Avalanche Bulletin
更新日時: 2024/01/06 06:00
Niseko Yotei Yoichi Shiribeshi
Alpine Fair Moderate to strong winds reported in the alpine in the last 24hrs with new snow available for transport and windslab formation.
Treeline Fair New snow in the last 24hrs for possible storm slab formation in more sheltered zones at tree-line and windslab in more exposed tree-line zones.
Below Treeline Fair Possible storm slab formation in sheltered forest slopes.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Early season conditions still exits and is best to take caution and time to navigate safely. Talk to your riding partner about what you see as snow conditions and the risk will be quite different depending on elevation and aspect. Have fun and be safe.
Avalanche Problem
ウインドスラブ Wind slab
New snow and winds strong enough to transport the new snow and create windslab on lee slopes in the alpine and tree-line.
ストームスラブ Storm slab
New snow has fallen across the forecasted region and the potential for storm slab. The storm slab depth, sensitivity and risk will dpend on the zone and will need caution and assessment.
概要
Avalanche
There has been enough new snow in the last 24hrs for concern of windslab avalanches in alpine and treeline zones and stormslab avalanches below tree-line. The depth and structure of these concerns will depend on how much snow fell and with what strength of wind in the area.
Snowpack
From new years day, the snow pack had time to settle and heal, however the recent snow, starting Jan 5 will take time to bond to the settled snow. Surface hoar was found on Jan 4th and will need assessment for it could be buried under yesterdays snowfall.
Weather
It has been a mix of weather this week with cold clear nights and warmer sunny days and snow storm conditions with moderate to strong winds at tree-line and above. Overall the weather has been favorable for a solid snowpack, but more snow is in the forecast and will be interesting to see with what temperature the snow falls and how dense the new snow becomes.
