Updated 10:45 PM ET
A powerful winter storm system that pounded the nation's midsection, wrecking holiday travel plans and dumping a record snowfall in Arkansas, began lashing the Northeast on Wednesday with high winds, snow and sleet.
The storm, which knocked out power to thousands of homes, mainly in Arkansas, was blamed in at least six deaths.
Hundreds of flights were canceled or delayed, scores of motorists got stuck on icy roads or slid into drifts, and blizzard warnings were issued amid snowy gusts of 30 mph that blanketed roads and windshields, at times causing whiteout conditions.
David Bernard, a meteorologist at CBS Miami affiliate WFOR, reports that New York, New Jersey and the Northeast can expect heavy rain overnight and into the morning.
Forecasters warned not to underestimate the power of the storm.
"The way I've been describing it is as a low-end blizzard, but that's sort of like saying a small Tyrannosaurus rex," said John Kwiatkowski, a meteorologist with the National Weather Service in Indianapolis.
A reported 41 tornadoes have touched down in the South since yesterday, according meteorologist Troy Kehoe of CBS Indianapolis affiliate WISH-TV. One of those massive twisters tore through Mobile, Ala., where more than 130 home or businesses were damaged or destroyed.
"I was screamin and hollerin, I was just scared to death," a resident told Kehoe.
The system, which spawned Gulf Coast region tornadoes on Christmas Day and a historic amount of snow in Arkansas, pushed through the Upper Ohio Valley and headed toward the Northeast. Forecasts called for 12 to 18 inches of snow inland from western New York to Maine starting late Wednesday and into Thursday.
The National Weather Service said Wednesday night that spotters had reported up to a foot of snow in some Pennsylvania counties. And a mix of snow, sleet and rain accompanied by high winds arrived in western Massachusetts late Wednesday. Forecasters predict 10 to 12 inches of snow in western and central Massachusetts.
The system was expected to taper off into a mix of rain and snow closer to the coast, where little or no accumulation was expected in such cities as Philadelphia, Boston and New York.
The storm left freezing temperatures in its aftermath, and forecasters also said parts of the Southeast from Virginia to Florida would see severe thunderstorms.
Schools on break and workers taking holiday vacations meant that many people could avoid messy commutes, but those who had to travel were implored to avoid it. Snow was blamed for scores of vehicle accidents as far east as Maryland, and about two dozen counties in Indiana and Ohio issued snow emergency travel alerts, urging people to go out on the roads only if necessary.
Some 40 vehicles got bogged down trying to make it up a slick hill in central Indiana, and four state snowplows slid off roads as snow fell at the rate of 3 inches an hour in some places.
Two passengers in a car on a sleet-slickened Arkansas highway were killed Wednesday in a head-on collision, and two people, including a 76-year-old Milwaukee woman, were killed Tuesday on Oklahoma highways. Deaths from wind-toppled trees were reported in Texas and Louisiana.
More than 1,600 flights were canceled, according to the aviation tracking website FlightAware.com, and some airlines said they would waive change fees. Lengthy delays were reported Wednesday at the three major New York City-area airports, the Federal Aviation Administration said.