The remnants of Tropical Storm Lee moved northward from the southern Appalachians on the 6th to the middle Atlantic states on the 7th before stalling on the 8th. The moisture from Lee interacted with a frontal system to the west across the eastern Ohio Valley and eastern Great Lakes. In addition, moisture was drawn into New York and Pennsylvania from Hurricane Katia which was moving northward off the east coast in tandem with the remnants of Lee. This complicated scenario led to an extreme amount of rain for central New York and northeast Pennsylvania, most of which fell over a 48 hour period from the 6th to the 8th. Rainfall of 6 to 12 inches occurred over most of the upper Susquehanna river basin in New York and northeast Pennsylvania. The heavy rain caused massive, record breaking flooding on small streams, creeks and the Susquehanna River and its larger tributaries.
The main branch of the Susquehanna River in New York from Binghamton to Vestal, Owego and Waverly crested from 1 to 4 feet higher than the previous record crests set in June 2006.  In Pennsylvania, record crests occurred along the Susquehanna River at Meshoppen and Wilkes Barre which exceeded the long-standing record crests by around 1 foot associated with Hurricane Agnes in 1972.
Damages in the upper Susquehanna River Basin in New York and Pennsylvania are close to 1 billion dollars. Unfortunately, the flooding claimed 1 life and injured 1 person in central New York and northeast Pennsylvania.

Flood in CHENANGO, NEW YORK
From 07-SEP-11 15:35:00 to 10-SEP-11 07:30:00 (EST-5)
Location: GREENE
Flood cause: Heavy Rain / Tropical System
Property damage: 500.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A moderate to major flood occurred on the Chenango river at Greene, NY. The river crested at 21.09 feet at 10:15 AM on September 8, 2011. There was extensive flooding in the town and village of Greene, and surrounding areas.

Flood in TIOGA, NEW YORK
From 07-SEP-11 12:26:00 to 12-SEP-11 10:30:00 (EST-5)
Location: LITCHFIELD
Flood cause: Heavy Rain / Tropical System
Property damage: 16.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Record flooding occurred along the Susquehanna River near Waverly, NY between September 7th and September 12th, 2011. The river crested at 26.67 feet at 4:15 PM on September 8th as determined by a USGS high water mark survey. This surpassed the previous record of 22.52 feet set during the June 2006 flood.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 11:30:00 to 08-SEP-11 11:00:00 (EST-5)
Location: ENDICOTT
Flood cause: Heavy Rain / Tropical System
Property damage: 50.00M
Crop damage: 0.00K
Reported by: NWS Employee

Catastrophic flash flooding occurred along the Nanticoke Creek in West Corners. Numerous roads, homes and bridges were severely damaged.

Flood in CHENANGO, NEW YORK
From 07-SEP-11 17:16:00 to 10-SEP-11 06:00:00 (EST-5)
Location: ROCKDALE
Flood cause: Heavy Rain / Tropical System
Property damage: 250.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A record breaking flood occurred on the Unadilla River near Rockdale on September 8, 2011. The river crested at 14.22 feet at 10:45 AM. Widespread flooding occurred all along the reach of the river. This surpassed the previous record of 13.96 feet set during the June 2006 flood.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 15:00:00 to 08-SEP-11 02:00:00 (EST-5)
Location: PORT CRANE
Flood cause: Heavy Rain
Property damage: 0.50M
Crop damage: 0.00K
Reported by: Public

I-88 east between exit 2 and exit 3 was closed due to a landslide with trees involved.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 12:05:00 to 08-SEP-11 11:00:00 (EST-5)
Location: WEST NEWARK
Flood cause: Heavy Rain / Tropical System
Property damage: 15.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Catastrophic flash flooding of roads, bridges and homes occurred in the Newark Valley area. Numerous roads, homes and bridges were severely damaged.

Flood in TIOGA, NEW YORK
From 07-SEP-11 16:54:00 to 11-SEP-11 03:00:00 (EST-5)
Location: OWEGO
Flood cause: Heavy Rain / Tropical System
Property damage: 309.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

A record flood occurred on the Susquehanna river at Owego, NY. The crest was recorded by a high water mark survey at 39.62 feet on September 8, 2011 with an estimated time at about 3:00 PM. This flood smashed the previous record flood event by being nearly 4 feet higher.

Flash Flood in ONEIDA, NEW YORK
From 07-SEP-11 20:33:00 to 08-SEP-11 13:00:00 (EST-5)
Location: UTICA
Flood cause: Heavy Rain / Tropical System
Property damage: 3.00M
Crop damage: 0.00K
Reported by: Public

The Saquoit creek at the intersection of Sunnyside and Brookline drives exceeded its banks and caused flooding along Brookline drive and across the Bridge on Genesee street on the Utica-New Hartford line.

Flood in SULLIVAN, NEW YORK
From 08-SEP-11 03:45:00 to 09-SEP-11 06:00:00 (EST-5)
Location: CALLICOON
Flood cause: Heavy Rain / Tropical System
Property damage: 300.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the Delaware River near Callicoon, NY. The river gauge located near Callicoon crested at 14.34 feet at 5:15 PM on September 8, 2011.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 14:21:00 to 08-SEP-11 11:00:00 (EST-5)
Location: MAINE
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00M
Crop damage: 0.00K
Reported by: NWS Employee

Catastrophic flash flooding occurred in the Town of Maine. Numerous roads, homes and bridges were severely damaged. Three to four feet of water flooded homes.

Flood in CHENANGO, NEW YORK
From 07-SEP-11 20:28:00 to 09-SEP-11 20:40:00 (EST-5)
Location: SHERBURNE
Flood cause: Heavy Rain / Tropical System
Property damage: 100.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A record flood occurred on the Chenango River at Sherburne, NY on September 8, 2011. The river crested at 11.64 feet at 8:15 AM. Widespread major flooding was observed along the reach of the river. This surpassed the previous record of 11.35 feet set during the June 2006 flood.

Flood in DELAWARE, NEW YORK
From 07-SEP-11 23:26:00 to 09-SEP-11 10:45:00 (EST-5)
Location: HALE EDDY
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred on the West Branch Delaware River near Hale Eddy, NY. The river gauge located near Hale Eddy crested at 14.71 feet on September 8, 2011 at 10:45 AM.

Flood in OTSEGO, NEW YORK
From 07-SEP-11 14:58:00 to 10-SEP-11 19:10:00 (EST-5)
Location: UNADILLA
Flood cause: Heavy Rain / Tropical System
Property damage: 58.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Susquehanna River near Unadilla, NY from September 7, 2011 to September 10, 2011. The river crested at 16.34 feet on September 8 at 9:15 PM. The hardest hit area was the village of Sidney, NY which incurred tens of millions of dollars in property damage.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 14:25:00 to 08-SEP-11 11:00:00 (EST-5)
Location: CASTLE CREEK
Flood cause: Heavy Rain / Tropical System
Property damage: 10.00M
Crop damage: 0.00K
Reported by: NWS Employee

Catastrophic flooding occurred in Castle Creek. Numerous roads, homes and bridges were severely damaged.

Flood in DELAWARE, NEW YORK
From 07-SEP-11 07:07:00 to 10-SEP-11 05:38:00 (EST-5)
Location: HARVARD
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the East Branch Delaware River near Harvard, NY. The river crested at 14.71 feet on September 7, 2011 at 9:45 AM.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 14:35:00 to 08-SEP-11 06:00:00 (EST-5)
Location: CASTLE CREEK
Flood cause: Heavy Rain / Tropical System
Property damage: 10.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Catastrophic flooding occurring along the Castle Creek. Numerous roads, homes and bridges were severely damaged.

Flood in DELAWARE, NEW YORK
From 07-SEP-11 07:45:00 to 09-SEP-11 05:45:00 (EST-5)
Location: WALTON
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the West Branch Delaware River near Walton, NY. The river gauge located near Walton recorded at crest of 14.40 feet at 6:00 AM on September 8, 2011.

Flood in BROOME, NEW YORK
From 08-SEP-11 00:30:00 to 11-SEP-11 08:52:00 (EST-5)
Location: DAMASCUS
Flood cause: Heavy Rain / Tropical System
Property damage: 10.80M
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred on the Susquehanna River near Windsor, NY. The river crested at 24.21 feet on September 8, 2011 at 6:45 PM.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 10:14:00 to 08-SEP-11 11:00:00 (EST-5)
Location: NICHOLS
Flood cause: Heavy Rain / Tropical System
Property damage: 8.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Catastrophic flash flooding in the Nichols area. Most roads and bridges were severely damaged.

Flash Flood in CHEMUNG, NEW YORK
From 07-SEP-11 14:00:00 to 08-SEP-11 04:00:00 (EST-5)
Location: (ELM)ELMIRA ARPT
Flood cause: Heavy Rain / Tropical System
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding took place across most of the small streams, creeks and poor drainage areas in eastern Chemung County. Many roads and bridges were washed out.

Flood in MADISON, NEW YORK
From 07-SEP-11 22:01:00 to 08-SEP-11 17:30:00 (EST-5)
Location: ONEIDA
Flood cause: Heavy Rain / Tropical System
Property damage: 800.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Record flooding occurred along the Oneida Creek near Oneida, NY. The river crested at 15.55 feet according to a USGS high water mark survey. The previous record crest was 15.01 feet from an event back in October of 1976.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 11:19:00 to 08-SEP-11 11:00:00 (EST-5)
Location: OWEGO
Flood cause: Heavy Rain / Tropical System
Property damage: 70.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Catastrophic flash flooding occurring in the Owego area. Numerous roads and bridges were severely damaged.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 10:12:00 to 08-SEP-11 11:00:00 (EST-5)
Location: GREENE
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding occurred in and around Brisben.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 09:07:00 to 08-SEP-11 10:00:00 (EST-5)
Location: SMITHBORO
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Public

Catastrophic flash flooding was reported in and around Smithboro. Numerous roads and bridges were severely damaged.

Flood in BROOME, NEW YORK
From 07-SEP-11 14:23:00 to 11-SEP-11 03:45:00 (EST-5)
Location: PARK TERRACE
Flood cause: Heavy Rain / Tropical System
Property damage: 170.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

A record flood occurred at the Binghamton/Washington St. bridge river gauge in Binghamton, NY. The crest was 25.71 feet at 3:00 PM on September 8, 2011. The flood waters topped the flood protection walls and levees, causing extensive flooding throughout the downtown areas of Binghamton. This surpassed the previous record of 25.0 feet set during the June 2006 flood.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 10:12:00 to 08-SEP-11 11:00:00 (EST-5)
Location: AFTON
Flood cause: Heavy Rain / Tropical System
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding occurred in and around Afton.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 09:07:00 to 08-SEP-11 11:00:00 (EST-5)
Location: GLENCAIRN
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Public

Catastrophic flash flooding was reported in the Barton area. Sulpher Springs Road was flooded along with many other roads and bridges. Severe damage was reported.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 09:31:00 to 08-SEP-11 10:00:00 (EST-5)
Location: BINGHAMTON
Flood cause: Heavy Rain / Tropical System
Property damage: 20.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Catastrophic flash flooding occurred in the Binghamton, Vestal, Endicott, Endwell and Chenango Valley areas. Numerous roads, bridges and homes were severely damaged.  Deep ponding of water occurred below underpasses.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 10:03:00 to 08-SEP-11 11:00:00 (EST-5)
Location: STRAITS CORNERS
Flood cause: Heavy Rain / Tropical System
Property damage: 20.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Catastrophic flash flooding occurred from Owego Creek and Catatonk Creek
into the Village of Owego and surrounding areas. Numerous roads, bridges and homes were severely damaged.

Flood in BROOME, NEW YORK
From 07-SEP-11 09:30:00 to 12-SEP-11 01:15:00 (EST-5)
Location: CONKLIN
Flood cause: Heavy Rain / Tropical System
Property damage: 20.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

A major flood occurred on the Susquehanna river at Conklin, NY. The river crested at 23.94 feet at 11:45 AM on September 8, 2011.

Flood in BROOME, NEW YORK
From 07-SEP-11 12:22:00 to 11-SEP-11 23:40:00 (EST-5)
Location: WEST ENDICOTT
Flood cause: Heavy Rain / Tropical System
Property damage: 160.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

Record flooding occurred between September 7, and September 11, 2011 along the Susquehanna river at Vestal, NY. According to the stream gauging station at Vestal, the river crested at 35.26 feet at Noon on September 8th. This surpassed the previous record of 33.66 feet set during the June 2006 flood.

Flood in BROOME, NEW YORK
From 07-SEP-11 14:41:00 to 09-SEP-11 20:30:00 (EST-5)
Location: CHENANGO FALLS
Flood cause: Heavy Rain / Tropical System
Property damage: 40.00M
Crop damage: 0.00K
Reported by: River/Stream Gage

A moderate flood crest occurred at the Chenango Forks stream gauge (CNON6) of 14.93 feet at Noon September 8, 2011.

Flash Flood in CORTLAND, NEW YORK
From 07-SEP-11 14:55:00 to 08-SEP-11 04:00:00 (EST-5)
Location: WILLET
Flood cause: Heavy Rain / Tropical System
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding of streams and creeks occurred. Many roads were closed due to flooding.

Flash Flood in OTSEGO, NEW YORK
From 07-SEP-11 15:25:00 to 08-SEP-11 10:00:00 (EST-5)
Location: ONEONTA
Flood cause: Heavy Rain / Tropical System
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads flooded in the City of Oneonta. SUNY Oneonta was almost cut off on the hill above the flooding.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 09:11:00 to 08-SEP-11 11:00:00 (EST-5)
Location: APALACHIN
Flood cause: Heavy Rain / Tropical System
Property damage: 25.00M
Crop damage: 0.00K
Reported by: Public

Catastrophic flash flooding occurred in the Apalachian area. Many roads were flooded, with streams flowing in people's yards. Houses, roads and bridges were severely damaged.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 10:01:00 to 08-SEP-11 11:00:00 (EST-5)
Location: SMITHVILLE CENTER
Flood cause: Heavy Rain / Tropical System
Property damage: 550.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding occurred as numerous roads were flooded by very heavy rain.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 14:45:00 to 08-SEP-11 14:45:00 (EST-5)
Location: NORWICH
Flood cause: Heavy Rain / Tropical System
Property damage: 83.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Willard court flooded in Norwich. Forty people were evacuated.

Flash Flood in OTSEGO, NEW YORK
From 07-SEP-11 14:45:00 to 08-SEP-11 11:00:00 (EST-5)
Location: OTEGO
Flood cause: Heavy Rain / Tropical System
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were closed due to flooding. A state of emergency was declared in Otego.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 15:51:00 to 08-SEP-11 10:00:00 (EST-5)
Location: GREENE ARPT
Flood cause: Heavy Rain / Tropical System
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Page Brook Road is flooded at the Chalker Creek culvert. Chalker creek has breached the culvert and is flowing down the road.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 10:12:00 to 08-SEP-11 11:00:00 (EST-5)
Location: KINGS SETTLEMENT
Flood cause: Heavy Rain / Tropical System
Property damage: 23.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding occurred in and around New Berlin.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 12:23:00 to 08-SEP-11 11:00:00 (EST-5)
Location: GLEN AUBREY
Flood cause: Heavy Rain / Tropical System
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Many roads were flooded in the Glen Aubrey area.

Flash Flood in SCHUYLER, NEW YORK
From 07-SEP-11 16:00:00 to 08-SEP-11 02:00:00 (EST-5)
Location: WEDGEWOOD
Flood cause: Heavy Rain / Tropical System
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Road flooding was reported on State Route 14 between Watkins Glen and Montour Falls. One lane is covered for about 100 feet.

Flood in CHENANGO, NEW YORK
From 07-SEP-11 13:39:00 to 11-SEP-11 05:15:00 (EST-5)
Location: BAINBRIDGE
Flood cause: Heavy Rain / Tropical System
Property damage: 150.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A major flood occurred at the Bainbridge, NY river gauge (BAIN6) with a crest of 26.15 feet at 9:30 PM on September 8, 2011.

Flash Flood in CHENANGO, NEW YORK
From 07-SEP-11 16:36:00 to 08-SEP-11 11:00:00 (EST-5)
Location: POLKVILLE
Flood cause: Heavy Rain / Tropical System
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

All roads were closed in the Norwich area due to major flash flooding.

Flash Flood in ONEIDA, NEW YORK
From 07-SEP-11 17:30:00 to 08-SEP-11 13:00:00 (EST-5)
Location: ROME
Flood cause: Heavy Rain / Tropical System
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Street flooding of Erie Boulevard was flooded and there was 6 inches of water over 3rd street in Rome.

Flash Flood in TIOGA, NEW YORK
From 07-SEP-11 15:00:00 to 08-SEP-11 12:00:00 (EST-5)
Location: LOUNSBERRY
Flood cause: Heavy Rain / Tropical System
Property damage: 10.00M
Crop damage: 0.00K
Reported by: Public

The Engelbert farm which is just east of Lounsberry on East River Road is several feet under water and has been since mid-afternoon. There is significant damage to equipment, buildings and crops.  Some livestock were lost in the flash flood.

Flash Flood in TOMPKINS, NEW YORK
From 07-SEP-11 18:30:00 to 08-SEP-11 09:00:00 (EST-5)
Location: ELLIS
Flood cause: Heavy Rain / Tropical System
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flash flooding occurred on many roads in the Caroline-Slaterville Springs area.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 22:38:00 to 08-SEP-11 11:00:00 (EST-5)
Location: VESTAL
Flood cause: Heavy Rain / Tropical System
Property damage: 5.00M
Crop damage: 0.00K
Reported by: Public

Both lanes of Route 434 in Vestal were completely flooded by Old Owego road next to Chucksters miniature golf.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 15:00:00 to 08-SEP-11 11:00:00 (EST-5)
Location: ENDICOTT TRI CTY ARP
Flood cause: Heavy Rain / Tropical System
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Department of Highways

Numerous roads were flooded due to heavy rains.

Flash Flood in TOMPKINS, NEW YORK
From 07-SEP-11 17:54:00 to 08-SEP-11 09:00:00 (EST-5)
Location: ITHACA
Flood cause: Heavy Rain / Tropical System
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roads were flooded around the Ithaca area.

Flash Flood in BROOME, NEW YORK
From 07-SEP-11 18:00:00 to 08-SEP-11 11:00:00 (EST-5)
Location: WHITNEY PT
Flood cause: Heavy Rain / Tropical System
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Employee

Multiple roads were closed with water over them in the Town of Barker.