Alert archive / New York / Severe Thunderstorm Watches / 2021
Severe Thunderstorm Watches in New York, September 2021
4 severe thunderstorm watches 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 watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in September 2021. Tap one for its archive.
- Severe Thunderstorm Watches
- 4
- Busiest day
- September 15, 20212 severe thunderstorm watches
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 8, 7:54 PM EDT | Severe Thunderstorm Watch | SPC | Columbia, Dutchess, Greene, Orange, Putnam, Rockland and 2 more | 4 hr |
| Sep 12, 10:25 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Cattaraugus, Chautauqua, Chemung, Erie, Genesee and 7 more | 4 hr |
| Sep 15, 11:55 AM EDT | Severe Thunderstorm Watch | SPC | Albany, Broome, Chemung, Chenango, Columbia, Delaware and 18 more | 8 hr |
| Sep 15, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | Dutchess, Orange, Putnam | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Columbia County2
- Dutchess County2
- Greene County2
- Orange County2
- Putnam County2
- Sullivan County2
- Ulster County2
- Chemung County2
- Rockland County1
- Allegany County1
- Cattaraugus County1
- Chautauqua County1
- Erie County1
- Genesee County1
- Livingston County1
- Ontario County1
- Schuyler County1
- Seneca County1
- Steuben County1
- Wyoming County1
- Yates County1
- Albany County1
- Broome County1
- Chenango County1
- Delaware County1
- Essex County1
- Fulton County1
- Hamilton County1
- Herkimer County1
- Madison County1
- Montgomery County1
- Oneida County1
- Otsego County1
- Rensselaer County1
- Saratoga County1
- Schenectady County1
- Schoharie County1
- Tioga County1
- Warren County1
- Washington 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. Warning verification from the Mesonet's Cow. Rebuilt daily.