Alert archive / New York / Flash Flood Warnings / 2021
Flash Flood Warnings in New York, September 2021
22 flash flood warnings in September 2021. 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 in September 2021. Tap one for its archive.
- Flash Flood Warnings
- 22
- Busiest day
- September 2, 20217 flash flood warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 1:00 PM EDT | Flash Flood Warning | BGM | Sullivan | 11 hr |
| Sep 1, 3:34 PM EDT | Flash Flood Warning | OKX | Orange | 8 hr |
| Sep 1, 4:00 PM EDT | Flash Flood Warning | BGM | Sullivan | 10 hr |
| Sep 1, 5:54 PM EDT | Flash Flood Warning | OKX | Richmond | 6 hr |
| Sep 1, 5:58 PM EDT | Flash Flood Warning | ALY | Dutchess, Ulster | 6 hr |
| Sep 1, 6:51 PM EDT | Flash Flood Warning | OKX | Bronx, Kings, Nassau, New York, Putnam, Queens and 3 more | 5 hr |
| Sep 1, 9:28 PM EDT | Flash Flood Warning | OKX | Bronx, Kings, New York, Queens, Westchester | 2 hr |
| Sep 1, 10:08 PM EDT | Flash Flood Warning | OKX | Nassau, Westchester | 4 hr |
| Sep 1, 11:13 PM EDT | Flash Flood Warning | OKX | Suffolk | 6 hr |
| Sep 1, 11:38 PM EDT | Flash Flood Warning | ALY | Dutchess | 3 hr |
| Sep 1, 11:46 PM EDT | Flash Flood Warning | BGM | Sullivan | 74 min |
| Sep 1, 11:54 PM EDT | Flash Flood Warning | OKX | Bronx, Kings, New York, Queens, Richmond, Westchester | 3 hr |
| Sep 2, 12:25 AM EDT | Flash Flood Warning | OKX | Nassau, Queens, Suffolk | 4 hr |
| Sep 8, 8:48 PM EDT | Flash Flood Warning | ALY | Greene, Ulster | 3 hr |
| Sep 13, 12:25 AM EDT | Flash Flood Warning | BUF | Erie, Genesee, Wyoming | 3 hr |
| Sep 15, 1:21 PM EDT | Flash Flood Warning | ALY | Fulton, Montgomery | 3 hr |
| Sep 15, 1:37 PM EDT | Flash Flood Warning | ALY | Fulton, Montgomery, Saratoga, Schenectady | 3 hr |
| Sep 15, 1:48 PM EDT | Flash Flood Warning | ALY | Saratoga, Washington | 3 hr |
| Sep 15, 2:48 PM EDT | Flash Flood Warning | ALY | Rensselaer, Saratoga, Schenectady, Washington | 3 hr |
| Sep 15, 3:44 PM EDT | Flash Flood Warning | BGM | Otsego | 2 hr |
| Sep 15, 5:26 PM EDT | Flash Flood Warning | ALY | Ulster | 2 hr |
| Sep 15, 5:48 PM EDT | Flash Flood Warning | ALY | Columbia, Greene | 97 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Queens County4
- Westchester County4
- Sullivan County3
- Ulster County3
- Bronx County3
- Kings County3
- Nassau County3
- New York County3
- Suffolk County3
- Saratoga County3
- Richmond County2
- Dutchess County2
- Greene County2
- Fulton County2
- Montgomery County2
- Schenectady County2
- Washington County2
- Orange County1
- Putnam County1
- Rockland County1
- Erie County1
- Genesee County1
- Wyoming County1
- Rensselaer County1
- Otsego County1
- Columbia County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.