Alert archive / New York / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in New York, August 2020
130 severe thunderstorm warnings in August 2020. 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 August 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 130
- Busiest day
- August 27, 202046 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 |
|---|---|---|---|---|
| Aug 2, 2:35 PM EDT | Severe Thunderstorm Warning | BUF | Lewis, Oswego | 55 min |
| Aug 2, 3:13 PM EDT | Severe Thunderstorm Warning | ALY | Hamilton, Herkimer | 62 min |
| Aug 2, 3:52 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, St. Lawrence | 38 min |
| Aug 2, 5:22 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess | 53 min |
| Aug 2, 7:36 PM EDT | Severe Thunderstorm Warning | ALY | Hamilton | 39 min |
| Aug 2, 7:39 PM EDT | Severe Thunderstorm Warning | BTV | Essex, Franklin | 51 min |
| Aug 2, 8:33 PM EDT | Severe Thunderstorm Warning | ALY | Hamilton | 57 min |
| Aug 2, 8:42 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 14 min |
| Aug 2, 8:54 PM EDT | Severe Thunderstorm Warning | BTV | Essex, Franklin | 51 min |
| Aug 3, 7:05 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 55 min |
| Aug 3, 8:56 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Nassau, Queens, Suffolk | 49 min |
| Aug 3, 9:45 PM EDT | Severe Thunderstorm Warning | OKX | Putnam, Westchester | 60 min |
| Aug 4, 9:21 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 39 min |
| Aug 10, 3:24 PM EDT | Severe Thunderstorm Warning | ALY | Warren, Washington | 66 min |
| Aug 10, 3:58 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Dutchess, Greene, Ulster | 62 min |
| Aug 10, 5:04 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 26 min |
| Aug 10, 5:07 PM EDT | Severe Thunderstorm Warning | ALY | Columbia | 53 min |
| Aug 10, 5:11 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 64 min |
| Aug 10, 5:38 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Dutchess, Greene, Ulster | 52 min |
| Aug 11, 7:33 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Delaware, Otsego | 57 min |
| Aug 11, 8:00 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 60 min |
| Aug 11, 8:09 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery, Schenectady, Schoharie | 36 min |
| Aug 11, 8:28 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Delaware, Otsego | 62 min |
| Aug 11, 8:57 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Greene, Schoharie | 33 min |
| Aug 12, 3:51 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, New York | 39 min |
| Aug 15, 7:17 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 45 min |
| Aug 15, 7:27 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 63 min |
| Aug 15, 7:52 PM EDT | Severe Thunderstorm Warning | BUF | Niagara | 53 min |
| Aug 17, 11:37 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 23 min |
| Aug 17, 11:57 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 33 min |
| Aug 22, 1:39 PM EDT | Severe Thunderstorm Warning | ALY | Columbia | 51 min |
| Aug 23, 12:48 PM EDT | Severe Thunderstorm Warning | BGM | Tioga | 16 min |
| Aug 23, 1:25 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Tioga, Tompkins | 35 min |
| Aug 23, 2:39 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 66 min |
| Aug 23, 3:08 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 67 min |
| Aug 23, 3:47 PM EDT | Severe Thunderstorm Warning | ALY | Albany | 47 min |
| Aug 23, 3:54 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Madison | 36 min |
| Aug 23, 4:31 PM EDT | Severe Thunderstorm Warning | ALY | Warren, Washington | 29 min |
| Aug 23, 4:38 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 52 min |
| Aug 23, 4:43 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Schenectady, Schoharie | 62 min |
| Aug 23, 4:53 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery, Schenectady | 45 min |
| Aug 24, 2:07 PM EDT | Severe Thunderstorm Warning | BTV | Clinton | 38 min |
| Aug 24, 2:53 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Tioga | 52 min |
| Aug 24, 3:17 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 29 min |
| Aug 24, 3:30 PM EDT | Severe Thunderstorm Warning | BGM | Tioga | 43 min |
| Aug 24, 4:00 PM EDT | Severe Thunderstorm Warning | ALY | Warren, Washington | 45 min |
| Aug 24, 4:43 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 62 min |
| Aug 24, 6:45 PM EDT | Severe Thunderstorm Warning | ALY | Washington | 60 min |
| Aug 24, 8:47 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Rensselaer | 33 min |
| Aug 25, 1:59 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 61 min |
| Aug 25, 2:27 AM EDT | Severe Thunderstorm Warning | BUF | Genesee, Monroe, Niagara, Orleans | 63 min |
| Aug 25, 3:45 AM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 60 min |
| Aug 25, 1:08 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Cortland, Seneca, Tompkins | 52 min |
| Aug 25, 1:49 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Cortland, Tioga, Tompkins | 41 min |
| Aug 25, 2:15 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Otsego | 45 min |
| Aug 25, 2:29 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Delaware | 61 min |
| Aug 25, 2:57 PM EDT | Severe Thunderstorm Warning | BGM | Delaware | 33 min |
| Aug 25, 4:49 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess | 26 min |
| Aug 25, 4:52 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Rockland | 38 min |
| Aug 25, 5:14 PM EDT | Severe Thunderstorm Warning | OKX | Putnam, Westchester | 46 min |
| Aug 25, 5:25 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Rockland, Westchester | 50 min |
| Aug 25, 6:00 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, Nassau, New York, Queens, Westchester | 45 min |
| Aug 25, 6:22 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 38 min |
| Aug 25, 6:26 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Nassau, Queens | 32 min |
| Aug 27, 8:37 AM EDT | Severe Thunderstorm Warning | BGM | Chenango, Cortland, Madison, Onondaga | 53 min |
| Aug 27, 9:06 AM EDT | Severe Thunderstorm Warning | BGM | Chenango, Delaware, Madison, Otsego | 54 min |
| Aug 27, 1:03 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Cortland, Onondaga | 42 min |
| Aug 27, 1:44 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Cortland | 46 min |
| Aug 27, 1:50 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Greene, Schoharie, Ulster | 40 min |
| Aug 27, 2:13 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Cortland, Tompkins | 47 min |
| Aug 27, 2:26 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Delaware | 49 min |
| Aug 27, 2:31 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Dutchess, Greene, Ulster | 44 min |
| Aug 27, 2:31 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Wyoming | 59 min |
| Aug 27, 2:41 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 64 min |
| Aug 27, 2:55 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara | 20 min |
| Aug 27, 2:59 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Delaware | 46 min |
| Aug 27, 3:02 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Ontario | 58 min |
| Aug 27, 3:10 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Sullivan | 65 min |
| Aug 27, 3:13 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Onondaga, Seneca | 47 min |
| Aug 27, 3:16 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara | 29 min |
| Aug 27, 3:17 PM EDT | Severe Thunderstorm Warning | OKX | Putnam | 58 min |
| Aug 27, 3:29 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Wyoming | 61 min |
| Aug 27, 3:40 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess, Ulster | 32 min |
| Aug 27, 3:43 PM EDT | Severe Thunderstorm Warning | BGM | Schuyler, Seneca, Steuben, Yates | 47 min |
| Aug 27, 3:46 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Cortland, Tioga, Tompkins | 29 min |
| Aug 27, 3:46 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Delaware, Sullivan | 59 min |
| Aug 27, 3:52 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario | 68 min |
| Aug 27, 4:01 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie, Wyoming | 51 min |
| Aug 27, 4:06 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 54 min |
| Aug 27, 4:11 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Cortland, Tioga | 49 min |
| Aug 27, 4:11 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 64 min |
| Aug 27, 4:12 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 48 min |
| Aug 27, 4:21 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 24 min |
| Aug 27, 4:27 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Putnam, Westchester | 48 min |
| Aug 27, 4:28 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario, Wyoming | 77 min |
| Aug 27, 4:30 PM EDT | Severe Thunderstorm Warning | BGM | Chemung, Schuyler, Tioga, Tompkins | 45 min |
| Aug 27, 4:49 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Putnam, Rockland, Westchester | 41 min |
| Aug 27, 4:52 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Tioga | 38 min |
| Aug 27, 4:56 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Chenango, Delaware, Sullivan | 64 min |
| Aug 27, 4:59 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario | 46 min |
| Aug 27, 5:12 PM EDT | Severe Thunderstorm Warning | OKX | Westchester | 48 min |
| Aug 27, 5:23 PM EDT | Severe Thunderstorm Warning | BGM | Broome, Delaware, Sullivan | 37 min |
| Aug 27, 5:29 PM EDT | Severe Thunderstorm Warning | OKX | Putnam, Westchester | 46 min |
| Aug 27, 5:50 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Sullivan | 55 min |
| Aug 27, 5:59 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 27 min |
| Aug 27, 6:03 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 57 min |
| Aug 27, 6:29 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess | 31 min |
| Aug 27, 6:54 PM EDT | Severe Thunderstorm Warning | OKX | Putnam, Westchester | 51 min |
| Aug 27, 7:21 PM EDT | Severe Thunderstorm Warning | OKX | Rockland, Westchester | 39 min |
| Aug 27, 7:34 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, New York, Queens, Westchester | 41 min |
| Aug 27, 8:06 PM EDT | Severe Thunderstorm Warning | OKX | Suffolk | 39 min |
| Aug 27, 8:14 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, Nassau, New York, Queens, Suffolk | 31 min |
| Aug 29, 2:42 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Hamilton, Herkimer | 63 min |
| Aug 29, 3:51 PM EDT | Severe Thunderstorm Warning | ALY | Fulton, Hamilton, Saratoga | 54 min |
| Aug 29, 4:31 PM EDT | Severe Thunderstorm Warning | BGM | Otsego | 29 min |
| Aug 29, 4:54 PM EDT | Severe Thunderstorm Warning | ALY | Saratoga, Warren, Washington | 45 min |
| Aug 29, 5:46 PM EDT | Severe Thunderstorm Warning | BTV | Clinton | 45 min |
| Aug 29, 5:59 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Otsego | 31 min |
| Aug 29, 6:12 PM EDT | Severe Thunderstorm Warning | ALY | Schoharie | 52 min |
| Aug 29, 6:19 PM EDT | Severe Thunderstorm Warning | ALY | Montgomery, Schenectady, Schoharie | 56 min |
| Aug 29, 6:29 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Sullivan | 46 min |
| Aug 29, 6:32 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer | 58 min |
| Aug 29, 6:34 PM EDT | Severe Thunderstorm Warning | ALY | Warren, Washington | 31 min |
| Aug 29, 6:48 PM EDT | Severe Thunderstorm Warning | ALY | Albany, Saratoga, Schenectady | 57 min |
| Aug 29, 7:01 PM EDT | Severe Thunderstorm Warning | ALY | Greene, Schoharie, Ulster | 44 min |
| Aug 29, 7:13 PM EDT | Severe Thunderstorm Warning | ALY | Rensselaer | 47 min |
| Aug 29, 7:40 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Rensselaer, Washington | 65 min |
| Aug 29, 7:46 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 39 min |
| Aug 29, 7:57 PM EDT | Severe Thunderstorm Warning | ALY | Columbia, Dutchess | 63 min |
| Aug 29, 8:09 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess, Ulster | 66 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Delaware County15
- Broome County14
- Chenango County12
- Westchester County11
- Sullivan County10
- Dutchess County9
- Washington County9
- Tioga County9
- Erie County8
- Columbia County8
- Albany County8
- Cortland County8
- Monroe County7
- Putnam County7
- Ulster County7
- Rensselaer County7
- Schoharie County7
- Genesee County7
- Essex County6
- Ontario County6
- Suffolk County6
- Greene County6
- Otsego County6
- Tompkins County6
- Livingston County6
- Hamilton County5
- Kings County5
- Queens County5
- Warren County5
- Schenectady County5
- Niagara County5
- Orange County5
- Wyoming County5
- Nassau County4
- Bronx County4
- New York County4
- Rockland County4
- Franklin County3
- Montgomery County3
- Madison County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.