美国超1400架次航班被取消

Group 1 - The core viewpoint of the article highlights the significant impact of an approaching winter storm on the U.S. aviation industry, with over 1,400 flights canceled on January 24 due to severe weather conditions [1][2] - At least 11 states in the U.S., including Arkansas, Georgia, and Texas, have declared a state of emergency in response to the impending winter storm, which is expected to bring heavy snowfall, sleet, freezing rain, and extreme cold weather [2] - The National Weather Service has warned that over 160 million Americans will face various hazardous weather conditions due to the winter storm, which is projected to last until January 25 [2] Group 2 - The article references a previous winter storm in 2021 that caused widespread power outages in Texas, leaving millions without electricity for days and resulting in over 200 fatalities [3]