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Sullivan storm history

Storm events recorded in Sullivan, New York between 1950 and 2025.

686
Total events
12
Tornadoes
119
Hail
86
Floods
3
Deaths
$215.6M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

October 1, 2010 · Sullivan, New York
Flash Flood Flash Flood1 death
Heavy rain caused flooding of numerous roads throughout the county, including Rockland. A vehicle fatality occurred at about 5:00 AM on the morning of October 1st in the Town of Neversink. The driver was traveling to work and was swept by floodwaters into Willowemoc Creek. The bo…
June 27, 2006 · Sullivan, New York
Flash Flood Flash Flood1 death, $100.0M damage
August 3, 1996 · Sullivan, New York
Lightning Lightning1 death
July 23, 2008 · Sullivan, New York
Flash Flood Flash Flood$15.0M damage
Heavy rain from thunderstorms caused significant flash flooding. All roads in the towns of Colchester were closed, and a State of Emergency was declared. 15-20 residents were evacuated near County Highway 7. Serious damage occurred to a bridge on the highway. Portions of the road…
April 2, 2005 · Sullivan, New York
Flash Flood Flash Flood$10.0M damage
September 18, 2004 · Sullivan, New York
Flood Flood$2.0M damage
The Delaware River at Barryville went above its flood stage of 17 feet the morning of the 18th, crested at 24.1 feet at 3:15 PM EST on the 18th, then fell back below the flood stage late morning on the 19th. Rainfall amounts were 4 to 7 inches due to the remnants of hurricane Iva…
September 18, 2004 · Sullivan, New York
Flash Flood Flash Flood$15.0M damage
Heavy rain with amounts of 3 to 6 inches caused flash flooding. The heaviest amounts were at the highest elevations in the northwest section of the county. The rain which fell from the 16th to the 18th was due to the remnants of hurricane Ivan. Most streams and creeks went out of…
August 30, 2004 · Sullivan, New York
Flash Flood Flash Flood$20.0M damage
Heavy rain caused flash flooding. Numerous roads were flooded. Reports of power poles being washed out of the ground. One residence was undermined enough to partially collapse. Evacuations took place. Rainfall amounts were 1 to 4 inches.
August 12, 2000 · Sullivan, New York
Flash Flood Flash Flood$1.3M damage
Persistent rains associated with a nearly stationary upper level low pressure system produced a prolonged period of very heavy rain across Sullivan county. Extensive flooding was reported in Cochecton, Delaware, and Tusten where a State of Emergency was declared because of numero…
January 19, 1996 · Sullivan, New York
Flash Flood Flash Flood$8.7M damage
November 16, 1989 · Sullivan, New York
Tornado F1 Tornado$25.0M damage
May 9, 1961 · Sullivan, New York
Tornado F2 Tornado4 injuries, $2.5M damage
December 26, 2025 · Sullivan, New York
Winter Storm Winter Storm
Snow accumulated between 6 and 8 inches.
December 23, 2025 · Sullivan, New York
Winter Weather Winter Weather
Snow accumulated between 4 and 7 inches.
December 2, 2025 · Sullivan, New York
Heavy Snow Heavy Snow
Snow accumulated between 5 and 10 inches.
September 25, 2025 · Sullivan, New York
Tornado EF0 Tornado
Just before noon, a thunderstorm along a warm front separated from the rest of a line of showers and storms and began to rotate. With a favorable environment but low instability, a weak tornado touched down near Callicoon Center. With near peak foliage in parts of the Catskills, …
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree onto the road.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree onto a propane tank. Unknown if tank was damaged.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down multiple trees.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds moved a shed onto Old Monticello Road.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Elk Drive.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down multiple trees and wires.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree on Highway 209.
July 3, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a pole and wires on Highway 209.
May 6, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree on wires between Gamble Road and Willow Heights Road.
April 19, 2025 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked a tree down across the roadway at Route 97 and Viaduct Road.
December 1, 2024 · Sullivan, New York
Drought Drought
The U.S. Drought Monitor declared Severe Drought over the eastern half of the county as a result of insufficient rainfall during the past 90 days coupled with low streamflows, groundwater levels and drier than average soil moisture.
November 21, 2024 · Sullivan, New York
Heavy Snow Heavy Snow
Snow accumulated between 4 and 13 inches.
November 12, 2024 · Sullivan, New York
Drought Drought
The U.S. Drought Monitor declared Severe Drought over the eastern half of the county as a result of insufficient rainfall during the past 90 days coupled with low streamflows, groundwater levels and drier than average soil moisture.
August 14, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
A microburst occurred in Roscoe, NY. The microburst went down a hillside and downed numerous trees in a uniform direction. Some additional damage from downed trees occurred on a few residential properties on Dutch Hill road. The microburst ended before reaching Dutch Hill road.
July 24, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Topaz Lane.
July 24, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree onto wires.
July 24, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree on Stanton Corners Road.
July 24, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree on NY 17 Eastbound.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Discovery Ridge Road.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
The New York State Mesonet station WBOU (Woodbourne) measured a gust of 59 mph.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Myers Road.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Riverside Drive.
July 15, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires on Claryville and Frost Valley Roads.
June 30, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires.
June 30, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees on Knickerbocker Road.
June 30, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down power poles.
June 22, 2024 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down a tree and wires on a road.
May 22, 2024 · Sullivan, New York
Hail Hail
January 6, 2024 · Sullivan, New York
Heavy Snow Heavy Snow
Snow accumulated between 6 and 12 inches.
December 18, 2023 · Sullivan, New York
Flash Flood Flash Flood
Flood waters are spreading into the first floor of a house.
September 8, 2023 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down trees and wires near Roeblings Bridge.
September 8, 2023 · Sullivan, New York
Thunderstorm Wind Thunderstorm Wind
Strong thunderstorm winds knocked down multiple tree limbs at a campground.

Events by year

YearEventsTornadoes
2025141
2024210
2023311
2022170
2021460
2020250
2019240
2018300
201750
201640
201560
2014231
2013160
201290
2011340
2010160
2009430
2008270
2007240
2006160
2005340
2004170
2003101
2002210
2001140
2000301
1999110
1998130
199750
1996292
1995120
199450
199310
199240
1991120
199081
198931
198840
198730
198641
198530
198340
197310
197221
197110
196310
196210
196111
195710