Some Duquesne Light Customers Are Without Power

SECOND UPDATE: Duquesne Light reported that about 350 customers still are out of power as of 8 a.m. Saturday, down from 11,000 at its peak after Friday's thunderstorms.

The company said it plans to have all customers' service restored by 6 p.m. Saturday.

The outages occurred after severe thunderstorms swept across Allegheny County on Friday.

By evening, the National Weather Service lifted the afternoon's severe thunderstorm and flash flood warnings that were issed for Allegheny County.

The Pine-Richland community was not hit hard by the storms. But flash flooding on Pittsburgh's Washington Boulevard near Highland Park took the lives of three people.

More flash flooding was reported at Liberty Avenue and Sassafras as well as Oakland, Squirrel Hill and the East End area of Pittsburgh, the weather service's website stated.

Several cars were under water in Shadyside.

"Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely," the weather service warned. "Most flood deaths occur in automobiles." 

A flash flood watch stayed in effect until 9 p.m. A watch means conditions may develop that lead to flash flooding.