美国东部本周迎冷空气与发展中的东北风暴：纽约州、佛蒙特州、新罕布什尔州与缅因州高地周四至周六或见至少1英寸积雪，纽约市以降雨为主
华盛顿 — 美国国家气象局天气预测中心 11 月 9 日至 10 日的预报显示，一股来自加拿大的冷空气将随急流深槽南下，美国东部本周中后段明显降温。天气预报频道预计，周三至周五，从芝加哥到亚特兰大，白天最高气温将下降约 20 华氏度。
一个风暴系统将从北部平原移向阿巴拉契亚地区并增强，周四早晨起给美国东部大部带来大风。该系统与冷空气相遇后，降雨可能转为冬季性降水，五大湖上游地区周四早晨或见湿雪。
天气预测中心的概率图显示，周四至周六至少 1 英寸积雪最可能出现的地区包括纽约州、佛蒙特州、新罕布什尔州与缅因州的大片地区、密歇根州上半岛，以及西弗吉尼亚州东部一条狭窄地带，积雪以高海拔地区最可能累积。周四夜里，东海岸外海可能形成一场东北风暴，给中大西洋与新英格兰地区带来雨雪混合或降雪。
沿海大城市以降雨为主。据国家气象局预报，纽约市周四以雨为主，最高气温约 59 华氏度、最低约 45 华氏度，周五最高约 47 华氏度，气温保持在冰点以上。预报同时指出，各模式对风暴速度与路径仍有分歧，降雪总量与落区仍不确定，后续预报以国家气象局更新为准。
Cold Air and a Developing Nor'easter Reach the Eastern United States This Week, with at Least 1 Inch of Snow Most Likely Thursday to Saturday across Higher Ground in New York, Vermont, New Hampshire and Maine, while New York City Sees Mainly Rain
Washington — Forecasts from the National Weather Service Weather Prediction Center on November 9 and 10 show a deep dip in the jet stream sending Canadian cold air into the eastern United States, with temperatures dropping sharply by late Wednesday and Thursday. The Weather Channel expects daytime highs to plunge about 20 degrees Fahrenheit from Chicago to Atlanta between Wednesday and Friday.
A developing storm system will migrate from the northern Plains into the Appalachians, intensifying and bringing high winds to much of the East by Thursday morning. Where the storm meets the cold air, rain could turn to wintry precipitation, and the upper Great Lakes could see wet snow by Thursday morning.
The Weather Prediction Center map shows at least 1 inch of snow most likely between Thursday and Saturday across large parts of New York, Vermont, New Hampshire and Maine, the Upper Peninsula of Michigan and a narrow band of eastern West Virginia, with accumulation most likely at higher elevations. By Thursday night, a nor'easter may form off the Eastern Seaboard, bringing a wintry mix or snow to the Mid-Atlantic and New England over the weekend.
Coastal cities will see mainly rain. The National Weather Service forecast for New York City calls for rain on Thursday with a high near 59 degrees Fahrenheit and a low around 45, and a high near 47 on Friday, with temperatures remaining above freezing. Forecasters note that models still disagree on the storm speed and track, so snowfall totals and locations remain uncertain, and later updates are as issued by the National Weather Service.
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图片来源：Wikipedia/Wikimedia Commons 词条主图：Cold air intake
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