While some communities from Mercer County north to Erie got up to a foot or more of snow Monday night into this morning, Butler County escaped much of that accumulation.

In Butler County, the state Department of Transportation had all 42 trucks out overnight to get the roads ready for the morning drive to work.

Mike Mattis, PennDOT’s assistant manager for Butler County, said there were no problems clearing snow and salting.

“Everything is passable,” he said.

Mattis said the northern part of the county got up to three inches in some areas.

Roads in Slippery Rock Township were slick Monday night, but township Supervisor John Hines said workers got a handle of it.

Two school districts were affected by the weather system, Allegheny-Clarion Valley in Foxburg closed for the day, while Union in Rimersburg opened after a two-hour delay.

The National Weather Service reports at least 12 inches of snow on the ground in several communities by Monday night, including 13 inches in Edinboro and 17 in Canadohta Lake in Crawford County.

Intermittent squalls were being blamed for icy conditions on some roads.

Those squalls produced deeper snowfalls in isolated sections of Butler County. For example, Center Township got five inches of snow.