York County is still cleaning up from Tuesday night's storm, said county spokesman Carl Lindquist.
During the peak hour of the storm, York County 911 dispatchers handled 870 calls -- about double the normal amount, he said.
The fast-moving storm knocked down "quite a few" trees, branches and wires that caused travel difficulties and dangerous conditions throughout the county, Lindquist said.
About five or six homes were damaged by trees, he said, and tens of thousands of Yorkers were without power at the height of the storm.
At 3 p.m. Wednesday, about 5,400 Met-Ed customers and about 500 PPL customers in the county were without power.
"Our primary concern right now centers around the power outage," he said, although no critical facilities, such as nursing homes, were in the dark.