Avalanche Bulletin

更新日時: 2023/03/23 05:30

Hakuba


Alpine Fair


Treeline Fair


Below Treeline Fair


信頼度:○ good □ Fair △ Low

Travel and Terrain Advice

Please keep in mind that large-scale wet loose snow avalanches can occur on large steep slopes. Due to the high temperatures and strong solar radiation, the snowpack strength has reduced to a deep level. Wet snow is so heavy that even small avalanches can easily push people off. Check for "terrain traps" below the slope. Cliffs, glide cracks, and deep gullies can be high hazards. The snow is melting and the danger of glide avalanche continues. Please be vigilant on slopes with glide cracks, even at Treeline. The weather is slowly worsening. Have a good day.

Avalanche Problem

全層雪崩 Glide slab


ベース画像

At lower elevations, high temperatures continue throughout the night.

点発生湿雪雪崩 Wet Loose snow


ベース画像

Ratings are as of the morning.

概要

Avalanche


Yesterday (March 22), size 1 wet loose snow avalanches were observed in all aspects at lower elevations.

Snowpack


Due to the high temperatures and solar radiation over consecutive days, the snow has become sufficiently wet and reduced in strength deep in the snowpack surface layer. Since only the surface of the snowpack freezes when the temperature drops at night, conditions are such that loose snow avalanches can occur as soon as the temperature rises during the day and the snow is exposed to strong solar radiation. Therefore, the size of loose snow avalanches can be large on large slopes.

Weather


The Japan Meteorological Agency is forecasting southerly winds, cloudy skies, rain in the evening, and a high of 19°C (418 m elevation) for northern Nagano Prefecture. At Amedas Hakuba (elevation 703 m), the temperature is 8.7°C (as of 5:00). Yesterday, at Amedas Hakuba, a maximum temperature of 21.3°C (at 3 pm) was recorded.

Back to List Page

Donation -寄付-

日本雪崩ネットワークは様々な情報を提供するために、日々活動しております。今後も持続し続けて行くためにも皆様のご協力が必要です。