EF1 tornado in Beaver County, Pennsylvania

A new tornado, from the same storm cell that affected Shippingport earlier, touched down in the Jackson Ave area of Monaca then continued east, uprooting hardwood and softwood trees. A car windshield was damaged due to a tree falling on it on the aforementioned street. Tree damage was visible along Elkhorn Road with numerous hardwood trees down. A mobile home lost its roof due to the storm. There was a brief lull in the damage as the tornado crossed the Ohio River into Freedom. The damage quickly picked up with damage observed on 4th Ave. The worst damage

was observed on this side of the river.

Scattered down trees and large branches were visible along 9th Ave Ext into New Sewickley Township. At the top of the hill and points east along Harvey Run Road at least 30 trees were uprooted. There was no structural damage observed apart from the awning of a front porch in the city of Freedom, which was displaced by a falling tree.

Estimated Maximum Wind Speed...85 mph.

A lone supercell, that advanced along a cold front, formed in the early morning hours of October 16th. This cell had a history of tornadoes before tracking into eastern Ohio and western PA. The supercell was located near a mesoscale low and/or mesoscale vortex, which supported locally enhanced helicity. Furthermore, this cell was in an area of relatively stronger low-level instability. Surface dew points were favorable, low/mid 60s, prior to touch down and there were backed surface winds.