The National Weather Service in Pittsburgh has confirmed that a tornado occurred in Donora, Washington County Wednesday afternoon.
According to the storm survey team, a tornado occurred at approximately 2:42pm this afternoon.
The NWS says the tornado traveled briefly across the Monongahela River into Westmoreland County before dissipating.
The weather service said most of the damage was caused by wind of 60-70 mph, the most-significant damage was consistent with maximal wind of 80-85 mph.
The wind speed corresponds to a rating of EF0 on the Enhanced Fujita Scale.
Damage was found along a one-mile track, with most of the damage found along 1st and 2nd Streets from Allen to Waddell Avenues.
The weather service said trees were uprooted or snapped, and several homes sustained damage to siding and roofing. Two chimneys also lost bricks, several porch awnings were destroyed and a wall of a garage was blown out.
More damage was found downhill toward the river and the last debris was noted on the hillside south of Webster in Westmoreland County, between Webster Hollow Road and Turkey Hollow Road.