A strong low pressure system tracked northeast from Kentucky to western New York state during the daylight hours on Thursday the 16th. A large fetch of Gulf and Atlantic moisture was pulled northward ahead of the cold front, which produced a squall line of thunderstorms with very heavy rainfall. This line of thunderstorms produced 45 to 74 mph winds across a large part of central NY. Additionally, the squall line spawned an F1 tornado north of Elmira, NY. As the squall line moved east, late in the afternoon of the 16th, it slowed down and stalled for a time. Areas from Owego and Binghamton, NY, north and east through Ithaca, Cortland and Norwich, NY, to Oneida county in the western Mohawk Valley and the northern Catskills saw the brunt of the heavy rainfall from this slow moving line of storms. 1.5 to 4 inches of rain fell in just 3 hours causing significant flash flooding over many of these areas. Many hillsides and creeks turned into raging torrents, causing mudslides and debris flows that cascaded into more populated valley areas. In the urban valley regions, the flash flood reports were numerous with road washouts, highway closings, and some parking lots that were entirely flooded, ruining many cars. A mudslide on Interstate 88 outside of Port Crane, NY caused a multi-car pile up. The flash flooding evolved into a minor to moderate river flood event mainly on the Susquehanna River and its tributaries in New York from Thursday night the 16th until Saturday the 18th.

Thunderstorm Wind in ONONDAGA, NEW YORK
From 16-NOV-06 15:50:00 to 16-NOV-06 15:50:00 (EST-5)
Location: SYRACUSE
Magnitude: 64.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A 74 mph wind gust was measured on the roof of the Carrier Dome in Syracuse.

Flood in CHENANGO, NEW YORK
From 17-NOV-06 16:45:00 to 18-NOV-06 09:00:00 (EST-5)
Location: BAINBRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rainfall caused minor flooding on the Susquehanna River at Bainbridge. The river went above its flood stage of 13 feet at 4:45 pm on the 16th and crested at 13.48 feet at 2 am on the 18th before falling below flood stage again around mid-morning the 18th.

Flash Flood in BROOME, NEW YORK
From 16-NOV-06 18:30:00 to 16-NOV-06 23:00:00 (EST-5)
Location: PORT CRANE
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: County Official

A mud slide on interstate 88 resulted in a multi-injury car accident.

Flash Flood in ONEIDA, NEW YORK
From 16-NOV-06 16:00:00 to 16-NOV-06 23:00:00 (EST-5)
Location: ROME
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads, bridges and homes were flooded by heavy rainfall. Many creeks and streams overflowed their banks.

Flash Flood in TIOGA, NEW YORK
From 16-NOV-06 16:00:00 to 16-NOV-06 23:00:00 (EST-5)
Location: OWEGO
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were washed out.

Flash Flood in CORTLAND, NEW YORK
From 16-NOV-06 16:05:00 to 16-NOV-06 23:00:00 (EST-5)
Location: CORTLAND
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: County Official

Roads flooded throughout the county.

Flash Flood in DELAWARE, NEW YORK
From 16-NOV-06 18:20:00 to 16-NOV-06 23:00:00 (EST-5)
Location: FRANKLIN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Roads flooded in the western part of the county.

Flash Flood in CHENANGO, NEW YORK
From 16-NOV-06 18:39:00 to 16-NOV-06 23:00:00 (EST-5)
Location: GREENE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Numerous roads flooded. Water 2 feet deep on some roads.

Thunderstorm Wind in ONONDAGA, NEW YORK
From 16-NOV-06 16:05:00 to 16-NOV-06 16:05:00 (EST-5)
Location: LEWISTON MANOR
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees on roofs in the city of Syracuse. Trees and wires down county wide.

Thunderstorm Wind in DELAWARE, NEW YORK
From 16-NOV-06 16:10:00 to 16-NOV-06 16:10:00 (EST-5)
Location: DELHI
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: COOP Observer

Trees down.

Flash Flood in TOMPKINS, NEW YORK
From 16-NOV-06 16:05:00 to 16-NOV-06 17:45:00 (EST-5)
Location: ITHACA
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: County Official

Roads flooded throughout the county.

Thunderstorm Wind in ONEIDA, NEW YORK
From 16-NOV-06 16:50:00 to 16-NOV-06 16:50:00 (EST-5)
Location: NEW HARTFORD
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Structural damage reported.

Flash Flood in OTSEGO, NEW YORK
From 16-NOV-06 18:20:00 to 16-NOV-06 23:00:00 (EST-5)
Location: ONEONTA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Roads flooded in the western part of the county.

Flood in CHENANGO, NEW YORK
From 16-NOV-06 22:30:00 to 18-NOV-06 07:00:00 (EST-5)
Location: GREENE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain caused the Chenango River at Greene to exceed its 13 ft. flood stage. The river crested at 15.46 ft. with minor flooding observed.

Flash Flood in DELAWARE, NEW YORK
From 16-NOV-06 20:00:00 to 16-NOV-06 23:00:00 (EST-5)
Location: HANCOCK
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A state of emergency was declared in the town of Hancock due to flooding and damage to public infrastructure and private property. Officials conducted evacuations of people on Sands Creek Road.

Thunderstorm Wind in CHENANGO, NEW YORK
From 16-NOV-06 16:56:00 to 16-NOV-06 16:56:00 (EST-5)
Location: SOUTH OTSELIC
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

Trees down.

Flash Flood in MADISON, NEW YORK
From 16-NOV-06 16:50:00 to 16-NOV-06 23:00:00 (EST-5)
Location: CAZENOVIA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Road flooding in Cazenovia and Hamilton.

Flash Flood in ONEIDA, NEW YORK
From 16-NOV-06 17:00:00 to 16-NOV-06 22:00:00 (EST-5)
Location: UTICA
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Significant flash flooding county wide, especially in Utica where urban flooding was particularly serious.

Flood in BROOME, NEW YORK
From 16-NOV-06 20:57:00 to 18-NOV-06 11:00:00 (EST-5)
Location: VESTAL
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain caused the Susquehanna River at Vestal to exceed its 18 ft. flood stage. The river crested at 21.76 with moderate flooding observed.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 16-NOV-06 14:50:00 to 16-NOV-06 14:50:00 (EST-5)
Location: SOUTHPORT
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down in Southport and Millport.

Flood in BROOME, NEW YORK
From 17-NOV-06 22:52:00 to 18-NOV-06 01:00:00 (EST-5)
Location: BINGHAMTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rainfall caused minor flooding on the Susquehanna River at Washington Street in Binghamton. The river reached its flood stage of 14 feet at 10:52 pm on the 17th and crested at 14.7 feet at 12:30 am on the 18th.

Flash Flood in DELAWARE, NEW YORK
From 16-NOV-06 18:45:00 to 16-NOV-06 23:00:00 (EST-5)
Location: WALTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Route 206 flooded and closed south of Walton.

Flash Flood in TIOGA, NEW YORK
From 16-NOV-06 16:00:00 to 16-NOV-06 23:00:00 (EST-5)
Location: NICHOLS
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads washed out.

Flash Flood in TIOGA, NEW YORK
From 16-NOV-06 16:00:00 to 16-NOV-06 23:00:00 (EST-5)
Location: APALACHIN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads washed out.

Flash Flood in BROOME, NEW YORK
From 16-NOV-06 16:30:00 to 16-NOV-06 22:00:00 (EST-5)
Location: BINGHAMTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Three feet of water on Vestal Avenue in Binghamton.

Flood in BROOME, NEW YORK
From 17-NOV-06 08:03:00 to 18-NOV-06 22:00:00 (EST-5)
Location: CONKLIN
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rainfall caused minor flooding on the Susquehanna River at Conklin. The river reached its flood stage of 11 feet at 8:03 am on the 17th and crested at 11.55 feet at 4:00 pm. The river fell below flood stage during the evening of the 18th.

Flash Flood in ONEIDA, NEW YORK
From 16-NOV-06 18:55:00 to 16-NOV-06 23:00:00 (EST-5)
Location: BOONVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported 1.75 inches of rain in 15 minutes at Delta Lake. Flooding reported in Clinton.

Thunderstorm Wind in CAYUGA, NEW YORK
From 16-NOV-06 16:15:00 to 16-NOV-06 16:15:00 (EST-5)
Location: VENICE CENTER
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Trees down.

Thunderstorm Wind in CAYUGA, NEW YORK
From 16-NOV-06 16:15:00 to 16-NOV-06 16:15:00 (EST-5)
Location: GENOA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Scattered trees down.

Flash Flood in CHENANGO, NEW YORK
From 16-NOV-06 16:30:00 to 16-NOV-06 23:00:00 (EST-5)
Location: GREENE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Roads flooded throughout the county.

Flash Flood in OTSEGO, NEW YORK
From 16-NOV-06 18:20:00 to 16-NOV-06 23:00:00 (EST-5)
Location: WELLS BRIDGE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: County Official

Roads flooded across western part of the county.

Flash Flood in OTSEGO, NEW YORK
From 16-NOV-06 18:25:00 to 16-NOV-06 23:00:00 (EST-5)
Location: ONEONTA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Streams over roads and bridges.

Tornado in CHEMUNG, NEW YORK
From 16-NOV-06 14:50:00 to 16-NOV-06 14:55:00 (EST-5)
Location: ERIN
Tornado F-scale: F1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down over the northern part of the town of Erin and tracked to the East-Northeast across Route 224 where it lifted on a hillside. Numerous trees were blown down and a garage collapsed. The winds that caused the damage are estimated between 70 and 80 mph.

Flash Flood in CHENANGO, NEW YORK
From 16-NOV-06 17:15:00 to 16-NOV-06 23:00:00 (EST-5)
Location: NORWICH
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads and homes flooded. Numerous road wash outs.

Flood in CHENANGO, NEW YORK
From 16-NOV-06 20:35:00 to 18-NOV-06 04:00:00 (EST-5)
Location: SHERBURNE
Flood cause: Heavy Rain
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain caused the Chenango River at Sherburne to exceed its 8 ft. flood stage. The river crested at 9.52 ft. with moderate flooding observed.

Thunderstorm Wind in ONEIDA, NEW YORK
From 16-NOV-06 16:50:00 to 16-NOV-06 16:50:00 (EST-5)
Location: KIRKLAND
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: County Official

Trees down by thunderstorm winds.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 16-NOV-06 14:50:00 to 16-NOV-06 14:50:00 (EST-5)
Location: VAN ETTEN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

A roof was blown off and a swath of trees blown down near Van Etten.

Thunderstorm Wind in TOMPKINS, NEW YORK
From 16-NOV-06 15:20:00 to 16-NOV-06 15:20:00 (EST-5)
Location: GROTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Trees down.

Flash Flood in BROOME, NEW YORK
From 16-NOV-06 17:49:00 to 16-NOV-06 23:00:00 (EST-5)
Location: ENDICOTT
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous roads flooded.

Flood in BROOME, NEW YORK
From 16-NOV-06 21:00:00 to 17-NOV-06 09:00:00 (EST-5)
Location: CHENANGO FORKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain caused the Chenango River at Chenango Forks to go above its flood stage of 10 feet. The river crested at 10.89 feet and minor flooding was observed.

Flash Flood in BROOME, NEW YORK
From 16-NOV-06 16:05:00 to 16-NOV-06 23:00:00 (EST-5)
Location: VESTAL
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Flooding along the Vestal Parkway.

Flash Flood in BROOME, NEW YORK
From 16-NOV-06 16:05:00 to 16-NOV-06 23:00:00 (EST-5)
Location: ENDWELL
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Multiple houses flooded. A road collapsed.

Flash Flood in CHENANGO, NEW YORK
From 16-NOV-06 16:30:00 to 16-NOV-06 23:00:00 (EST-5)
Location: NORWICH
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads flooded and washed out. Numerous homes flooded.

Flood in CORTLAND, NEW YORK
From 17-NOV-06 13:30:00 to 18-NOV-06 04:00:00 (EST-5)
Location: CORTLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heavy rain brought the Tioughnioga River at Cortland to exceed its 8 foot flood stage. The river crested at 8.31 feet with minor flooding observed.

Flash Flood in SULLIVAN, NEW YORK
From 16-NOV-06 19:20:00 to 16-NOV-06 23:00:00 (EST-5)
Location: MONTICELLO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Roads flooded.

Flash Flood in CHENANGO, NEW YORK
From 16-NOV-06 19:52:00 to 16-NOV-06 23:00:00 (EST-5)
Location: BAINBRIDGE
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Roads and bridges flooded by streams.

Thunderstorm Wind in CHEMUNG, NEW YORK
From 16-NOV-06 14:30:00 to 16-NOV-06 14:30:00 (EST-5)
Location: MILLPORT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A few trees down knocked down.

Thunderstorm Wind in MADISON, NEW YORK
From 16-NOV-06 16:15:00 to 16-NOV-06 16:15:00 (EST-5)
Location: MORRISVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down.

Thunderstorm Wind in ONEIDA, NEW YORK
From 16-NOV-06 16:50:00 to 16-NOV-06 16:50:00 (EST-5)
Location: UTICA
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down.

Thunderstorm Wind in CAYUGA, NEW YORK
From 16-NOV-06 15:21:00 to 16-NOV-06 15:21:00 (EST-5)
Location: LOCKE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires down.

Thunderstorm Wind in TIOGA, NEW YORK
From 16-NOV-06 15:43:00 to 16-NOV-06 15:43:00 (EST-5)
Location: NEWARK VLY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A few trees down.

Flash Flood in CAYUGA, NEW YORK
From 16-NOV-06 16:35:00 to 16-NOV-06 17:45:00 (EST-5)
Location: AUBURN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Road flooding in Auburn.

Flash Flood in MADISON, NEW YORK
From 16-NOV-06 19:50:00 to 16-NOV-06 23:00:00 (EST-5)
Location: EATON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Stream flooding buildings.