Tropical Storm Isabel produced strong power outage producing winds, moderate tidal flooding along the Delaware River and stream flooding in Chester County. Isabel made landfall as a hurricane near Drum Inlet, North Carolina around 100 p.m. EDT on the 18th and weakened as it tracked farther inland. At one time in its life cycle, it was a powerful Category 5 hurricane when it was north of the Leewood Islands. Winds gusted up to 60 mph in Eastern Pennsylvania and downed countless numbers of trees, tree limbs and power lines. It was the worst outage on record for PECO Energy in southeastern Pennsylvania. About 572,425 of its customers lost power. This exceeded the outages that occurred during the ice storm of January 1994. PECO Energy estimated it would cost at least $20 million dollars for it to install about 81 miles of new cable and install about 7,600 new fuses and circuit breakers. The large number of outages was not confined to the southeast part of the state. In Berks County, about 45,000 homes and business lost power. About sixty percent of Metropolitan Edison's 500,000 customers (including Berks County and the Lehigh Valley) lost power from 11,000 separate trouble spots. Pennsylvania Power and Light reported about 500,000 of its customers (including the Lehigh Valley and the Poconos) lost power. This broke their previous record during Tropical Storm Floyd by 150,000. Isabel's track took into western Pennsylvania and was able to funnel water into Delaware River and Bay. Moderate tidal flooding occurred. In Philadelphia, the tide crested at 9.47 feet above mean lower low water. The storm surge was 5.43 feet. The rain was not heavy and the only reported gaged stream flooding was in Chester County.  The heaviest rain with tropical systems often falls west of its storm track, thus the region was spared from the heavier rain.  Peak wind gusts included 60 mph in Forks Township (Northampton County), 49 at the Philadelphia International Airport and the Reading Regional Airport (Berks County), 47 mph at the Lehigh Valley International Airport and 46 mph at the Pocono Mountains Regional Airport (Monroe County). The Valley Creek at Valley Forge (Chester County) was above its 7 foot flood stage from 220 a.m. through 251 a.m. EDT on the 19th and crested at 7.26 feet at 230 a.m. EDT. Storm totals included 1.50 inches in Valley Forge (Chester County), 1.35 inches in Glenmoore (Chester County), 1.16 inches at the Lehigh Valley International Airport, 1.14 inches at the Philadelphia International Airport and 0.81 inches in Mount Pocono (Monroe County).

High Wind in MONROE, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 1M
Reported by: TRAINED SPOTTER

High Wind in MONTGOMERY, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 7M
Reported by: TRAINED SPOTTER

High Wind in NORTHAMPTON, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 52 MG
Property damage: 1.15M
Reported by: TRAINED SPOTTER

High Wind in PHILADELPHIA, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 3.02M
Reported by: TRAINED SPOTTER

Flash Flood in CHESTER, PENNSYLVANIA
From 19-SEP-03 01:20:00 to 19-SEP-03 01:51:00 (EST)
Location: VALLEY FORGE
Reported by: AWOS,ASOS,MESONET,ETC

High Wind in BERKS, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 1.1M
Reported by: TRAINED SPOTTER

High Wind in BUCKS, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 5.01M
Reported by: TRAINED SPOTTER

High Wind in CARBON, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 1M
Reported by: TRAINED SPOTTER

High Wind in CHESTER, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 6.68M
Reported by: TRAINED SPOTTER

High Wind in DELAWARE, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 5.24M
Reported by: TRAINED SPOTTER

Storm Surge/Tide in BUCKS, PENNSYLVANIA
From 19-SEP-03 03:00:00 to 19-SEP-03 18:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Storm Surge/Tide in DELAWARE, PENNSYLVANIA
From 19-SEP-03 03:00:00 to 19-SEP-03 18:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Storm Surge/Tide in PHILADELPHIA, PENNSYLVANIA
From 19-SEP-03 03:00:00 to 19-SEP-03 18:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

High Wind in LEHIGH, PENNSYLVANIA
From 18-SEP-03 16:00:00 to 19-SEP-03 05:00:00 (EST)
Magnitude: 50 EG
Property damage: 1.02M
Reported by: TRAINED SPOTTER