Thousands of flights were delayed or canceled Monday as a major winter storm swept much of the U.S. The big picture: As a sprawling and intense storm traverses the country, it has brought snow and frigid temperatures, knocked out power, grounded travel and brought the nation's capital to a halt.

More than 1,000 flights were canceled, and hundreds of others were delayed Monday after a winter storm blasted a large part of the U.S. with heavy snow and ice.

Airlines in the United States canceled more than 1,300 flights on Monday after a winter storm brought snow, ice and freezing temperatures to a broad swath of the country.

Flight cancellations and delays are stacking up as a major winter storm makes its way across the East Coast. As of about 10 a.m. EST, there were 1,525 flight cancellations and 1,931 flight delays within,