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ニセコなだれ情報 第104号 Niseko Avalanche Info No.104

山麓-3度降雪なし晴れ、モイワ800m-3.8度西7m/s降雪なし晴れ、アンヌプリ1150m-5度北8m/s降雪なし晴れ、ヒラフ1250m-7度西7m/s降雪なし晴れ、日本海神威岬南4m/s気圧1020hPa波高0.5m

高圧帯の中で晴れ。標高800m以下の雪はザラメ化が進んでいる。日中の気温上昇で融雪が更に進む。観察から全体の雪崩リスクは低くゲートは朝から開けられる。

一週間の晴天は今日で終わり明日は低気圧の接近で雪が降る見込み。風を伴って吹雪けば真冬と同様に風下ふきだまり斜面で雪崩が起こりやすくなる。気象変化に注意。

水野の沢を含む南側の沢では全層雪崩の危険が高まっている。滑ってはならない。朝のうち雪は硬いがすぐに緩む。良い一日を。日焼けと雪目に注意。

 

Mountain base : -3°, no new snow, sunny. Moiwa 800m: -3.8°, W7m/s, no new snow, sunny. Annupuri 1150m: -5°, N8m/s, no new snow, sunny. Hirafu 1250m: -7°, W7m/s, no new snow, sunny. Coastal data: Kamui Cape: S4m/s, 1020hPa, wave 0.5m.

The high pressure continues with sunny weather today. Below 800m the surface is changing to spring corn snow and even more snow will melt. From observation general avalanche risk is low. All gates are expected to be open.

This last week of sunny weather will end today. Tomorrow a low pressure system will move in and snow is expected. If the snow is accompanied by wind, conditions will return mid winter. Snow drifts will form on leeward slopes and could easily avalanche exactly the same way they can in winter. Be careful of a sudden change in weather.

In south facing gullies, including Mizuno no sawa, the risk of full depth avalanches is high. Do not enter these areas. The snow will be hard in the morning but soften up during the day. Be careful of sun burn and sun blindness. Have a good day.

| - | 07:20 | - | - | pookmark |