An unseasonably warm air mass just south of a slowly moving cold front combined to produce strong to severe thunderstorms mainly across the Poconos and Lehigh Valley during the late afternoon and early evening of the 10th. The severe thunderstorms that did occur produced both large hail and damaging winds. About 400 Pennsylvania Power and Light customers lost power.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 10-APR-13 18:45:00 to 10-APR-13 18:45:00 (EST-5)
Location: NEW HANOVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm knocked down a few trees and wires in New Hanover Township.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 10-APR-13 17:28:00 to 10-APR-13 17:28:00 (EST-5)
Location: NEWHARD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm knocked down a few trees and power lines in Washington Township in and around Old Post Road.  One man's head was injured when part of a tree fell on him. Chainsaws were needed to remove the downed trees from the roadway.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 10-APR-13 16:58:00 to 10-APR-13 16:58:00 (EST-5)
Location: EFFORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A severe thunderstorm knocked down a couple of trees onto wires on Gilbert Road in Chestnuthill Township.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 10-APR-13 16:50:00 to 10-APR-13 16:50:00 (EST-5)
Location: EAST STROUDSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A severe thunderstorm knocked down a couple of trees in East Stroudsburg. One fell across Burson Street.

Hail in MONROE, PENNSYLVANIA
From 10-APR-13 16:25:00 to 10-APR-13 16:25:00 (EST-5)
Location: CANADENSIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped quarter size hail in Canadensis (Barrett Township).

Hail in MONROE, PENNSYLVANIA
From 10-APR-13 17:00:00 to 10-APR-13 17:00:00 (EST-5)
Location: EAST STROUDSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm also dropped quarter size hail in East Stroudsburg.

Hail in LEHIGH, PENNSYLVANIA
From 10-APR-13 17:50:00 to 10-APR-13 17:50:00 (EST-5)
Location: ALLENTOWN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm dropped penny size hail in Allentown.

Hail in NORTHAMPTON, PENNSYLVANIA
From 10-APR-13 17:55:00 to 10-APR-13 17:55:00 (EST-5)
Location: BETHLEHEM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm dropped nickel size hail in Bethlehem.

Hail in NORTHAMPTON, PENNSYLVANIA
From 10-APR-13 17:55:00 to 10-APR-13 17:55:00 (EST-5)
Location: FREEMANSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A severe thunderstorm dropped penny to quarter size hail in Freemansburg.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 10-APR-13 17:50:00 to 10-APR-13 17:50:00 (EST-5)
Location: WEST CATASAUQUA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm knocked down a few trees between Allentown and Bethlehem.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 10-APR-13 19:10:00 to 10-APR-13 19:10:00 (EST-5)
Location: FLOURTOWN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm knocked down a few trees and wires in Whitemarsh Township.