Avalanche Bulletin
更新日時: 2023/01/09 05:30
Hakuba
Alpine Fair
Treeline Fair Pay attention to changes in snow conditions on steep south-facing slopes that are strongly affected by solar radiation and rising temperatures.
Below Treeline Fair Pay attention to changes in snow conditions due to the effects of solar radiation and rising temperatures.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Those heading to higher elevations should be aware of old wind slabs that remain in extreme terrain. They are insensitive to human stimulation, but still have the potential to be triggered by large loads on isolated terrain. At lower elevations, be alert for the significant warming and solar radiation effects forecast for today. The risk of wet loose snow avalanches on very steep slopes and glide avalanches on already cracked slopes is increased. Stay well away from slopes with glide cracks. Below treeline, many "terrain traps" are exposed. Be especially vigilant in gully terrain, as there are holes in it. The weather would slowly worsen. Have a good day.
Avalanche Problem
ウインドスラブ Wind slab
概要
Avalanche
Yesterday (January 8), several size 1 loose snow avalanches were observed due to snowfall since early morning.
Snowpack
The storm snowpack from New Year's Day through January 5 was settled well. And also, the snowfall on the north side of the Hakuba Valley is also settling. The crust formed on January 6 and the recent new snow bonding is not bad. On the other hand, at very high elevations, old wind slabs remain in isolated terrain. The reaction to human stimulation is stubborn, but caution should be exercised on terrain with extreme shape. Significant temperature increases are forecast for today, and their effects should be considered.
Weather
The Japan Meteorological Agency is forecasting winds out of the south, clear, then cloudy, night, snow in places, with a high of 10°C (418m elevation) for northern Nagano. At the foot of Mt. Hakuba (elevation 703m), the temperature is -2.0°C (as of 5 am), with no snowfall in the past 12 hours.
