Avalanche Bulletin
更新日時: 2023/01/19 06:00
Myoko
Alpine Low
Treeline Low
Below Treeline Fair Note the effects of solar radiation and elevated temperatures
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At higher elevations and in areas exposed to strong winds, hard ice sheets and Melt-Freeze layers caused by rainfall are exposed. This situation requires extreme caution to avoid slipping and falling. Wind slabs form just below ridges and in pockets of terrain. Many forested gullys have holes in them due to thawing snow, and hard debris is hidden under thin fresh snow in the gullys. Below treeline, numerous glide cracks are open. The gully is also deep due to the low snowfall. Do not rely on past high-season ski trip records.
Avalanche Problem
ウインドスラブ Wind slab
Old wind slab remaining in terrain pocket
概要
Avalanche
No new avalanche reports came in yesterday (January 18).
Snowpack
Recent snowfall of 10-20 cm is on top of a hard snow surface that has been affected by rainfall. This significant instability at the interface between new and old snow has not been reported below the treeline at this time. At higher elevations, strong winds have exposed hard Melt-Freeze crusts.
Weather
The Japan Meteorological Agency is forecasting clear skies and, in places, fog until early afternoon, with a high of 9°C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -10° (as of 4:45 a.m.).
