Alert archive / Pennsylvania / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Pennsylvania, 2002

432 severe thunderstorm warnings in 2002. 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 2002. Tap one for its archive.

Severe Thunderstorm Warnings: 432
Busiest month: May110 severe thunderstorm warnings
Busiest day: May 31, 200241 severe thunderstorm warnings

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
Feb 20, 6:15 PM EST	Severe Thunderstorm Warning	PBZ	Butler	45 min
Feb 26, 3:18 PM EST	Severe Thunderstorm Warning	CTP	Cameron, Centre	57 min
Mar 9, 6:24 PM EST	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence, Mercer, Washington	66 min
Mar 9, 6:44 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Butler, Venango	61 min
Mar 9, 7:07 PM EST	Severe Thunderstorm Warning	PBZ	Greene	53 min
Mar 9, 7:14 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Fayette, Forest, Westmoreland	61 min
Mar 9, 9:44 PM EST	Severe Thunderstorm Warning	BGM	Bradford	61 min
Mar 9, 9:47 PM EST	Severe Thunderstorm Warning	BGM	Bradford	58 min
Mar 9, 10:33 PM EST	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Snyder, Union	42 min
Mar 9, 10:39 PM EST	Severe Thunderstorm Warning	BGM	Bradford, Luzerne, Susquehanna, Wyoming	51 min
Mar 9, 10:44 PM EST	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	31 min
Mar 9, 10:45 PM EST	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	60 min
Mar 9, 11:17 PM EST	Severe Thunderstorm Warning	CTP	Lancaster, York	73 min
Mar 9, 11:23 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming	52 min
Mar 9, 11:39 PM EST	Severe Thunderstorm Warning	PHI	Berks	51 min
Mar 9, 11:43 PM EST	Severe Thunderstorm Warning	PHI	Carbon	32 min
Mar 10, 12:05 AM EST	Severe Thunderstorm Warning	PHI	Lehigh, Monroe, Northampton	55 min
Mar 10, 12:07 AM EST	Severe Thunderstorm Warning	BGM	Luzerne, Pike, Wayne	53 min
Mar 10, 12:15 AM EST	Severe Thunderstorm Warning	BGM	Pike	60 min
Mar 10, 2:12 AM EST	Severe Thunderstorm Warning	PHI	Bucks	18 min
Apr 14, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	64 min
Apr 14, 5:22 PM EDT	Severe Thunderstorm Warning	CTP	Adams	38 min
Apr 15, 5:12 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	63 min
Apr 15, 6:04 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	41 min
Apr 15, 6:15 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	60 min
Apr 15, 6:30 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	30 min
Apr 15, 6:44 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	61 min
Apr 15, 6:59 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	46 min
Apr 15, 7:12 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	48 min
Apr 15, 7:14 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	46 min
Apr 15, 7:18 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	27 min
Apr 15, 7:46 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	44 min
Apr 15, 7:56 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	19 min
Apr 15, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	32 min
Apr 15, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	61 min
Apr 15, 8:20 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	40 min
Apr 15, 8:28 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	47 min
Apr 15, 8:45 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	45 min
Apr 15, 9:35 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	55 min
Apr 15, 10:36 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	69 min
Apr 19, 12:41 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	64 min
Apr 19, 2:48 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	57 min
Apr 19, 2:52 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Snyder	53 min
Apr 19, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	40 min
Apr 19, 4:58 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	62 min
Apr 19, 7:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	64 min
Apr 28, 1:41 PM EDT	Severe Thunderstorm Warning	CLE	Erie	64 min
Apr 28, 2:18 PM EDT	Severe Thunderstorm Warning	CTP	Warren	12 min
Apr 28, 2:20 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	55 min
Apr 28, 2:22 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	53 min
Apr 28, 2:38 PM EDT	Severe Thunderstorm Warning	CTP	Warren	67 min
Apr 28, 2:45 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	60 min
Apr 28, 2:54 PM EDT	Severe Thunderstorm Warning	CTP	McKean	66 min
Apr 28, 2:57 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	63 min
Apr 28, 2:58 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	62 min
Apr 28, 2:59 PM EDT	Severe Thunderstorm Warning	CTP	Elk	61 min
Apr 28, 3:20 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	55 min
Apr 28, 3:40 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Westmoreland	65 min
Apr 28, 3:51 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	54 min
Apr 28, 4:00 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	60 min
Apr 28, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	55 min
Apr 28, 4:17 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	58 min
Apr 28, 4:26 PM EDT	Severe Thunderstorm Warning	CTP	Centre	64 min
Apr 28, 4:27 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	63 min
Apr 28, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	65 min
Apr 28, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	55 min
Apr 28, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	66 min
Apr 28, 5:12 PM EDT	Severe Thunderstorm Warning	CTP	Perry	63 min
Apr 28, 5:16 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Snyder, Union	59 min
Apr 28, 5:24 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	36 min
Apr 28, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lebanon	65 min
Apr 28, 6:11 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	64 min
Apr 28, 6:19 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	26 min
Apr 28, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	64 min
Apr 28, 6:40 PM EDT	Severe Thunderstorm Warning	PHI	Berks	35 min
Apr 28, 7:13 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	32 min
Apr 28, 7:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	45 min
May 2, 5:43 AM EDT	Severe Thunderstorm Warning	PBZ	Indiana	62 min
May 2, 3:15 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Union	60 min
May 2, 3:44 PM EDT	Severe Thunderstorm Warning	CTP	Adams	61 min
May 2, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	York	60 min
May 2, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	64 min
May 2, 4:58 PM EDT	Severe Thunderstorm Warning	PHI	Chester	47 min
May 2, 7:33 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	42 min
May 9, 1:29 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	61 min
May 9, 2:20 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	55 min
May 9, 2:36 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	54 min
May 9, 3:32 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	43 min
May 9, 5:12 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	63 min
May 12, 12:52 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	68 min
May 12, 1:09 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	66 min
May 12, 1:13 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	47 min
May 12, 1:35 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	70 min
May 12, 1:58 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	62 min
May 12, 2:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	53 min
May 12, 2:09 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	66 min
May 12, 2:13 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	62 min
May 12, 2:43 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	62 min
May 12, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	80 min
May 12, 3:19 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	41 min
May 12, 3:41 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	49 min
May 12, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	41 min
May 12, 4:36 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	39 min
May 12, 5:15 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	60 min
May 12, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Berks	30 min
May 12, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	56 min
May 12, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	35 min
May 12, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	York	64 min
May 12, 5:42 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	33 min
May 12, 6:19 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	26 min
May 13, 2:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks	42 min
May 13, 2:41 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	34 min
May 13, 3:02 PM EDT	Severe Thunderstorm Warning	PHI	Berks	28 min
May 13, 3:21 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	24 min
May 13, 4:36 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	24 min
May 13, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Chester	65 min
May 13, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	42 min
May 13, 5:16 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	39 min
May 13, 7:45 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	60 min
May 13, 7:49 PM EDT	Severe Thunderstorm Warning	CTP	Adams	56 min
May 13, 8:08 PM EDT	Severe Thunderstorm Warning	PHI	Chester	52 min
May 13, 8:41 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	64 min
May 14, 4:53 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	37 min
May 14, 4:57 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	48 min
May 14, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	34 min
May 14, 5:17 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	43 min
May 14, 5:24 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	51 min
May 14, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	27 min
May 14, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	60 min
May 14, 5:50 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	55 min
May 14, 6:05 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	55 min
May 14, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Chester	30 min
May 14, 6:30 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	30 min
May 14, 6:38 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	52 min
May 14, 6:38 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	22 min
May 25, 9:17 PM EDT	Severe Thunderstorm Warning	CLE	Erie	43 min
May 25, 10:12 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	33 min
May 26, 2:20 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	40 min
May 26, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Adams	49 min
May 26, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	York	75 min
May 26, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	55 min
May 26, 7:37 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	53 min
May 26, 9:20 PM EDT	Severe Thunderstorm Warning	CTP	Juniata	55 min
May 27, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	46 min
May 27, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	54 min
May 28, 12:15 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	45 min
May 31, 3:21 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	54 min
May 31, 3:30 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	30 min
May 31, 3:39 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	21 min
May 31, 3:57 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	48 min
May 31, 4:08 PM EDT	Severe Thunderstorm Warning	CTP	Elk	37 min
May 31, 4:13 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	47 min
May 31, 4:15 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	45 min
May 31, 4:17 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	58 min
May 31, 4:22 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	53 min
May 31, 4:28 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	62 min
May 31, 4:31 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	59 min
May 31, 4:31 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	29 min
May 31, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	40 min
May 31, 4:44 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	46 min
May 31, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	26 min
May 31, 5:15 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	45 min
May 31, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	57 min
May 31, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	27 min
May 31, 5:28 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	62 min
May 31, 5:30 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	45 min
May 31, 5:33 PM EDT	Severe Thunderstorm Warning	BGM	Pike	27 min
May 31, 5:33 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	57 min
May 31, 5:36 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	39 min
May 31, 5:40 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Huntingdon	95 min
May 31, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	47 min
May 31, 5:44 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	61 min
May 31, 6:01 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	59 min
May 31, 6:07 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	38 min
May 31, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	53 min
May 31, 6:09 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	51 min
May 31, 6:18 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	57 min
May 31, 6:21 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	39 min
May 31, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	54 min
May 31, 6:59 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Perry	46 min
May 31, 7:18 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	27 min
May 31, 7:19 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	41 min
May 31, 7:28 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	62 min
May 31, 7:30 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	45 min
May 31, 7:44 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	31 min
May 31, 7:47 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	43 min
May 31, 7:47 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	58 min
May 31, 8:48 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	57 min
Jun 4, 3:27 PM EDT	Severe Thunderstorm Warning	CTP	Warren	63 min
Jun 4, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	McKean	56 min
Jun 4, 4:28 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	62 min
Jun 4, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Elk	59 min
Jun 4, 4:35 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	55 min
Jun 4, 5:12 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	63 min
Jun 4, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	56 min
Jun 4, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	McKean	61 min
Jun 4, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	46 min
Jun 4, 7:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre	56 min
Jun 4, 7:50 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	55 min
Jun 4, 8:02 PM EDT	Severe Thunderstorm Warning	CTP	Centre	28 min
Jun 4, 11:25 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	65 min
Jun 5, 1:14 AM EDT	Severe Thunderstorm Warning	CLE	Erie	61 min
Jun 5, 2:24 AM EDT	Severe Thunderstorm Warning	CTP	Warren	21 min
Jun 5, 4:12 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion	63 min
Jun 5, 4:14 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	61 min
Jun 5, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	60 min
Jun 5, 4:28 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	62 min
Jun 5, 4:38 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Mifflin	52 min
Jun 5, 4:41 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	64 min
Jun 5, 4:57 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	63 min
Jun 5, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	55 min
Jun 5, 5:05 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	55 min
Jun 5, 5:11 PM EDT	Severe Thunderstorm Warning	CTP	Warren	64 min
Jun 5, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	57 min
Jun 5, 5:22 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	53 min
Jun 5, 5:26 PM EDT	Severe Thunderstorm Warning	CTP	Union	49 min
Jun 5, 5:29 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	46 min
Jun 5, 5:31 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	44 min
Jun 5, 5:31 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	59 min
Jun 5, 5:35 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	40 min
Jun 5, 5:52 PM EDT	Severe Thunderstorm Warning	CTP	Adams	38 min
Jun 5, 6:00 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	60 min
Jun 5, 6:33 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	57 min
Jun 5, 6:35 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
Jun 5, 6:46 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	59 min
Jun 5, 6:56 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	64 min
Jun 5, 7:09 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	66 min
Jun 5, 7:13 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	62 min
Jun 5, 8:12 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	63 min
Jun 5, 8:38 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	37 min
Jun 5, 9:21 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	24 min
Jun 6, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	York	54 min
Jun 6, 5:58 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	62 min
Jun 6, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	Chester	50 min
Jun 6, 7:36 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	39 min
Jun 6, 8:02 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	28 min
Jun 6, 8:26 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	34 min
Jun 12, 2:11 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Northampton	49 min
Jun 12, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	48 min
Jun 12, 4:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	45 min
Jun 14, 5:49 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	56 min
Jun 14, 6:49 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	26 min
Jun 14, 7:55 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	65 min
Jun 23, 7:14 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	61 min
Jun 24, 4:32 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	43 min
Jun 24, 4:38 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	22 min
Jun 24, 4:58 PM EDT	Severe Thunderstorm Warning	OKX	Bucks	47 min
Jun 24, 5:10 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	50 min
Jun 24, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	30 min
Jun 24, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	24 min
Jun 24, 5:45 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	15 min
Jun 24, 6:18 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	42 min
Jun 24, 7:22 PM EDT	Severe Thunderstorm Warning	PHI	Chester	23 min
Jun 25, 10:34 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	26 min
Jun 26, 12:54 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	51 min
Jun 26, 1:28 PM EDT	Severe Thunderstorm Warning	BGM	Pike	62 min
Jun 26, 2:24 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	66 min
Jun 26, 2:27 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	63 min
Jun 26, 4:23 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	22 min
Jun 26, 6:11 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	49 min
Jun 27, 12:00 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	60 min
Jun 27, 1:21 PM EDT	Severe Thunderstorm Warning	CLE	Erie	39 min
Jun 27, 1:40 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	65 min
Jun 27, 1:57 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	63 min
Jun 27, 2:14 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	61 min
Jun 27, 3:27 PM EDT	Severe Thunderstorm Warning	CTP	Centre	63 min
Jun 27, 3:53 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	67 min
Jun 27, 4:05 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	25 min
Jun 27, 4:06 PM EDT	Severe Thunderstorm Warning	CTP	Potter	54 min
Jun 27, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Snyder, Union	63 min
Jun 27, 4:21 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	54 min
Jun 27, 4:33 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	37 min
Jun 27, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	56 min
Jun 27, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Berks	39 min
Jun 27, 5:40 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	65 min
Jun 27, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	19 min
Jun 27, 6:28 PM EDT	Severe Thunderstorm Warning	CTP	York	62 min
Jun 27, 6:30 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Northampton	60 min
Jun 27, 7:13 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Montgomery	47 min
Jun 27, 7:59 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	31 min
Jul 2, 3:33 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	57 min
Jul 2, 4:48 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	57 min
Jul 2, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	Blair	54 min
Jul 2, 6:10 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	65 min
Jul 4, 1:27 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	63 min
Jul 4, 3:59 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	61 min
Jul 4, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	65 min
Jul 4, 5:22 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	23 min
Jul 4, 10:20 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	40 min
Jul 19, 1:47 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	58 min
Jul 19, 2:45 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	60 min
Jul 19, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	60 min
Jul 19, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	40 min
Jul 19, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Centre	55 min
Jul 19, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	61 min
Jul 19, 6:24 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	36 min
Jul 23, 12:08 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	52 min
Jul 23, 12:46 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	59 min
Jul 23, 12:52 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	23 min
Jul 23, 1:11 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	49 min
Jul 23, 1:17 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	58 min
Jul 23, 1:30 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	60 min
Jul 23, 1:36 PM EDT	Severe Thunderstorm Warning	CTP	Centre	54 min
Jul 23, 1:50 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	55 min
Jul 23, 2:00 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	60 min
Jul 23, 2:22 PM EDT	Severe Thunderstorm Warning	CTP	Union	23 min
Jul 23, 3:27 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	33 min
Jul 23, 3:36 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	54 min
Jul 23, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	61 min
Jul 23, 4:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	56 min
Jul 23, 4:05 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	55 min
Jul 23, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	66 min
Jul 26, 12:50 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	40 min
Jul 26, 1:51 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	39 min
Jul 26, 2:42 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	63 min
Jul 26, 4:14 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	61 min
Jul 26, 6:43 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	62 min
Jul 26, 7:29 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	61 min
Jul 26, 8:12 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	63 min
Jul 26, 10:47 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	28 min
Jul 27, 5:42 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	63 min
Jul 27, 6:22 PM EDT	Severe Thunderstorm Warning	CLE	Erie	53 min
Jul 28, 1:11 AM EDT	Severe Thunderstorm Warning	CLE	Erie	64 min
Jul 28, 9:54 AM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	51 min
Jul 28, 12:59 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	61 min
Jul 28, 1:52 PM EDT	Severe Thunderstorm Warning	CTP	Warren	38 min
Jul 28, 2:17 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	58 min
Jul 28, 3:41 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	64 min
Jul 28, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, York	56 min
Jul 28, 4:12 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	63 min
Jul 28, 5:02 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	58 min
Jul 28, 5:05 PM EDT	Severe Thunderstorm Warning	CLE	Erie	55 min
Jul 28, 5:13 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	62 min
Jul 28, 5:30 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	60 min
Jul 28, 6:26 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	49 min
Jul 28, 8:27 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	63 min
Jul 28, 10:54 PM EDT	Severe Thunderstorm Warning	CLE	Erie	66 min
Jul 29, 8:08 PM EDT	Severe Thunderstorm Warning	CLE	Erie	67 min
Jul 29, 8:21 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	84 min
Jul 29, 9:06 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	54 min
Jul 29, 9:58 PM EDT	Severe Thunderstorm Warning	CTP	Warren	62 min
Jul 31, 5:53 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	52 min
Jul 31, 6:57 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	63 min
Aug 1, 4:50 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	55 min
Aug 2, 2:32 PM EDT	Severe Thunderstorm Warning	CTP	Warren	28 min
Aug 2, 3:15 PM EDT	Severe Thunderstorm Warning	CTP	McKean	45 min
Aug 2, 4:02 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	28 min
Aug 2, 4:32 PM EDT	Severe Thunderstorm Warning	CTP	York	58 min
Aug 2, 4:46 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	74 min
Aug 2, 5:36 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	24 min
Aug 2, 5:48 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	27 min
Aug 2, 6:31 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	59 min
Aug 2, 7:05 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	55 min
Aug 2, 7:25 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	35 min
Aug 2, 7:50 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	55 min
Aug 2, 8:50 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	55 min
Aug 3, 12:46 AM EDT	Severe Thunderstorm Warning	CTP	York	59 min
Aug 3, 1:36 AM EDT	Severe Thunderstorm Warning	PBZ	Clarion	54 min
Aug 3, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks	57 min
Aug 3, 4:24 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	66 min
Aug 3, 5:13 PM EDT	Severe Thunderstorm Warning	PHI	Berks	62 min
Aug 3, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester	61 min
Aug 3, 5:16 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	59 min
Aug 3, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	59 min
Aug 3, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	48 min
Aug 3, 6:12 PM EDT	Severe Thunderstorm Warning	PHI	Chester	63 min
Aug 5, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	58 min
Aug 5, 5:25 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	65 min
Aug 5, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Berks	65 min
Aug 12, 2:07 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	53 min
Aug 12, 2:52 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	53 min
Aug 12, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	64 min
Aug 12, 5:04 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	56 min
Aug 12, 7:41 PM EDT	Severe Thunderstorm Warning	CTP	Centre	49 min
Aug 12, 7:43 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	62 min
Aug 12, 8:11 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	64 min
Aug 14, 5:38 AM EDT	Severe Thunderstorm Warning	CTP	Lebanon	37 min
Aug 14, 3:45 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	60 min
Aug 14, 4:44 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	31 min
Aug 15, 7:58 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	62 min
Aug 18, 4:37 PM EDT	Severe Thunderstorm Warning	CTP	Blair	38 min
Aug 22, 4:20 PM EDT	Severe Thunderstorm Warning	CTP	Elk	55 min
Aug 22, 4:37 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	38 min
Aug 22, 4:55 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	65 min
Aug 22, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	53 min
Aug 22, 5:48 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	57 min
Aug 22, 6:27 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	33 min
Aug 22, 6:59 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wyoming	46 min
Aug 22, 7:20 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	55 min
Aug 22, 8:00 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	60 min
Aug 22, 8:12 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	63 min
Aug 22, 8:59 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	31 min
Aug 22, 9:27 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	33 min
Aug 23, 6:45 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	60 min
Aug 23, 8:18 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	57 min
Aug 23, 11:04 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	56 min
Aug 24, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, York	44 min
Aug 24, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	54 min
Aug 24, 7:01 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	29 min
Aug 24, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	24 min
Aug 24, 7:12 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	33 min
Aug 24, 7:42 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	33 min
Aug 24, 7:44 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery, Philadelphia	46 min
Sep 3, 3:21 PM EDT	Severe Thunderstorm Warning	CTP	Warren	54 min
Sep 3, 4:17 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	58 min
Sep 3, 4:18 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	57 min
Sep 3, 4:50 PM EDT	Severe Thunderstorm Warning	CTP	Warren	40 min
Sep 3, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	53 min
Sep 3, 6:46 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	59 min
Sep 18, 11:34 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	56 min
Sep 27, 4:08 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	67 min
Sep 27, 7:42 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Dauphin, Lebanon, York	63 min
Sep 27, 8:08 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	52 min
Oct 3, 7:12 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	48 min
Oct 3, 7:24 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	51 min
Oct 3, 7:44 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	46 min
Oct 3, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	47 min
Nov 10, 7:48 PM EST	Severe Thunderstorm Warning	PBZ	Mercer	57 min
Nov 10, 8:04 PM EST	Severe Thunderstorm Warning	CLE	Crawford	56 min
Nov 10, 8:24 PM EST	Severe Thunderstorm Warning	PBZ	Venango	66 min
Nov 10, 8:31 PM EST	Severe Thunderstorm Warning	PBZ	Lawrence	59 min
Nov 10, 8:39 PM EST	Severe Thunderstorm Warning	CLE	Erie	51 min
Nov 10, 8:44 PM EST	Severe Thunderstorm Warning	CTP	Warren	61 min
Nov 10, 9:11 PM EST	Severe Thunderstorm Warning	PBZ	Mercer	34 min
Nov 10, 9:23 PM EST	Severe Thunderstorm Warning	PBZ	Venango	67 min
Nov 10, 9:55 PM EST	Severe Thunderstorm Warning	PBZ	Beaver, Washington	65 min
Nov 10, 10:08 PM EST	Severe Thunderstorm Warning	CTP	Warren	22 min
Nov 10, 10:08 PM EST	Severe Thunderstorm Warning	CTP	Warren	22 min
Nov 10, 10:08 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny	52 min
Nov 10, 10:14 PM EST	Severe Thunderstorm Warning	PBZ	Butler	61 min
Nov 10, 10:44 PM EST	Severe Thunderstorm Warning	PBZ	Westmoreland	61 min
Nov 10, 10:47 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong	58 min

By county

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

27 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 2001 2003

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.