モイワ山麓-7度風弱く降雪40cm モイワ800m-6.6度北北西11.9m6時20m/ｓふきだまり発達大 アンヌプリ1100m-8.4度北西4.9m6時15m/s雪庇ふきだまり発達降雪大 ビレッジ1000m-7.2度北2.9m ヒラフ花園1000m-7.9度北10.3m6時20m/s 花園800m-13.0度北北東3.9m 日本海弁慶岬北北西10m 神威岬北13m気圧1007hPa波高3.5m、
冬型の気圧配置が続き西からの風雪強、標高1000m付近、風成雪によるふきだまりの発達著しく観測から弱線破断しやすい。弱線破断とはふきだまりの構造脆弱性で起こる破断、知られている弱層からの破断ではない。この雪崩は強い降雪を伴う風雪下で起こる。本日大沢雪庇面、バックボウル全域、東尾根なと標高1000mの雪崩リスクは高い。春滝は太陽反射による表面のスラブ化が進み非常に危険。1998年の事故を思い出すこと。
山頂ゲートは3日に開ける予定。以下はヒラフ隊長金沢のコメント、「積雪は例年の半分、コース外の木、穴、岩等隠れていない。東尾根方面の道路は未圧雪で歩行困難。スノーシュー、シール必携、無ければコース外に出てはならない。帰れなくなる。ツボ足で入るのは狂気の沙汰。怪我、事故、迷子に注意。雪はとても良いが深い。パトロールは事故を心配している。」良い一日を。
Moiwa Base: -7℃, light wind, 40cm snowfall. Moiwa Mikaeri 800m: -6.6℃, NNW11.9m/s (20m/s @ 6am), major snowdrift development. Annupuri 1100mm: -8.4℃, NW4.9(15m/s @ 6am)m/s, major cornice and snowdrift development. Niseko Village 1000m: -7.2℃, N2.9m/s. Hirafu Hanazono 1000m: -7.9℃, N10.3m/s(20m/s @ 6am). Hirafu Hanazono 800m: -13℃, NNE3.9m/s Coastal data: Benkei Cape NNW10m/s, Kamui Cape N13m/s, 1007hPa, 3.5m waves.
The typical winter pressure pattern continues, with strong winds and snow from the west. Significant wind-driven snowdrift development at 1000m and observations indicate a tendency to fracture on weak layers. The fracture caused by structural weakness in the snowdrift, not a fracture from a known weak layer. This type of avalanche occurs from wind and snow accompanied by heavy snowfall. Today, the avalanche risk is HIGH above 1,000 meters, including Osawa cornice slope, the entire Back Bowl, and the East Ridge. Harutaki is extremely dangerous due to the surface slabbing from the sun. Remember the 1998 accident?
The peak gate is scheduled to open on the 3rd. Below is a comment from Hirafu Team Leader Kanazawa: “The snow depth is half of the usual amount and trees, holes and rocks are not covered in. The track toward the East Ridge is untouched and difficult to walk on. Snowshoes and skins are essential. Do not leave the resort without them. You will not be able to get back. Going without them is insane. Be careful of injuries, accidents, and getting lost. The snow is very good but deep. Patrols are concerned about accidents.” Have a nice day.
出典 Source：気象庁 JMA website (www.jma.go.jp/bosai/weather_map/)