Alert archive / New York / Mesoscale Discussions
Mesoscale Discussions in New York, 2020
104 mesoscale discussions in 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Mesoscale Discussions
- 104
- Busiest month
- August23 mesoscale discussions
- Busiest day
- May 15, 20205 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 8, 6:37 AM EST | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 27 more | 6 hr |
| Jan 12, 2:32 AM EST | Mesoscale Discussion | SPC | Clinton, Franklin, St. Lawrence | 5 hr |
| Feb 6, 7:48 PM EST | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua, Erie, Genesee, Livingston, Monroe and 3 more | 4 hr |
| Feb 7, 5:32 AM EST | Mesoscale Discussion | SPC | Allegany | 3 hr |
| Feb 7, 9:58 AM EST | Mesoscale Discussion | SPC | Clinton, Essex, Fulton, Hamilton, Herkimer, Montgomery and 5 more | 4 hr |
| Feb 7, 3:03 PM EST | Mesoscale Discussion | SPC | Essex | 4 hr |
| Mar 3, 6:50 PM EST | Mesoscale Discussion | SPC | Richmond | 2 hr |
| Mar 20, 2:47 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 10 more | 88 min |
| Mar 23, 3:26 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Essex, Fulton, Greene, Hamilton and 9 more | 6 hr |
| Mar 29, 10:58 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more | 2 hr |
| Mar 29, 2:21 PM EDT | Mesoscale Discussion | SPC | Allegany, Cayuga, Genesee, Jefferson, Livingston, Monroe and 9 more | 84 min |
| Apr 9, 11:09 AM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 66 min |
| Apr 9, 2:40 PM EDT | Mesoscale Discussion | SPC | Nassau, Suffolk | 65 min |
| Apr 13, 2:42 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Cayuga, Chemung, Chenango and 31 more | 93 min |
| Apr 17, 6:55 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Chemung, Chenango, Cortland, Delaware and 9 more | 4 hr |
| Apr 21, 12:23 PM EDT | Mesoscale Discussion | SPC | Richmond | 2 hr |
| Apr 21, 3:29 PM EDT | Mesoscale Discussion | SPC | Suffolk | 91 min |
| May 15, 1:52 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Ontario and 3 more | 83 min |
| May 15, 2:59 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 25 more | 91 min |
| May 15, 4:58 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 22 more | 92 min |
| May 15, 6:59 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Greene, Rensselaer, Saratoga, Schenectady and 3 more | 2 hr |
| May 15, 7:47 PM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Tioga | 58 min |
| May 15, 9:09 PM EDT | Mesoscale Discussion | SPC | Dutchess, Orange, Putnam, Rockland, Westchester | 66 min |
| May 29, 10:47 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 20 more | 118 min |
| May 29, 12:27 PM EDT | Mesoscale Discussion | SPC | Delaware, Greene, Orange, Sullivan, Ulster | 63 min |
| May 29, 3:03 PM EDT | Mesoscale Discussion | SPC | Sullivan | 87 min |
| May 29, 4:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Schuyler, Steuben | 2 hr |
| May 29, 8:01 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Columbia, Delaware, Dutchess and 21 more | 119 min |
| Jun 2, 9:26 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more | 3 hr |
| Jun 3, 5:12 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 3 more | 2 hr |
| Jun 3, 6:58 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Queens and 4 more | 92 min |
| Jun 6, 10:46 AM EDT | Mesoscale Discussion | SPC | Rensselaer | 119 min |
| Jun 10, 1:39 PM EDT | Mesoscale Discussion | SPC | Broome, Delaware, Sullivan | 2 hr |
| Jun 22, 1:58 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua | 3 hr |
| Jun 27, 12:34 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 2 hr |
| Jun 28, 12:37 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chenango, Columbia, Delaware and 23 more | 113 min |
| Jun 28, 4:08 PM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess, Greene, Orange, Putnam, Rockland and 3 more | 2 hr |
| Jun 28, 7:20 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 55 min |
| Jun 29, 2:48 PM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess | 117 min |
| Jul 2, 2:41 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Warren, Washington | 109 min |
| Jul 2, 6:30 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Orange and 8 more | 2 hr |
| Jul 6, 4:33 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Queens, Richmond | 117 min |
| Jul 8, 1:01 PM EDT | Mesoscale Discussion | SPC | Essex, Fulton, Hamilton, Saratoga, Warren, Washington | 119 min |
| Jul 8, 1:29 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Livingston and 8 more | 91 min |
| Jul 8, 4:01 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Greene, Rensselaer, Schoharie | 89 min |
| Jul 11, 2:06 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Delaware and 15 more | 84 min |
| Jul 16, 12:18 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 1 more | 117 min |
| Jul 16, 3:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 5 more | 84 min |
| Jul 16, 7:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Erie, Genesee, Livingston, Monroe and 3 more | 54 min |
| Jul 19, 12:17 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 6 more | 88 min |
| Jul 19, 3:11 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chemung, Genesee, Livingston and 11 more | 94 min |
| Jul 19, 5:52 PM EDT | Mesoscale Discussion | SPC | Broome, Chenango, Delaware, Greene, Orange, Otsego and 4 more | 83 min |
| Jul 22, 1:45 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Fulton and 18 more | 2 hr |
| Jul 22, 4:55 PM EDT | Mesoscale Discussion | SPC | Kings, New York, Richmond | 95 min |
| Jul 22, 7:01 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, Nassau, New York and 8 more | 119 min |
| Jul 23, 12:05 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Columbia, Delaware and 13 more | 115 min |
| Jul 23, 4:28 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 8 more | 2 hr |
| Jul 23, 6:48 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Greene, Kings, Nassau and 10 more | 57 min |
| Jul 27, 4:47 PM EDT | Mesoscale Discussion | SPC | Clinton, Franklin, St. Lawrence | 2 hr |
| Jul 29, 1:36 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 15 more | 84 min |
| Jul 30, 1:20 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Columbia, Delaware, Dutchess and 22 more | 115 min |
| Aug 2, 2:00 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Columbia, Cortland, Delaware and 27 more | 2 hr |
| Aug 2, 6:45 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Delaware, Dutchess, Essex and 20 more | 2 hr |
| Aug 4, 6:45 AM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 3 hr |
| Aug 4, 11:13 AM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 92 min |
| Aug 4, 3:05 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Greene, Putnam, Rensselaer and 2 more | 85 min |
| Aug 21, 2:26 PM EDT | Mesoscale Discussion | SPC | Hamilton, Herkimer, Lewis, Warren, Washington | 2 hr |
| Aug 22, 1:18 PM EDT | Mesoscale Discussion | SPC | Rensselaer | 87 min |
| Aug 23, 12:39 PM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Chenango, Cortland, Onondaga, Schuyler and 4 more | 96 min |
| Aug 23, 2:08 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Rensselaer, Saratoga, Schenectady, Washington | 2 hr |
| Aug 24, 12:44 PM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Tioga | 2 hr |
| Aug 24, 2:00 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Rensselaer, Saratoga, Washington | 2 hr |
| Aug 25, 12:48 AM EDT | Mesoscale Discussion | SPC | Erie, Franklin, Genesee, Jefferson, Lewis, Monroe and 6 more | 117 min |
| Aug 25, 12:02 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chemung, Chenango, Cortland and 8 more | 118 min |
| Aug 25, 2:09 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Greene, Rensselaer, Saratoga, Schenectady and 1 more | 96 min |
| Aug 25, 6:11 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 2 hr |
| Aug 27, 9:41 AM EDT | Mesoscale Discussion | SPC | Delaware, Dutchess, Putnam, Ulster | 94 min |
| Aug 27, 12:38 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Chemung, Chenango, Columbia, Cortland and 17 more | 3 hr |
| Aug 27, 2:59 PM EDT | Mesoscale Discussion | SPC | Orange, Putnam, Rockland, Suffolk, Westchester | 61 min |
| Aug 27, 6:35 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more | 115 min |
| Aug 29, 1:36 PM EDT | Mesoscale Discussion | SPC | Albany, Chenango, Columbia, Delaware, Dutchess, Essex and 16 more | 114 min |
| Aug 29, 3:56 PM EDT | Mesoscale Discussion | SPC | Orange | 2 hr |
| Aug 29, 4:52 PM EDT | Mesoscale Discussion | SPC | Montgomery, Rensselaer, Saratoga, Schenectady, Washington | 53 min |
| Aug 29, 6:45 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Kings and 14 more | 2 hr |
| Sep 30, 5:09 AM EDT | Mesoscale Discussion | SPC | Suffolk | 96 min |
| Oct 7, 1:28 PM EDT | Mesoscale Discussion | SPC | Cayuga, Cortland, Essex, Fulton, Genesee, Hamilton and 14 more | 2 hr |
| Oct 10, 1:48 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 3 more | 87 min |
| Oct 10, 4:38 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Hamilton, Herkimer, Jefferson and 3 more | 97 min |
| Oct 10, 6:44 PM EDT | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 5 more | 2 hr |
| Nov 15, 1:16 PM EST | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Wyoming | 89 min |
| Nov 15, 3:33 PM EST | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Columbia, Delaware, Dutchess and 13 more | 2 hr |
| Nov 15, 4:20 PM EST | Mesoscale Discussion | SPC | Cayuga, Chemung, Cortland, Jefferson, Lewis, Madison and 7 more | 85 min |
| Nov 15, 6:27 PM EST | Mesoscale Discussion | SPC | Albany, Cayuga, Chenango, Cortland, Delaware, Essex and 20 more | 3 hr |
| Nov 15, 6:52 PM EST | Mesoscale Discussion | SPC | Kings, New York, Richmond | 113 min |
| Nov 15, 7:01 PM EST | Mesoscale Discussion | SPC | Bronx, Nassau, New York, Orange, Putnam, Queens and 3 more | 59 min |
| Nov 15, 9:37 PM EST | Mesoscale Discussion | SPC | Nassau, Suffolk | 113 min |
| Nov 30, 4:37 PM EST | Mesoscale Discussion | SPC | Bronx, Kings, New York, Orange, Richmond, Rockland | 53 min |
| Nov 30, 7:13 PM EST | Mesoscale Discussion | SPC | Suffolk | 2 hr |
| Dec 16, 6:48 PM EST | Mesoscale Discussion | SPC | Bronx, Columbia, Delaware, Dutchess, Greene, Kings and 10 more | 5 hr |
| Dec 16, 10:12 PM EST | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Columbia, Delaware and 13 more | 6 hr |
| Dec 17, 4:33 AM EST | Mesoscale Discussion | SPC | Albany, Delaware, Greene, Rensselaer, Schenectady, Schoharie | 6 hr |
| Dec 17, 10:05 AM EST | Mesoscale Discussion | SPC | Albany, Montgomery, Rensselaer, Saratoga, Schenectady, Schoharie and 1 more | 4 hr |
| Dec 26, 2:02 AM EST | Mesoscale Discussion | SPC | Chautauqua, Erie, Genesee, Wyoming | 6 hr |
| Dec 26, 5:08 AM EST | Mesoscale Discussion | SPC | Jefferson | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Columbia County30
- Greene County30
- Rensselaer County29
- Albany County27
- Orange County27
- Delaware County26
- Saratoga County26
- Dutchess County26
- Ulster County25
- Washington County25
- Rockland County25
- Westchester County25
- Sullivan County25
- Schenectady County24
- Schoharie County24
- Putnam County24
- Broome County22
- Richmond County22
- Bronx County22
- New York County22
- Otsego County21
- Warren County20
- Kings County20
- Nassau County20
- Chenango County19
- Fulton County19
- Hamilton County19
- Montgomery County19
- Tioga County19
- Suffolk County19
- Allegany County18
- Queens County18
- Chemung County17
- Herkimer County17
- Onondaga County16
- Genesee County16
- Wyoming County16
- Cortland County15
- Madison County15
- Tompkins County15
22 more counties
- Cattaraugus County15
- Livingston County15
- Essex County15
- Lewis County14
- Oneida County14
- Oswego County14
- Schuyler County14
- Seneca County14
- Erie County14
- Ontario County14
- Cayuga County13
- Yates County13
- Chautauqua County13
- Jefferson County11
- Wayne County11
- Franklin County11
- Monroe County11
- Steuben County11
- Clinton County9
- St. Lawrence County9
- Niagara County9
- Orleans County7
The busiest days
Days with the most alerts issued, by UTC date.
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.