Avalanche Bulletin
更新日時: 2023/02/05 06:00
Myoko
Alpine Fair
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Dangerous avalanche conditions. Be on the lookout for storm slabs formed by yesterday evening's snowfall. Avoid very steep slopes, areas where the terrain is shaped to not support the snowpack, and areas where there are "terrain traps" below the slope. Snow from previous stormy days has settled well, so conditions are good for powder runs with good underlying support, even if the slope is a low angle. The choice of terrain is paramount to safety. Due to the effects of solar radiation and rising temperatures, slabs that were slow to respond in the morning may become more responsive in the afternoon. Pay close attention to snow changes during the day.
Avalanche Problem
ストームスラブ Storm slab
昨日夕方からの降雪でストームスラブが形成。
概要
Avalanche
Yesterday (February 4), a glide avalanche was reported in the Below Treeline that is believed to have occurred in the past. No new slab avalanches were reported.
Snowpack
New snow from yesterday evening is on top of the old snow that has been settling. Below Treeline, the amount of new snow is about 30-40 cm.
Weather
The Japan Meteorological Agency is forecasting winds from the south, winds from the north during the day, snow, cloudy before noon, sunny later, and a maximum temperature of 6°C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -6° (as of 4:45 a.m.).
