National Weather ServiceNew YorkFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in New York
The National Weather Service issued 97 flash flood warnings for New York in 2025 and 92 a year on average in 2008-2025; in 2021-2025 it had the 19th most of any state. 2026 through September: 131, 51% above the average of 87 for those months in 2008-2025. Westchester was covered most often (146 times since 2008).
How many flash flood warnings does New York get?
Every flash flood warning that covered part of New York. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 131 |
| 2025 | 97 |
| 2024 | 98 |
| 2023 | 156 |
| 2022 | 37 |
| 2021 | 145 |
| 2020 | 65 |
| 2019 | 65 |
| 2018 | 99 |
| 2017 | 76 |
| 2016 | 33 |
| 2015 | 75 |
| 2014 | 111 |
| 2013 | 129 |
| 2012 | 41 |
| 2011 | 183 |
| 2010 | 54 |
| 2009 | 98 |
| 2008 | 96 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does New York get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in New York?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Westchester | 146 | 49 | September 13, 2026 |
| Queens | 124 | 27 | August 27, 2026 |
| Broome | 116 | 28 | August 3, 2026 |
| Delaware | 106 | 32 | August 28, 2026 |
| Kings | 106 | 25 | August 27, 2026 |
| Rockland | 105 | 29 | September 13, 2026 |
| Chenango | 104 | 28 | August 3, 2026 |
| Orange | 100 | 24 | July 28, 2026 |
| Nassau | 98 | 21 | August 27, 2026 |
| Bronx | 94 | 24 | August 27, 2026 |
| Suffolk | 93 | 20 | August 13, 2026 |
| Cattaraugus | 90 | 15 | September 3, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flash flood warnings for New York in AreaZine's record
NWS BuffaloWarningSeptember 13, 2026
Flash Flood Warning: Niagara, NY
Expired 7:45 p.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield, Middlesex, New Haven and 3 more, CT and NY
Expired 12:00 p.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Bergen and Rockland, NJ and NY
Expired 11:15 a.m. EDT, September 13, 2026
NWS UptonWarningSeptember 13, 2026
Flash Flood Warning: Fairfield and Westchester, CT and NY
Expired 10:30 a.m. EDT, September 13, 2026
NWS BuffaloWarningSeptember 3, 2026
Flash Flood Warning: Erie, Livingston and Wyoming County, NY
Expired 2:15 a.m. EDT, September 4, 2026
NWS BuffaloWarningSeptember 3, 2026
Flash Flood Warning: Erie and Wyoming County, NY
Expired 12:45 a.m. EDT, September 4, 2026
NWS BinghamtonWarningSeptember 2, 2026
Flash Flood Warning: Steuben, NY
Expired 1:15 a.m. EDT, September 3, 2026
NWS BuffaloWarningSeptember 2, 2026
Flash Flood Warning: Allegany and Cattaraugus, NY
Expired 12:45 a.m. EDT, September 3, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flash flood warning?
A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in New York.