NEW YORK (CBSNewYork) — The fourth nor’easter to hit the Tri-State area caused traffic, transit and flight changes Wednesday.

FLIGHTS:

Hundreds of flights have been canceled at Kennedy, Newark and LaGuardia airports.

More than 600 flights had been canceled at John F. Kennedy Airport.

“The Port Authority has been on high alert since this storm approached,” said Port Authority Executive Director Rick Cotton. “Air travel will be severely, severely affected by this storm.”

LaGuardia Airport canceled all flights Wednesday afternoon.

Cotton said there will also be “extremely limited flight operations at both John F. Kennedy and Newark.”

“I can not stress strongly enough that anyone who expects or wants to go to an airport should check with their carrier,” he said. “Most flights, both arrivals and departures, will be affected.”

Nearly 80 percent of flights at Newark Liberty International Airport had been canceled Wednesday.

For the latest information on area airports, click here.

TRANSIT:

Metro-North operated on reduced service throughout the day and was expected to run normally on Thursday.

Long Island Rail Road says if 10 inches or more of snow falls, it may be forced to suspend service to focus on snow removal.

The railroad also urged customers to “defer non-essential travel.” For those who must travel, the LIRR says riders should expect delays and allow for extra travel time.

The LIRR also added extra trains from Penn Station for those leaving the city early because of the storm.

For more information from the MTA, click here.

NJ TRANSIT implemented its severe weather schedule level 1 for Wednesday.

All NJ TRANSIT bus service statewide, including to and from the Port Authority Bus Terminal, was suspended starting at 3 p.m. Wednesday.

The agency announced normal weekday service will resume Thursday.

For more information from NJ TRANSIT, click here.

Amtrak said modified service would continue into Thursday.

  • Modified service for Thursday, March 22, includes:
  • Acela Express Service (Washington, D.C. – New York City – Boston: 2159 will not operate between New York City and Boston.
  • Northeast Regional Service (Boston – New York City – Washington, D.C.):
  • 171 and 93 will not operate between Boston and New York City
  • 95 will not operate between Boston and Washington, D.C
  • 94 will not operate between Newport News, Va. and Richmond, Va.
  • Keystone Service (Harrisburg, Pa. – New York City): 600, 640, 641 and 643 will operate between Harrisburg, Pa. and Philadelphia only.
  • Carolinian Service (New York City – Charlotte, N.C.): 79 and 80 will not operate between Raleigh, N.C. and New York Penn Station.

Canceled service for Thursday, March 22, includes:

  • Acela Express Service (Washington, D.C. – New York – Boston): 2190, 2150, 2100, 2154, 2104, 2158, 2160, 2164, 2166, 2168, 2126, 2128, 2103, 2107, 2109, 2151, 2153, 2155, 2117, 2121, 2163, 2165, 2167, 2171
  • Northeast Regional Service:
  • (Washington, D.C. – New York – Boston): 190, 170, 180, 130, 172, 151, 111, 183, 185, 137, 173, 179
  • (Boston – Newport News, Va.): 86, 174, 176
  • Empire Service (New York City – Albany, N.Y.): 230, 234, 238, 242, 233, 235, 239, 243
  • Keystone Service (Harrisburg, Pa. – New York City): 609, 647, 651, 642, 646, 656, 620
  • Palmetto Service (New York – Miami): 89, 90
  • Downeaster (Boston – Portland – Brunswick) and Amtrak Shuttle Service (New Haven, Conn., and Springfield, Mass.,) will continue to operate as scheduled.

The Port Authority Bus Terminal says Greyhound has suspended all service until Thursday morning.

Officials say there may also be various ferry service changes due to the weather. Riders should check with their providers before leaving.

ROADS:

In New York, a lift on tractor trailers was lifted throughout the region at 8pm.

“As we continue to deal with yet another winter storm, conditions have improved enough to lift the ban on tractor trailers on I-84,” Cuomo said. “Driving conditions remain difficult in many other places throughout downstate and I am urging New Yorkers to avoid unnecessary travel so our road crews can continue clearing the roads as quickly as possible. We remain in regular communication with neighboring states and these bans will be re-evaluated as conditions improve.”

In New Jersey, authorities banned all tractor-trailers, passenger cars pulling trailers, motorcycles and RVs from traveling on I-78, I-80, I-280 and I-287 until midnight. There was also a 45 mph speed restriction in effect on the New Jersey Turnpike.

For additional resources on traffic, transit and flight changes, click here.

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