A slow moving low pressure system over the mid-Atlantic region associated with the remnants of TS Karen brought excessive rainfall (6-10+ inches over two days) and significant flooding to the Lower Susquehanna Valley (LSV). The impacts included widespread significant flooding, numerous closed roads/underpasses, multiple water rescues, evacuations and two residential structure collapses. Fortunately, the area had been abnormally dry prior to the record-breaking rainfall.
Moderate river flooding was observed on the Yellow Breeches Creek in Camp Hill. Minor river flooding occurred on the Conestoga at Lancaster, Swatara at Hershey, and on the Conodoguinet Creek at Hogestown. Some of the highest storm total rainfall amounts in excess of 10 inches were in the vicinity of Harrisburg. Daily precipitation records were set at Harrisburg International Airport (MDT) on October 10/11. The 2-day excessive rainfall event made October 2013 the wettest October on record at MDT.

Flood in ADAMS, PENNSYLVANIA
From 10-OCT-13 21:00:00 to 12-OCT-13 09:00:00 (EST-5)
Location: TRUST
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall of 5-10 inches over a 2-day period resulted in widespread significant flooding. Numerous roads were closed especially over the eastern and northern portions of the county. Two residential structures collapsed in Oxford and Tyrone Townships.

Flood in FRANKLIN, PENNSYLVANIA
From 10-OCT-13 22:00:00 to 12-OCT-13 08:15:00 (EST-5)
Location: YEAKLE MILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall between 5-10 inches produced widespread significant flooding. The flooding closed numerous roads across the county.

Flood in YORK, PENNSYLVANIA
From 10-OCT-13 21:00:00 to 12-OCT-13 09:00:00 (EST-5)
Location: CLEAR SPG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall of 5-10 inches over a 2-day period resulted in widespread significant flooding. Small stream flooding was reported in Spring Grove, Lewisberry (Fishing Creek), and Jefferson (Codorus Creek). Road closures included but where not limited to North Susquehanna Trail between Gwen Drive and Church Road in Manchester Township; Baker Road between Hadley Drive and RT 234 in Dover Township; intersection of Roosevelt Ave. and RT 30; RT 616 between Woodberry and College Ave; intersection of Indian Rock Dam Road and Hokes Mill Road in West Manchester Township; Freysville Road, Hillview Road and Yorkana Road in Hellam Township; Old Orchard Road and Stonewood Road in Springettsbury Township; East Berlin Road at W. Canal Road in Paradise Township; S. Salem Road near Honey Run Golf Course in Dover Township. A precautionary evacuation took place at the Princess Mobile Home Park in Hellam Township due to Kruetz Creek being out of its banks.

Flood in LEBANON, PENNSYLVANIA
From 10-OCT-13 22:00:00 to 12-OCT-13 08:15:00 (EST-5)
Location: INDIANTOWN GAP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall between 5-10 inches produced widespread significant flooding. Several secondary roads were closed due to the flooding. A small stream along SR 419 closed Zellers Road near Newmanstown. There was one water rescue for a stranded motorist in South Londonderry Township on SR 241.

Flood in PERRY, PENNSYLVANIA
From 10-OCT-13 22:00:00 to 12-OCT-13 08:15:00 (EST-5)
Location: NEW GERMANTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall between 5-10 inches produced widespread significant flooding. A rock slide closed US 322 WB between the Millerstown and Newport exits in Howe Township.

Flood in LANCASTER, PENNSYLVANIA
From 10-OCT-13 21:00:00 to 12-OCT-13 09:00:00 (EST-5)
Location: CHURCHTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall of 5-10 inches over a 2-day period resulted in widespread significant flooding. Road closures included but were not limited to Franklin Drive/Blue Lane; Landis Mill bridge at Blue Jay Drive; North Plum and East Liberty Street underpass; Fruitville Pike near RT 72 in Penn Township and numerous other rural roads across the county.
The Chickies Creek near Manheim came out of its banks and flooded nearby roads. Minor river flooding occurred on the Conestoga at Lancaster with a crest of 11.20 feet.

Flood in CUMBERLAND, PENNSYLVANIA
From 10-OCT-13 22:00:00 to 12-OCT-13 08:15:00 (EST-5)
Location: NEWBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall between 5-10 inches produced widespread significant flooding. Road closures included but were not limited to Petersburg Road between RT 174 and Lerew Road near Boiling Springs, and Ladnor Lane near Mount Holly Springs. Moderate river flooding occurred on the Yellow Breeches Creek in Camp Hill with a crest of 11.40 feet. Minor river flooding was observed on the Conodoguinet Creek at Hogestown with a crest of 8.99 feet.

Flood in DAUPHIN, PENNSYLVANIA
From 10-OCT-13 22:00:00 to 12-OCT-13 08:15:00 (EST-5)
Location: GRATZ ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Excessive rainfall between 5-10 inches produced widespread significant flooding. Road closures included but were not limited to N. Cameron Street near US 22; Highway 230 at Sycamore Street; Wood Road; Bullfrong/Limerick Ramps to 322/422; 800 block of Clifton Heights; Cameron Street between Elmerton and Market Street and Eby Road between Dauphin and Lebanon City (Campbelltown). Spring Creek came out of its banks and caused flooding and road closures in Swatara Township and Paxtang Borough. Portions of the Farm Show Complex parking lots were under water. Flooding and stranded vehicles were reported along McClay Street. Derry Township experienced flooding including the Hershey/Hershey Park area. Minor river flooding occurred on the Swatara Creek at Hershey with a crest of 7.54 feet.