A mid-level shortwave trough crossed the Mid-Atlantic region on June 14, 2021, generating a line of storms that developed over northwestern Pennsylvania by late morning and progressed east-southeastward through the afternoon hours. Sporadic wind damage was observed with this line, with most of this occurring within a single, long-lived bowing segment that progressed from Elk County east-southeastward along the I-80 corridor to Columbia County.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 14-JUN-21 11:50:00 to 14-JUN-21 11:50:00 (EST-5)
Location: KAULMONT
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 trees and wires near Saint Marys.

Thunderstorm Wind in CAMERON, PENNSYLVANIA
From 14-JUN-21 12:28:00 to 14-JUN-21 12:28:00 (EST-5)
Location: DRIFTWOOD
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Utility Company

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires in the vicinity of Driftwood.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 14-JUN-21 13:00:00 to 14-JUN-21 13:00:00 (EST-5)
Location: RENOVO
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree across Ridge Road in Noyes Township.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 14-JUN-21 13:17:00 to 14-JUN-21 13:17:00 (EST-5)
Location: FARRANDSVILLE
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 in the vicinity of Route 120.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 14-JUN-21 13:36:00 to 14-JUN-21 13:36:00 (EST-5)
Location: AVIS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree across Pine-Loganton Road in Wayne Township.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 14-JUN-21 13:35:00 to 14-JUN-21 13:35:00 (EST-5)
Location: CHARLTON
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down trees in several locations between Lock Haven and Avis.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 14-JUN-21 13:53:00 to 14-JUN-21 13:53:00 (EST-5)
Location: COLLOMSVILLE
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down sporadic trees across Nippenose Valley.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 14-JUN-21 14:58:00 to 14-JUN-21 14:58:00 (EST-5)
Location: FOWLERSVILLE
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down trees, some onto wires, in the vicinity of Route 93 in North Centre Township.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 14-JUN-21 14:21:00 to 14-JUN-21 14:21:00 (EST-5)
Location: SCHUYLER
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Utility Company

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires east of Turbotville.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 14-JUN-21 15:21:00 to 14-JUN-21 15:21:00 (EST-5)
Location: SHEPPTON
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Utility Company

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires north of Sheppton.