Scattered storms developed across southern Pennsylvania during the afternoon and early evening hours on July 21, 2020 in a low-CAPE, and relatively modest shear environment. These storms produced sporadic wind damage as they pushed eastward across southern Pennsylvania.

Thunderstorm Wind in SOMERSET, PENNSYLVANIA
From 21-JUL-20 13:40:00 to 21-JUL-20 13:40:00 (EST-5)
Location: HILLSBORO
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down several trees onto Church Drive to the south of Windber.

Thunderstorm Wind in SOMERSET, PENNSYLVANIA
From 21-JUL-20 13:40:00 to 21-JUL-20 13:40:00 (EST-5)
Location: SEANOR
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees onto Camp Drive at Patricia Lane to the southwest of Windber.

Thunderstorm Wind in FULTON, PENNSYLVANIA
From 21-JUL-20 16:20:00 to 21-JUL-20 16:20:00 (EST-5)
Location: MC CONNELLSBURG
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires across Route 522 near Back Run Road, closing the roadway to traffic.

Thunderstorm Wind in FULTON, PENNSYLVANIA
From 21-JUL-20 16:20:00 to 21-JUL-20 16:20:00 (EST-5)
Location: MC CONNELLSBURG
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in McConnellsburg.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 21-JUL-20 16:53:00 to 21-JUL-20 16:53:00 (EST-5)
Location: CHAMBERSBURG
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down wires onto North Franklin Street in Chambersburg.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 21-JUL-20 16:56:00 to 21-JUL-20 16:56:00 (EST-5)
Location: SCOTLAND
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto   a golfer, who was injured, at the Chambersburg Country Club.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 21-JUL-20 17:00:00 to 21-JUL-20 17:00:00 (EST-5)
Location: CHAMBERSBURG
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down dozens of trees and damaged roofs in Chambersburg.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 21-JUL-20 17:00:00 to 21-JUL-20 17:00:00 (EST-5)
Location: SCOTLAND
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a home on State Street in Scotland.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 21-JUL-20 18:00:00 to 21-JUL-20 18:00:00 (EST-5)
Location: STICKS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree at the intersection of Myers Road and Jefferson Road in Codorus Township.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 21-JUL-20 18:02:00 to 21-JUL-20 18:02:00 (EST-5)
Location: SPRING GROVE
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree at the intersection of Ambau Road and Jefferson Road to the south of Spring Grove.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 21-JUL-20 18:08:00 to 21-JUL-20 18:08:00 (EST-5)
Location: WINTERSTOWN
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto Pine Street in Winterstown.

Thunderstorm Wind in SOMERSET, PENNSYLVANIA
From 21-JUL-20 13:48:00 to 21-JUL-20 13:48:00 (EST-5)
Location: ASHTOLA
Magnitude: 83.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm microburst produced straight line wind damage near the town of Ashtola, Pennsylvania, which is about 4 miles SE of Windber. Approximately 75-100 trees on private property just west of the Gallitzin State Forest and east of Crum Rd were downed by strong winds. Most of the damage was confined to an area about 100 yards wide and 500 yards long. Winds were estimated at 85-95 mph. We thank Somerset County and Ogle Township Emergency Management for providing aerial imagery for the damage analysis.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 21-JUL-20 17:00:00 to 21-JUL-20 17:01:00 (EST-5)
Location: WOODSTOCK
Magnitude: 83.00 EG
Property damage: 90.00K
Crop damage: 0.00K
Reported by: Airplane Pilot

A severe thunderstorm microburst produced straight line wind damage in Fayetteville, PA. Approximately 100 trees were downed by strong winds along a path approximately 700 yards long and 100 yards wide. Most of this damage occurred in a forested area alongside the road between 1640 and 1350 Woodstock Rd. In addition to this concentrated swath of damage, peripheral wind damage was scattered between Fayetteville and Chambersburg, including several isolated instances of trees down and damage to roofs of buildings. Wind in this area was estimated at 70-80 mph. A roof was ripped off a warehouse building on the 1600 block of Lincoln Highway. Another roof was partially removed from a building on the 1700 block of Lincoln Highway. A roof was partially removed from a barn and a shed was destroyed on the 2500 block of Grant Point Rd. One person was injured when a tree fell onto a person in Chambersburg. We thank the Civil Air Patrol for providing aerial imagery that was used in this damage analysis.

Thunderstorm Wind in CAMBRIA, PENNSYLVANIA
From 21-JUL-20 12:17:00 to 21-JUL-20 12:17:00 (EST-5)
Location: DYSERTOWN
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires onto Cooney Road to the west of Cresson.

Thunderstorm Wind in BLAIR, PENNSYLVANIA
From 21-JUL-20 12:40:00 to 21-JUL-20 12:40:00 (EST-5)
Location: MC KEE
Magnitude: 43.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A sub-severe thunderstorm producing winds estimated near 50 mph knocked down a tree at the intersection of Johnstown Road and Baird Lane.

Thunderstorm Wind in CAMBRIA, PENNSYLVANIA
From 21-JUL-20 13:35:00 to 21-JUL-20 13:35:00 (EST-5)
Location: SCALP LEVEL
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires on Veil Road in Scalp Level.