Allegany storm history
Storm events recorded in Allegany, New York between 1950 and 2025.
567
Total events
11
Tornadoes
30
Hail
101
Floods
0
Deaths
$26.2M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
Emergency Management reported several power lines down.
Powerlines were downed along Route 417.
Lake-Effect Snow Lake-Effect Snow
Flash Flood Flash Flood
Water flowing across a portion of County Road 29 in Alma.
Flash Flood Flash Flood
Flash flooding reported on State Route 417 in the Town of Genesee.
Flash Flood Flash Flood
Flash flooding reported on State Route 417 in Bolivar.
Flash Flood Flash Flood
Water flowing across Broad Street in Richburg.
Flash Flood Flash Flood
Water flowing over the road on State Route 21 in Andover.
Flash Flood Flash Flood
Phillips Hill Road closed due to flooding.
Flash Flood Flash Flood
Flooding reported on O Connor Road.
Flash Flood Flash Flood
Flooding occurring with multiple road closures throughout town.
Flash Flood Flash Flood
Flooding occurring with multiple road closures throughout town.
Flash Flood Flash Flood
Flooding occurring with a few road closures throughout town.
Flash Flood Flash Flood
Several homes evacuated on River Street due to flooding.
Flash Flood Flash Flood
Report of several homes evacuated on South Church Street.
Flash Flood Flash Flood
RT 70 closed due to high water over the road.
Flash Flood Flash Flood
Boat deployed to do a water rescue of residence.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Cuba.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Bolivar.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Wirt.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Friendship.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Scio.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Belmont.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Belfast.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in Wellsville.
Thunderstorm Wind Thunderstorm Wind
A strong line of thunderstorms moved across western NY during the afternoon of 16 March 2025, with numerous wind damage reports. An area of concentrated structural damage was reported in southern Allegany County, NY as the line of thunderstorms moved northeast out of PA around 3:…
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in Alfred.
Thunderstorm Wind Thunderstorm Wind
Multiple reports of trees downed in the Town of Almond.
Thunderstorm Wind Thunderstorm Wind
Measured wind gust at the Grove New York State Mesonet.
Lake-Effect Snow Lake-Effect Snow
Thunderstorm Wind Thunderstorm Wind
Tree downed on Monahan Road.
Thunderstorm Wind Thunderstorm Wind
Tree downed on Dimmick Road near Pleasant Valley Road.
Thunderstorm Wind Thunderstorm Wind
Tree downed on South Hill Road.
Thunderstorm Wind Thunderstorm Wind
Tree downed on Ray Hill Road.
Flash Flood Flash Flood
Deep water ponding on Dyke Street in Andover.
Flash Flood Flash Flood
Water was flowing across Trapping Brook Road.
Flash Flood Flash Flood
Portion of Traux Road washed out, Funland Skate Center inundated with waters, flooding on Trapping Brook Road and North Broad Street in Wellsville.
Flash Flood Flash Flood
Reports of numerous roads flooding and roads closed in Wellsville.
Flash Flood Flash Flood
Flooding on Voorhees Hill Road.
Flash Flood Flash Flood
Route 417 is underwater near Horse Run Road intersection.
Flash Flood Flash Flood
Flooding occurred on Route 18 near Alma.
Flash Flood Flash Flood
Flooding occurred on 417 near Little Genesee Library.
Tornado EF1 Tornado
EF-1 Tornado confirmed by NWS Storm Survey. Discontinuous 6 mile path of damage, with several areas of extensive tree damage with dozens of snapped and uprooted trees.
Thunderstorm Wind Thunderstorm Wind
Multiple trees downed in Allegany County.
Flash Flood Flash Flood
Water rescues were being conducted in Whitesville per Emergency Manager and 911 dispatch.
Flash Flood Flash Flood
Water rescues were being conducted in Andover per Emergency Manager and 911 dispatch.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 27 | 0 |
| 2024 | 27 | 1 |
| 2023 | 18 | 0 |
| 2022 | 17 | 0 |
| 2021 | 32 | 0 |
| 2020 | 16 | 0 |
| 2019 | 21 | 0 |
| 2018 | 26 | 0 |
| 2017 | 37 | 2 |
| 2016 | 15 | 0 |
| 2015 | 25 | 0 |
| 2014 | 18 | 0 |
| 2013 | 15 | 0 |
| 2012 | 35 | 0 |
| 2011 | 27 | 0 |
| 2010 | 12 | 1 |
| 2009 | 8 | 1 |
| 2008 | 12 | 0 |
| 2007 | 10 | 0 |
| 2006 | 10 | 0 |
| 2005 | 13 | 1 |
| 2004 | 9 | 0 |
| 2003 | 11 | 0 |
| 2002 | 15 | 2 |
| 2001 | 7 | 0 |
| 2000 | 12 | 0 |
| 1999 | 14 | 0 |
| 1998 | 12 | 0 |
| 1997 | 6 | 1 |
| 1996 | 9 | 1 |
| 1995 | 5 | 0 |
| 1994 | 4 | 0 |
| 1993 | 3 | 1 |
| 1992 | 4 | 0 |
| 1991 | 4 | 0 |
| 1990 | 3 | 0 |
| 1989 | 4 | 0 |
| 1988 | 5 | 0 |
| 1987 | 3 | 0 |
| 1986 | 1 | 0 |
| 1985 | 2 | 0 |
| 1984 | 1 | 0 |
| 1983 | 1 | 0 |
| 1979 | 1 | 0 |
| 1976 | 1 | 0 |
| 1975 | 1 | 0 |
| 1974 | 2 | 0 |
| 1971 | 1 | 0 |
| 1970 | 1 | 0 |
| 1969 | 1 | 0 |
| 1963 | 1 | 0 |
| 1956 | 2 | 0 |