Severe thunderstorms rumbling through Pennsylvania this afternoon and tonight downed trees and power lines and blew the roofs off at least two industrial buildings on opposite sides of the state.
Emergency officials in Venango County in Western Pennsylvania reported that downed wires had trapped some people in their homes.
Winds had blown off the roofs of a home in Clarion and a steel mill in Hermitage, Mercer County.
The (Scranton) Times-Tribune says officials in Eastern Pennsylvania's Lackawanna County reported winds had severely damaged the roof of an Olyphant veal packing plant.
There were also reports of hail the size of golf balls falling in some areas.
About 800 Duquesne Light customers in southwestern Pennsylvania were without power immediately after the storms, mainly in the western and northern parts of its service area, spokesman Joey Vallarian said.