Avalanche Bulletin
更新日時: 2023/03/26 06:00
Myoko
Alpine Low High Alpine appears to have had snowfall.
Treeline Fair
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Continued rainfall has wetted the entire snowpack Below Treeline and reduced its strength. Be alert for slopes with glide cracks and leftover snow blocks. Glide cracks occur where the slope changes significantly. If you are on a slope where you cannot see what is ahead, do not slide into the slope suddenly, but stop at a position where you can afford to do so and check what is ahead. Snow is also breaking up on the ridge and just off the ridge. Gully is cracking and water levels are increasing. Please plan your activities safely, assuming that the descent routes that were usable during the high season will not be available.
Avalanche Problem
全層雪崩 Glide slab
点発生湿雪雪崩 Wet Loose snow
ストームスラブ Storm slab
概要
Avalanche
Yesterday (March 25), a size 2-2.5 glide avalanche was observed. A size 1 wet loose snow avalanche was also reported in the adjacent Hakuba Mountains at an elevation of around 2100 m.
Snowpack
Rainfall has increased the risk of glide avalanches in all directions, especially below 1,500 m elevation. Although it appears to have snowed in I-Alpine, there is a lack of information and a high degree of uncertainty.
Weather
The Japan Meteorological Agency (JMA) is forecasting winds from the south, then from the northwest, rain, and a maximum temperature of 10° (at 13 m elevation) for the Joetsu region of Niigata Prefecture. At Myoko Sasagamine (elevation 1,310 m), the temperature is 2° (as of 5:45 a.m.).
