Strengthening low pressure tracked across the Great Lakes and into the northeast CONUS on March 26th.  With the surface low track and low-level jet positioning both favorable, strong wind gusts were able to develop in the deep mixing behind a cold front. Numerous surface wind gusts in the 40 to 60 MPH range were recorded from the predawn hours into the early afternoon.
Widespread reports of tree and wire damage were received from southwest Pennsylvania. A few incidents of structural damage were noted, chiefly in Beaver and Allegheny Counties. West Penn Power reported over 17,000 customers without power at one point during the morning, with Duquesne Light seeing 6,767 outages.

High Wind in MERCER, PENNSYLVANIA
From 26-MAR-21 02:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees and power lines were reported to be down throughout the county.

High Wind in LAWRENCE, PENNSYLVANIA
From 26-MAR-21 02:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees were reported to be blown down on High Hill Road and Bedford Sharon Road in the northwest part of the county, and on Chewton Wurtemburg road in the south.

High Wind in BEAVER, PENNSYLVANIA
From 26-MAR-21 02:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 7.00K
Reported by: 911 Call Center

Route 68 near Rochester was closed for a time due to downed trees. Also, some siding was torn off of a home by high wind in New Sewickley Township.

High Wind in FAYETTE RIDGES, PENNSYLVANIA
From 26-MAR-21 05:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees were reported to be blown down in eastern Fayette County.

High Wind in WESTMORELAND RIDGES, PENNSYLVANIA
From 26-MAR-21 05:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees were reported to be down in the ridge areas of the county.

High Wind in ALLEGHENY, PENNSYLVANIA
From 26-MAR-21 05:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 MG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The highest wind gusts reported were 58 MPH at Allegheny County Airport at 9:26 AM, and 53 MPH at Pittsburgh International Airport at 10:00 AM.  At Glenshaw, a large tree was blown down on to a house, causing significant damage. The same event occurred on Belladonna Drive in Shaler Township. Trees and wires were reported to be blown down at the intersection of Donaldson Road and North Branch Road in North Fayette Township and at Union Ave in Oakdale, blocking the road in both cases. A high tension wire was downed at the intersection of Kurt Drive and Linendale Drive. Trees and wires were also downed at Glencoe Avenue in Green Tree, as well as along Route 88 in West Liberty. A particularly large tree was blown down in front of a home on Loretta Street in Greenfield.

High Wind in WESTMORELAND, PENNSYLVANIA
From 26-MAR-21 05:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several reports of downed trees and power lines were received, including from Penn Township, Bell Point Road in Bell Point, and along Mt. Pleasant Road.  Westmoreland Public Safety noted that there were several other incidents of downed trees throughout the county.

High Wind in JEFFERSON, PENNSYLVANIA
From 26-MAR-21 02:00:00 to 26-MAR-21 13:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The highest measured gust was 55 MPH at DuBois Airport at 9:59 AM.  The county emergency manager reported that there were widespread incidents of downed trees and power lines across the county.