Avalanche Bulletin
更新日時: 2024/02/14 06:00
Myoko
Alpine Low
Treeline Fair Be aware of rising temperatures during the day and the effects of solar radiation
Below Treeline Good Watch for rising temperatures during the day and the effects of solar radiation.
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
At lower elevations, this is a day of significant changes in avalanche danger during the day. With higher temperatures than yesterday, be on the lookout for wet loose snow avalanches and glide avalanches on slopes with glide cracks. Wet snow is so heavy that even small avalanches can easily scoot underfoot and push people off the slope. If there are trees, rocks, or other obstacles below you, the consequences can be deadly. Avalanches caused by wet snow can also occur in the forest if the slope is steep enough. Do not feel safe just because you are in the forest. Meanwhile, at very high elevations, the same wind slab hazards continue as the day before. Be alert for slabs forming in terrain pokcets.
Avalanche Problem
ウインドスラブ Wind slab
Above, strong west to southwest winds continue to blow.
点発生湿雪雪崩 Wet Loose snow
Rating is as of morning. Danger increases with rising temperatures and solar radiation during the day. Be alert for slopes above you.
全層雪崩 Glide slab
Rating is as of morning. Danger increases with rising temperatures during the day. Stay away from slopes that already have glide cracks.
概要
Avalanche
Yesterday (13th), several size 1-1.5 size loose snow avalanches and size 1 glide avalanches were observed at lower elevations. No reports of avalanches at higher elevations have been received.
Snowpack
At the foot of the mountain (Sekiyama Amedas, 350 m elevation), temperatures above 0 °C have continued since yesterday morning, with temperatures above 10 °C measured between 14:00 and 15:00 yesterday. As a result, wet loose snow avalanches and glide avalanches have been observed at lower elevations. Meanwhile, at higher elevations, the danger of wind slabs due to strong winds continues.
Weather
The Japan Meteorological Agency is forecasting a southerly wind, daytime, westerly winds, sunny, occasionally cloudy, with a daytime high of 17 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is -2 °C (as of 4:45 a.m.), with no new snowfall in the past 12 hours.
