A historic blizzard is set to impact millions along the East Coast, with blizzard warnings now in effect from Delaware to Massachusetts. New York City is preparing for its first blizzard warning in nine years, with projections of up to 20 inches of snow expected. Travel disruptions are anticipated as airlines begin canceling flights ahead of the significant winter storm. State authorities in New Jersey have declared a state of emergency as residents brace for heavy snowfall and strong winds. Accumulations could reach over a foot across many areas, raising concerns about travel safety and potential coastal flooding.