Avalanche Bulletin

How to Use

更新日時: 2025/01/15 07:00

Niseko Yotei Yoichi Shiribeshi

Alpine Low The Hazard trend has risen since yesterday with the new snow and wind in the alpine. Few observations are available and uncertainty exists.

Treeline Fair Hazard trend in the tree line continues to rise today with new snow and increasing winds. Uncertainty exists. The amounts of new wind effected snow in unknown.

Below Treeline Good The hazard trend is rising below tree line with the return of new snow.

信頼度：○ good　□ Fair　△ Low

Travel and Terrain Advice

A stepping back mind set is appropriate today. Poor visibility makes it more difficult to asses where in the terrain you are. Even experienced backcountry riders get killed venturing too close to a new formed cornice. Great powder skiing can be found in the trees on slopes less than 34 degrees steepness. Extra caution when exposed to terrain traps such as gullies, creeks and trees. Avoid being exposed to steep slopes above you as others parties may also be a risk to you. With the cold temperatures and more snow expected throughout the day, it could be a good day to go resort riding.

Avalanche Problem

ウインドスラブ Wind slab

Uncertainly exists with the sensitivity and spacial distribution the new formed wind slabs

点発生乾雪雪崩 Dry Loose snow

Over 17cm new cold snow has fallen on a variety of older snow surfaces. Tree line and below, on southerly facing, steep terrain the cold new snow fell on a melt freeze bed surface. This is a perfect condition for loose dry avalanches.

概要

Avalanche

No new avalanches were reported yesterday. 2 meter shooting cracks and isolated very small cornices and very small slabs were touchy to ski cuts near ridge lines.