A squall line developed over central Pennsylvania during the afternoon of June 29, 2019. This line progressed southeastward across the area, producing wind damage until it exited the Lower Susquehanna Valley by late afternoon. A second line of storms developed across northern Pennsylvania by evening, and produced additional wind damage as it progressed southeastward across the area.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 29-JUN-19 10:42:00 to 29-JUN-19 10:42:00 (EST-5)
Location: WALLACETON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down trees in West Decatur.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 29-JUN-19 11:20:00 to 29-JUN-19 11:20:00 (EST-5)
Location: AXEMANN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A severe thunderstorm producing winds estimated near 60 mph knocked down two trees near Rockview Prison.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 29-JUN-19 11:20:00 to 29-JUN-19 11:20:00 (EST-5)
Location: PLEASANT GAP
Magnitude: 52.00 EG
Property damage: 9.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees and wires northwest of Centre Hall.

Thunderstorm Wind in MIFFLIN, PENNSYLVANIA
From 29-JUN-19 11:45:00 to 29-JUN-19 11:45:00 (EST-5)
Location: LUMBER CITY
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 multiple trees in Reedsville.

Thunderstorm Wind in HUNTINGDON, PENNSYLVANIA
From 29-JUN-19 12:05:00 to 29-JUN-19 12:05:00 (EST-5)
Location: CASSVILLE
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 numerous trees near Cassville.

Hail in LANCASTER, PENNSYLVANIA
From 29-JUN-19 18:55:00 to 29-JUN-19 18:55:00 (EST-5)
Location: EPHRATA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm produced penny-sized hail in Ephrata.

Thunderstorm Wind in JUNIATA, PENNSYLVANIA
From 29-JUN-19 12:22:00 to 29-JUN-19 12:22:00 (EST-5)
Location: EAST WATERFORD
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees and wires in East Waterford.

Thunderstorm Wind in HUNTINGDON, PENNSYLVANIA
From 29-JUN-19 12:25:00 to 29-JUN-19 12:25:00 (EST-5)
Location: BLACKLOG
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 numerous trees in Orbisonia.

Thunderstorm Wind in PERRY, PENNSYLVANIA
From 29-JUN-19 12:35:00 to 29-JUN-19 12:35:00 (EST-5)
Location: NEWPORT
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 multiple trees in Newport.

Thunderstorm Wind in PERRY, PENNSYLVANIA
From 29-JUN-19 12:50:00 to 29-JUN-19 12:50:00 (EST-5)
Location: NEW BLOOMFIELD
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 numerous trees south of New Bloomfield.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 29-JUN-19 13:15:00 to 29-JUN-19 13:15:00 (EST-5)
Location: TOWER CITY
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

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

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 29-JUN-19 13:44:00 to 29-JUN-19 13:44:00 (EST-5)
Location: NEW OXFORD
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 New Oxford.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 29-JUN-19 13:50:00 to 29-JUN-19 13:50:00 (EST-5)
Location: FAIRFIELD
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 on Water Street in Fairfield.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 29-JUN-19 13:55:00 to 29-JUN-19 13:55:00 (EST-5)
Location: MIDWAY
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 trees and wires near South Lebanon.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 29-JUN-19 13:57:00 to 29-JUN-19 13:57:00 (EST-5)
Location: QUENTIN
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 trees and wires near Cornwall.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 29-JUN-19 14:00:00 to 29-JUN-19 14:00:00 (EST-5)
Location: VIRGINIA MILLS
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down several large trees near Fairfield.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 29-JUN-19 14:20:00 to 29-JUN-19 14:20:00 (EST-5)
Location: CLEARVIEW
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 Manheim Township.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 29-JUN-19 14:20:00 to 29-JUN-19 14:20:00 (EST-5)
Location: DENVER
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 East Cocalico Township.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 29-JUN-19 16:10:00 to 29-JUN-19 16:10:00 (EST-5)
Location: FARRANDSVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Glen Union.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 29-JUN-19 16:20:00 to 29-JUN-19 16:20:00 (EST-5)
Location: NEWBERRY
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 numerous trees in Williamsport.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 29-JUN-19 16:35:00 to 29-JUN-19 16:35:00 (EST-5)
Location: LOCKPORT
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees in Lock Haven.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 29-JUN-19 16:40:00 to 29-JUN-19 16:40:00 (EST-5)
Location: MILL HALL
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple power poles near Mill Hall.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 29-JUN-19 16:40:00 to 29-JUN-19 16:40:00 (EST-5)
Location: LOCKPORT
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down two trees onto buildings in Lock Haven.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 29-JUN-19 17:16:00 to 29-JUN-19 17:16:00 (EST-5)
Location: STONINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

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

Thunderstorm Wind in SNYDER, PENNSYLVANIA
From 29-JUN-19 17:25:00 to 29-JUN-19 17:25:00 (EST-5)
Location: SELINSGROVE
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 in Selinsgrove.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 29-JUN-19 17:30:00 to 29-JUN-19 17:30:00 (EST-5)
Location: FISHERS FERRY
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 Lower Augusta Township.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 29-JUN-19 17:50:00 to 29-JUN-19 17:50:00 (EST-5)
Location: DALMATIA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Dalmatia.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 29-JUN-19 17:50:00 to 29-JUN-19 17:50:00 (EST-5)
Location: TREMONT
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 numerous trees near Tremont.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 29-JUN-19 18:05:00 to 29-JUN-19 18:05:00 (EST-5)
Location: BEUCHLER
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 Pine Grove Township.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 29-JUN-19 18:42:00 to 29-JUN-19 18:42:00 (EST-5)
Location: SCHAEFFERSTOWN
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees and powerlines in Heidlelberg Township.

Thunderstorm Wind in HUNTINGDON, PENNSYLVANIA
From 29-JUN-19 12:20:00 to 29-JUN-19 12:20:00 (EST-5)
Location: SHIRLEYSBURG
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

A severe thunderstorm producing winds estimated near 60 mph knocked down more than a dozen trees, as well as multiple camping tents and a large party tent. 35 people were injured, although most were minor bumps and bruises, with 3 people being transported to a local hospital by ambulance.