Avalanche Bulletin
更新日時: 2025/03/03 07:00
Niseko Yotei Yoichi Shiribeshi
Alpine Fair Uncertainty regarding the amount of new snow in the alpine.
Treeline Good
Below Treeline Good
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
With limited amounts of new snow and hard surfaces on most aspects, expect variable conditions in the backcountry. The northern part of the region received more overnight snow which will help however the hard crusts remain just below the surface. The new snow will run easily as loose dry avalanches over these crusts. Use extra caution if skiing steep slopes with exposure or if you are in an area where overnight recent snowfall totals exceed 20cms causing the loose dry problem to be a greater concern. The new snow will also hide the old windslabs formed during the west winds of previous days. Lots of tree bombs came down over the warm weekend and are now re-frozen, very hard and may be hard to spot under the snow surface.
Avalanche Problem
ウインドスラブ Wind slab
NW winds will re-distribute the overnight snow forming new soft slabs on leeward slopes. Isolated pockets of stubborn windslab also remain on East aspects from previous strong West winds.
点発生乾雪雪崩 Dry Loose snow
The overnight snow has fallen on hard surfaces and will run easily on steep slopes.
概要
Avalanche
No new avalanches have been reported in the past 24 hours
Snowpack
Recent warm temperatures and solar input have created a melt freeze crust up to at least 1000m on solar aspects and 800m on polar slopes. Strong west winds have stripped and scoured windward slopes depositing, isolated pockets of windslab on East aspects at treeline and above. Up to 10cms of overnight snow in the northern part of the region overlies these surfaces.
Weather
A light NW flow has taken hold bringing cooler temperatures and the occasional snow shower to some parts of the region. Temperatures in the valley will rise to a high of -3C in the valley today. Skies will be overcast throughout the day with accumulations of up to 5cms of new snow possible in some parts of the region.
