Category: なだれ情報

モイワ山麓-12度降雪40cm　モイワ800m-15.2度機械故障データなし雪庇ふきだまり発達大　アンヌプリ1100m-17.6度西北西9.9m突風20m/s　ヒラフ花園-17.0度北北東3.2m　花園800m-8.2度北北東2.0m　日本海弁慶岬北西19m　神威岬西南西15m気圧1003hPa波高3.0m、

昨日正午までの低気圧降雪30cmの後、山系西側は西寄りの猛烈な吹雪。風成雪のふきだまりが風下に急激に成長し100-150cm、雪庇は200cm以上。山系西側では標高を問わず破断面50cm以上の大規模な面発生雪崩が起こりやすい。事故の多くは強い風雪時に風下の谷で起こる。注意。昨日の低気圧降雪の雪崩にも注意。低気圧降雪の雪崩は破断面が不明瞭だが森の中でも起こり危険。各ゲート開閉は未定、パトロールに従うこと。

アンベツで行方不明者が出ており朝から消防と道警による再捜索の予定。モイワ方面で日本人の事故が多いのが気になる。この情報は過去40年前の雪崩事故多発を受けて必要から始められたが、再考する時期に来ているように思う。情報もニセコルールも、少なくとも観光振興を目的に続けられて来たわけではない。

Moiwa base: -12℃, 40cm snowfall. Moiwa 800: -15.2℃, no wind data, large cornice and snowdrift development. Annupuri 1100m: -17.6℃, WNW9.9m/s with 20m/s gusts. Hirafu Hanazono 1000m: -17.0℃, NNE3.2m/s. Hanazono 800m: -8.2℃, NNE2.0m/s. Sea of Japan Benkei cape NW19m/s, Kamui cape WSW15m/s, 1003hPa, 3.0m waves. 

Following the 30cm of snowfall until yesterday noon, the west side of the mountain range has experienced a severe blizzard from the west. Wind-drifted snow has rapidly accumulated on leeward slopes, reaching 100–150cm, with cornices exceeding 200cm. Large-scale slab avalanches with crown fractures of 50cm or more are highly likely on the western side of the mountain range, regardless of elevation. Most accidents occur in leeward gullies during heavy wind and snow. Use extreme caution. Be aware that avalanches caused from yesterday’s low-pressure snowfall are also a threat. These avalanches often have indistinct fracture lines but can occur even within forest areas and are extremely dangerous. Gate openings remain undecided; follow the ski patrol instructions.

A search operation by the fire department and police is scheduled to resume this morning for a person missing in the Anbetsu area. There is a concerning trend of accidents involving mainly Japanese nationals in the Moiwa area. This Avalanche Information service was established 40 years ago out of necessity following a series of fatal avalanches. It may be time to reconsider its role. It is important to remember that neither this information nor the Niseko Rules were ever intended and continued for the purpose of tourism promotion.

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

モイワ山麓-7度風よわく結晶雪降雪25cm　モイワ800m-9.4度北北西1.9m降雪30cm　アンヌプリ1100m-11.4度西北西6.0m ビレッジ1000m-10.3度西南西2.8m　ヒラフ花園1000m-10.9度東北東2.0m　花園800m-8.3度北1.2m　日本海弁慶岬西北西5m　神威岬南西10m気圧1002hPa波高2.5m、

低気圧前面で風が弱まり海上波高低下、標高800m以上のふきだまりの発達は収まり山には30-40cmの軽い結晶雪が積もっている。雪面はスラブ化しておらず雪崩リスクは低い。ヒラフ方面のゲレンデは設置物の復旧に時間がかかり、リフト運行が遅れる。パトロールの指示に従うこと。準備が出来次第、花園5番ゲートは開けられる見込み。標高の低いモイワ6番は時間限定で開けられる。ゲートの外はスキー場ではない。外に出る時はパトロールの意見を聞きビーコン、プローブ、ショベルやロープを用意すること。ロープをくぐってはならない。ニセコルールは利用者とスキー場との信頼で成り立っている。

雪が深い。装備を持たずに山に入ればスキー場に戻れなくなる。スノーシューやシールスキンの用意を。このスポーツに安全はない。用心が事故を防ぐ。過信が事故を呼び寄せる。良い一日を。

Moiwa base: -7℃, light wind, 25cm of crystal snow. Moiwa 800m: -9.4℃, NNW1.9m/s, 30cm snowfall. Annupuri 1100m: -11.4℃, WNW6.0m/s. Village 1000m: -10.3℃, WSW2.8m/s. Hirafu Hanazono 1000m: -10.9℃, ENE2.0m/s. Hanazono 800m: -8.3℃, N1.2m/s. Sea of Japan Benkei cape WNW5m/s, Kamui cape SW10m/s, 1002hPa, 2.5m waves. 

The wind has weakened ahead of the low-pressure system, and sea wave heights have decreased. The development of wind slabs above 800m has subsided, and 30–40cm of light, crystalline snow has settled on the mountain. The snow surface has not formed slabs, and the avalanche risk is currently low. In the Hirafu area, lift operations will be delayed as crews require time to recover installations. Please follow instructions from the Ski Patrol. Hanazono Gate 5 is expected to open as soon as preparations are complete. Moiwa Gate 6, at a lower elevation, will be open for a limited time. Keep in mind that outside the gates is not the ski resort. When heading out, consult with the ski patrol and ensure you have your beacon, probe, shovel, as well as a rope. Do not duck the boundary ropes. The Niseko Rules are built on a foundation of trust between users and the resort.

The snow is deep. If you enter the backcountry without proper equipment, you will not be able to return to the resort. Bring snowshoes or touring skins. There is no such thing as “perfect safety” in this sport. Cautiousness will prevent accidents; overconfidence invites them. Have a good day.

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

山麓-6度降雪40cm除雪困難　モイワ800m-10.6度北西9.2m雪庇ふきだまり発達　アンヌプリ1100m-12.8度西北西6.5m　ビレッジ1000m-11.6度西2.9m　ひらふ花園1000m-12.3度東南東5.4m　花園800m-4.8度北北東3.4m　日本海弁慶岬北西18m　神威岬北西13m気圧1001hPa波高3.9m、

風のピークは午前2時から3時、北西22mで波高上昇4m前後、観測から雪庇とふきだまりの成長は著しく更に発達中。標高800m以上の雪崩リスクはきわめて高く、雪庇斜面や谷の側壁、ノールから破断面厚さ50-80cmの面発生表層雪崩が起こる可能性がある。ふきだまり(風成雪スラブ)の成長速度に圧密が追い付かず、少しの刺激で深部から破断しやすい。雪崩の発生面は昨日の暖気層だがそこが凍るから雪崩が起こるのではない。急激に重さを増したスラブの内部崩壊(弱線破断)が雪崩の理由となる。樹林帯内の急斜面も危険、ラッセルが腰を越えれば雪崩に用心したほうが良い。リフトが回っても今日はゲレンデから出ないほうが良い。雪は狂喜乱舞の深雪。転倒衝突に注意。ビーコンは持っているか?　今日は飾りではない。良い一日を。こんな日もある。ゲート開閉は未定。

Mountain base -6℃, 40cm snowfall, hardcore snowclearing. Moiwa 800m: -10.6℃, NW9.2m/s, cornice ans snowdrifts developments. Annupuri 1100m: -12.8℃, WNW6.5m/s. Niseko Village 1000m: -11.6℃, W2.0m/s. Hirafu Hanazono 1000m: -12.3℃, ESE5.4m/s. Hanazono 800m: -4.8℃, NNE3.4m/s. Sea of Japan Benkei cape NW18m/s, Kamui cape NW13m/s, 1001hPa, 3.9m waves. 

The wind peaked between 2:00am and 3:00am at NW 22m/s with wave heights rising around 4m. Morning observations show that cornices and snowdrifts have grown significantly and are still developing. Above 800m, the avalanche risk is extremely high. There is a potential for slab avalanches with a fracture line depth of 50–80cm on cornice slopes, valley sidewalls, and knolls. The speed of wind-slab growth has outpaced any compaction, making it prone to deep-layer fracturing from even the slightest trigger. The sliding surface would be yesterday’s warm layer, but it’s not that the avalanche occurs because that layer is freezing. The rcause for the slide is the internal collapse (shear failure within the new snowpack) of the slab, which has rapidly and drastically gained weight. Steep slopes below tree-line are also dangerous. If the trail-breaking exceeds waist-deep, you should be on high alert for avalanches. Even if the lifts are running, it is better not to leave the groomed runs today. The snow is “madly deep”. Watch out for falls and collisions. Do you have your beacon? Today, it is not an ornament. Have a good day. Gate opening is TBD.

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

ニセコ雪崩情報 第37号

Niseko Avalanche Information No.37

Sunday 11/01/2026 日曜日

本日のニセコ雪崩情報はありません

The Niseko Avalanche Report is not available today

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

この情報はコース外滑走の安全を保障する物ではありません This information is not to guarantee the safety of out of bounds riding. ニセコルールを守りましょう Please respect the Niseko Rules. レスキューはコース内が優先されます Inbounds rescue will be prioritised. コース外へは自己責任で Step out of bounds at your own risk.

ニセコ雪崩調査所 Niseko Avalanche Institute

ニセコ雪崩情報 第36号

Niseko Avalanche Information No.36

Saturday 10/01/2026 土曜日

モイワ山麓-5度12時間降雪20cm　 モイワ800m-8.2度西北西2.4m降雪20cmふきだまりなく静穏　アンヌプリ1100m-7.3度南西1.9m　ビレッジ1000m-6.6度南南西2.1m　ヒラフ花園1000m-7.0度北3.8m　花園800m-4.8度北北東3.4m、日本海弁慶岬南3m,神威岬東3m気圧1013hPa波高0.5m

日本海の低気圧前面で海上、山ともに穏やか、昼以降気温があがり南の湿った風雪が始まる。低気圧通過後は北寄りの風雪が強まりふきだまりが発達する。午後遅くから明日にかけて、標高や斜面の向きを問わず雪崩リスクの高い状態が続く。吹雪の中で風下側の谷や急な側壁を滑ってはならない。谷底にいてはならない。多くの事故は吹雪の中で起こっている。風が10m以下に落ちればふきだまりは圧密安定し始める。15m以上の雪と強い降雪で急激に成長する風成雪スラブは弱線破断しやすい。事故後に弱層を見つけても後の祭りであり死者は還らない。学んだ雪崩知識を過信してはならない。各ゲート開閉の判断はパトロールが行う。指示に従うこと。安全を陰でささえるパトロールに敬意を払うことを求める。一昨日の見返りの事故ではモイワパトロールの迅速な救助とともに、道警山岳救助隊と山麓消防の前進待機が速やかに行われた。山の安全はこれらの人々によって守られている。今日は早めの行動を。明日の雪崩情報は休む。このスポーツに100パーセントの安全はない。ビーコンはオンか? 良い一日を。

Moiwa base 6am: -5℃, 20cm snow in last 12hrs. Moiwa 800m: -8.2℃, WNW2.4m/s, 20cm new snow, calm and no snowdrift development. Annupuri 1100m: -7.3℃, SW1.9m/s. Village 1000m: -6.6℃, SSW2.1m/s. Hirafu Hanazono 1000m: -7.0℃, N3.8m/s. Hanazono 800m: -4.8℃, NNE3.4m/s. Coastal data: Benkei Cape S3m/s, Kamui Cape E3m/s, 1013hPa, 0.5m waves.

Calm conditions at sea and on the mountains preceding a low pressure system over the Sea of ​​Japan. Temperatures are expected to rise after noon with snow and southerly winds. After the low pressure system passes, northerly winds and snow will intensify with snowdrift development. The avalanche risk will be HIGH at all elevations and aspects from late this afternoon through tomorrow, . Avoid skiing in leeward valleys or steep side walls in blizzards. Stay out of the valley bottoms. Many accidents occur during blizzards. After the winds fall below 10m/s, snowdrifts can begin to consolidate and stabilize. Wind-driven slabs, which grow rapidly with >15m/s winds and snowfall,are prone to fracture on weak layers. Finding the weak layer after an accident is too late and will not bring back the dead. Don’t rely too much on learned avalanche knowledge. Patrol will make open/close decisions at each gate. Please follow their decisions. We ask that you respect the patrol who ensure your safety behind the scenes. In the Mikaeri accident the day before yesterday, the Moiwa Patrol quickly rescued the victim, while the Hokkaido Police Mountain Rescue Team and mountainside fire department were quickly on scene awaiting to assist. These people ensure the safety of the mountains. Get out early today. There will be no avalanche information tomorrow. There is no 100% safety in this sport. Is your beacon on? Have a nice day.

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

この情報はコース外滑走の安全を保障する物ではありません This information is not to guarantee the safety of out of bounds riding. ニセコルールを守りましょう Please respect the Niseko Rules. レスキューはコース内が優先されます Inbounds rescue will be prioritised. コース外へは自己責任で Step out of bounds at your own risk.

ニセコ雪崩調査所 Niseko Avalanche Institute

ニセコ雪崩情報 第35号

Niseko Avalanche Information No.35

Friday 09/01/2026 金曜日

モイワ山麓-9度風よわく降雪40cm　モイワ800m-12.3度北西9.1m降雪40cmふきだまり発達　アンヌプリ1100m-14.7度西北西5.6m　ビレッジ1000m-13.3度北北西3.9m　ヒラフ花園1000m-13.9度北2.7m　花園800m-11.0度北北西4.2m　日本海弁慶岬北西12m,神威岬北西14m気圧1013hPa波高2.2m、

等圧線幅ひろがり海上波高低下、標高1000m付近の風は弱まり、ふきだまりが安定しながら発達、降雪の量は多いが観測と試験から全体の雪崩リスクは低い。各ゲートは時間を限って開けられる、パトロールの判断に従うこと。ゲートの外はスキー場ではない。昨日モイワ見返り沢で暴走による谷への転落事故が起きている。現場を熟知したモイワパトロールが生存救出、救助に協力した人たちに感謝する。低温下の救助は一刻を争う。装備も持たず滑走の喜びを求めて安易にゲートの外に出てはならない。ニセコはコース外滑走を容認する。しかしそれは滑走者の自覚と常識的行動を前提に成り立っている。知識や技術を過信してはならない。雪崩走路の谷底にいないこと。ノールや雪庇下の斜面を刺激しないこと。雪崩は自然現象だが人がいなければ事故は起きない。ビーコンはあるか?　プローブやショベル、非常食やロープは持っているか?　このスポーツに安全はない。良い一日を。一昨日のヒラフ山頂下の雪崩は強い南風で稜線下に堆積した重いふきだまりの破断と推定、前例がなく調査中。

Moiwa base 6am: -9℃, light wind, 40cm snowfall. Moiwa 800m: -12.3℃, NW9.1m/s, 40cm new snow, snowdrift development. Annupuri 1100m: -14.7℃, WNW5.6m/s. Village 1000m: -13.3℃, NNW3.9m/s. Hirafu Hanazono 1000m: -13.9℃, N2.7m/s. Hanazono 800m: -11.0℃, NNW4.2m/s. Coastal data: Benkei Cape NW12m/s, Kamui Cape NW14m/s, 1013hPa, 2.2m waves.

Isobar are moving apart and ocean waves are dropping. Winds have dropped at 1000m with snowdrifts developing and stabilizing. Although it’s been heavy snowfall, observations and testing indicate a general low avalanche risk. Gates will be open at limited times. Please follow the patrol’s decisions. Outside of the gates is NOT part of the ski resort. Yesterday, someone lost control and fell into Moiwa Mikaeri creek. The Moiwa Patrol, familiar with the area, rescued the victim alive. We are grateful to all those who cooperated in the rescue. Rescue efforts in low temperatures require immediate action. Skiing off-course in Niseko is not officially permitted. However, under the Niseko Rules, it is possible only with the understanding and common sense of everyone.Don’t overestimate your knowledge or skills. Stay out of the valley bottoms, these are avalanche paths. Avoid stimulating knolls or cornice slopes. Avalanches are natural phenomena. Accidents don’t happen without people. Do you have a beacon? Do you have a probe, shovel, emergency food, and rope? There is no safety in this sport. Have a nice day. The avalanche that occurred the day before yesterday below Hirafu summit is believed to have been caused by heavy accumulations below the ridge due to strong southerly winds. It is unprecedented, and investigations are ongoing.

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

この情報はコース外滑走の安全を保障する物ではありません This information is not to guarantee the safety of out of bounds riding. ニセコルールを守りましょう Please respect the Niseko Rules. レスキューはコース内が優先されます Inbounds rescue will be prioritised. コース外へは自己責任で Step out of bounds at your own risk.

ニセコ雪崩調査所 Niseko Avalanche Institute

モイワ山麓-5度風よわく未明から降雪強20cm　モイワ800m-8.3度北北西2.1m昨夕まで南風つよくふきだまり発達大未明降雪強　アンヌプリ1100m-10.6度西0.8m　ビレッジ1000m-9.4度北北東2.0m　ヒラフ花園1000m-9.7度北3.6m　花園800m-7.8度北北東2.2m　日本海弁慶岬北10m　神威岬北9m気圧1005hPa波高2.3m

低気圧通過による南からのふきだまりは時間経過とともに安定、その後未明から降雪強、風は弱くふきだまりの発達わずか、未明までの雪の量は最大40cm、風の影響は小さい。観測と試験、データ評価から全体の雪崩リスクは低い。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。朝までの雪による破断面の不明瞭な雪崩が起こりやすい。森の中でも速度が速いので注意。ゲレンデの暴走による事故が起きている。技量に合った滑走を。山には人が大勢いる。雪庇下の不用意なトラバースで雪崩を起こしてはならない。谷底にいてはならない。雪崩は上から来る。雪が増えて笹が埋まりはじめた。今日のパウダーは良い。立ち木衝突に注意。このスポーツに安全はない。ビーコンは持ったか?　天候急変に注意。天気図をみること。等圧線はうそをつかない。良い一日を。

Moiwa base -5℃, light wind, heavy snowfall from midnight, 20cm new snow. Moiwa 800m: -8.3℃, NNW2.1m/s, strong southerly wind during the day yesterday created large snowdrifts development, heavy snowfall from midnight. Annupuri 1100m: -10.6℃, W0.8m/s. Village 1000m: -9.4℃, NNE2.0m/s. Hirafu Hanazono 1000m: -9.7℃, N3.6m/s. Hanazono 800m: -7.8℃, NNE2.2m/s. Sea of Japan Benkei cape: N10m/s, Kamui cape: N9m/s, 1005hPa, 2.3m waves.

Snowdrifts created by the southerly wind as the low-pressure system passes through have stabilised over time. Snowfall intensified from midnight with light wind, and snowdrift development is small. New snowfall reached a maximum of 40cm, with minimal wind impact, during the early morning. Based on our observations and data, the overall avalanche risk is low. Gates are expected to open; please follow the ski patrol’s instructions. Heavy snowfall since midnight can trigger loose-snow avalanches. Be cautious as their speeds remain high even in the trees.

There’ve been quite a few accidents caused by losing control on groomers. Ski within your ability. The mountains are crowded. Do not trigger avalanches by traversing cornice slopes. Do not stay in valley bottoms. Avalanches come from above. Snow has finally begun to bury the bamboo grass. Today’s powder is good. Watch out for riding into trees. There is no safety in this sport. Did you bring your beacon? Be alert for sudden weather changes. Check the weather map. Isobars don’t lie. Have a good day.

モイワ山麓-10度風よわく降雪15cm視界良　モイワ800m-10.6度南南西1.6m降雪20cmふきだまりなし　アンヌプリ1100m-12.8度西南西4.0m　ビレッジ1000m-11.5度南西4.4m　ヒラフ花園1000m-12.1度北8.0m降雪10cm　花園800m-9.2度南南西5.5m　日本海弁慶岬南南西5m　神威岬南南西9m気圧1014hPa波高1.0m、

低気圧前面で気圧の傾きゆるく海上、山ともに穏やか、ふきだまりの発達はなく観測とデータから全体の雪崩リスクは低い。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。

ニセコルールはスキー場コース外滑走のルールであり、利用者の事故防止のために設けられている。しかし林野庁は根本法規でこれを認めておらず、黙認しているに過ぎない。現実問題として冬山のリスクはスキー場コース外、他の自然山岳ともに等しくある。ニセコ雪崩情報はそれを客観的に示してスキー場や周辺山岳地帯の事故防止に役立てるために出されている。判断は本来それぞれが行わなければならない。この情報はスキー場利用者のみならず多くの山岳愛好者の現場でのリスク判断のために出されている。多くの雪崩事故は多量の降雪と吹雪のふきだまりが造る重いスラブが弱層に関係なく自重で弱線破断することで起こっている。

今日の雪は深くはないが素晴らしく良い。立ち木衝突に注意。木には勝てない。ビーコンやショベルは持っているか? プローブはあるか? 天候急変に注意。良い一日を。

Moiwa base -10℃, light wind, 15cm snowfall, good visibility. Moiwa 800m: -10.6℃, SSW1.6m/s, 20cm snowfall, no snowdrifts. Annupuri 1100m: -12.8℃, WSW4.0m/s. Village: -11.5℃, W4.4m/s. Hirafu Hanazono 1000m: -12.1℃, N8.0m/s, 10cm snowfall. Hanazono 800m: -9.2℃, SSW5.5m/s. Sea of Japan Benkei cape: SSW5m/s, Kamui cape: SSW9m/s, 1014hPa, 1.0m waves.

A weak pressure gradient ahead of the low-pressure system has brought calm conditions to both the sea and the mountains. No new wind slabs have developed, and based on our observations and data, the overall avalanche risk is low. Gates are expected to open; please follow the instructions of the ski patrol.

The Niseko Rules were established to govern out-of-bounds skiing and prevent accidents. However, the National Forestry Agency does not formally approve this Rule under fundamental laws; they just tacitly tolerate it. In reality, the inherent risks of the winter mountains are the same whether you are just outside the ski resort boundary or deep in the backcountry. The Niseko Avalanche Information is issued to provide objective data to help prevent accidents both in the resort surroundings and the wider mountain range. Ultimately, the final judgment rests with the individual. This information is intended to assist not only resort users but all mountain enthusiasts in making their own risk assessments in the field. Most avalanche accidents occur when heavy slabs, created by heavy snowfall and wind-driven snow, collapse under their own weight along intertwined lines of weakness within the slabs—regardless of the presence of a prominent weak layer.

The snow today isn’t deep, but it is excellent. Watch out for tree collisions. They’re stronger than you. Do you have your beacon and shovel? Do you have your probe? Stay alert for sudden weather changes. Have a great day.

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

モイワ山麓-10度降雪10cm　モイワ800m-13.2度北西3.7m降雪15cmふきだまり発達わずか視界良　アンヌプリ1100m-15.4度西北西5.4m降雪15cm雪庇ふきだまり発達　ビレッジ1000m-14.2度西北西2.4m　ヒラフ花園1000m-14.6度北1.5m降雪5cmおだやか　花園800m-12.1度北1.2m降雪わずか静穏　日本海弁慶岬北西9m　神威岬北7m気圧1010hPa波高1.1m、

海上、山ともに穏やか、強い寒気流入。降雪は軽い結晶雪が10-15cm、昨日までの重いふきだまりは圧密安定、観測とデータ評価から全体の雪崩リスクは低い。南に面した立ち入り禁止区域春の滝は太陽輻射で薄くクラストしており刺激でスラブ全体が割れる可能性があり危険、パトロールの目を盗み入ってはならない。昨日は山頂コース外で立ち木衝突事故発生しヒラフパトロールが救出。雪不足で搬送困難、感謝。今日も衝突に注意。モイワ6番からゲートを出てすぐに登り返してはならない。初心者を誘導しアンベツでの事故を誘引する。ここはスキー場であり一人の身勝手な行動が事故につながる。鉱山の沢や大沢雪庇面、東尾根では常に雪崩の危険がある。谷には人が大勢いる。雪崩を起こしてはならない。他者への配慮を。ビーコンはオンか? このスポーツに安全はない。良い一日を。雪は良い。

Moiwa base: -10℃, 10cm snowfall. Moiwa 800m: -13.2℃, NW3.7m/s, 15cm snowfall, small snowdrift development, good visibility. Annupuri 1100m: -15.4℃, WNW5.4m/s, 15cm snowfall, cornice and snowdrifts developments. Village 1000m: -14.2℃, WNW2.4m/s. Hirafu Hanazono 1000m: -14.6℃, N1.5m/s, 5cm snowfall, calm. Hanazono 800m: -12.1℃, N1.2m/s, light snowfall. Sea of Japan Benkei cape: NW9m/s, Kamui cape: N7m/s, 1010hPa, 1.1m. 

Both sea and mountains are calm, with a strong cold air inflow. 10-15cm Light crystal snowfall. Heavy snowdrifts accumulated until yesterday have consolidated and stabilized. Based on observations and data evaluation, the overall avalanche risk is low. The south-facing, strictly off-limits area of Haru-no-taki has developed a thin crust due to solar radiation. There is a risk that triggering could cause the entire slab to fracture. Dangerous. Do not duck ropes and sneak into strictly off-limits areas behind the back of the ski patrols. Yesterday, a rider crashed into a tree while riding from the summit. Hirafu Patrol rescued them, but the transport was difficult due to insufficient snow. We are grateful for the ski patrol’s effort.

Beware of collisions. Do not climb back up immediately after exiting the Moiwa gate 6. Guiding beginners here invites accidents in Anbetsu. This is a ski area; one person’s selfish action can lead to an accident. Avalanche danger is ever-present in Kozan-no-sawa, Oosawa cornice slopes, and Higashi-One. Many people are in the valley. Do not trigger an avalanche. Be considerate of others. Is your beacon on? There is no safety in this sport. Have a good day. The snow is good.

モイワ山麓-10度風よわく降雪20cm視界良　モイワ800m-13.1度北西10.7mふきだまり発達　アンヌプリ1100m-15.9度西北西12.8mふきだまり発達　ビレッジ1000m-14.5度西北西5.8m　ヒラフ花園1000m-15.2度北6.1m降雪わずか　花園800m-11.1度北北西5.7m　日本海弁慶岬北北西16m　神威岬西12m気圧1008hPa波高2.2m、

場所により雪の量が異なるが標高800m以上西側で40cmの降雪、ふきだまりは風下ノールで150cm、試験では容易に破断。データの評価から鉱山の沢、大沢雪庇面、東尾根、湯の沢及び春の滝立ち入り禁止区域、水野の沢の雪崩リスクは高い。これらの場所では厚さ50cm以内の中規模な面発生表層雪崩が起こる危険がある。この雪崩は時速80km以上と速度がやや速く逃げられない。標高1000m付近のノールや雪庇斜面上部を刺激してはならない。

雪崩は急斜面のトラバースなどの不用意な行動で起こる。谷には人がいる。慎重な滑走を。各ゲートの開閉は未定、パトロールの判断に従うこと。ここはスキー場であり利用者は規則に従う義務がある。

本日アンヌプリ7番ええ沢ゲートが開けられる。ロープをくぐり、途中から沢に入ってはならない。ひとりがくぐれば大勢がその後に続き、事故の可能性を高める。コース外へは必ずゲートから出ること。

森の中の雪は素晴らしく良い。立ち木衝突に注意。今日は悪くない。良い一日を。ビーコンはオンにしてあるか？

Moiwa base: -10℃, light wind, 20cm snowfall, good visibility. Moiwa 800m: -13.1℃, NW10.7m/s, snowdrifts development. Annupuri 1100m: -15.9℃, WNW12.8m/s, snowdrifts developments. Village 1000m: -14.5℃, WNW5.8m/s. Hirafu Hanazono 1000m: -15.2℃, N6.1m/s, light snowfall. Hanazono 800m: -11.1℃, NNW5.7m/s. Sea of Japan Benkei cape: NNw16m/s, Kamui cape: W12m/s, 1008hPa, 2.2m. 

Snowfall amounts vary by location, but up to 40cm of new snow has fallen on the western areas above 800m. Snowdrift slabs have reached 150cm on leeward knolls, and stability tests show they fracture easily. Based on data evaluation, the avalanche risk is HIGH in the following areas: Kozan-no-sawa, Osawa cornice face, Higashi-one (East Ridge), Yunosawa, the Haru-no-taki strictly prohibited area, and Mizuno-no-sawa. In these areas, there is a danger of medium-sized soft-slab surface avalanches (up to 50cm thick). These slides can exceed speeds of 80km/h, making escape nearly impossible. Do not stimulate knolls or the upper sections of cornice slopes around the 1000m elevation.

Avalanches are often triggered by careless actions, such as traversing steep slopes. There are people in the valleys below; ski and ride with extreme caution. The opening of each gate is yet to be determined—follow the judgment of the ski patrol. This is a ski resort, and all users are obligated to follow its regulations. 

Annupuri Gate 7 (Ee-sawa) will open today. Do not duck the ropes to enter the gully mid-way down. If one person ducks a rope, many others follow, significantly increasing the risk of an accident. You must only exit to the backcountry through the designated gates.

The snow in the trees is excellent. Watch out for tree wells and collisions. It’s a good day out there. Is your beacon turned on?

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