Avalanche Bulletin
更新日時: 2024/02/15 06:00
Myoko
Alpine Low
Treeline Fair Keep in mind the rising temperature and solar radiation during the day
Below Treeline Fair Watch for rising temperatures during the day and the effects of solar radiation.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
The cold nighttime temperatures are weak, and the snow cover surface layer quickly loses its strength as the temperature rises. Wet snow is so heavy that even a small avalanche can easily scoop and sweep away skier. If there are trees or other obstructions below the slope, the consequences can be severe. Wet loose snow avalanches can also occur in forests if the slope is steep enough. Do not underestimate avalanches because of their small size.
Avalanche Problem
点発生湿雪雪崩 Wet Loose snow
Rating is as of morning. Note the effects of rising temperatures and solar radiation during the day.
全層雪崩 Glide slab
Rating is as of morning. Stay away from slopes with glide cracks.
ウインドスラブ Wind slab
Note slab formed in terrain pocket
概要
Avalanche
Yesterday (14th), a size 1 wet loose snow avalanche or glide avalanche of size 1 was reported below treeline.
Snowpack
Due to yesterday's rise in temperature and solar radiation, the snowpack quickly took on a spring-like appearance. On sunny slopes, wet loose snow avalanches and expanding glide cracks have been observed. Today, as on the previous day, it will be a day to pay attention to the effects of rising daytime temperatures.
Weather
Today, a low pressure system is expected to move from the Sea of Japan to off the coast of Sanriku, and a frontal system extending from the low pressure system is expected to move southward over the Hokuriku region. The Japan Meteorological Agency is forecasting southerly winds, cloudy skies, nighttime rain, and daytime high temperatures of 18 °C (13 m elevation) for the Joetsu area of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is 2 °C (as of 4:45 a.m.), and no new snow has fallen in the past 12 hours.
