A broken line of showers and thunderstorms developed in a moderate CAPE and weak to moderate shear environment south of a weak frontal boundary that was draped over northern Pennsylvania during the evening of September 13, 2021. One particular cell along this line intensified over Lycoming County and produced sporadic wind damage as it progressed southeastward across eastern Lycoming, Columbia and eastern Schuylkill counties.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:45:00 to 13-SEP-21 18:45:00 (EST-5)
Location: MORELAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees in far southeastern Lycoming County.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 13-SEP-21 19:14:00 to 13-SEP-21 19:14:00 (EST-5)
Location: HETLERVILLE
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 80 mph uprooted numerous trees near Mountain Grove.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 13-SEP-21 19:30:00 to 13-SEP-21 19:30:00 (EST-5)
Location: QUAKAKE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 70 mph knocked down numerous trees and produced widespread crop damage northwest of Hometown.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 13-SEP-21 19:20:00 to 13-SEP-21 19:20:00 (EST-5)
Location: ONEIDA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down two large trees south of Nuremburg.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:10:00 to 13-SEP-21 18:10:00 (EST-5)
Location: LOYALSOCKVILLE
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 trees and wires along Wallis Run Road.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 13-SEP-21 18:58:00 to 13-SEP-21 18:58:00 (EST-5)
Location: PINE SUMMIT
Magnitude: 52.00 EG
Property damage: 14.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down several trees and damaged a roof in far northwestern Columbia County.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 13-SEP-21 19:06:00 to 13-SEP-21 19:06:00 (EST-5)
Location: MARTZVILLE
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a home in Berwick.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 13-SEP-21 19:02:00 to 13-SEP-21 19:02:00 (EST-5)
Location: ORANGEVILLE
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees, including some on homes, in Orangeville.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 13-SEP-21 19:06:00 to 13-SEP-21 19:06:00 (EST-5)
Location: CREASY
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Utility Company

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires in the Mifflinville area.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 13-SEP-21 19:30:00 to 13-SEP-21 19:30:00 (EST-5)
Location: GRIER CITY
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced a 68 mph wind gust measured by a PennDOT station at the Delano exit on I-81.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:32:00 to 13-SEP-21 18:32:00 (EST-5)
Location: PENNSDALE
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 trees and wires northwest of Hughsville.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:28:00 to 13-SEP-21 18:28:00 (EST-5)
Location: FAIRFIELD CENTER
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 northeast of Montoursville.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:34:00 to 13-SEP-21 18:34:00 (EST-5)
Location: PICTURE ROCKS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees near Picture Rocks.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 13-SEP-21 18:38:00 to 13-SEP-21 18:38:00 (EST-5)
Location: HUGHESVILLE
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 onto wires east of Hughsville.