冬季风暴来袭 美国多地交通受阻电力告急

Core Viewpoint - A significant winter storm has begun to impact the United States, with extreme weather conditions expected to affect two-thirds of the country, leading to widespread power outages and flight cancellations [2][3]. Group 1: Weather Impact - The storm has already caused snowfall in Texas, Oklahoma, and Kansas, with predictions of severe cold, heavy snowfall, freezing rain, and ice storms across many regions [2]. - Over 200 million Americans are under winter storm warnings, with meteorologists describing the storm as the most intense of the winter season [2]. - In areas like North Dakota and Minnesota, temperatures have plummeted below -45 degrees Celsius, posing serious risks of hypothermia without proper protection [2]. Group 2: Regional Effects - In the Rocky Mountains, Central Plains, Mid-Atlantic, and Northeast, snowfall could exceed 305 millimeters, with record low temperatures expected to persist into the following week [2]. - Residents in Dallas are warned of potential ice accumulation of about 12.7 millimeters, leading to dangerous conditions and possible prolonged power outages [3]. - Major cities like Chicago and Oklahoma City have closed schools, and Washington D.C. is anticipating significant snowfall, prompting emergency preparations [5]. Group 3: Flight Disruptions - On the 23rd, over 1,000 flights were delayed or canceled nationwide, with more than half of these disruptions occurring in Dallas [5]. - By the 25th, over 5,000 flights had been canceled, indicating severe disruptions to air travel due to the storm [5]. Group 4: Climate Discussion - The storm is attributed to the expansion of the polar vortex, which has been linked to climate change, with some experts noting that such extreme weather events are becoming more frequent [6]. - Former President Trump questioned the concept of global warming in light of the cold weather, a statement that was quickly refuted by scientists who emphasized that cold weather events can still occur in a warming climate [6].