A line of severe thunderstorms developed ahead of an approaching cold front during the afternoon of May 15, 2018.  This line progresses southeastward across central Pennsylvania, producing widespread wind damage and isolated large hail.

Hail in ADAMS, PENNSYLVANIA
From 15-MAY-18 16:40:00 to 15-MAY-18 16:40:00 (EST-5)
Location: GETTYSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A severe thunderstorm produced quarter-sized hail near Gettysburg.

Hail in CUMBERLAND, PENNSYLVANIA
From 15-MAY-18 15:26:00 to 15-MAY-18 15:26:00 (EST-5)
Location: MECHANICSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail near Mechanicsburg.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 15-MAY-18 11:56:00 to 15-MAY-18 11:56:00 (EST-5)
Location: DENTS RUN
Magnitude: 78.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 90 mph knocked down numerous trees and wires along Huston Hill Road.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 15-MAY-18 13:45:00 to 15-MAY-18 13:45:00 (EST-5)
Location: TURBOTVILLE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Broadcast Media

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

Thunderstorm Wind in MONTOUR, PENNSYLVANIA
From 15-MAY-18 13:55:00 to 15-MAY-18 13:55:00 (EST-5)
Location: DANVILLE
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 80 mph knocked down numerous trees in Danville.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 15-MAY-18 13:55:00 to 15-MAY-18 13:55:00 (EST-5)
Location: SOUTH DANVILLE
Magnitude: 78.00 EG
Property damage: 17.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 90 mph knocked down numerous trees near Riverside.

Thunderstorm Wind in MONTOUR, PENNSYLVANIA
From 15-MAY-18 13:59:00 to 15-MAY-18 13:59:00 (EST-5)
Location: DANVILLE
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 80 mph overturned a tractor trailer on the bridge between Danville and Riverside.

Hail in CAMBRIA, PENNSYLVANIA
From 15-MAY-18 13:05:00 to 15-MAY-18 13:05:00 (EST-5)
Location: PORTAGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail near Portage.

Hail in CAMBRIA, PENNSYLVANIA
From 15-MAY-18 13:20:00 to 15-MAY-18 13:20:00 (EST-5)
Location: BENS CREEK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced half dollar sized south of Lilly.

Hail in ADAMS, PENNSYLVANIA
From 15-MAY-18 16:31:00 to 15-MAY-18 16:31:00 (EST-5)
Location: GETTYSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A severe thunderstorm produced quarter-sized hail near Gettysburg.

Hail in YORK, PENNSYLVANIA
From 15-MAY-18 17:15:00 to 15-MAY-18 17:15:00 (EST-5)
Location: SINSHEIM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail west of Codorus.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 15-MAY-18 11:27:00 to 15-MAY-18 11:27:00 (EST-5)
Location: RIDGWAY
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 wires onto a roadway north of Ridgway.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 15-MAY-18 11:33:00 to 15-MAY-18 11:33:00 (EST-5)
Location: KERSEY
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 trees and wires along Chicken Hill Road.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 15-MAY-18 11:38:00 to 15-MAY-18 11:38:00 (EST-5)
Location: KAULMONT
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree and wires in Saint Marys.

Thunderstorm Wind in CAMERON, PENNSYLVANIA
From 15-MAY-18 11:58:00 to 15-MAY-18 11:58:00 (EST-5)
Location: CAMERON
Magnitude: 83.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 95 mph knocked down numerous trees and wires along Route 120.

Thunderstorm Wind in CAMERON, PENNSYLVANIA
From 15-MAY-18 12:00:00 to 15-MAY-18 12:00:00 (EST-5)
Location: SINNAMAHONING
Magnitude: 61.00 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 trees and wires along Route 120 near Wyside.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 15-MAY-18 12:19:00 to 15-MAY-18 12:19:00 (EST-5)
Location: OSTEND
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down a large tree, blocking Main Street at Spruce Street in Mahaffey.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 15-MAY-18 12:27:00 to 15-MAY-18 12:27:00 (EST-5)
Location: WESTOVER
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires and blocked a roadway west of Westover.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 15-MAY-18 12:42:00 to 15-MAY-18 12:42:00 (EST-5)
Location: OSCEOLA MILLS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees near Osceola Mills.

Thunderstorm Wind in TIOGA, PENNSYLVANIA
From 15-MAY-18 12:42:00 to 15-MAY-18 12:42:00 (EST-5)
Location: ANSONIA
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Utility Company

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

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 15-MAY-18 12:52:00 to 15-MAY-18 12:52:00 (EST-5)
Location: SOUTH PHILIPSBURG
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 trees and wires along Black Moshannon Road.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 15-MAY-18 12:56:00 to 15-MAY-18 12:56:00 (EST-5)
Location: STEAM VLY
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires onto a home.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 15-MAY-18 13:00:00 to 15-MAY-18 13:00:00 (EST-5)
Location: BUFFALO RUN
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto Sellers Lane.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 15-MAY-18 13:08:00 to 15-MAY-18 13:08:00 (EST-5)
Location: COLEVILLE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires along Seibert Road near Bellefonte.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 15-MAY-18 13:10:00 to 15-MAY-18 13:10:00 (EST-5)
Location: AXEMANN
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto Melanie Lane in Pleasant Gap.

Thunderstorm Wind in SULLIVAN, PENNSYLVANIA
From 15-MAY-18 13:25:00 to 15-MAY-18 13:25:00 (EST-5)
Location: MILLVIEW
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires onto Route 87 near Forksville.

Thunderstorm Wind in SULLIVAN, PENNSYLVANIA
From 15-MAY-18 13:35:00 to 15-MAY-18 13:35:00 (EST-5)
Location: DUSHORE
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 in Dushore.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 15-MAY-18 13:40:00 to 15-MAY-18 13:40:00 (EST-5)
Location: OPP
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees, including one onto a house east of Muncy.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 15-MAY-18 13:40:00 to 15-MAY-18 13:40:00 (EST-5)
Location: HUGHESVILLE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

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

Thunderstorm Wind in UNION, PENNSYLVANIA
From 15-MAY-18 13:41:00 to 15-MAY-18 13:41:00 (EST-5)
Location: MIFFLINBURG
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph blew a roof off of a building in Mifflinburg.

Thunderstorm Wind in MIFFLIN, PENNSYLVANIA
From 15-MAY-18 13:51:00 to 15-MAY-18 13:51:00 (EST-5)
Location: NEWTON HAMILTON
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 north of Newton-Hamilton.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:00:00 to 15-MAY-18 14:00:00 (EST-5)
Location: BLOOMSBURG
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

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

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:08:00 to 15-MAY-18 14:08:00 (EST-5)
Location: BERWICK
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 60 mph blew a roof off of a home in Berwick.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:09:00 to 15-MAY-18 14:09:00 (EST-5)
Location: ALMEDIA
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 toppled the Central Columbia High School concessions building.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 15-MAY-18 14:30:00 to 15-MAY-18 14:30:00 (EST-5)
Location: MARSHALLTON
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Public

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

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 15-MAY-18 13:11:00 to 15-MAY-18 13:11:00 (EST-5)
Location: (UNV)UNIV PARK STATE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A severe thunderstorm produced a wind gust of 58 mph at the KUNV ASOS at University Park Airport.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:09:00 to 15-MAY-18 14:09:00 (EST-5)
Location: ALMEDIA
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust of 58 mph at Central Columbia High School.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 15-MAY-18 14:41:00 to 15-MAY-18 14:41:00 (EST-5)
Location: RINGTOWN
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 in Ringtown.

Thunderstorm Wind in PERRY, PENNSYLVANIA
From 15-MAY-18 14:50:00 to 15-MAY-18 14:50:00 (EST-5)
Location: ALINDA
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 onto Pike Road at Mill Road.

Thunderstorm Wind in PERRY, PENNSYLVANIA
From 15-MAY-18 14:52:00 to 15-MAY-18 14:52:00 (EST-5)
Location: SHERMANS DALE
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 onto Rambo Hill Road at Spring Road.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 15-MAY-18 15:05:00 to 15-MAY-18 15:05:00 (EST-5)
Location: WEST CRESSONA
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 trees and wires in Schuylkill Haven.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 15-MAY-18 15:17:00 to 15-MAY-18 15:17:00 (EST-5)
Location: BONNY BROOK
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 75 mph knocked down numerous trees and wires down along the Route 34 corridor. Some trees fell onto homes, and there was roof damage to some barns in the area.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 15-MAY-18 15:17:00 to 15-MAY-18 15:17:00 (EST-5)
Location: ROCKVILLE
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 at North Front Street and Miller Lane.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 15-MAY-18 15:20:00 to 15-MAY-18 15:20:00 (EST-5)
Location: LUCKNOW
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto homes on Green Street.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 15-MAY-18 15:38:00 to 15-MAY-18 15:38:00 (EST-5)
Location: PINE GLEN
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 trees and wires along Pine Grove Road.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 15-MAY-18 16:04:00 to 15-MAY-18 16:04:00 (EST-5)
Location: MASTERSONVILLE
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 across Mastersonville Road.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 15-MAY-18 16:12:00 to 15-MAY-18 16:12:00 (EST-5)
Location: MANHEIM
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires onto South Charlotte Street in Manheim.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 15-MAY-18 16:17:00 to 15-MAY-18 16:17:00 (EST-5)
Location: EAST BERLIN
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 trees and wires along Park Road in East Berlin.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 15-MAY-18 16:26:00 to 15-MAY-18 16:26:00 (EST-5)
Location: CLEARVIEW
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 across Valleybrook Drive.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 15-MAY-18 16:28:00 to 15-MAY-18 16:28:00 (EST-5)
Location: WRIGHTSVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees along Long Level Road south of Wrightsville.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 15-MAY-18 16:31:00 to 15-MAY-18 16:31:00 (EST-5)
Location: AKRON
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires across Route 272 near Akron, briefly closing the roadway.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 15-MAY-18 16:33:00 to 15-MAY-18 16:33:00 (EST-5)
Location: EPHRATA
Magnitude: 52.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A severe thunderstorm producing winds estimated near 60 mph knocked down a large tree onto a home in Ephrata, causing significant damage to the home.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 15-MAY-18 16:55:00 to 15-MAY-18 16:55:00 (EST-5)
Location: HANOVER
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 across Philadelphia Street in Hanover.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 15-MAY-18 15:22:00 to 15-MAY-18 15:22:00 (EST-5)
Location: GRANTVILLE
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust of 68 mph in Grantville.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 15-MAY-18 13:57:00 to 15-MAY-18 13:57:00 (EST-5)
Location: SOUTH DANVILLE
Magnitude: 78.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 90 mph knocked down a large tree onto Sunbury Road near Avenue E.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:00:00 to 15-MAY-18 14:00:00 (EST-5)
Location: FORKS
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 85 mph knocked down numerous trees near Pealertown.

Thunderstorm Wind in MONTOUR, PENNSYLVANIA
From 15-MAY-18 14:00:00 to 15-MAY-18 14:00:00 (EST-5)
Location: DANVILLE
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 90 mph knocked down and snapped numerous trees along Clinic Road.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 15-MAY-18 14:04:00 to 15-MAY-18 14:04:00 (EST-5)
Location: CREASY
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm producing winds estimated near 85 mph knocked down numerous trees along Chapins Road near Sycamore Lane.