冬季风暴Fern开始横扫美国，逾1.8亿人处于冬季天气警报之下
2026年1月23日，一场大规模冬季风暴开始横扫美国，冻雨当天落入德克萨斯州，美国国家气象局的各类冬季天气警报覆盖大半个国家，至少1.82亿人处于冰雪观察或警报之下，逾2.1亿人处于严寒警报之下。
据美国国家气象局天气预报中心事后复盘，1月23日早晨，与对流层极地涡旋相连的北极锋面快速扫过美国中南部与东部；当天18时（UTC），一个1050百帕的强高压穹顶盘踞在北达科他州西部并向东滑动，把严寒空气锁在美国南部与东部上空。与此同时，下加利福尼亚上空的闭合低压把来自亚热带东太平洋的丰沛水汽从1月23日下午起持续送入美国南部，暖湿气流爬升到近地面的严寒空气之上，正是冻雨与雨夹雪的典型配方。
气象部门当天警告，这场风暴将从南部向东北推进，冰冻灾害在部分地区可能堪比飓风，华盛顿至纽约、波士顿一线预计降雪约一英尺。1月23日晚，冬季天气危害率先在南部落基山与高平原地区展开，德克萨斯州居民当天已在抢购备灾，Corpus Christi 等地超市货架被买空。
这场风暴随后被命名为 Fern，其高峰影响留待后续报道。
关联：冬季风暴横扫美国，逾110万用户停电、单日九千多架次航班取消
Winter Storm Fern Begins Sweeping the U.S., With More Than 180 Million People Under Winter Weather Alerts
On January 23, 2026, a massive winter storm began sweeping across the United States. Freezing rain fell in parts of Texas that day, and National Weather Service watches, warnings and advisories covered much of the country: at least 182 million people were under watches or warnings for ice and snow, and more than 210 million were under cold weather advisories or warnings.
According to the Weather Prediction Center's later review, an arctic front tied to a lobe of the tropospheric polar vortex raced through the Mid-South and the East on the morning of January 23, and by 18Z a strong dome of 1050-millibar high pressure analyzed over western North Dakota was sliding east, locking bitterly cold air over the southern and eastern United States. At the same time, a closed low over Baja California began streaming rich subtropical East Pacific moisture into the southern United States that afternoon, overrunning the frigid surface air in the classic setup for sleet and freezing rain.
Forecasters warned that day that the storm would track from the South into the Northeast, that ice damage in some areas could rival that of a hurricane, and that about a foot of snow was expected from Washington through New York to Boston. Winter weather hazards began late on January 23 in the Southern Rockies and the High Plains, and Texans were already stocking up, emptying supermarket shelves in places such as Corpus Christi.
The storm, later named Fern, would reach its peak impact in the days that followed.
来源：美国国家气象局
发布：GSM·美国（发布链接）
图片来源：图：2026年1月23日晚，美国德克萨斯州 Corpus Christi 一家 H-E-B 超市的货架在冬季风暴 Fern 到来前被居民买空。Wade C 摄，公共领域，经 Wikimedia Commons。 / Photo: Shelves emptied by shoppers at an H-E-B supermarket in Corpus Christi, Texas, on the evening of January 23, 2026, ahead of Winter Storm Fern. Photo by Wade C, public domain, via Wikimedia Commons.
GSM Global · 本篇英文版 English edition of this story
- 2026-01-23 10:25冬季风暴Fern开始横扫美国，逾1.8亿人处于冬季天气警报之下本篇
- 2026-01-25 08:32冬季风暴横扫美国，逾110万用户停电、单日九千多架次航班取消
