More than 1,800 of New York-area flights canceled

The storm hitting the northeastern U.S. is causing major headaches for air travelers.

The Port Authority of New York and New Jersey says more than 1,800 flights had been canceled at the three major New York-area airports as of 4 p.m.

That number included more than 700 cancellations at Newark Liberty International Airport, which is 56 percent of the airport's normal schedule. JFK International Airport reported 529 cancellations (about 60 percent), and LaGuardia Airport reported at least 587 cancellations (about 60 percent of flights).

Additional cancellations are expected as the storm strengthens throughout the day Wednesday.  Six to 10 inches of snow was forecasted for New York City. 

The Port Authority Bus Terminal is reporting that most long-haul carriers serving the facility -- including Greyhounds and Adirondack Trailways -- have canceled service, and urges travelers to call their carrier before going to the facility. In addition, Shortline has also canceled service for today. Other carriers are running reduced service. No cancellations have been reported this morning at the George Washington Bridge Bus Station.

The Associated Press contributed to this report.