Alert archive / New York / Severe Thunderstorm Warnings / 2021
Severe Thunderstorm Warnings in New York, September 2021
48 severe thunderstorm 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in September 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 48
- Busiest day
- September 15, 202116 severe thunderstorm 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, 8:32 PM EDT | Severe Thunderstorm Warning | OKX | New York, Richmond | 43 min |
| Sep 1, 9:03 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, Nassau, New York, Queens, Westchester | 42 min |
| Sep 1, 9:25 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, Nassau, New York, Queens, Rockland and 1 more | 65 min |
| Sep 1, 9:57 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Nassau, Queens | 48 min |
| Sep 1, 10:20 PM EDT | Severe Thunderstorm Warning | OKX | Westchester | 55 min |
| Sep 1, 10:30 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Suffolk | 45 min |
| Sep 1, 10:44 PM EDT | Severe Thunderstorm Warning | OKX | Nassau | 46 min |
| Sep 1, 11:11 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 64 min |
| Sep 2, 12:13 AM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 92 min |
| Sep 6, 11:15 AM EDT | Severe Thunderstorm Warning | ALY | Fulton, Herkimer, Montgomery | 45 min |
| Sep 8, 5:02 PM EDT | Severe Thunderstorm Warning | BGM | Otsego | 43 min |
| Sep 8, 5:49 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 41 min |
| Sep 8, 6:11 PM EDT | Severe Thunderstorm Warning | ALY | Warren | 34 min |
| Sep 8, 6:33 PM EDT | Severe Thunderstorm Warning | ALY | Warren, Washington | 42 min |
| Sep 8, 6:51 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Washington | 39 min |
| Sep 8, 7:16 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer, Saratoga, Washington | 44 min |
| Sep 8, 7:25 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 55 min |
| Sep 8, 7:34 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 56 min |
| Sep 8, 7:37 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Columbia, Greene, Rensselaer | 53 min |
| Sep 8, 7:51 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer, Saratoga | 54 min |
| Sep 8, 8:18 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene, Ulster | 42 min |
| Sep 8, 8:31 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene, Rensselaer | 59 min |
| Sep 8, 9:24 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Rensselaer | 21 min |
| Sep 12, 11:00 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 75 min |
| Sep 12, 11:49 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Wyoming | 86 min |
| Sep 13, 12:09 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 66 min |
| Sep 13, 12:45 AM EDT | Severe Thunderstorm Warning | BGM | Chemung, Schuyler, Seneca, Steuben, Yates | 60 min |
| Sep 13, 12:50 AM EDT | Severe Thunderstorm Warning | BUF | Livingston, Ontario | 55 min |
| Sep 13, 1:26 AM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Chemung, Cortland, Schuyler, Seneca, Steuben and 3 more | 53 min |
| Sep 13, 11:01 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 44 min |
| Sep 15, 12:15 PM EDT | Severe Thunderstorm Warning | BGM | Otsego | 45 min |
| Sep 15, 12:31 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery, Schenectady, Schoharie | 59 min |
| Sep 15, 12:43 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Delaware | 47 min |
| Sep 15, 12:46 PM EDT | Severe Thunderstorm Warning | BGM | Tioga | 44 min |
| Sep 15, 12:54 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Montgomery, Saratoga, Schenectady | 51 min |
| Sep 15, 1:09 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Delaware, Otsego | 51 min |
| Sep 15, 1:18 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Washington | 57 min |
| Sep 15, 1:22 PM EDT | Severe Thunderstorm Warning | BGM | Broome | 23 min |
| Sep 15, 1:39 PM EDT | Severe Thunderstorm Warning | BGM | Schuyler, Steuben | 51 min |
| Sep 15, 1:46 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Washington | 44 min |
| Sep 15, 2:14 PM EDT | Severe Thunderstorm Warning | BGM | Schuyler, Tompkins | 26 min |
| Sep 15, 2:15 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 60 min |
| Sep 15, 2:28 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer, Saratoga, Washington | 62 min |
| Sep 15, 3:00 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer | 60 min |
| Sep 15, 3:39 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Columbia, Greene, Rensselaer | 66 min |
| Sep 15, 4:31 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene, Rensselaer | 59 min |
| Sep 18, 4:29 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer, Saratoga | 21 min |
| Sep 23, 5:43 PM EDT | Severe Thunderstorm Warning | BGM | Delaware | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rensselaer County11
- Washington County8
- Saratoga County8
- Columbia County6
- Nassau County5
- Greene County5
- Albany County4
- Schuyler County4
- New York County3
- Kings County3
- Queens County3
- Westchester County3
- Suffolk County3
- Montgomery County3
- Otsego County3
- Cattaraugus County3
- Erie County3
- Steuben County3
- Delaware County3
- Bronx County2
- Fulton County2
- Warren County2
- Chautauqua County2
- Allegany County2
- Livingston County2
- Wyoming County2
- Chemung County2
- Seneca County2
- Yates County2
- Tioga County2
- Tompkins County2
- Schenectady County2
- Broome County2
- Chenango County2
- Richmond County1
- Rockland County1
- Herkimer County1
- Essex County1
- Ulster County1
- Genesee 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.