Major routes in and around York County are all passable and traffic is moving on them, a PennDOT spokesman said about 10 a.m. Tuesday.

"It's moving ... it's just slow," said Greg Penny, spokesman for the state Department of Transportation. "It looks like the heaviest part of the storm is through (the area)."

Those routes include Interstate 83 and Routes 30, 74 and 462, he said.

At 11:30 a.m., PennDOT lifted speed-limit restrictions on Interstate 83 and Route 30.

It was a different story during Tuesday morning's rush hour. Slick roads caused dozens of crashes on both state roads and smaller local roads.

PennDOT crews have been out throughout the storm, clearing routes, Penny said.

He urged drivers to remain vigilant.

"Drive for conditions," Penny said. "Take your time, be patient and allow plenty of space between your vehicle and the vehicle in front of you."

To see real-time traffic conditions on major highways in Central Pennsylvania, visit www.511pa.com.