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ニセコなだれ情報 第91号 Niseko Avalanche Info No.91

 

山麓6時-1度降雪なし、モイワ800m-1.4度南南西3.47m/s降雪なし、見返り調査道圧雪、アンヌプリ1120積雪深250cm、1100m-4.4度西南西7.60m/s、ヒラフ山頂-6度、1000m-3.6度南南東3.60m/s、水野の沢降雪なく-2.89度西南西6.4m/s山麓積雪深136cm、アメダス倶知安-0.5度東南東2.2m/s、海上弁慶岬西南西4m/s、神威岬南南西17m/s気圧1013hPa波高1.4m、

 

低気圧通過による暖気流入。上空の風は強く、午後にかけて標高800m以上で低気圧降雪によるふきだまりが発達する見込み。量が多ければ明日にかけて雪崩リスクが上がる。今後の降雪推移に注意。

山は春に移行し、融雪により沢が増水し始める。スノーブリッジの崩壊に注意。全層雪崩の被害を避けるため谷底や急斜面下にいてはならない。光線がなく斜面が見づらい。良い一日を。

 

 

Mountain base 6am: -1℃, no new snow. Moiwa800m: -1.4℃, SSW3.47m/s, no snowfall. Mikaeri Cat track groomed today. Annupuri1120m: 250cm snow depth, 1100m: -4.4℃, WSW7.6m/s. Hirafu peak: -6℃, 1000m: -3.6℃, SSE3.6m/s. Mizuno no Sawa: no new snow, -2.86℃, WSW6.4m/s, 136cm snow depth at the base. Kutchan weather station: -0.5℃, ESE2.2m/s. Benkei cape: WSW4m/s, Kamui cape: SSW17m/s, 1013hPa, 1.4m waves.

 

Warm air flow due to passing low-pressure. The wind is strong in higher elevation and some snowfall is expected above 800m in the afternoon. Snowdrifts are expected to develop as well and if the deposit amount becomes big, the avalanche risk will rise accordingly. Please pay attention to the weather transition.

The mountain is shifting to spring. Thaw is swelling the streams and snowbridges are likely to collapse. Stay away from valley bottoms and/or under steep slopes to avoid glide avalanches. The light weak and the snow surface is difficult to see.

Have a nice day.

| - | 07:40 | - | - | pookmark |