A cold front encountered a very warm, humid and unstable airmass during the mid to late afternoon and early evening hours...igniting numerous strong to severe thunderstorms across Central Pennsylvania.  Severe thunderstorms produced widespread wind damage and as well as a few reports of hail.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 25-AUG-07 16:22:00 to 25-AUG-07 16:22:00 (EST-5)
Location: BORDNERSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in Union Township.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 25-AUG-07 18:10:00 to 25-AUG-07 18:10:00 (EST-5)
Location: CARLISLE
Magnitude: 50.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down in Carlisle. 5 people were injured at a Corvette parade when a tree fell onto one of the cars.

Hail in ADAMS, PENNSYLVANIA
From 25-AUG-07 16:55:00 to 25-AUG-07 16:55:00 (EST-5)
Location: FAIRFIELD ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel sized hail in Carroll Valley.

Hail in CUMBERLAND, PENNSYLVANIA
From 25-AUG-07 18:14:00 to 25-AUG-07 18:14:00 (EST-5)
Location: CARLISLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported penny sized hail near Carlisle.

Hail in CUMBERLAND, PENNSYLVANIA
From 25-AUG-07 18:38:00 to 25-AUG-07 18:38:00 (EST-5)
Location: SHIREMANSTOWN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny sized hail near Shiremanstown.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 25-AUG-07 15:55:00 to 25-AUG-07 15:55:00 (EST-5)
Location: MANDATA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down near Dalmatia or approximately 3 miles south of Herndon.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 25-AUG-07 16:00:00 to 25-AUG-07 16:00:00 (EST-5)
Location: YOUNGSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down in Youngsville.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 25-AUG-07 16:05:00 to 25-AUG-07 16:05:00 (EST-5)
Location: BLOOMSBURG MUNI ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down on wires in Scott Township.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 25-AUG-07 16:05:00 to 25-AUG-07 16:05:00 (EST-5)
Location: BERRYSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Dauphin county officials reported large limbs down on power lines at the intersection of Route 25 and North Crossroads.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 25-AUG-07 19:08:00 to 25-AUG-07 19:08:00 (EST-5)
Location: REISTVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down along Route 501 between Myerstown and Schaefferstown.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 25-AUG-07 19:40:00 to 25-AUG-07 19:40:00 (EST-5)
Location: COLONIAL PARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in Lower Paxton, Susquehanna, South Hanover, West Hanover and East Hanover Townships.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 25-AUG-07 19:45:00 to 25-AUG-07 19:45:00 (EST-5)
Location: GLENWORTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in Pottsville.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 25-AUG-07 16:18:00 to 25-AUG-07 16:18:00 (EST-5)
Location: ROUGH AND READY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and wires down near Klingerstown or approximately 4 miles northwest of Valley View.

Hail in WARREN, PENNSYLVANIA
From 25-AUG-07 15:55:00 to 25-AUG-07 15:55:00 (EST-5)
Location: YOUNGSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail near Youngsville.

Hail in COLUMBIA, PENNSYLVANIA
From 25-AUG-07 16:00:00 to 25-AUG-07 16:00:00 (EST-5)
Location: BLOOMSBURG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported penny sized hail in Bloomsburg.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 25-AUG-07 17:00:00 to 25-AUG-07 17:00:00 (EST-5)
Location: FAIRFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported trees down near Fairfield.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 25-AUG-07 17:00:00 to 25-AUG-07 17:00:00 (EST-5)
Location: GLENWORTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in vicinity of Pottsville.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 25-AUG-07 17:15:00 to 25-AUG-07 17:15:00 (EST-5)
Location: TAMAQUA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in vicinity of south Tamaqua.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 25-AUG-07 17:35:00 to 25-AUG-07 17:35:00 (EST-5)
Location: RIVERSIDE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Local newspaper reported trees down between Danville and Elysburg.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 25-AUG-07 18:05:00 to 25-AUG-07 18:05:00 (EST-5)
Location: DOVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down near Dover.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 25-AUG-07 18:53:00 to 25-AUG-07 18:53:00 (EST-5)
Location: BOSTON RUN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down in Gilberton.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 25-AUG-07 18:30:00 to 25-AUG-07 18:30:00 (EST-5)
Location: ENOLA
Magnitude: 50.00 EG
Reported by: Public

Public reported at least dozen trees snapped off or uprooted just north of Enola and Summerdale.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 25-AUG-07 18:35:00 to 25-AUG-07 18:35:00 (EST-5)
Location: OLD LINE
Magnitude: 61.00 EG
Property damage: 75.00K
Reported by: Emergency Manager

Lancaster county emergency management reported trees and wires down across portions of Rapho and East Donegal Townships.
Multiple downbursts produced straight line wind damage (wind gusts of 60-80mph) to farm buildings and at least two homes just east of Route 772 in Rapho Township.
Two silos on Longenecker and Pinkerton roads were damaged. The domed roof of a silo on Pinkerton Road was ripped off during the storm, while a silo on Longenecker Road lost 20 to 30 feet from its upper half. Several outbuildings were also damaged along with corn fields.
Also on Pinkerton Road, a tree fell onto the roof of a home, causing exterior and interior damage.
No injuries with the storms. More than 7,000 power outages (largely due to lightning strikes) were reported.

Thunderstorm Wind in MCKEAN, PENNSYLVANIA
From 25-AUG-07 16:41:00 to 25-AUG-07 16:41:00 (EST-5)
Location: BRADFORD
Magnitude: 50.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported numerous trees and power lines down in Bradford. McKean county emergency management reported the storm packed winds upwards of 50 to 70 mph...toppling more than 100 trees and damaging close to 60 homes. Two trees fell onto parked vehicles. Pennsylvania Electric representatives said that there were 5,000 residents without power during the peak of the storm with nearly 200 customers without power for over 24 hours. A large tank inside the American Refining Group's Refinery was buckled due to strong winds and a roof was torn off a boiler house.
County officials said that no major injuries occurred as a result of the storms.

Thunderstorm Wind in MONTOUR, PENNSYLVANIA
From 25-AUG-07 17:35:00 to 25-AUG-07 17:35:00 (EST-5)
Location: PAXINOS
Magnitude: 52.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A mobile home trailer on an elevated platform at the top of hill in a field was demolished by a 60 mph wind gust. Debris from trailer was scattered across the field and blocked by nearby rows of corn. This damage occurred about 2 miles north of Elysburg.

Less than a half mile to the southwest at the intersection of Rte 54 and SR2109 near the Montour/Northumberland county line, a large branch was blown off a tree falling directly on 2 parked vehicles underneath it.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 25-AUG-07 17:45:00 to 25-AUG-07 17:45:00 (EST-5)
Location: CATAWISSA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported trees down in Catawissa. High winds also destroyed a trailer on High Street.