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ニセコなだれ情報 第102号 Niseko Avalanche Info No.102

 

山麓6+1度降雪なし モイワ800m北北西32713.1m/s-2.9度 アンヌプリ1100m西北西2865.2m/s-6.1度 湯の沢1000m北東412.1m/s-5.6度 ビレッジ1000m北西3171.8m/s-4.7度 ヒラフ1000m-5.8度 花園720m14.5m/s-3.1度 日本海弁慶岬北西12m/s 神威岬北西8m/s気圧1012hPa波高2.6m アンヌプリ1000m積雪190cm

 

ニセコ山系西側と稜線は風が強いが飛ばされる雪もなく雪庇ふきだまりの顕著な発達なし。風裏の標高800m以下ヒラフ側の風はやや弱い。等圧線が開くまで標高1000m以上の強風は午後まで続く。2番3番山頂ゲートは閉じられる。パトロールの指示に従うこと。山麓は春だが上には寒気が入り再び冬。山に入る人は充分な装備を。

 

3月30日以降花園リゾートのリフト運行が終了するため4番5番9番ゲートは閉じられる。2番3番山頂ゲートは引き続き開けられるが東尾根、花園側に降りると帰る足がなくなるので注意。この情報は月末に終了の予定。4月に入ると大沢、鉱山の沢で全層雪崩が起こりやすくなる。事故を避けるため谷底を滑ってはならない。良い一日を

 

Mountain Base 6am: +°, no new snow. Moiwa 800m:NNW 327deg 13.1m/s, -2.9°. Annupuri 1100m: WNW 286deg 5.2m/s, -6.1°. Yu no Sawa 1000m: NE 41deg, 2.1m/s, -5.6°. Niseko Village 900m: NW 317deg 1.8m/s, -4.7°. Hirafu 1000m : -5.8°. Hanazono 720m:N 1deg 4.5m/s, -3.1°. Coastal data: Benkei Cape: NW 12m/s. Kamui Cape: NW 8m/s, 1012hPa, wave 2.6m. Annupuri 1000m: snow depth 190cm.

 

There is a strong wind blowing on the ridges and the west side of the Niseko Range, however not much snow is getting moved around and there is little snow drift or cornice development. Wind on the east (Hirafu) side below 800m is more moderate. Until the pressure gradient mellows later today expect strong winds above 1000m. Peak gates 2 and 3 will be closed. Please listen to the patrols advice. The lower mountain is into spring conditions, however higher up cold air is flowing in making winter conditions again. Please be prepared if you are going into the mountains.

 

From 30th March gates 4,5 and 9 will be close due to Hanazono resort lift operation finishing. Gates 2 and 3 will continue to be open, but if you go down Higashi One/ Hanazono side there will be no lifts to get back. Be careful. The Avalanche Report is expecting to finish this winter at the end of March. As we get into April the risk of full depth avalanches in Osawa and Kozan no Sawa greatly increases. Try to avoid them by staying out of the valley bottoms. Have a good day.

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