Alert archive / New York / Mesoscale Discussions
Mesoscale Discussions in New York, 2021
118 mesoscale discussions in 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Mesoscale Discussions
- 118
- Busiest month
- July37 mesoscale discussions
- Busiest day
- June 21, 20215 mesoscale discussions
Over time
By month
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 |
|---|---|---|---|---|
| Jan 16, 4:33 AM EST | Mesoscale Discussion | SPC | Essex, Hamilton, Saratoga, Warren, Washington | 4 hr |
| Feb 1, 7:13 AM EST | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 5 more | 6 hr |
| Feb 1, 1:43 PM EST | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 6 hr |
| Feb 1, 7:27 PM EST | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Greene, New York, Orange and 5 more | 6 hr |
| Feb 7, 11:40 AM EST | Mesoscale Discussion | SPC | Suffolk | 4 hr |
| Feb 15, 8:06 PM EST | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Franklin and 18 more | 5 hr |
| Feb 15, 9:16 PM EST | Mesoscale Discussion | SPC | Orange, Sullivan | 5 hr |
| Feb 16, 2:51 AM EST | Mesoscale Discussion | SPC | Albany, Columbia, Greene, Montgomery, Rensselaer, Schenectady and 1 more | 4 hr |
| Feb 18, 9:47 AM EST | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 4 hr |
| Mar 26, 10:13 AM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 4 more | 2 hr |
| Mar 26, 1:33 PM EDT | Mesoscale Discussion | SPC | Saratoga, Washington | 87 min |
| Mar 28, 7:05 PM EDT | Mesoscale Discussion | SPC | Richmond | 115 min |
| Apr 21, 11:49 AM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Greene, Kings, Nassau and 9 more | 2 hr |
| Apr 21, 2:56 PM EDT | Mesoscale Discussion | SPC | Nassau, Suffolk | 94 min |
| Apr 28, 1:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Cortland and 14 more | 114 min |
| May 23, 1:20 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chemung, Chenango, Columbia and 21 more | 115 min |
| May 26, 12:16 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chautauqua and 32 more | 119 min |
| May 26, 2:07 PM EDT | Mesoscale Discussion | SPC | Albany, Chenango, Cortland, Fulton, Greene, Madison and 6 more | 83 min |
| May 26, 4:41 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Kings and 12 more | 64 min |
| May 26, 6:34 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Richmond | 116 min |
| Jun 4, 2:26 PM EDT | Mesoscale Discussion | SPC | Richmond, Rockland | 94 min |
| Jun 4, 4:12 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond | 93 min |
| Jun 5, 2:33 PM EDT | Mesoscale Discussion | SPC | Essex | 117 min |
| Jun 9, 3:19 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Kings and 10 more | 116 min |
| Jun 14, 2:48 PM EDT | Mesoscale Discussion | SPC | Broome, Chenango, Delaware, Fulton, Greene, Madison and 6 more | 2 hr |
| Jun 14, 6:18 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Queens, Richmond | 117 min |
| Jun 21, 11:59 AM EDT | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua | 91 min |
| Jun 21, 12:31 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 12 more | 89 min |
| Jun 21, 3:35 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 7 more | 85 min |
| Jun 21, 3:47 PM EDT | Mesoscale Discussion | SPC | Allegany, Livingston, Ontario, Steuben, Wayne, Yates | 58 min |
| Jun 21, 6:50 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Columbia, Cortland, Delaware and 23 more | 55 min |
| Jun 21, 9:23 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Greene, Orange, Putnam and 3 more | 97 min |
| Jun 29, 2:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Cortland and 14 more | 117 min |
| Jun 29, 7:17 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Fulton, Greene, Montgomery, Rensselaer and 4 more | 88 min |
| Jun 30, 11:04 AM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cayuga, Chemung, Chenango and 29 more | 116 min |
| Jun 30, 1:52 PM EDT | Mesoscale Discussion | SPC | Fulton, Montgomery, Saratoga, Schenectady, Warren, Washington | 83 min |
| Jun 30, 2:16 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Greene, Orange, Putnam and 2 more | 119 min |
| Jun 30, 4:48 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Greene, Schoharie, Sullivan and 1 more | 87 min |
| Jun 30, 6:58 PM EDT | Mesoscale Discussion | SPC | Bronx, Orange, Putnam, Rockland, Westchester | 92 min |
| Jul 2, 3:13 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 20 more | 92 min |
| Jul 5, 9:14 PM EDT | Mesoscale Discussion | SPC | Cayuga, Jefferson, Lewis, Monroe, Oneida, Onondaga and 5 more | 2 hr |
| Jul 6, 12:33 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chemung, Chenango, Columbia and 26 more | 2 hr |
| Jul 6, 4:23 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 9 more | 97 min |
| Jul 6, 5:25 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Queens and 3 more | 95 min |
| Jul 7, 1:50 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 18 more | 115 min |
| Jul 7, 4:48 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chemung, Chenango, Columbia and 21 more | 87 min |
| Jul 7, 7:11 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cattaraugus, Chemung, Chenango and 14 more | 2 hr |
| Jul 8, 12:00 AM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Greene, Orange, Putnam and 6 more | 60 min |
| Jul 8, 1:31 PM EDT | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua, Erie, Wyoming | 2 hr |
| Jul 8, 1:44 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more | 3 hr |
| Jul 8, 4:36 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 5 more | 114 min |
| Jul 8, 10:01 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond | 59 min |
| Jul 9, 3:28 AM EDT | Mesoscale Discussion | SPC | Richmond | 2 hr |
| Jul 9, 4:35 PM EDT | Mesoscale Discussion | SPC | Delaware, Orange, Sullivan | 115 min |
| Jul 12, 1:32 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond | 88 min |
| Jul 12, 7:25 PM EDT | Mesoscale Discussion | SPC | Richmond, Rockland | 2 hr |
| Jul 13, 12:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 23 more | 87 min |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 25 more | 113 min |
| Jul 13, 6:44 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 20 more | 91 min |
| Jul 13, 9:12 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Madison and 7 more | 93 min |
| Jul 16, 5:51 PM EDT | Mesoscale Discussion | SPC | Bronx, New York, Orange, Putnam, Rockland, Sullivan and 1 more | 114 min |
| Jul 17, 12:00 PM EDT | Mesoscale Discussion | SPC | Bronx, Broome, Columbia, Delaware, Dutchess, Greene and 11 more | 3 hr |
| Jul 17, 3:02 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Queens, Richmond | 88 min |
| Jul 17, 4:38 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chemung, Chenango, Columbia and 17 more | 97 min |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Columbia, Delaware, Dutchess and 10 more | 2 hr |
| Jul 17, 10:02 PM EDT | Mesoscale Discussion | SPC | Kings, Richmond | 58 min |
| Jul 20, 1:03 PM EDT | Mesoscale Discussion | SPC | Clinton, Franklin, Jefferson, Lewis, Monroe, Orleans and 2 more | 2 hr |
| Jul 20, 4:17 PM EDT | Mesoscale Discussion | SPC | Cayuga, Clinton, Essex, Franklin, Hamilton, Herkimer and 7 more | 118 min |
| Jul 20, 7:12 PM EDT | Mesoscale Discussion | SPC | Albany, Cayuga, Chenango, Cortland, Essex, Fulton and 15 more | 2 hr |
| Jul 20, 10:01 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Columbia, Delaware, Dutchess and 6 more | 59 min |
| Jul 21, 10:32 AM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 58 min |
| Jul 26, 6:03 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, St. Lawrence | 87 min |
| Jul 27, 10:33 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Erie, Genesee, Livingston and 9 more | 117 min |
| Jul 27, 2:01 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chemung and 29 more | 89 min |
| Jul 27, 4:36 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 12 more | 84 min |
| Jul 27, 6:09 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Columbia, Delaware, Dutchess and 10 more | 96 min |
| Aug 1, 12:27 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Cortland, Delaware and 14 more | 2 hr |
| Aug 11, 4:57 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Essex, Greene, Orange and 7 more | 93 min |
| Aug 11, 6:44 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Orange, Putnam, Queens and 3 more | 91 min |
| Aug 12, 11:03 AM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Clinton, Cortland, Delaware and 19 more | 2 hr |
| Aug 13, 2:48 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Essex and 19 more | 87 min |
| Aug 13, 7:14 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 29 more | 61 min |
| Aug 19, 12:44 AM EDT | Mesoscale Discussion | SPC | Richmond | 61 min |
| Aug 29, 1:07 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more | 83 min |
| Sep 1, 4:28 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond | 2 hr |
| Sep 1, 6:34 PM EDT | Mesoscale Discussion | SPC | Kings, New York, Queens, Richmond | 56 min |
| Sep 1, 8:32 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more | 88 min |
| Sep 1, 11:20 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Suffolk and 1 more | 85 min |
| Sep 6, 7:34 AM EDT | Mesoscale Discussion | SPC | Essex, Franklin, Hamilton, Herkimer, Jefferson, Lewis and 5 more | 2 hr |
| Sep 6, 10:47 AM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 6 more | 118 min |
| Sep 8, 4:40 AM EDT | Mesoscale Discussion | SPC | Erie, Niagara | 3 hr |
| Sep 8, 4:15 PM EDT | Mesoscale Discussion | SPC | Albany, Delaware, Greene, Orange, Schoharie, Sullivan and 1 more | 2 hr |
| Sep 8, 6:30 PM EDT | Mesoscale Discussion | SPC | Saratoga, Washington | 90 min |
| Sep 8, 9:25 PM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess, Greene, Orange, Putnam, Rockland and 2 more | 95 min |
| Sep 12, 9:14 PM EDT | Mesoscale Discussion | SPC | Erie | 91 min |
| Sep 13, 12:26 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Chemung, Chenango, Cortland, Delaware and 9 more | 94 min |
| Sep 13, 4:11 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua | 2 hr |
| Sep 15, 10:33 AM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Columbia, Cortland and 20 more | 2 hr |
| Sep 15, 3:04 PM EDT | Mesoscale Discussion | SPC | Dutchess, Orange, Putnam, Rockland, Westchester | 116 min |
| Sep 15, 4:38 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Greene, Rensselaer, Schenectady and 3 more | 67 min |
| Sep 15, 8:11 PM EDT | Mesoscale Discussion | SPC | Dutchess, Orange, Putnam | 2 hr |
| Sep 22, 6:13 PM EDT | Mesoscale Discussion | SPC | Chautauqua | 92 min |
| Sep 23, 1:29 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 61 min |
| Oct 16, 11:06 AM EDT | Mesoscale Discussion | SPC | Broome, Chenango, Cortland, Delaware, Madison, Otsego and 2 more | 114 min |
| Oct 16, 12:09 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Essex, Fulton, Hamilton, Montgomery and 6 more | 2 hr |
| Oct 16, 2:55 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Dutchess, Greene, Rensselaer and 7 more | 95 min |
| Oct 16, 5:39 PM EDT | Mesoscale Discussion | SPC | Nassau, Suffolk | 2 hr |
| Oct 21, 2:39 PM EDT | Mesoscale Discussion | SPC | Chautauqua, Erie | 3 hr |
| Nov 12, 12:24 PM EST | Mesoscale Discussion | SPC | Suffolk | 96 min |
| Nov 13, 12:07 PM EST | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 113 min |
| Nov 13, 2:06 PM EST | Mesoscale Discussion | SPC | Nassau, Suffolk | 84 min |
| Nov 26, 4:42 PM EST | Mesoscale Discussion | SPC | Columbia, Rensselaer, Saratoga, Washington | 3 hr |
| Nov 28, 6:02 PM EST | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Steuben | 5 hr |
| Dec 11, 7:29 PM EST | Mesoscale Discussion | SPC | Bronx, Kings, New York, Orange, Queens, Richmond and 3 more | 3 hr |
| Dec 18, 10:52 AM EST | Mesoscale Discussion | SPC | Allegany, Broome, Cayuga, Chemung, Chenango, Columbia and 17 more | 3 hr |
| Dec 18, 2:54 PM EST | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Fulton, Greene, Montgomery and 8 more | 5 hr |
| Dec 25, 5:44 AM EST | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Rensselaer, Warren, Washington | 5 hr |
| Dec 25, 5:44 PM EST | Mesoscale Discussion | SPC | Essex, Fulton, Hamilton, Herkimer, Jefferson, Lewis and 7 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Orange County40
- Greene County39
- Richmond County37
- Rockland County37
- Bronx County35
- New York County35
- Sullivan County35
- Albany County35
- Columbia County34
- Putnam County33
- Ulster County33
- Kings County32
- Westchester County31
- Delaware County31
- Dutchess County30
- Schoharie County30
- Queens County29
- Rensselaer County29
- Nassau County27
- Broome County27
- Chenango County26
- Saratoga County25
- Schenectady County25
- Washington County24
- Tioga County24
- Oneida County23
- Montgomery County23
- Chemung County22
- Cortland County22
- Otsego County22
- Steuben County21
- Essex County20
- Suffolk County20
- Schuyler County20
- Tompkins County20
- Fulton County20
- Madison County20
- Hamilton County18
- Allegany County18
- Cayuga County18
22 more counties
- Lewis County18
- Warren County17
- Onondaga County17
- Yates County17
- Cattaraugus County16
- Herkimer County16
- Oswego County16
- Seneca County16
- Livingston County15
- Ontario County15
- Erie County14
- Chautauqua County13
- Wayne County13
- Wyoming County13
- Monroe County12
- Franklin County11
- Genesee County11
- Jefferson County11
- St. Lawrence County10
- Clinton County10
- Orleans County6
- Niagara County5
The busiest days
Days with the most alerts issued, by UTC date.
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.