A winter storm has halted operations at some airports in the Northeast, and thousands of flights have been canceled. No flights will operate at Reagan Washington National or Dulles International airports on Wednesday, according to Washington Metropolitan Airports Authority spokeswoman Tara Hamilton.

More than 2 feet of snow piled up at the nation's capital as a blizzard pounded mid-Atlantic states Saturday, cutting power to hundreds of thousands in the region in what the president referred to as "Snowmaggedon."