Flash Flood Warnings in New York
3,392 flash flood warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Flash Flood Warnings
- 3,392
- Busiest year
- 1996195 flash flood warnings
- Average year
- 83over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Westchester County232
- Queens County199
- Suffolk County178
- Rockland County175
- Delaware County172
- Broome County169
- Kings County166
- Nassau County161
- New York County160
- Orange County155
- Bronx County150
- Chenango County146
- Cattaraugus County143
- Steuben County142
- Sullivan County139
- Richmond County137
- Tioga County130
- Chautauqua County119
- Otsego County119
- Ulster County115
- Essex County110
- Erie County107
- Oneida County99
- Clinton County98
- Rensselaer County97
- Dutchess County96
- Herkimer County95
- Saratoga County93
- Chemung County92
- Greene County89
- Cortland County89
- Allegany County88
- Columbia County85
- Ontario County82
- Livingston County82
- Monroe County80
- Madison County79
- Putnam County79
- Washington County78
- Albany County73
22 more counties
- Cayuga County72
- Montgomery County70
- Tompkins County70
- Wyoming County68
- Onondaga County67
- Schuyler County66
- Fulton County64
- Schoharie County63
- Schenectady County61
- Franklin County60
- Warren County55
- Wayne County55
- Niagara County53
- Yates County49
- Seneca County48
- Hamilton County47
- St. Lawrence County45
- Genesee County44
- Lewis County35
- Orleans County33
- Oswego County28
- Jefferson County19
The latest flash flood warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 3:46 PM EDT | Flash Flood Warning | BUF | Niagara | 4 hr |
| Sep 13, 9:06 AM EDT | Flash Flood Warning | OKX | Putnam, Westchester | 3 hr |
| Sep 13, 8:21 AM EDT | Flash Flood Warning | OKX | Rockland | 4 hr |
| Sep 13, 7:23 AM EDT | Flash Flood Warning | OKX | Westchester | 4 hr |
| Sep 3, 10:13 PM EDT | Flash Flood Warning | BUF | Erie, Livingston, Wyoming | 2 hr |
| Sep 3, 8:47 PM EDT | Flash Flood Warning | BUF | Erie, Wyoming | 4 hr |
| Sep 3, 7:27 PM EDT | Flash Flood Warning | BUF | Erie | 4 hr |
| Sep 2, 10:19 PM EDT | Flash Flood Warning | BGM | Steuben | 3 hr |
| Sep 2, 8:46 PM EDT | Flash Flood Warning | BUF | Allegany, Cattaraugus | 4 hr |
| Sep 2, 7:26 PM EDT | Flash Flood Warning | BUF | Erie, Genesee, Niagara, Orleans | 4 hr |
| Sep 2, 11:07 AM EDT | Flash Flood Warning | BGM | Onondaga | 3 hr |
| Sep 1, 7:05 PM EDT | Flash Flood Warning | OKX | Richmond | 82 min |
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.