UNION DALE, Pa. — Dozens of students from Philadelphia spent the day at a Red Cross shelter in northeastern Pennsylvania on Friday, their class ski trip cut short by yet another strong February storm that delivered fresh piles of wind-driven snow.

The winter blast brought high winds and 2 to 6 inches of snow to parts of the state, with a foot or more accumulating in some areas. While the state dodged the brunt of the storm, messy conditions closed schools and caused a series of crashes that shut down a 60-mile stretch of the Pennsylvania Turnpike in central Pennsylvania; about 90 motorists had to be rescued.

In northeastern Pennsylvania, 57 students and nine chaperones from Calvary Christian Academy in northeast Philadelphia were stranded by the storm when their buses became stuck in 4-foot snow drifts Thursday afternoon a few miles from Elk Mountain ski resort. Their return home was delayed until at least Saturday as heavy snow made roads treacherous and a cracked radiator hobbled one of the buses.

They spent Thursday night and all day Friday at the shelter, but arranged to spend Friday night at a nearby lodge.

At the shelter, restless teens fought boredom in the wood-floored meeting hall of Union Dale United Methodist Church, about 35 miles northeast of Scranton, as National Guard mechanics worked to repair their broken-down vehicle.

"We already are stir-crazy," said Pat Franks, 18, of Feasterville, wrapped in a Red Cross blanket as he got some fresh air outside. "Everybody's going nuts. Everybody's talking about what they would do if they were home. And I think it just makes it worse."

The youths passed the time by playing cards, listening to music, lounging on cots and throwing snowballs at each other. Everyone ate well, feasting on donated soup, pizza and roast beef for dinner.

It had already been a star-crossed trip even before the travel problems: one boy broke his collar bone in three places while skiing and two girls suffered minor injuries on the slopes.