Alert archive / New York / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in New York, 2015

230 severe thunderstorm warnings in 2015. 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 2015. Tap one for its archive.

Severe Thunderstorm Warnings: 230
Busiest month: June96 severe thunderstorm warnings
Busiest day: June 12, 201540 severe thunderstorm warnings

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

153 of 230 severe thunderstorm warnings covering New York in 2015 had a qualifying storm report inside them; 432 of 545 hail, wind and damage reports fell inside a warning, on average 21 minutes after it went out.

New York, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	230	153	33%	545	79%	21 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS New York, NY: severe thunderstorm warnings	34	23	32%	130	75%	18 min
NWS Albany, NY: severe thunderstorm warnings	80	58	28%	198	79%	23 min
NWS Buffalo, NY: severe thunderstorm warnings	65	43	34%	189	82%	21 min
NWS Binghamton, NY: severe thunderstorm warnings	62	40	35%	108	81%	23 min
NWS Burlington, VT: severe thunderstorm warnings	38	22	42%	61	72%	18 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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 18, 5:31 PM EST	Severe Thunderstorm Warning	OKX	Suffolk	44 min
Apr 20, 3:28 PM EDT	Severe Thunderstorm Warning	BUF	Erie	47 min
Apr 20, 4:10 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Monroe, Orleans, Wyoming	50 min
Apr 20, 4:19 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Wyoming	32 min
Apr 20, 4:41 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wyoming	49 min
Apr 20, 6:58 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	47 min
Apr 20, 8:26 PM EDT	Severe Thunderstorm Warning	BGM	Steuben, Yates	49 min
Apr 22, 3:57 PM EDT	Severe Thunderstorm Warning	OKX	Kings, Nassau, Queens, Suffolk	22 min
May 10, 3:59 PM EDT	Severe Thunderstorm Warning	BGM	Cortland	44 min
May 10, 4:15 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga	60 min
May 10, 4:45 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	30 min
May 11, 6:11 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	64 min
May 11, 6:19 PM EDT	Severe Thunderstorm Warning	BTV	Essex, Franklin	26 min
May 11, 8:26 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	64 min
May 11, 8:59 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	46 min
May 11, 9:57 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Livingston, Orleans, Wyoming	48 min
May 18, 5:51 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Tioga	24 min
May 18, 6:13 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango	32 min
May 18, 6:54 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	66 min
May 18, 7:36 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston	54 min
May 18, 8:11 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	22 min
May 18, 9:12 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Seneca	33 min
May 19, 2:01 PM EDT	Severe Thunderstorm Warning	BTV	Clinton	59 min
May 19, 2:12 PM EDT	Severe Thunderstorm Warning	BTV	Clinton	63 min
May 19, 5:39 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Greene, Ulster	57 min
May 19, 8:05 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess	55 min
May 19, 8:34 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess	56 min
May 27, 1:21 PM EDT	Severe Thunderstorm Warning	BTV	Clinton, Essex	54 min
May 27, 1:53 PM EDT	Severe Thunderstorm Warning	BTV	Essex	56 min
May 27, 3:26 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	64 min
May 27, 3:29 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Sullivan	61 min
May 27, 5:00 PM EDT	Severe Thunderstorm Warning	OKX	Orange	30 min
May 27, 5:02 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	58 min
May 27, 5:21 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess	54 min
May 27, 5:29 PM EDT	Severe Thunderstorm Warning	OKX	Orange	31 min
May 27, 5:40 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	65 min
May 27, 6:37 PM EDT	Severe Thunderstorm Warning	OKX	Rockland, Westchester	38 min
May 27, 7:53 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wyoming	26 min
May 28, 1:45 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	45 min
May 28, 4:38 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	37 min
May 28, 5:20 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	40 min
May 30, 4:27 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	63 min
May 30, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	66 min
May 30, 6:12 PM EDT	Severe Thunderstorm Warning	BTV	Essex	54 min
May 30, 6:36 PM EDT	Severe Thunderstorm Warning	BGM	Chemung, Steuben	39 min
May 30, 6:49 PM EDT	Severe Thunderstorm Warning	BTV	Essex	41 min
May 31, 4:10 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	22 min
May 31, 5:08 PM EDT	Severe Thunderstorm Warning	OKX	Richmond	32 min
Jun 5, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	42 min
Jun 8, 10:25 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Wyoming	65 min
Jun 8, 11:13 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wayne, Wyoming	62 min
Jun 8, 11:39 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario, Wayne, Wyoming	66 min
Jun 8, 12:31 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga, Seneca, Yates	59 min
Jun 8, 12:44 PM EDT	Severe Thunderstorm Warning	BGM	Seneca, Steuben, Yates	61 min
Jun 8, 12:59 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga, Seneca, Steuben, Yates	61 min
Jun 8, 1:22 PM EDT	Severe Thunderstorm Warning	BGM	Madison, Oneida, Onondaga	53 min
Jun 8, 1:30 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Schuyler, Seneca, Steuben, Tompkins, Yates	60 min
Jun 8, 1:49 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Cortland, Madison, Oneida, Onondaga	56 min
Jun 8, 2:54 PM EDT	Severe Thunderstorm Warning	BGM	Chemung, Steuben, Tioga	51 min
Jun 9, 2:15 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga, Warren	60 min
Jun 9, 2:27 PM EDT	Severe Thunderstorm Warning	BTV	Clinton, Essex, Franklin	63 min
Jun 9, 2:41 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Rensselaer, Saratoga, Schenectady, Washington	49 min
Jun 9, 2:50 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer, Schenectady	55 min
Jun 9, 3:09 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	66 min
Jun 10, 7:20 PM EDT	Severe Thunderstorm Warning	BUF	Niagara, Orleans	34 min
Jun 10, 8:48 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	57 min
Jun 10, 8:56 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe	49 min
Jun 10, 9:16 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	45 min
Jun 10, 9:36 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe	26 min
Jun 10, 9:40 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario, Wayne	35 min
Jun 10, 9:44 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Jefferson, Lewis, Oswego	61 min
Jun 10, 9:54 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Seneca	51 min
Jun 10, 10:33 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	27 min
Jun 10, 10:43 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Cortland, Onondaga, Seneca	47 min
Jun 10, 11:27 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Cortland	48 min
Jun 10, 11:38 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tompkins	41 min
Jun 12, 2:52 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	38 min
Jun 12, 2:59 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga	61 min
Jun 12, 3:14 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	61 min
Jun 12, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	55 min
Jun 12, 3:25 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Cortland, Madison, Onondaga	65 min
Jun 12, 3:30 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	60 min
Jun 12, 3:38 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	52 min
Jun 12, 4:04 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	26 min
Jun 12, 4:15 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	60 min
Jun 12, 4:27 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	63 min
Jun 12, 4:30 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Madison, Otsego	60 min
Jun 12, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario	65 min
Jun 12, 4:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston	63 min
Jun 12, 5:05 PM EDT	Severe Thunderstorm Warning	BGM	Madison, Onondaga	40 min
Jun 12, 5:20 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	32 min
Jun 12, 5:23 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	35 min
Jun 12, 5:29 PM EDT	Severe Thunderstorm Warning	BGM	Otsego	61 min
Jun 12, 5:31 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	29 min
Jun 12, 5:33 PM EDT	Severe Thunderstorm Warning	BGM	Madison, Oneida	57 min
Jun 12, 5:36 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Seneca, Steuben, Yates	54 min
Jun 12, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	21 min
Jun 12, 5:40 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	35 min
Jun 12, 5:42 PM EDT	Severe Thunderstorm Warning	BGM	Steuben	63 min
Jun 12, 5:46 PM EDT	Severe Thunderstorm Warning	ALY	Herkimer	59 min
Jun 12, 6:11 PM EDT	Severe Thunderstorm Warning	ALY	Hamilton	64 min
Jun 12, 6:16 PM EDT	Severe Thunderstorm Warning	BGM	Schuyler, Seneca, Steuben, Yates	41 min
Jun 12, 6:17 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Schenectady, Schoharie	58 min
Jun 12, 6:24 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Onondaga, Seneca	36 min
Jun 12, 6:38 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery	52 min
Jun 12, 6:39 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Cortland, Madison	51 min
Jun 12, 6:47 PM EDT	Severe Thunderstorm Warning	BGM	Schuyler, Seneca, Tompkins	36 min
Jun 12, 6:49 PM EDT	Severe Thunderstorm Warning	ALY	Herkimer	41 min
Jun 12, 7:07 PM EDT	Severe Thunderstorm Warning	BGM	Otsego	23 min
Jun 12, 7:14 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga, Tompkins	61 min
Jun 12, 7:17 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga, Schenectady	58 min
Jun 12, 7:27 PM EDT	Severe Thunderstorm Warning	BGM	Chenango, Madison, Otsego	48 min
Jun 12, 7:28 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Schoharie	47 min
Jun 12, 7:36 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Cortland, Tioga	39 min
Jun 12, 7:41 PM EDT	Severe Thunderstorm Warning	BGM	Tioga	64 min
Jun 12, 7:57 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Chenango, Delaware, Otsego	48 min
Jun 12, 8:16 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga, Schenectady	59 min
Jun 12, 8:25 PM EDT	Severe Thunderstorm Warning	BGM	Otsego	20 min
Jun 12, 8:27 PM EDT	Severe Thunderstorm Warning	ALY	Schoharie	48 min
Jun 12, 8:41 PM EDT	Severe Thunderstorm Warning	BGM	Delaware	34 min
Jun 12, 8:51 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	54 min
Jun 12, 8:56 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer, Schoharie, Ulster	64 min
Jun 12, 9:50 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Greene, Rensselaer, Ulster	55 min
Jun 21, 9:02 PM EDT	Severe Thunderstorm Warning	BTV	St. Lawrence	58 min
Jun 23, 3:52 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	34 min
Jun 23, 4:29 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Orleans, Wyoming	46 min
Jun 23, 4:44 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	46 min
Jun 23, 4:52 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	53 min
Jun 23, 5:27 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	63 min
Jun 23, 6:02 AM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	58 min
Jun 23, 6:10 AM EDT	Severe Thunderstorm Warning	BGM	Schuyler, Steuben, Yates	65 min
Jun 23, 9:22 AM EDT	Severe Thunderstorm Warning	ALY	Albany, Greene, Schoharie, Ulster	23 min
Jun 23, 2:43 PM EDT	Severe Thunderstorm Warning	OKX	Orange, Rockland	47 min
Jun 23, 3:04 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	31 min
Jun 23, 3:44 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	46 min
Jun 23, 4:11 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	49 min
Jun 23, 4:20 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Schenectady	29 min
Jun 23, 5:58 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more	47 min
Jun 23, 6:43 PM EDT	Severe Thunderstorm Warning	OKX	Suffolk	45 min
Jun 23, 6:48 PM EDT	Severe Thunderstorm Warning	OKX	Nassau	12 min
Jun 23, 7:08 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	37 min
Jun 23, 7:13 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess	62 min
Jun 23, 7:46 PM EDT	Severe Thunderstorm Warning	OKX	Suffolk	29 min
Jun 23, 8:14 PM EDT	Severe Thunderstorm Warning	OKX	Suffolk	31 min
Jul 1, 4:13 AM EDT	Severe Thunderstorm Warning	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond	47 min
Jul 1, 4:34 AM EDT	Severe Thunderstorm Warning	OKX	Bronx, Nassau, New York, Rockland, Westchester	41 min
Jul 1, 5:34 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	56 min
Jul 1, 6:20 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	55 min
Jul 1, 2:23 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery, Saratoga	40 min
Jul 1, 4:09 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	31 min
Jul 7, 4:27 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Orleans	48 min
Jul 7, 4:34 PM EDT	Severe Thunderstorm Warning	BUF	Erie	41 min
Jul 7, 5:49 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	56 min
Jul 14, 3:23 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	67 min
Jul 14, 4:18 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Wyoming	34 min
Jul 14, 4:25 PM EDT	Severe Thunderstorm Warning	BGM	Steuben	65 min
Jul 14, 5:19 PM EDT	Severe Thunderstorm Warning	BGM	Chemung, Schuyler, Steuben, Yates	56 min
Jul 14, 5:20 PM EDT	Severe Thunderstorm Warning	BGM	Delaware, Otsego	55 min
Jul 14, 6:06 PM EDT	Severe Thunderstorm Warning	BGM	Chemung, Schuyler, Steuben, Tompkins	54 min
Jul 19, 4:24 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer	36 min
Jul 19, 4:46 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer	44 min
Jul 19, 5:17 PM EDT	Severe Thunderstorm Warning	ALY	Schoharie	43 min
Jul 19, 5:23 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	56 min
Jul 19, 5:26 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga, Schenectady	64 min
Jul 19, 5:45 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery, Saratoga, Schenectady	46 min
Jul 19, 5:48 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	57 min
Jul 19, 6:03 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus	46 min
Jul 19, 6:25 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	65 min
Jul 19, 6:30 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	60 min
Jul 19, 6:54 PM EDT	Severe Thunderstorm Warning	ALY	Washington	26 min
Jul 21, 11:41 AM EDT	Severe Thunderstorm Warning	BTV	Clinton, Franklin	64 min
Jul 21, 12:35 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Cortland, Tioga, Tompkins	40 min
Jul 21, 1:17 PM EDT	Severe Thunderstorm Warning	BTV	Clinton, Essex	58 min
Jul 21, 4:27 PM EDT	Severe Thunderstorm Warning	OKX	Orange	48 min
Jul 21, 6:00 PM EDT	Severe Thunderstorm Warning	OKX	Orange, Rockland	30 min
Jul 21, 6:37 PM EDT	Severe Thunderstorm Warning	OKX	Rockland, Westchester	23 min
Jul 24, 2:00 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	60 min
Jul 24, 2:42 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Washington	48 min
Jul 24, 3:17 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Saratoga, Washington	43 min
Jul 26, 2:47 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	24 min
Jul 26, 4:20 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	25 min
Jul 26, 4:28 PM EDT	Severe Thunderstorm Warning	BGM	Broome, Tioga	32 min
Jul 26, 4:35 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess	55 min
Jul 26, 4:47 PM EDT	Severe Thunderstorm Warning	BTV	Essex	43 min
Jul 26, 5:35 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	40 min
Jul 30, 2:50 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, Nassau, Queens, Suffolk	40 min
Aug 1, 2:56 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	64 min
Aug 3, 2:27 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Schenectady, Schoharie	48 min
Aug 3, 3:31 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	32 min
Aug 3, 4:53 PM EDT	Severe Thunderstorm Warning	BGM	Sullivan	22 min
Aug 3, 7:32 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery, Schenectady	45 min
Aug 4, 4:40 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	35 min
Aug 4, 4:56 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	49 min
Aug 4, 5:02 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	9 min
Aug 4, 5:28 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	47 min
Aug 4, 5:49 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	26 min
Aug 4, 12:20 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer	25 min
Aug 4, 12:44 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	46 min
Aug 4, 1:24 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	51 min
Aug 4, 2:01 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	24 min
Aug 4, 2:36 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	39 min
Aug 10, 5:17 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Wyoming	43 min
Aug 10, 5:22 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	53 min
Aug 14, 5:12 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Herkimer	48 min
Aug 15, 2:34 PM EDT	Severe Thunderstorm Warning	BTV	Essex	56 min
Aug 15, 4:13 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	62 min
Aug 15, 4:35 PM EDT	Severe Thunderstorm Warning	ALY	Hamilton	55 min
Aug 15, 5:01 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Greene	59 min
Aug 15, 5:12 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	33 min
Aug 15, 5:39 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Greene	51 min
Aug 18, 2:57 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	42 min
Aug 18, 3:33 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess	24 min
Aug 18, 4:37 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	53 min
Aug 18, 5:45 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	45 min
Aug 18, 6:32 PM EDT	Severe Thunderstorm Warning	BTV	St. Lawrence	43 min
Aug 18, 8:12 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, St. Lawrence	63 min
Aug 18, 8:44 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, St. Lawrence	44 min
Sep 3, 2:13 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Schenectady	62 min
Sep 3, 3:12 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Saratoga	33 min
Sep 3, 3:33 PM EDT	Severe Thunderstorm Warning	ALY	Albany	27 min
Sep 3, 3:50 PM EDT	Severe Thunderstorm Warning	ALY	Albany	12 min
Sep 9, 11:43 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	62 min
Sep 9, 12:14 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Wyoming	46 min
Sep 9, 12:39 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	51 min
Sep 9, 12:43 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	62 min
Sep 9, 1:03 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	42 min
Sep 9, 1:04 PM EDT	Severe Thunderstorm Warning	BGM	Oneida	41 min
Sep 9, 1:45 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	14 min
Sep 9, 3:29 PM EDT	Severe Thunderstorm Warning	BTV	Clinton, Essex	31 min
Nov 12, 4:52 PM EST	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	53 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

22 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2014 2016

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.