跳到内容
现在

灾害 · 阿拉斯加湾

阿拉斯加近海风暴警报延长，预报阵风可达75节

星期日修订后的预报将风暴警报延长至星期一夜间午夜。两侧的大风警报使近海危险状况持续达27小时。

文字 阅读需 4 分钟 · 26 个来源

HeyDex

原语言视频

译自英文原文。

阿拉斯加附近的船员将面临危险状况多久——不只是最强风力期间？在冰岬与萨克林岬之间，警报时段远远超出风暴预报峰值：风暴来临前有6小时大风警报，接着是15小时风暴警报，然后还有6小时大风警报。也就是说，连续27小时处于大风或风暴警报之下，而且即使最强风力减弱后，仍预报有非常大的海浪。⁠26

美国国家气象局朱诺办事处于2026年11月8日星期日下午3:27（阿拉斯加标准时间）发布消息，强化了预报。预报称，风暴期间将吹东风，风速为40–60节，阵风可达75节，浪高为35–40英尺。风暴警报现定于11月9日星期一上午9时开始，持续至星期一夜间午夜——即11月10日星期二的开始时刻。⁠26

对于计划航程的船只而言，关键变化不只是阵风预报值提高。风暴警报时段比此前警报所述的星期一下午6时结束时间延后了6小时。而延长后的时段结束时，预报仍称浪高将达30–35英尺。警报级别变化并不意味着海况恢复平静。⁠1⁠26

一个近海区域，多个警报时段

受影响海域属于海洋预报区PKZ672，气象局将其标示为“冰岬至萨克林岬外15至80海里”。这里的距离是指阿拉斯加湾内离岸的海里。35–40英尺的浪高预报适用于这些指定海域，并非预报陆地上的水位会升至这一高度；这项警报也不是针对沿海社区的疏散令。⁠26

风暴来临前的情况同样重要，因为危险海况会在风暴警报开始前出现。星期日发布的消息列出一段初始小型船只公告，持续至下午6时，浪高为6–8英尺。另一段公告覆盖星期一凌晨0时至3时。随后，在风暴来临前的6小时大风警报时段内，预报海况将急剧恶化。以下所有当地时间均为阿拉斯加标准时间。⁠26

近海警报时程

  1. 11月9日星期一，阿拉斯加标准时间凌晨0时至3时

    小型船只公告：东风风速25–35节，阵风可达45节，浪高7–9英尺。

    26
  2. 11月9日星期一，阿拉斯加标准时间凌晨3时至上午9时

    大风警报：东风风速30–50节，阵风可达65节，浪高25–30英尺。

    26
  3. 11月9日星期一，阿拉斯加标准时间上午9时至午夜

    风暴警报：东风风速40–60节，阵风可达75节，浪高35–40英尺。

    26
  4. 11月10日星期二，阿拉斯加标准时间凌晨0时至6时

    大风警报：东南风风速35–45节，阵风可达60节，浪高30–35英尺。

    26

这一序列意味着，实际的出航决策必须早于星期一上午9时。到凌晨3时，预报已经称浪高将达25–30英尺，阵风最高可达65节。如果等到风暴警报时段开始才采取行动，就会忽略此前一段相当长的危险时段。27小时指的是首尾相接的警报时段总长，并非风暴级大风持续27小时。⁠26

风力预报增强，时间安排更清晰

此前的警报于星期日上午11:59发布，预报东风风速为35–55节，阵风最高可达70节。其文字说明称，风暴警报时段为星期一上午9时至下午6时，但时段字段前后不一致。下午发布的消息已取代这些数值和结束时间：风速范围升至40–60节，阵风预报最高值升至75节，警报持续至午夜。预报浪高范围仍为35–40英尺，没有变化。⁠1⁠26

后续消息还给出了相互吻合的时间。其编码的风暴警报时段与文字所列时程一致：11月9日18:00 UTC至11月10日09:00 UTC，也就是阿拉斯加标准时间星期一上午9时至星期一夜间午夜。这里的区别很重要：星期一18:00 UTC是风暴警报时段的开始，而不是结束。⁠26

这些是预报，并非称所述风速或浪高已经实测到。警报也不能证明任何船只已经倾覆或受损。它指出了船员必须为之做好准备的后果，并警告称，风暴级大风和危险海况可能导致船只倾覆或受损，并降低能见度。⁠26

气象局的建议很明确：“船员应留在港内、改变航向，和/或为恶劣海况做好船只防护。”对于正在决定是否出航、继续航程或为船只做准备的船员，这项建议必须结合整个警报序列来理解，而不能只看风力最强警报所覆盖的时段。⁠26

星期一夜间午夜并不意味着情况会立即好转。风向将由东风转为东南风，但阵风仍可达60节；之后的大风警报时段内，浪高仍将维持在30–35英尺。该警报预定于星期二上午6时结束，这只是预报时段的界限，并不保证航行安全。因此，对开篇问题的回答是：危险状况持续时间长于风暴峰值期——预报显示其前后都有危险状况，而且风暴警报到期后，海况仍然构成严重威胁。⁠26

来源5

在此处引用的来源中，National Weather Service最先发布，比本报道播出早13小时。 随后还有2家媒体发布。
  1. National Weather Service
  2. Defcon Level
  3. Warning Vector
  4. HeyDay News

2家媒体未注明日期：NOAATomorrow.io Weather API Docs

按媒体查看所有来源

来自 5 家媒体的 26 个来源· 引用最多的优先

播出原貌
  1. A storm threatens vessels off Alaska with seas up to forty feet.
  2. East winds are forecast at forty to sixty knots, with gusts reaching seventy-five knots. The storm warning now lasts six hours longer, and dangerous seas continue afterward.
  3. How long will crews face hazardous conditions before and after the strongest winds?
  4. The affected waters lie between Icy Cape and Cape Suckling in the Gulf of Alaska, fifteen to eighty nautical miles offshore. Mariners will find that area listed as forecast zone P K Z six seventy-two.
  5. The storm warning begins at nine Monday morning and continues through midnight Monday night, the beginning of Tuesday. All times are Alaska Standard Time. The updated forecast was issued Sunday afternoon, November eighth.
  6. East winds rise from thirty-five to fifty-five knots to forty to sixty. Gusts increase from seventy to seventy-five knots. The earlier six p.m. ending moves to midnight Monday night, keeping the storm warning in place six hours longer.
  7. The earlier alert had conflicting timing information. The updated warning gives a clear schedule, with its encoded start and end times matching the written hours. Crews can plan around a fifteen-hour storm-warning period.
  8. The forecast for seas stays at thirty-five to forty feet during that storm period. Those are expected offshore conditions. For vessels making a passage, the combination of strong winds and very large seas brings the risk of capsizing or damage.
  9. Crews deciding whether to leave port have an earlier deadline to consider. Hazardous conditions build before the storm warning begins, with small craft advisories followed by a gale warning during the hours before nine Monday morning.
  10. The first small craft advisory lasts until six Sunday evening, with seas of six to eight feet. From midnight to three Monday morning, east winds reach twenty-five to thirty-five knots, gusting to forty-five, with seas of seven to nine feet.
  11. By three Monday morning, the forecast calls for a much rougher sea. East winds reach thirty to fifty knots, with gusts up to sixty-five knots. Seas climb to twenty-five to thirty feet during the gale warning that lasts until nine.
  12. The first gale warning covers three to nine Monday morning. The storm warning then lasts fifteen hours, from nine until midnight. Another gale warning takes over at midnight and runs until six Tuesday morning, extending the danger beyond the storm period.
  13. That schedule gives crews twenty-seven continuous hours under gale or storm warnings. The strongest forecast conditions occupy the middle of that stretch, but the surrounding hours also carry winds and seas capable of making a passage dangerous.
  14. Storm-force winds and hazardous seas can capsize or damage vessels and reduce visibility. Mariners are advised to remain in port, change course, or secure their vessels for severe conditions. Those preparations need to account for the hazardous hours on both sides of the storm warning.
  15. At midnight Monday night, the wind shifts to the southeast, with speeds forecast at thirty-five to forty-five knots. Gusts can still reach sixty knots. Seas remain at thirty to thirty-five feet through the following gale-warning period, which ends at six Tuesday morning.

译文更新于

近期播出