跟进：亚热带风暴「Josephine」移至 Nantucket 东南约195英里：新英格兰沿海阵风可超50英里

侵袭美国东海岸多日的东北风暴 10 月 21 日下午转化为亚热带风暴，获美国国家飓风中心（NHC）命名为「Josephine」，成为 2026 年大西洋飓风季第 10 个命名风暴。NHC 10 月 22 日清晨 5 时（美东时间）发布的第 3 号公告显示，Josephine 中心位于马萨诸塞州 Nantucket 东南约 195 英里处，最大持续风速 65 英里/小时，中心气压 988 毫巴，正以约 13 英里/小时的速度向东北移动，加速远离美国海岸；生成之初，其中心位于 Nantucket 以南约 265 英里处。

NHC 预计，Josephine 22 日晚些时候将略有增强，最大风速可达约 70 英里/小时，23 日凌晨前后在与高空槽相互作用的过程中转化为具飓风级风力的强大温带气旋，最大风速可达约 80 英里/小时，随后在北大西洋上空逐渐减弱。NHC 未对美国沿岸发布热带气旋警报，风暴主体将停留在外海，其中心将从 Newfoundland 以南掠过，不会登陆美国。

风暴庞大的风圈已给东海岸带来大风、大浪与沿岸洪水。NHC 表示，美国东北部沿海部分地区 22 日可能出现大风阵风，Nantucket 与 Martha's Vineyard 阵风可超过 50 英里/小时，Long Island 与马萨诸塞州东部阵风约 30 至 40 英里/小时；国家气象局已对东北部与中大西洋部分海域发布大风警报。中大西洋沿岸的轻度至局部中度沿岸洪水仍在持续，预计在本周其余时间的高潮时段反复出现。Josephine 掀起的大浪正影响美国东海岸大部与加拿大大西洋沿岸，可能造成威胁生命的海浪与离岸流。（GSM 据美国国家飓风中心、美联社报道）

Follow-Up: Subtropical Storm Josephine About 195 Miles Southeast of Nantucket: New England Coastal Gusts May Top 50 mph

A nor'easter that had battered the U.S. East Coast for days became Subtropical Storm Josephine on the afternoon of October 21, the 10th named storm of the 2026 Atlantic hurricane season. In its 5 a.m. ET advisory on October 22, the National Hurricane Center (NHC) put Josephine's center about 195 miles southeast of Nantucket, Massachusetts, with maximum sustained winds of 65 mph and a central pressure of 988 mb, moving northeast at about 13 mph and accelerating away from the U.S. coast. At formation, the center had been about 265 miles south of Nantucket.

The NHC expects Josephine to strengthen slightly later on October 22, reaching about 70 mph, and to become a powerful hurricane-force extratropical cyclone with maximum winds near 80 mph early on October 23 before gradually weakening over the North Atlantic. No tropical cyclone watches or warnings are in effect for the U.S. coast; the storm will stay offshore and pass south of Newfoundland.

The storm's large wind field is still bringing gusty winds, heavy surf and coastal flooding to the Eastern Seaboard. The NHC says Nantucket and Martha's Vineyard could see gusts exceeding 50 mph, with gusts of 30 to 40 mph on Long Island and in eastern Massachusetts, and the National Weather Service has issued gale warnings for parts of the Northeast and Mid-Atlantic waters. Minor to locally moderate coastal flooding continues along the Mid-Atlantic coast around high tides, and large swells are producing life-threatening surf and rip-current conditions along much of the U.S. East Coast and parts of Atlantic Canada. (GSM, based on National Hurricane Center and Associated Press reporting)

来源：GSM·美国（原文链接）

图片来源：图片来源：Wikimedia Commons，CC BY-SA 4.0，作者 Kevin Rutherford（Ktr101）；资料图：自 Nantucket 港眺望 Brant Point 海岸警卫队站与灯塔，非本次风暴实拍 / Photo: Wikimedia Commons, CC BY-SA 4.0, by Kevin Rutherford (Ktr101); file photo of Coast Guard Station Brant Point and its lighthouse seen across Nantucket Harbor, not taken during this storm

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