Avalanche Bulletin
更新日時: 2023/03/05 05:30
Hakuba
Alpine Fair
Treeline Good
Below Treeline Good Beware of high daytime temperatures and the effects of solar radiation
信頼度：○ good □ Fair △ Low
Travel and Terrain Advice
Snow on south-facing slopes is repeatedly melt-freezing and changing to spring conditions. High daytime temperatures and solar radiation have reduced the snowpack strength, and the wet avalanches that occur should be watched out for. On the other hand, there is well-settled dry snow on the northern slopes at higher elevations, but beware of wind slabs that remain on terrain pockets. There is more and more hard old snow exposed on the ridge tops and other areas where the wind is strong. Be on the lookout for slips and falls. Don't forget sunglasses and sunscreen. Have a good day.
Avalanche Problem
ウインドスラブ Wind slab
Note wind slab formed in terrain pocket
点発生湿雪雪崩 Wet Loose snow
Beware of high daytime temperatures and the effects of solar radiation
全層雪崩 Glide slab
Stay away from slopes with glide cracks.
概要
Avalanche
Yesterday (March 4), several wet loose snow avalanches of size 1-1.5 were observed Below Treeline. All were triggered by skiers.
Snowpack
Stormy snow has settled well enough. Wind slabs remain in terrain pockets at higher elevations, and wet snow avalanches occur at lower elevations. No significant instability has been observed below the mid-levels of snowpack.
Weather
The Japan Meteorological Agency is forecasting northerly winds, cloudy and occasionally sunny with a high of 11°C (418 m elevation) for northern Nagano Prefecture. At AMeDAS Hakuba (elevation 703 m), the temperature is -3.9°C (as of 5:00), with no new snowfall in the past 12 hours.
