A strong pressure gradient behind a cold front produced damaging winds across all of western Pennsylvania, northern West Virginia, eastern Ohio, and Garrett county Maryland. Sustained winds were from 30 to 40 MPH with gusts over 60 MPH. The strongest reported wind gusts were 68 MPH in Franklin, PA and 66 MPH in Eighty Four, PA. Trees and power lines were reported down across the region, with more than 50,000 homes without power late afternoon on the 9th at the peak of the winds.

High Wind in ALLEGHENY, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in ARMSTRONG, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in BEAVER, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in JEFFERSON, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

High Wind in LAWRENCE, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MERCER, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in VENANGO, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High Wind in WASHINGTON, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in WESTMORELAND, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in BUTLER, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High Wind in CLARION, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in FAYETTE, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in FOREST, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

High Wind in GREENE, PENNSYLVANIA
From 09-DEC-09 13:00:00 to 09-DEC-09 18:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in INDIANA, PENNSYLVANIA
From 09-DEC-09 14:00:00 to 09-DEC-09 20:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

High Wind in BEAVER, PENNSYLVANIA
From 09-DEC-09 16:00:00 to 09-DEC-09 16:10:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 750.00K
Crop damage: 0.00K
Reported by: Coast Guard

The U.S. Coast Guard reported wind driven high waves on the Ohio River caused the towboat Sam S to sink to the bottom of the river near Georgetown in Beaver county.
The crew of the towboat was rescued by another boat with no injuries.