Deep moisture from the Atlantic Ocean was fed into a warm frontal zone located over Central New York by low pressure near New York City. This led to areas of moderate to heavy rainfall totaling between 3 to 5 inches of rain with locally higher amounts. This rainfall led to widespread flash flooding across the Southern Tier and Finger Lakes region.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 11:28:00 to 26-OCT-21 14:30:00 (EST-5)
Location: JEFFERSONVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Severe flash flooding reported on NY-52. All lanes blocked.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 11:42:00 to 26-OCT-21 14:00:00 (EST-5)
Location: KENOZA LAKE
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: State Official

Vehicle reported in the river near NY-17B and Mesmer Hill Rd. Water washing out roadway.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 11:52:00 to 26-OCT-21 13:00:00 (EST-5)
Location: CARDIFF
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding reported on US-20 between Tully Farms Road and Case Hill Road. All lanes closed.

Flash Flood in DELAWARE, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: HANCOCK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded in the Village of Hancock.

Flash Flood in DELAWARE, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:15:00 (EST-5)
Location: MARGARETVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded in and around Margaretville.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: HORTONVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads reported flooded in the area. Water rescues were underway.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: CALLICOON
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded. Water rescues in progress.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: JEFFERSONVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded with water rescues underway.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: LIVINGSTON MANOR
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded with water rescues underway.

Flash Flood in SULLIVAN, NEW YORK
From 26-OCT-21 13:45:00 to 26-OCT-21 14:30:00 (EST-5)
Location: ROSCOE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded with water rescues underway.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 13:58:00 to 26-OCT-21 19:00:00 (EST-5)
Location: MOTTVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Up to 8 inches of water was rapidly flowing across Gully Road.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 14:12:00 to 26-OCT-21 19:00:00 (EST-5)
Location: MANLIUS CENTER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding reported on NY-290 between North Manlius Street and Clemons Road.

Flash Flood in TOMPKINS, NEW YORK
From 26-OCT-21 18:00:00 to 26-OCT-21 18:45:00 (EST-5)
Location: SOUTH HILL
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread flooding of city streets on the south part of Ithaca.

Flash Flood in CAYUGA, NEW YORK
From 26-OCT-21 17:30:00 to 26-OCT-21 19:30:00 (EST-5)
Location: UNION SPGS
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads and homes were flooding in the area.

Flash Flood in CAYUGA, NEW YORK
From 26-OCT-21 17:30:00 to 26-OCT-21 19:30:00 (EST-5)
Location: MORAVIA
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding along Mill Creek inundated several roads and homes.

Flash Flood in CAYUGA, NEW YORK
From 26-OCT-21 17:30:00 to 26-OCT-21 19:30:00 (EST-5)
Location: LOCKE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread flooding of roads and homes was occurring in the area.

Flash Flood in CAYUGA, NEW YORK
From 26-OCT-21 17:30:00 to 26-OCT-21 19:30:00 (EST-5)
Location: MORAVIA
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Significant flooding along Owasco Inlet and in the Village of Moravia occurred. Water was deep across West Cayuga Street.

Flash Flood in SENECA, NEW YORK
From 26-OCT-21 17:16:00 to 26-OCT-21 20:30:00 (EST-5)
Location: SENECA FALLS
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread flash flooding occurred throughout the city.

Flash Flood in SENECA, NEW YORK
From 26-OCT-21 17:15:00 to 26-OCT-21 20:00:00 (EST-5)
Location: WATERLOO
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Numerous roads, and a few homes, were flooded throughout the village. Many roads were closed and a State of Emergency was in effect for the area.

Flash Flood in CAYUGA, NEW YORK
From 26-OCT-21 17:10:00 to 26-OCT-21 19:30:00 (EST-5)
Location: LOCKE
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Public

There was significant flash flooding of roads, yards, outbuildings and homes in Locke near the junction of NY-90 and NY-38.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 17:00:00 to 26-OCT-21 19:30:00 (EST-5)
Location: CAMILLUS
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: State Official

Flash flooding damaged numerous roadways and homes. Voluntary evacuation of 14 homes occurred due to flooding.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 17:00:00 to 26-OCT-21 19:30:00 (EST-5)
Location: ONONDAGA
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: State Official

Widespread road flooding in the vicinity of Kirk Park was reported.

Flash Flood in CORTLAND, NEW YORK
From 26-OCT-21 17:00:00 to 26-OCT-21 19:30:00 (EST-5)
Location: CORTLAND
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: State Official

Widespread flooding of roads led to many closures in Cortland.

Flash Flood in BROOME, NEW YORK
From 26-OCT-21 17:00:00 to 26-OCT-21 19:30:00 (EST-5)
Location: MAINE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nanticoke Creek reported to be flooding several locations along Tiona and Nanticoke Roads.

Flash Flood in TOMPKINS, NEW YORK
From 26-OCT-21 16:00:00 to 26-OCT-21 19:00:00 (EST-5)
Location: FREEVILLE
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Flooding of properties along Mott Road in Dryden reported via social media.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 16:00:00 to 26-OCT-21 18:15:00 (EST-5)
Location: CICERO CENTER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Flash flooding reported across Bull Street in Cicero.

Flash Flood in TOMPKINS, NEW YORK
From 26-OCT-21 15:40:00 to 26-OCT-21 19:00:00 (EST-5)
Location: SOUTH LANSING
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Flooding of properties along Triphammer Road near Asbury Road was reported by social media.

Flash Flood in BROOME, NEW YORK
From 26-OCT-21 15:30:00 to 26-OCT-21 19:30:00 (EST-5)
Location: GLEN AUBREY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

State Route 26 in Glen Aubrey was closed due to flash flooding.

Flash Flood in TOMPKINS, NEW YORK
From 26-OCT-21 15:27:00 to 26-OCT-21 16:30:00 (EST-5)
Location: EAST CAYUGA HGTS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Flooding reported on Warren Road just south of Hanshaw Road near the Cornell Golf course.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 14:59:00 to 26-OCT-21 19:30:00 (EST-5)
Location: MARCELLUS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Social media reported that water was out of banks on the creek in Marcellus Park.

Flash Flood in BROOME, NEW YORK
From 26-OCT-21 14:39:00 to 26-OCT-21 19:30:00 (EST-5)
Location: SANFORD
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Oquaga Creek was reported to be flooding the area.

Flash Flood in CORTLAND, NEW YORK
From 26-OCT-21 14:26:00 to 26-OCT-21 17:00:00 (EST-5)
Location: EAST VIRGIL
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple locations along Route 11 in, and around, Cortland were under water due to flash flooding.

Flash Flood in ONONDAGA, NEW YORK
From 26-OCT-21 14:24:00 to 26-OCT-21 17:00:00 (EST-5)
Location: CARDIFF
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding on Interstate 81, NY-11 and U.S. Route 20 near Exit 15 in Lafayette. All lanes closed.