Avalanche Bulletin
更新日時: 2024/03/05 06:00
Niseko Yotei Yoichi Shiribeshi
Alpine Good Pockets of wind slab have formed at higher elevations.
Treeline Good Slab may be found in protected areas with higher totals of new snow.
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
When heading into the backcountry today an assessment mindset is required in order to take the time to evaluate conditions on all aspects and elevations. In the coming days we expect the snow pack to gain strength but at present we remain cautious as to how this latest new snow has bonded to the previous snow surface. Little observations have been made in the alpine requiring a greater level of care taken whilst route planning.
Avalanche Problem
ウインドスラブ Wind slab
With new snow available to transport from the most recent storm cycle, westerly winds have created wind slab on lee slopes. Shooting cracks have been observed around ridgeline and fresh cornice features are brittle and easy to fracture. Be wary of convex roles in the alpine and look for signs of fresh wind loading around ridgelines as human triggered avalanches are likely.
ストームスラブ Storm slab
In open terrain where higher snowfall totals have accumulated the latest new snow may overload the melt freeze crust in steep terrain. Be wary of what is below you and watch for terrain traps at lower elevations.
概要
Avalanche
Cornice failures and shooting cracks have been observed within the latest new snow lee to the west winds on the 4th of March.
Snowpack
Westerly winds have re distributed the latest new snow onto lee slopes in the alpine. Cornice features have been brittle and easy to fracture with cracking observed on cross loaded features. We continue to examine the bond between the latest new snow and the melt freeze crust which is buried 50 to 60cm down.
Weather
The most recent storm cycle came to a close Monday evening into Tuesday morning and expect to see a period of occasional light snowfalls and moderate to light north westerly winds in the coming days.
