Avalanche Bulletin

更新日時: 2023/02/24 06:00

Myoko


Alpine Fair


Treeline Fair


Below Treeline Good


信頼度:○ good □ Fair △ Low

Travel and Terrain Advice

Avalanche Hazard "1 Low" does not mean that avalanches will not occur. Beware of unstable snow remaining in limited areas such as extreme terrain features. Cloudy weather is forecast for today. At times like this, it will be difficult to see slope changes in the mountains due to flat light. It is important to ski at controlled speeds. In some areas at lower elevations, hard debris from avalanches caused by past rains may be hidden by new snow. The weather is forecast to turn wintry again heading into tomorrow, with snowfall predicted. Plan your trips with this in mind.

Avalanche Problem

ウインドスラブ Wind slab


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Note the unstable slab that remains in a limited location.

点発生湿雪雪崩 Wet Loose snow


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Watch for the onset of rainfall

全層雪崩 Glide slab


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Watch for the onset of rainfall

概要

Avalanche


Yesterday (February 23), a size 2 glide avalanche was reported in the below treeline.

Snowpack


The instability caused by the stormy snow seems to have been mostly resolved. Sunny skies and high temperatures over the past two days have kept the snow surface sufficiently wet at lower elevations.

Weather


The Japan Meteorological Agency is forecasting winds from the south, later from the west, cloudy, late evening, rain or snow, and a high of 10° (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -5° (as of 5:45 a.m.).

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