A significant winter storm has wreaked havoc across the United States, leading to the cancellation of over 3,600 flights on Monday alone, following a staggering 11,000 cancellations on Sunday. Major airports, including those in Boston, Dallas-Fort Worth, and New York, are experiencing substantial disruptions, with American Airlines bearing the brunt of the impact. The combination of freezing rain and heavy snowfall has created treacherous road conditions, making travel exceedingly dangerous. Strong winds and widespread icy conditions have prompted urgent warnings from the Federal Emergency Management Agency (FEMA), urging residents to take necessary precautions.