by strong winds, will be placed on top of the old snow. There is a layer of low density at the boundary with the old snow and bonding should be noted. No significant vulnerability in the middle to lower layers of the snowpack has been reported. The effect of the recent rainfall is expected below about 800 m elevation.
Weather
As of 4:00, the temperature at AMeDAS Fujiwara is -3.3℃. New snowfall in the past 24 hours was 25 cm, and snow continues to fall with winds. The Japan Meteorological Agency is forecasting cloudy skies and occasional snow until early afternoon in the foothills of northern Gunma Prefecture due to a persistent high pressure pattern in the west and low pressure in the east and the influence of a pressure trough.
