Winter storm dumps snow on Northeast with dangerously cold temperatures BOSTON -- A winter storm that dropped nearly 2 feet of snow just north of Boston, temporarily shut down major highways in New York and Pennsylvania and forced airlines to cancel thousands of flights nationwide menaced the Northeast on Friday with howling winds and dangerously cold temperatures. The storm was blamed for at least nine deaths in the eastern half of the country. The nor'easter - which brought plummeting temperatures that reached 8 degrees below zero in Burlington, Vt., early Friday with a wind chill of 29 below zero - dumped 23 inches of snow in Boxford, Mass., by early Friday and 18 inches in parts of western New York near Rochester. Thirteen inches of snow fell in Boston, while Lakewood, N.J., got 10 inches and New York's Central Park got 6. CBS News correspondent Terrell Brown reported on "CBS This Morning" Friday from Port Jefferson on New York's Long Island that up to a foot of snow was expected there before the storm moved on. On a mostly empty Main Street in Concord, N.H., Kathy Woodfin hustled to work, a tall iced coffee turning to caramel-colored slush in her left hand. It was 7 degrees at 9 a.m. and the wind zipping through alleyways blew a fine, stinging snow in her face. "I just run from heated car to heated building," the New Hampshire native said. It's just like down South, where they run from air conditioned car to air conditioned building. The snowfall, frigid temps and stiff winds extended the holiday break for some students in the Northeast for a second day while posing the first test for New York City's new mayor and perhaps the last challenge for Boston's outgoing one. U.S. airlines canceled more than 2,300 flights Thursday because of the snowfall and low visibility. By Friday morning, about 1,800 flights were canceled nationwide, according to the aviation tracking website FlightAware.com. New York Gov. Andrew Cuomo ordered three major highways closed overnight. The Thruway between Albany and the Bronx, the Long Island Expressway and Interstate 84 between the Pennsylvania and Connecticut borders all reopened Friday morning. Southbound Interstate 95 closed in Philadelphia for several hours because of a jackknifed tractor-trailer. A jackknifed tractor-trailer caused the closure of a stretch of Interstate 95 in Philadelphia in heavy snow Jan. 3, 2014. De Blasio, who as public advocate in 2010 criticized his predecessor Mayor Michael Bloomberg for his handling of a large snowstorm, dispatched hundreds of plows and salt spreaders on the streets as soon as the snow started falling Thursday night. The New York metropolitan area got between 6 to 11 inches of snow. On Friday morning, de Blasio was shoveling the sidewalk outside his Brooklyn home. Wearing a black jacket and gloves, he joked with reporters and demonstrated proper shoveling techniques. He later brought out salt to spread on the walk. Amtrak was running trains on all of its Northeast lines on Friday but operating on a modified schedule, spokeswoman Christina Leeds said. Commuter trains Metro-North Railroad, which runs trains between New York City and suburban Connecticut, Long Island and New York's Hudson Valley, the Long Island Rail Road and New Jersey Transit were operating on weekend schedules. Chains were placed on New York City buses so they would not get stuck in drifts. Slick roads were blamed for traffic deaths in Michigan, Kentucky, Indiana and Illinois. Authorities said a 71-year-old woman suffering from Alzheimer's disease froze to death after she wandered away from her rural western New York home. It merged with low pressure moving northeast off the mid-Atlantic coast, forming a nor'easter. About 10 Southwest Airlines planes were stuck on the tarmac at Midway for up to four hours amid flight backlogs. In Wisconsin, a record low temperature was set Friday morning in Green Bay, where the mercury dipped to minus 18. The National Weather Service said that topped the 17-below-zero mark last recorded in 1979.