Alert archive / New York / Mesoscale Discussions
Mesoscale Discussions in New York, 2009
122 mesoscale discussions in 2009. 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 2009. Tap one for its archive.
- Mesoscale Discussions
- 122
- Busiest month
- July33 mesoscale discussions
- Busiest day
- June 26, 20095 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 7, 12:10 AM EST | Mesoscale Discussion | SPC | Albany, Allegany, Bronx, Broome, Cattaraugus, Cayuga and 37 more | 4 hr |
| Jan 7, 6:08 AM EST | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 12 more | 3 hr |
| Jan 7, 11:39 AM EST | Mesoscale Discussion | SPC | Albany, Clinton, Essex, Fulton, Hamilton, Rensselaer and 4 more | 6 hr |
| Jan 10, 12:56 PM EST | Mesoscale Discussion | SPC | Broome, Chemung, Delaware, Sullivan, Tioga, Ulster | 4 hr |
| Jan 10, 7:58 PM EST | Mesoscale Discussion | SPC | Albany, Allegany, Bronx, Broome, Cattaraugus, Cayuga and 44 more | 4 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | Allegany, Bronx, Broome, Cattaraugus, Chemung, Kings and 10 more | 5 hr |
| Jan 28, 7:53 AM EST | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Columbia, Cortland and 25 more | 5 hr |
| Jan 28, 12:24 PM EST | Mesoscale Discussion | SPC | Columbia, Delaware, Greene, Sullivan, Ulster | 4 hr |
| Jan 28, 12:26 PM EST | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 4 more | 6 hr |
| Feb 11, 8:00 PM EST | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chemung, Steuben | 60 min |
| Feb 18, 12:38 PM EST | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chemung, Schuyler, Steuben and 2 more | 3 hr |
| Feb 18, 6:28 PM EST | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Fulton, Greene, Montgomery and 8 more | 4 hr |
| Mar 1, 9:09 PM EST | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 4 hr |
| Mar 2, 12:41 AM EST | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 4 hr |
| Apr 24, 6:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Genesee, Livingston, Ontario, Steuben and 1 more | 54 min |
| Apr 25, 1:24 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Ontario and 6 more | 66 min |
| Apr 25, 4:54 PM EDT | Mesoscale Discussion | SPC | Genesee, Monroe, Niagara, Orleans, Wayne | 66 min |
| May 9, 11:52 AM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Cayuga, Chenango, Cortland, Essex and 24 more | 83 min |
| May 9, 2:56 PM EDT | Mesoscale Discussion | SPC | Albany, Chenango, Delaware, Essex, Fulton, Greene and 9 more | 94 min |
| May 9, 6:47 PM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess, Orange, Putnam, Rockland, Ulster and 1 more | 88 min |
| May 16, 12:05 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 22 more | 55 min |
| May 16, 3:55 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 17 more | 65 min |
| May 16, 6:29 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Cortland, Delaware and 12 more | 2 hr |
| May 23, 12:49 PM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Chenango, Cortland, Schuyler, Tioga and 1 more | 56 min |
| May 24, 11:49 AM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Delaware, Dutchess, Greene, Kings and 7 more | 116 min |
| May 24, 7:11 PM EDT | Mesoscale Discussion | SPC | Kings, New York, Queens, Richmond | 64 min |
| May 28, 4:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus | 66 min |
| Jun 9, 6:01 AM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Orange, Putnam, Queens and 5 more | 59 min |
| Jun 9, 11:48 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cayuga, Chemung, Chenango, Cortland and 9 more | 87 min |
| Jun 9, 3:40 PM EDT | Mesoscale Discussion | SPC | Broome, Chenango, Cortland, Delaware, Madison, Montgomery and 6 more | 65 min |
| Jun 25, 12:14 PM EDT | Mesoscale Discussion | SPC | Cayuga, Cortland, Erie, Genesee, Jefferson, Livingston and 14 more | 61 min |
| Jun 25, 3:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Chenango and 13 more | 54 min |
| Jun 25, 6:14 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 21 more | 91 min |
| Jun 25, 8:21 PM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Dutchess, Greene, Orange, Rensselaer and 3 more | 54 min |
| Jun 26, 12:06 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Clinton, Cortland and 28 more | 54 min |
| Jun 26, 2:19 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, New York, Orange, Putnam and 3 more | 56 min |
| Jun 26, 6:29 PM EDT | Mesoscale Discussion | SPC | Broome, Cayuga, Chemung, Chenango, Cortland, Delaware and 22 more | 61 min |
| Jun 26, 7:33 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 3 more | 57 min |
| Jun 30, 10:57 AM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Delaware, Essex, Franklin and 14 more | 93 min |
| Jun 30, 2:18 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Clinton, Columbia, Delaware, Dutchess and 24 more | 57 min |
| Jun 30, 4:25 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Clinton, Columbia, Dutchess, Essex and 12 more | 65 min |
| Jun 30, 6:06 PM EDT | Mesoscale Discussion | SPC | Bronx, Clinton, Columbia, Dutchess, Essex, Kings and 7 more | 54 min |
| Jul 1, 12:03 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Kings and 11 more | 87 min |
| Jul 1, 5:44 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Delaware, Dutchess, Essex and 16 more | 61 min |
| Jul 2, 3:20 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Nassau and 8 more | 55 min |
| Jul 7, 8:59 AM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess, Putnam, Rensselaer, Saratoga, Warren and 1 more | 3 hr |
| Jul 7, 2:00 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Fulton, Greene and 20 more | 90 min |
| Jul 7, 4:41 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Fulton, Greene and 20 more | 2 hr |
| Jul 11, 10:31 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 24 more | 59 min |
| Jul 11, 2:37 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chemung, Chenango, Cortland, Delaware and 11 more | 83 min |
| Jul 11, 7:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 36 more | 114 min |
| Jul 16, 12:04 PM EDT | Mesoscale Discussion | SPC | Albany, Chenango, Columbia, Delaware, Dutchess, Essex and 19 more | 86 min |
| Jul 16, 4:04 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more | 86 min |
| Jul 16, 4:55 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Delaware, Dutchess, Fulton and 11 more | 65 min |
| Jul 16, 6:16 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Dutchess, Greene, Orange and 6 more | 59 min |
| Jul 16, 7:42 PM EDT | Mesoscale Discussion | SPC | Dutchess, Putnam | 33 min |
| Jul 17, 3:12 PM EDT | Mesoscale Discussion | SPC | Dutchess, Orange, Putnam, Rockland, Westchester | 93 min |
| Jul 17, 6:18 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Richmond | 57 min |
| Jul 21, 1:56 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Cortland and 12 more | 64 min |
| Jul 24, 2:20 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cayuga, Chemung, Chenango, Cortland and 10 more | 115 min |
| Jul 25, 3:05 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chemung, Genesee, Livingston, Ontario and 5 more | 55 min |
| Jul 25, 7:43 PM EDT | Mesoscale Discussion | SPC | Allegany, Chemung, Genesee, Livingston, Monroe, Ontario and 5 more | 62 min |
| Jul 26, 12:56 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 6 more | 2 hr |
| Jul 26, 1:13 PM EDT | Mesoscale Discussion | SPC | Albany, Clinton, Columbia, Essex, Franklin, Fulton and 7 more | 2 hr |
| Jul 26, 3:14 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 8 more | 2 hr |
| Jul 26, 6:37 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, Nassau, New York and 7 more | 113 min |
| Jul 26, 10:06 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Putnam, Richmond, Rockland and 1 more | 54 min |
| Jul 27, 2:20 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, New York, Orange and 4 more | 55 min |
| Jul 29, 12:22 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Delaware, Dutchess, Greene and 16 more | 23 min |
| Jul 29, 2:22 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chenango, Clinton, Columbia and 27 more | 23 min |
| Jul 29, 5:05 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Broome, Chenango, Columbia, Delaware and 22 more | 55 min |
| Jul 29, 7:14 PM EDT | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 7 more | 61 min |
| Jul 31, 10:20 AM EDT | Mesoscale Discussion | SPC | Dutchess, Greene, Orange, Sullivan, Ulster | 85 min |
| Jul 31, 3:05 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 85 min |
| Jul 31, 4:34 PM EDT | Mesoscale Discussion | SPC | Kings, Nassau, Queens, Richmond, Suffolk | 86 min |
| Aug 2, 10:01 AM EDT | Mesoscale Discussion | SPC | Bronx, Kings, New York, Richmond | 119 min |
| Aug 2, 11:54 AM EDT | Mesoscale Discussion | SPC | Chenango, Clinton, Essex, Franklin, Fulton, Hamilton and 11 more | 2 hr |
| Aug 2, 12:23 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more | 2 hr |
| Aug 4, 6:09 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Clinton, Cortland and 23 more | 66 min |
| Aug 9, 11:36 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Chemung, Erie, Genesee and 10 more | 24 min |
| Aug 9, 2:45 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 16 more | 60 min |
| Aug 9, 7:11 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chemung, Chenango and 24 more | 2 hr |
| Aug 9, 10:47 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 13 more | 118 min |
| Aug 10, 2:26 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 12 more | 2 hr |
| Aug 10, 4:40 PM EDT | Mesoscale Discussion | SPC | Albany, Bronx, Columbia, Dutchess, Fulton, Greene and 12 more | 2 hr |
| Aug 10, 8:15 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 31 more | 2 hr |
| Aug 11, 12:39 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua | 2 hr |
| Aug 12, 1:01 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond | 89 min |
| Aug 18, 2:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 29 more | 88 min |
| Aug 19, 1:21 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Chenango, Columbia, Delaware, Dutchess and 16 more | 84 min |
| Aug 19, 6:05 PM EDT | Mesoscale Discussion | SPC | Richmond | 55 min |
| Aug 20, 6:20 PM EDT | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua | 55 min |
| Aug 20, 10:40 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Genesee, Livingston, Monroe and 8 more | 95 min |
| Aug 21, 10:01 AM EDT | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Dutchess, Essex, Fulton and 14 more | 119 min |
| Aug 21, 1:58 PM EDT | Mesoscale Discussion | SPC | Columbia, Dutchess, Orange, Putnam, Rensselaer, Rockland and 2 more | 92 min |
| Aug 21, 5:55 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Putnam, Queens and 4 more | 80 min |
| Sep 23, 1:18 PM EDT | Mesoscale Discussion | SPC | Albany, Allegany, Cayuga, Chemung, Chenango, Clinton and 35 more | 57 min |
| Sep 23, 6:16 PM EDT | Mesoscale Discussion | SPC | Broome, Chemung, Chenango, Delaware, Fulton, Hamilton and 8 more | 89 min |
| Sep 28, 10:49 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Erie, Genesee, Livingston, Monroe and 6 more | 56 min |
| Sep 28, 1:45 PM EDT | Mesoscale Discussion | SPC | Cayuga, Genesee, Jefferson, Lewis, Livingston, Madison and 10 more | 90 min |
| Oct 7, 7:30 AM EDT | Mesoscale Discussion | SPC | Columbia, Rensselaer, Ulster, Washington | 2 hr |
| Oct 24, 7:02 PM EDT | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more | 58 min |
| Dec 3, 6:28 AM EST | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, Nassau, New York and 5 more | 62 min |
| Dec 8, 11:32 PM EST | Mesoscale Discussion | SPC | Albany, Allegany, Broome, Cattaraugus, Cayuga, Chautauqua and 41 more | 6 hr |
| Dec 9, 6:33 AM EST | Mesoscale Discussion | SPC | Clinton, Essex, Franklin, Warren, Washington | 3 hr |
| Dec 9, 11:02 AM EST | Mesoscale Discussion | SPC | Cattaraugus, Chautauqua | 88 min |
| Dec 9, 7:27 PM EST | Mesoscale Discussion | SPC | Erie, Genesee, Livingston, Wyoming | 4 hr |
| Dec 9, 11:43 PM EST | Mesoscale Discussion | SPC | Erie, Genesee, Livingston, Wyoming | 4 hr |
| Dec 9, 11:58 PM EST | Mesoscale Discussion | SPC | Jefferson, Lewis, St. Lawrence | 4 hr |
| Dec 10, 10:16 AM EST | Mesoscale Discussion | SPC | Lewis, Oswego | 6 hr |
| Dec 10, 10:34 AM EST | Mesoscale Discussion | SPC | Chautauqua, Erie, Livingston, Ontario, Wyoming | 6 hr |
| Dec 10, 7:05 PM EST | Mesoscale Discussion | SPC | Chautauqua, Erie, Wyoming | 4 hr |
| Dec 10, 7:51 PM EST | Mesoscale Discussion | SPC | Essex, Hamilton, Herkimer, Jefferson, Lewis, Oswego | 6 hr |
| Dec 11, 9:27 PM EST | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua | 4 hr |
| Dec 11, 11:08 PM EST | Mesoscale Discussion | SPC | Oneida, Oswego | 4 hr |
| Dec 12, 5:55 AM EST | Mesoscale Discussion | SPC | Oneida, Oswego, Wayne | 3 hr |
| Dec 13, 5:16 AM EST | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chemung, Cortland, Schuyler and 4 more | 4 hr |
| Dec 19, 12:27 PM EST | Mesoscale Discussion | SPC | Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more | 6 hr |
| Dec 19, 7:25 PM EST | Mesoscale Discussion | SPC | Bronx, Dutchess, Kings, Nassau, New York, Orange and 6 more | 5 hr |
| Dec 20, 12:32 AM EST | Mesoscale Discussion | SPC | Bronx, Nassau, New York, Queens, Suffolk, Westchester | 4 hr |
| Dec 25, 5:03 PM EST | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Dutchess, Fulton, Greene and 7 more | 6 hr |
| Dec 26, 12:37 AM EST | Mesoscale Discussion | SPC | Albany, Columbia, Delaware, Essex, Franklin, Fulton and 14 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rockland County41
- New York County40
- Orange County40
- Dutchess County39
- Putnam County39
- Ulster County39
- Bronx County38
- Columbia County38
- Westchester County38
- Sullivan County37
- Allegany County35
- Schenectady County35
- Kings County35
- Albany County34
- Rensselaer County34
- Chemung County33
- Delaware County33
- Greene County33
- Montgomery County33
- Ontario County33
- Schoharie County33
- Steuben County33
- Saratoga County33
- Richmond County33
- Cattaraugus County32
- Chenango County32
- Otsego County32
- Schuyler County32
- Fulton County32
- Livingston County31
- Tioga County31
- Tompkins County31
- Yates County31
- Broome County30
- Queens County30
- Cortland County29
- Seneca County29
- Wyoming County29
- Washington County29
- Warren County28
22 more counties
- Madison County27
- Cayuga County26
- Hamilton County26
- Genesee County24
- Onondaga County24
- Wayne County24
- Nassau County24
- Oneida County24
- Herkimer County24
- Essex County23
- Oswego County23
- Erie County22
- Chautauqua County21
- Monroe County19
- Lewis County19
- Clinton County18
- Orleans County17
- Franklin County15
- Suffolk County15
- Jefferson County13
- Niagara County12
- St. Lawrence County11
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.