モイワ山麓-2度低気圧降雪10cm静穏 モイワ800m-4.8度降雪15cmリセット アンヌプリ1100m-6.8度西北西6.7m午前2時西15m/s ビレッジ1000m-5.5度西4.0m ヒラフ花園1000m-6.4度北3.5m 花園800m-3.2度南西4.4m 海上弁慶岬西北西12m午前4時北西18m/s 神威岬南西13m気圧1014hPa波高1.8m、
低気圧前面で暖気流入し低気圧降雪が山系西側で15cm、標高800m以上は未明の強風で柔らかくスラブ化し雪面はリセット。観測から顕著なリスクはなく各ゲートは開けられる見込み、パトロールの指示に従うこと。立ち入り禁止区域アンベツに6番ゲートを越えて入ってはならない。ルールを無視する人がいる間は10番ゲートの復活はない。現在の低気圧降雪は次の風雪による風成雪スラブの下で雪崩発生面となる。降雪推移に注意すること。雪は浅いがまだ良い。視界不良、天候急変に注意。開けた急斜面では小麦粉のような低気圧降雪特有の浅い雪崩が出やすい。谷底にいてはならない。ビーコンはオンか?体調は万全か? 二日酔いはしていないか? 良い一日を。
Moiwa Base: -2°C, 10cm new snow from the low-pressure, calm. Moiwa 800m: -4.8°C, 15cm new snow has reset the surface. Annupuri 1100m: -6.8°C, WNW 6.7m/s (W15m/s at 2:00 AM). Niseko Village 1000m: -5.5°C, W 4.0m/s. Hirafu Hanazono 1000m: -6.4°C, N 3.5m/s. Hanazono 800m: -3.2°C, SW 4.4m/s. Coastal data: Benkei Cape WNW 12m/s (NW 18m/s at 4:00 AM). Kamui Cape: SW 13m/s, 1014hPa, Wave height 1.8m.
Warm air is flowing in ahead of the low-pressure system, bringing 15cm of new snow to the western side of the mountain range. Above 800m, pre-dawn high winds have caused the snow to form soft slabs, resetting the surface. No significant risks were noticed during the morning observations and gates are expected to open. Follow the instructions of the ski patrol. Do not enter the Ambetsu strictly prohibited area by crossing past Gate 6. As long as there are people who ignore the rules, Gate 10 will not be reinstated. This current low-pressure snowfall will become a failure layer under the wind-affected snowdrift slabs brought by the next storm. Pay close attention to the snowfall transition. The snow is shallow but still good. Poor visibility, stay alert for sudden weather changes. On open steep slopes, shallow avalanches characteristic of low-pressure snowfall—powdery like flour—can easily occur. Do not stay put at the bottom of the gullies. Is your beacon on? Are you feeling 100%? No hangovers? Have a great day.

出典 Source:気象庁 JMA website (www.jma.go.jp/bosai/weather_map/)








