冬季风暴侵袭美东北部，航班大面积延误，部分区域断电

Core Points - A winter storm impacted the Great Lakes region and parts of the Northeastern United States, causing heavy snowfall and icy roads, which disrupted travel and led to power outages [2] Group 1: Travel Disruptions - Over 3,000 flights were delayed and nearly 700 flights were canceled across the United States on the morning of December 27, according to FlightAware [2] - The New York metropolitan area's three major airports were the most severely affected, with JFK Airport experiencing an average flight delay of approximately two hours [2] Group 2: Weather Conditions - The National Weather Service reported that snowfall continued in the New York metropolitan area and northeastern New Jersey before dawn on December 27, while snowfall in other parts of the Northeast began to diminish [2] Group 3: Power Outages - In Michigan, heavy snowfall and ice caused trees to fall and damage power lines, resulting in over 30,000 households and businesses experiencing power outages on December 27, as reported by PowerOutage.us [2]