A strong cold front helped trigger a series of thunderstorms across Eastern Pennsylvania on the 12th.  A line of strong to severe thunderstorms that moved through the area during the late afternoon and early evening on the 12th caused the majority of the wind and lightning damage. About 3,000 Pennsylvania Power and Light customers lost power in the Lehigh Valley.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 12-SEP-13 16:32:00 to 12-SEP-13 16:32:00 (EST-5)
Location: OLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm knocked down a few trees in Oley Township.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 12-SEP-13 16:36:00 to 12-SEP-13 16:36:00 (EST-5)
Location: NEW JERUSALEM
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm knocked down numerous trees and wires in Rockland Township. One downed wire started an appliance fire in a home in the township.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 12-SEP-13 16:43:00 to 12-SEP-13 16:43:00 (EST-5)
Location: COPLAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm knocked down several trees and caused low hanging wires in Whitehall Township. Pennsylvania Power and Light reported about 500 of its customers lost power in Lehigh County.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 12-SEP-13 16:49:00 to 12-SEP-13 16:49:00 (EST-5)
Location: COPELLA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm generated a wind gust of 61 mph in Bushkill Township and tore down utility poles as well as a large pine tree. The same line of thunderstorms produced a wind gust to 47 mph in Forks Township. Pennsylvania Power and Light reported about 3,500 of its customers lost power in Northampton County.

Lightning in NORTHAMPTON, PENNSYLVANIA
From 12-SEP-13 16:45:00 to 12-SEP-13 16:45:00 (EST-5)
Location: INDIANLAND
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

A lightning strike started a small barn fire in Northampton.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 12-SEP-13 16:23:00 to 12-SEP-13 16:23:00 (EST-5)
Location: (RDG)SPAATZ FLD READ
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm knocked down a couple of trees in Muhlenberg Township. One downed tree fell onto and damaged a home. An elderly woman was injured and trapped within her house. She had to be extricated and was transported to Reading Hospital. A wind gust to 46 mph occurred at the Reading Regional Airport.

Lightning in NORTHAMPTON, PENNSYLVANIA
From 12-SEP-13 08:05:00 to 12-SEP-13 08:05:00 (EST-5)
Location: ULHERS
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

A lightning strike damaged a tree in a housing development in Fork Township.

Lightning in BERKS, PENNSYLVANIA
From 12-SEP-13 16:20:00 to 12-SEP-13 16:20:00 (EST-5)
Location: (RDG)SPAATZ FLD READ
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Lightning struck a home in Bern Township and ignited a fire. No serious injuries were reported.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 12-SEP-13 15:54:00 to 12-SEP-13 15:54:00 (EST-5)
Location: REHRERSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm knocked down a couple of trees in Tulpehocken Township.