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ニセコなだれ情報 第34号 Niseko Avalanche Info No.34

山麓6時-4度降雪3cmおだやか、モイワ800m-5.5度西4.0m/s降雪5cmふきだまり発達わずか、アンヌプリ1150m-7度西北西8m/s降雪10cmふきだまりわずか、ヒラフ1250m-8度風弱く降雪10cm、弁慶岬北西7m/s、神威岬西2m/s気圧1006hPa波高0.8m、

 

等圧線間隔広がり海上、山ともなおだやか、降雪量は少なく標高1000m以上の雪庇、ふきだまりの発達は小さい。観察、試験、各データから全体の雪崩リスクは低い。各ゲートは朝から開けられる。パトロールの意見を聞き準備してコース外へ出ること。昨日のトラックは残っているが滑走には悪くない。雪は断続的に続く見込み。光がなく斜面が見えずらいので転倒衝突に注意。亀裂や穴への転落に注意。穴は突然現れる。

 

降雪推移からスラブ化の程度は小さいため破断面の大きな面発生雪崩は出にくい。無理に雪崩を起こさないよう雪庇下など急斜面の同時滑走を避けること。またノールや斜面のトラバースをしないこと。エアバックは停止状態で開いても雪面に浮かない。ビーコン同様持つことで油断してはならない。用心すれば大抵の事故は防げる。良い一日を。

 

Niseko base 6am: -4℃, 3cm snowfall, clam. Moiwa800m: -5.5℃, W4m/s, 5cm snowfall with light snowdrift development. Annupuri1150: -7℃, WNW8m/s, 10cm snowfall, light snowdrifts. Hirafu1250m: -8℃, light breeze, 10cm snowfall. Coastal data: Benkei cape NW7m/s, Kamui cape W2m/s, 1006hPa, 0.8m waves.

 

The isobars are spread out and the weather is calm on the ocean and the mountains. Scarce snowfall throughout the area and development of snowdrifts and cornices above 1000m is also minimal. According to observations, test and various data, the general avalanche risk is low. All gates will open from the morning. Ask for advice from the ski patrol before stepping out of the gates. Yesterday’s tracks are remaining, but still pretty good condition for riding. Intermittent snowfall is forecasted to continue. Light is weak and the snow surface is hard to see. Beware of loosing control, hitting obstacles, falling into cracks/holes, they’re difficult to notice until last second.

 

Large crown avalanches are unlikely to occur in the current snowpack, however stimulating snowdrift slopes (under cornices), riding one slope simultaneously or traversing across the whole slope can trigger an avalanche anytime.

 

Airbags will not float if turned off. Just like beacons, simply carrying it will not save your life. Be prepared, be vigilant. Accidents can be avoided by using caution. Have a nice day.

| - | 07:30 | - | - | pookmark |