An unusually strong for August upper air disturbance helped trigger numerous strong to severe thunderstorms across Eastern Pennsylvania. Severe thunderstorms started developing along the warm front in the morning and continued through the afternoon and into the evening until a cold front moved through the eastern part of the state.

Hail in BERKS, PENNSYLVANIA
From 10-AUG-08 12:05:00 to 10-AUG-08 12:05:00 (EST-5)
Location: FLEETWOOD
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Half dollar to ping pong ball size hail fell in Fleetwood Borough. The hail covered the ground.

Hail in MONTGOMERY, PENNSYLVANIA
From 10-AUG-08 11:35:00 to 10-AUG-08 11:35:00 (EST-5)
Location: EAST GREENVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in East Greenville Borough.

Hail in DELAWARE, PENNSYLVANIA
From 10-AUG-08 11:32:00 to 10-AUG-08 11:32:00 (EST-5)
Location: MARCUS HOOK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell in Marcus Hook (Upper Chichester Township).

Hail in CARBON, PENNSYLVANIA
From 10-AUG-08 12:50:00 to 10-AUG-08 12:50:00 (EST-5)
Location: STEMLERSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Nickel size hail fell in Beltzville State Park.

Hail in BERKS, PENNSYLVANIA
From 10-AUG-08 12:56:00 to 10-AUG-08 12:56:00 (EST-5)
Location: JOANNA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in Caernarvon Township.

Hail in CARBON, PENNSYLVANIA
From 10-AUG-08 13:40:00 to 10-AUG-08 13:40:00 (EST-5)
Location: LAKE HARMONY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail fell in Kidder Township.

Hail in MONROE, PENNSYLVANIA
From 10-AUG-08 13:35:00 to 10-AUG-08 13:35:00 (EST-5)
Location: POCONO PINES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell along the Tobyhanna and Coolbaugh Township line east of Pocono Pines.

Hail in LEHIGH, PENNSYLVANIA
From 10-AUG-08 12:00:00 to 10-AUG-08 12:05:00 (EST-5)
Location: ALLENTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter size hail fell in Allentown and South Allentown.

Hail in CHESTER, PENNSYLVANIA
From 10-AUG-08 09:50:00 to 10-AUG-08 09:50:00 (EST-5)
Location: COATESVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in East Fallowfield Township.

Hail in CHESTER, PENNSYLVANIA
From 10-AUG-08 10:10:00 to 10-AUG-08 10:15:00 (EST-5)
Location: EXTON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A severe thunderstorm dropped large hail from Exton in West Whiteland Township south to West Chester. In West Chester, walnut size to lime size hail was reported.

Hail in CHESTER, PENNSYLVANIA
From 10-AUG-08 16:40:00 to 10-AUG-08 16:45:00 (EST-5)
Location: COCHRANVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny to quarter size hail fell in Oxford Borough and Cochranville in West Fallowfield Township. In Cochranville, the hail accumulated one to two inches deep and caused some minor damage to vegetation as it removed some leaves.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 10-AUG-08 16:45:00 to 10-AUG-08 16:45:00 (EST-5)
Location: EXTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm tore down large tree limbs in Exton (West Whiteland Township).

Lightning in MONTGOMERY, PENNSYLVANIA
From 10-AUG-08 16:50:00 to 10-AUG-08 16:50:00 (EST-5)
Location: FRUITVILLE
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

A lightning strike amd ensuing fire damaged a townhouse on Rosemont Terrace in Upper Hanover Township. No injuries were reported.

Hail in LEHIGH, PENNSYLVANIA
From 10-AUG-08 12:35:00 to 10-AUG-08 12:35:00 (EST-5)
Location: LYON VLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Quarter size hail fell in Weisenberg Township.