山麓-6度降雪なし凍結 モイワ800m-6.9度北北西1.9m降雪なくおだやか アンヌプリ1100m-8.8度西北西4.1m ビレッジ1000m-7.7度西北西1.6m ヒラフ花園1000m-8.8度北1.5m 花園800m-6.7度北北西0.5m 日本海弁慶岬東3m 神威岬西南西4m気圧1029hPa波高0.8m、
気圧の傾きなく海上、山ともにおだやか、降雪なし。各山頂ゲートは開けられる。パトロールの指示に従うこと。ロープをくぐってはならない。立ち入り禁止区域を滑ってはならない。南面立ち入り禁止区域では今後、深部層または地表からの大規模な雪崩が起こりやすくなる。水野の沢11番ゲートは右岸側壁からの大規模な岩盤崩壊による雪崩が起こり、谷全体の雪崩の危険が高まっているため閉鎖される。今年は寒暖差が大きく寒気流入による各層の凍結が例年より進んでいる。今後の気温上昇で融解が急速に進めば大規模な雪崩の可能性が高まる。3月10日以降は鉱山の沢、アンヌプリ大沢、見返りの沢など雪崩通路となる谷を滑ってはならない。これらの雪崩は突然起こり谷を一掃する。ニセコは降雪量が多いためか過去に破断面6mを越える全層雪崩が複数回起こり、地形を削り森林に被害を与えている。山は無数のトラックで荒れている。転倒立ち木衝突、骨折に注意。亀裂転落に注意、亀裂は上から見えない。ビーコンはオンか? あれば仲間の命を救える。義務ではないが持つことを勧める。良い1日を。
Mountain base: -6°C, no snowfall, frozen. Moiwa 800m: -6.9°C, NNW 1.9m/s, calm, no snowfall. Annupuri 1100m: -8.8°C, WNW 4.1m/s. Niseko Village 1000m: -7.7°C, WNW 1.6m/s. Hirafu Hanazono 1000m: -8.8°C, N 1.5m/s. Hanazono 800m: -6.7°C, NNW 0.5m/s. Sea of Japan Benkei Cape E 3m/s. Kamui Cape WSW 4m/s, 1029hPa, 0.8m waves.
The pressure gradient is flat; both sea and mountain are calm with no snowfall. All summit gates will open. Follow the instructions of the ski patrol. Do not duck the ropes. Do not ski in strictly prohibited areas. In the south-facing prohibited zones, large-scale avalanches from deep layers or the ground surface will become increasingly likely. Gate 11 at Mizuno-no-sawa is closed due to a large-scale rockfall-induced avalanche from the right bank sidewall, which has heightened the overall avalanche risk in the valley. This year has seen significant temperature fluctuations, and the freezing of layers due to cold air inflow is more prominent than usual. If rapid melting occurs with future temperature rises, the possibility of a large-scale avalanche will increase sharply. From March 10th onward, do not ski in valleys that serve as avalanche paths, such as Kozan-no-sawa, Annupuri Osawa, and Mikaeri-no-sawa. These avalanches occur suddenly and can sweep the entire valley floor. Due to the heavy snowfall in Niseko, multiple full-depth glide avalanches with crowns exceeding 6m have occurred in the past, scouring the terrain and damaging the forest. The mountain is heavily tracked out. Beware of falls, tree collisions, and bone fractures. Watch out for cracks; they are often invisible from above. Is your beacon on? If you have one, it can save your companions’ lives. While not mandatory, carrying one is highly recommended. Have a great day.
出典 Source：気象庁 JMA website (www.jma.go.jp/bosai/weather_map/)