美国纽约州和新泽西州宣布进入紧急状态 超1500架次航班被取消！什么情况？

Group 1 - A strong winter storm is impacting the northeastern United States, with New York City expected to experience its largest snowfall in nearly four years, approximately 7 inches [1] - New York and New Jersey have declared a state of emergency due to the storm, with the New York governor urging residents to avoid unnecessary travel [1] - The storm has led to widespread flight cancellations and delays, with over 1,500 flights canceled across the country, particularly affecting the Great Lakes region, central North Atlantic, and southern New England [3] Group 2 - The National Weather Service has issued winter storm warnings for the affected areas, predicting snow, ice, and strong winds that could significantly worsen travel conditions [3] - In Southern California, the storm has caused severe flooding and transportation disruptions, resulting in at least two fatalities and over 100,000 households and businesses losing power [6] - Six counties, including Los Angeles County, have declared a state of emergency, and evacuation orders have been issued for hundreds of homes in areas prone to mudslides due to previous wildfires [6]