Avalanche Bulletin
更新日時: 2025/03/22 06:00
Niseko Yotei Yoichi Shiribeshi
Alpine Low Limited observations have been made recently.
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Spring continues with rain overnight and warm temperatures that are due to lower during the day. This will likely lead to variable conditions and possibly some thin breakable crusts on upper elevations and northerly aspects. Westerly winds have been moderate to strong in the alpine so we expect isolated pockets of wind slab to remain. Continue to keep an avoidance mindset in terrain with glide cracks as the freezing level drops.
Avalanche Problem
全層雪崩 Glide slab
Glide slab release remains a concern with overnight rain and warm temperatures. The freezing level is expected to lower later in the day which may add tension to the pack. Continue to avoid these features and the terrain below them.
点発生湿雪雪崩 Wet Loose snow
Wet loose activity will be active in steep terrain early in the day but the hazard will trend downwards as freezing levels lower during the day.
ウインドスラブ Wind slab
Isolated pockets of wind slab remain at upper elevations on lee slopes but are settling
概要
Avalanche
We have received no new reports of activity in the region.
Snowpack
Warm temperatures and rain at lower elevations yesterday and overnight will have settled the snow pack to mid elevations. Expect the surface to be wet and heavy this morning up to 1000 meters on all aspects before temperatures lower and a refreeze begins to occur late in the day. The upper snowpack contains multiple crusts from the current spring cycle.
Weather
Overnight rain showers will begin the dissipate as morning comes alongside the lowering of the freezing level to 300 meters during the day. Winds will remain from the west and will be moderate gusting to gale in the alpine.
