Avalanche Bulletin
更新日時: 2025/01/22 06:30
Myoko
Alpine Fair Wind effects unknown
Treeline Fair
Below Treeline Good Depends on the degree of influence of temperature rise and solar radiation
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Generally safe avalanche conditions. The effect of winds at higher elevations is unknown and there is uncertainty related to this. In adjacent Hakuba, winds strong enough to scrape hard snow surfaces have been blowing since last night. Those climbing to very high elevations today should consider the possibility of newly formed wind slabs. At lower elevations, watch for snow changes during the day. In the forested zone, glide cracks are open in various places. Watch for changes in slope.
Avalanche Problem
概要
Avalanche
Yesterday (21st), a size 1 wet loose snow avalanche was observed on a steep slope at low altitude where the influence of solar radiation is strong. A size 1.5-2 glide slab avalanche was also reported.
Snowpack
The higher elevation northern slopes have well-dried, settled snow, while the lower elevation southern slopes have thawing and freezing crusts formed by solar radiation and high temperatures. Crust thickness is increasing and glide cracks are also growing.
Weather
The Japan Meteorological Agency has forecast southerly winds during the day, northerly winds during the day, cloudy with occasional sunny spells, with rain or snow in some places from the morning, and a maximum temperature of 9°C (13 m above sea level) during the day for the Joetsu region of Niigata Prefecture. At Myoko Sasaga Mine (1,310 m above sea level), the temperature is -6°C (as of 4:45 a.m.), and there has been no new snowfall in the past 12 hours. terrain.
