Accidents are closing a number of eastern Pennsylvania highways as more than a half-foot of snow falls across much of the region.
The westbound lanes of the Pennsylvania Turnpike were closed early Thursday afternoon between Valley Forge and Downingtown.
Meanwhile, the Department of Transportation says Interstate 78 eastbound in Berks County remained closed after a tractor-trailer jackknifed before noon. A mid-afternoon accident on Interstate 81 closed the northbound lanes near Chambersburg in Franklin County and Interstate 83 northbound was closed near Loganville, south of York.
Interstate 70 eastbound in Fulton County reopened after a multi-vehicle accident closed it before noon, according to PennDOT.
Meanwhile, a PennDOT snow plow slid off the road in Indiana County, hitting a freight train.
At least 250 flights in and out of Philadelphia International Airport were canceled Thursday.