災害 · B.C.州の嵐
B.C.州に次の嵐が接近、ゼバロスで22軒に避難命令
原語の動画
英語の原文から翻訳されています。
避難、準備、屋内退避はそれぞれ異なる
11月6日の緊急通知では、避難対象としてマキナ・アベニュー101~118番地とパンドラ・クレセント202~216番地が指定された。命令の対象者には避難が義務付けられた。緊急支援の登録先は、マキナ・アベニュー155番地にあるゼバロス消防署とされた。12
同じ11月6日の通知では、パンドラ、ゴールドバレー、リノ・ロード周辺のその他の住民に対し、別の指示がない限り自宅で待機するよう呼びかけていた。また、マキナ・アベニュー101~118番地の区間は通行止めとされた。これらは日付が明記された通知にある規制であり、すべての道路規制や避難区域がその後も変更されていないことを確認するものではない。村とストラスコーナ地域区は緊急対策本部を設置した。12
ここで参照できる報道からは、日付を明示した避難解除は確認できない。そのため、地域で最も重要な問題は未解決のままだ。当局が、対象となった住宅への世帯の帰還を安全と判断するのはいつなのか。
次の気象システム到来前に急がれる復旧作業
作業員は、被害の大きかったポートハーディ、コートニー、クアリカム、プリンス・ジョージなどで、損傷した電線、電柱、その他の設備の修理にあたっていた。BCハイドロは復旧作業が土曜日を通じて続くと見込み、週半ばまでにさらに2つ、場合によっては3つの気象システムが来る可能性を監視していた。長期にわたる対応に備え、請負業者やその他の資源が準備されていた。21
BCハイドロによると、長引く干ばつや暑さは樹木や根を弱らせ、風雨にさらされた際に倒れやすくする。これはリスク要因の一つを説明するものであり、すべての電線損傷が干ばつによって引き起こされたことを証明するものではない。同社は、設備付近の危険な樹木や植生の特定と撤去に、過去数年間で1億5,000万ドルを費やしたと説明した。21
同社が示す、より直接的な安全上の助言は次のとおりだ。倒れた電線、損傷した電線、または垂れ下がった電線には少なくとも10メートル近づかず、緊急サービスに通報すること。近くで停電が起きていても、落ちた電線が安全になるわけではない。BCハイドロはまた、水、保存のきく食品、懐中電灯、電池、救急用品などを含む、72時間分の非常用キットを準備するよう勧めている。21
風雨の強まりと、欠航が続くフェリー
BCフェリーズは、強風と高波の予報を受け、土曜日の太平洋時間午後7時と午後9時にツワッセンとスワーツベイを結ぶ上下両方向の便を欠航させた。小規模航路でも欠航があり、さらに多くの便が運航できなくなるおそれがあった。つまり金曜日の混乱は、単に解消すべき滞留ではなく、新たな運航中断がすでに予定されていた。19
「作業員と運用チームは状況を注意深く監視しています。人々の移動を確保することを常に目指していますが、乗客と乗務員の安全が最優先です」と、BCフェリーズの広報担当者リリアン・キム氏は述べた。19
別の見通しでは、現在の気象システムと今後到来するシステムを合わせ、翌週にかけてバンクーバー島の一部で400ミリ以上の雨が降る可能性が示された。これはより長い期間を対象とした予報であり、観測済みの合計雨量でも、さらに400ミリが必ず降るという意味でもない。6
高い河川流量への注意報は、バンクーバー島の大部分、南岸と中央沿岸、シー・トゥー・スカイ、フレーザー川下流域に出された。島の北部と西部では河川の水位が急速に上昇していた。島の西海岸の大部分では、海面の上昇、波、高い潮位により、低地の海岸線で小規模な浸水が起きる可能性も高かった。これは、ゼバロスの避難命令につながった河川や斜面の危険とは別の脅威だ。19
脅威は、沿岸部を夜間に襲う風に限られていたわけではない。内陸部の気象情報はホープから北のバーンズレイクまでを対象とし、土曜日の午後に時速60~80キロの突風が強まり、日曜日の朝にピークを迎えると予想していた。日曜日の午後には、別の寒冷前線によってさらに強い風が吹く見込みだった。最終的な復旧件数も、日付を明示した避難解除も確認されていなかった。次の重要な試金石は、住宅、修理箇所、交通網が次の荒天に耐えられるかどうかだった。19
情報源14
媒体別の全情報源
14媒体の21件の情報源· 引用の多い順
cbc.ca5
- Some ferry sailings cancelled as weather warnings issued in B.C. | Hanomansing Live
- Landslide prompts evacuation order for village of Zeballos on Vancouver Island | CBC News
- Rainfall warning issued for parts of Metro Vancouver, Vancouver Island | CBC News
- State of emergency for Vancouver Island village due to flooding, risk of landslide
- More wind warnings for B.C.'s South Coast after storm plays havoc with power, ferries | CBC News
Times Colonisttimescolonist.com2
BC Gov Newsbc.ca1
BritishColumbiaDailybritishcolumbiadaily.ca1
Canada's National Observernationalobserver.com1
CBC News動画1本1
CTVNewsctvnews.ca1
hashilthsa.com1
放送時の内容
- Zeballos officials have ordered twenty-two properties evacuated because of flooding and landslide danger. About forty thousand electricity customers across British Columbia remain disconnected as another storm approaches. When can evacuated households return, and can repair crews catch up before more lines fail?
- The Village declared a local state of emergency on Friday, November sixth. Zeballos has about 125 residents, but the evacuation order covers part of the village. Twenty-two is a property count. Officials haven't given a count of the people who left.
- Ehattesaht Nation Chief Simon John described a river that had risen sharply and was full after heavy rain. Flooding and unstable slopes threatened the community together. The Village and Strathcona Regional District activated their emergency operations centres.
- Residents under an evacuation order were required to leave. A separate alert told affected residents and visitors to prepare to leave in under thirty minutes if instructed. That alert was issued until further notice. Emergency support registration was directed to the Zeballos Fire Hall, at 155 Maquinna Avenue.
- The November sixth notice also encouraged other residents around Pandora, Gold Valley and Reno Roads to shelter at home unless directed otherwise. It closed Maquinna Avenue between numbers 101 and 118. Those were the restrictions set out in that notice.
- About eighty thousand customers lost power at Friday's provincial peak. An earlier Friday-evening check had put the number at at least thirty thousand. By eight Saturday morning, about forty thousand were still disconnected. Those numbers describe different points in the storm and repair effort.
- The fall from about eighty thousand to about forty thousand shows the scale of the restoration work. But new failures were developing while crews repaired earlier damage. BC Hydro expected repairs to continue through Saturday, with further outages possible.
- Vancouver Island alone had more than thirty thousand customers without power at Friday's peak. Across the central Interior and North, about twenty-three thousand lost electricity in 100 Mile House, Williams Lake, Quesnel and Vanderhoof. About one-third of Prince George was without power at one point. Those regional figures cover different snapshots and shouldn't be added together.
- Prince George was among the hard-hit areas targeted for repairs, along with Port Hardy, Courtenay and Qualicum. Farther south, the Tsawwassen–Swartz Bay ferry crossing faced more cancellations. Zeballos's evacuation emergency was unfolding within a much wider disruption to electricity and travel.
- Crews had to repair damaged lines, poles and other electrical equipment. BC Hydro was monitoring two, and potentially three, more weather systems through midweek. It was preparing crews, contractors and other resources for an extended response, while the next storm threatened equipment already under strain.
- BC Hydro says prolonged drought and heat can weaken trees and their roots, leaving them more vulnerable when wind and rain arrive. The utility says it has spent 150 million dollars over the past several years identifying and removing dangerous trees and vegetation near lines.
- Downed wires add another danger for households already losing light and heat. BC Hydro advises people to stay at least ten metres from downed, damaged or low-hanging power lines, and report them to emergency services. A line can remain hazardous even when nearby homes have lost power.
- BC Hydro recommends a stocked seventy-two-hour emergency kit, including water, non-perishable food, flashlights, batteries and first-aid supplies. The next weather systems could prolong the response, even as crews reconnect customers affected by the first storm.
- BC Ferries cancelled more departures before the next strong winds arrived. Saturday's seven p.m. and nine p.m. sailings were cancelled in both directions between Tsawwassen and Swartz Bay because of forecast high winds and waves. Smaller routes also lost sailings, and more departures remained at risk.
- Some service had resumed after Friday's cancellations, but delays continued as operations caught up. Saturday's further cancellations extended the disruption. BC Ferries said its crews were monitoring conditions and that passenger and crew safety had to come first.
- Parts of Vancouver Island had received up to 210 millimetres of rain since Thursday. The earlier Friday-evening figure was up to 175 millimetres in some areas over twenty-four hours. The longer accumulation window explains why those figures can't be treated as the same measurement.
- The weekend forecast allowed about 250 millimetres, or locally more, in parts of Vancouver Island, including rain already received. A separate forecast allowed 400 millimetres or more across the current and incoming systems over the following week. That was a longer forecast horizon.
- The next coastal storm was expected Saturday, November seventh. Friday evening's initial outlook allowed gusts of 110 to 120 kilometres an hour in parts of the coast. Saturday's warnings narrowed the forecast by region, with different wind strengths and different times for conditions to ease.
- Northern Vancouver Island faced forecast gusts up to 110 kilometres an hour. Much of the South Coast faced southeasterly winds of seventy, gusting to ninety. The Interior outlook called for gusts of sixty to eighty kilometres an hour.
- Wind warnings covered most of Vancouver Island, including Victoria, plus Metro Vancouver, the Southern Gulf Islands, Sunshine Coast and Fraser Canyon. Northern Island winds were expected to ease by late afternoon but stay gusty overnight. South Coast winds were forecast to die down towards midnight.
- High-streamflow advisories covered most of Vancouver Island, the South and Central coasts, Sea-to-Sky and the lower Fraser River basin. Northern and western Island waterways were rising rapidly. Along much of the Island's west coast, elevated ocean levels, waves and high tides made minor low-lying shoreline flooding likely.
- Zeballos households still need a safe-return decision, while electricity customers need repairs that can withstand the next weather system. A dated evacuation all-clear and a final restoration count haven't been confirmed. The immediate outlook extends beyond the coast's overnight winds.
- The Interior's special weather statement stretched from Hope north to Burns Lake. Winds were expected to strengthen Saturday afternoon and peak Sunday morning. Another cold front was expected to bring stronger winds there Sunday afternoon.
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