An upper level low pressure system interacting with abundant tropical moisture from the remnants of Tropical Storm Nicole dropped 3 to 6 inches of rain across central New York. Steady and occasionally heavy rain fell across much of the region,  causing flash flood problems, as well as minor flooding of the larger main stem rivers. The rain and flooding continued into the overnight and next day (October 1), especially across parts of the Catskills. Higher amounts of rain fell across Delaware county in the western Catskills, where 6 to 8 inches of rain caused more serious flood problems.

Thunderstorm Wind in DELAWARE, NEW YORK
From 30-SEP-10 18:00:00 to 30-SEP-10 18:00:00 (EST-5)
Location: GRANTON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Power lines and 20 inch diameter trees were blown down. Several roads were blocked.

Flash Flood in CORTLAND, NEW YORK
From 30-SEP-10 15:30:00 to 30-SEP-10 19:00:00 (EST-5)
Location: SOUTH CORTLAND
Flood cause: Heavy Rain
Property damage: 370.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Many roads in the county were closed due to flooding. A large section of Route 11 was closed between Polkville and Marathon. Trout Brook over-topped a bridge where it crossed Route 11, and many roads in the Village of McGraw, including Route 41, were closed.

Flash Flood in BROOME, NEW YORK
From 30-SEP-10 12:00:00 to 30-SEP-10 18:00:00 (EST-5)
Location: MAINE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several areas in the western part of the county experienced problems due to flash flooding. The communities of Endicott, Endwell and Maine reported several roads flooded, washouts, and basement flooding. Several vehicles were stranded due to high water at road intersections and in parking lots.

Flash Flood in ONEIDA, NEW YORK
From 30-SEP-10 17:00:00 to 30-SEP-10 20:00:00 (EST-5)
Location: ROME
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Water covered many roads in Rome. East Erie Blvd. was flooded by 6 to 12 inches of water, and underpasses along the road were flooded. The Walmart parking lot was also flooded.

Flash Flood in TIOGA, NEW YORK
From 30-SEP-10 15:30:00 to 30-SEP-10 19:00:00 (EST-5)
Location: WELTONVILLE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flash flooding in a few areas of Newark Valley. The most serious flooding occurred where water and debris flowed downhill across Rock Street to Irishtown Road. Both roads were closed due to flooding. The flood waters and debris flowed across Rock Street to Slosson Creek, which overflowed. Water continued across Route 38 in the Village of Newark Valley. Homes were flooded along Mill Street and Clinton Street where the creek overflowed. Elsewhere in the village, the Owego Creek flooded the Trout Ponds recreation area. Flash flooding also occurred along Route 38B in the town of Newark Valley due to a mud slide.

Flash Flood in TIOGA, NEW YORK
From 30-SEP-10 15:30:00 to 30-SEP-10 18:00:00 (EST-5)
Location: OWEGO
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several roads were flooded in and around the Village of Owego.