CONCORD, N.H. - A muted version of a winter storm that has killed more than a dozen people across the eastern half of the country plodded across the Northeast on Thursday, trapping airliners in snow or mud and frustrating travelers still trying to return home after Christmas.

The storm, which was blamed for at least 16 deaths farther south and west, brought plenty of wind, rain and snow to the Northeast when it blew in Wednesday night. Lights generally remained on and cars mostly stayed on the road, unlike many harder-hit places including Arkansas, where 200,000 homes and businesses lost power.

By afternoon, the precipitation had stopped in parts of Pennsylvania, New Jersey, and Massachusetts, though snow continued to fall in upstate New York and northern New England. Parts of New Hampshire expected as much as 18 inches.

Dale Lamprey, who was clearing off the sidewalk outside the legislative office building in Concord, already had several hours of shoveling under his belt by 8:30 a.m. Thursday.

"I'm going to be shoveling all day, just trying to keep up with the snow," he said. "Which is impossible."

The Northeast's heaviest snowfall was expected to be in northern Pennsylvania, upstate New York and inland sections of several New England states before the storm heads into Canada on Friday, National Weather Service spokesman David Roth said.

On New York's Long Island, a Southwest Airlines jet bound for Tampa, Fla., veered off a taxiway and got stuck in mud Thursday morning. Officials said there were no injuries to the 129 passengers and five crew members. Though the area received heavy rain overnight, Southwest spokesman Paul Flanigan said it wasn't clear whether that played a role.

In Pittsburgh, a flight that landed safely during the storm Wednesday night got stuck in several inches of snow on the tarmac about two hours. The American Airlines flight arrived between 8 and 9 p.m., but then ran over a snow patch and got stuck.

Earlier, the storm system spawned tornadoes on Christmas along the Gulf Coast, startling people like Bob and Sherry Sims of Mobile, Ala., who had just finished dinner.

"We heard that very distinct sound, like a freight train," said Bob Sims, who lost electricity but was grateful that he fared better than neighbors whose roofs were peeled away and porches smashed by falling trees. In Georgiana, Ala., an 81-year-old man died Wednesday, a day after a tree fell on his home.

Deaths from wind-toppled trees also were reported in Texas and Louisiana, but car crashes caused most of the fatalities. Two people were killed in Kentucky crashes, a New York man was killed after his pickup truck skidded on an icy road in northwest Pennsylvania, and an Ohio teenager died after losing control of her car and smashing into a snowplow.