Avalanche Bulletin
更新日時: 2025/03/28 06:30
Myoko
Alpine Fair Depends on the degree of rainfall
Treeline Fair Depends on the degree of rainfall
Below Treeline Fair
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
We are in the spring snowmelt season. Yesterday, which was a foehn event, reports of large glide avalanches were received in other areas of the country. Although none have been reported in the Mt. Myoko area, we should expect essentially the same snowpack conditions. Even if the rainfall stops, the danger of glide avalanche will not decrease immediately. Stay away from slopes with glide cracks. Although it has been raining, it is not enough to wash away the large amount of yellow sand. A good option today may be to enjoy the nicely groomed courses in the ski resorts.
Avalanche Problem
全層雪崩 Glide slab
Avoid slopes with glide cracks. Also, be on the lookout for collapsing snow blocks in cliff-like terrain.
点発生湿雪雪崩 Wet Loose snow
Beware of steep terrain. Loose snow avalanches can occur even in forested areas.
概要
Avalanche
Yesterday (27th), there were few people entering the mountains and no reports of avalanches in the mountain areas.
Snowpack
Yesterday (27th), due to a foehn phenomenon, a temperature of 25.1°C was recorded at 14:00 at AMEDAS Sekiyama (350 m). The snow melted. In addition, rain (9 mm) has been falling on the sea side of the Myoko Mountains since early this morning. High temperatures and rainfall have resulted in continued melt water. After the front's passage, a winter pressure pattern is forecasted to bring cooler temperatures, but the danger of glide avalanche will not decrease anytime soon.
Weather
The Japan Meteorological Agency is forecasting westerly winds, rain, late afternoon to early afternoon, cloudy, and daytime high temperatures of 12 °C (13 m elevation) for the Joetsu region of Niigata Prefecture. At Sasagamine, Myoko (elevation 1,310 m), the temperature is 7 °C (as of 4:45 a.m.).
