Alert archive / Pennsylvania / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Pennsylvania, 2001

410 severe thunderstorm warnings in 2001. 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 2001. Tap one for its archive.

Severe Thunderstorm Warnings: 410
Busiest month: July120 severe thunderstorm warnings
Busiest day: July 1, 200151 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
Mar 13, 9:56 PM EST	Severe Thunderstorm Warning	CTP	Lancaster, York	64 min
Apr 7, 9:41 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Mercer, Venango	64 min
Apr 8, 2:50 AM EDT	Severe Thunderstorm Warning	PBZ	Venango	40 min
Apr 8, 2:51 AM EDT	Severe Thunderstorm Warning	CTP	Cambria	39 min
Apr 8, 5:02 AM EDT	Severe Thunderstorm Warning	PBZ	Clarion	28 min
Apr 8, 5:08 AM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	52 min
Apr 9, 2:58 AM EDT	Severe Thunderstorm Warning	PBZ	Washington	47 min
Apr 9, 12:53 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	52 min
Apr 9, 12:57 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	63 min
Apr 9, 1:09 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	51 min
Apr 9, 1:45 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	60 min
Apr 9, 1:52 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	53 min
Apr 9, 2:06 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	54 min
Apr 9, 2:30 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	60 min
Apr 9, 3:11 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	49 min
Apr 9, 3:22 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	23 min
Apr 9, 3:32 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	58 min
Apr 9, 3:44 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	61 min
Apr 9, 3:46 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	29 min
Apr 9, 4:01 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	59 min
Apr 9, 4:04 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	56 min
Apr 9, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	53 min
Apr 9, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	65 min
Apr 9, 4:18 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	57 min
Apr 9, 4:18 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	57 min
Apr 9, 4:32 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	73 min
Apr 9, 4:40 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	35 min
Apr 9, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Westmoreland	60 min
Apr 9, 4:55 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	65 min
Apr 9, 5:11 PM EDT	Severe Thunderstorm Warning	BGM	Pike	34 min
Apr 9, 5:11 PM EDT	Severe Thunderstorm Warning	CTP	Blair	79 min
Apr 9, 5:32 PM EDT	Severe Thunderstorm Warning	CTP	Potter	73 min
Apr 9, 5:39 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	66 min
Apr 9, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	61 min
Apr 9, 5:47 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	58 min
Apr 9, 5:51 PM EDT	Severe Thunderstorm Warning	BGM	Pike	39 min
Apr 9, 5:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	53 min
Apr 9, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	37 min
Apr 9, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Centre	36 min
Apr 9, 5:56 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	79 min
Apr 9, 6:03 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	57 min
Apr 9, 6:15 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	60 min
Apr 9, 6:20 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	55 min
Apr 9, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	49 min
Apr 9, 6:27 PM EDT	Severe Thunderstorm Warning	CTP	Perry	63 min
Apr 9, 6:30 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	45 min
Apr 9, 6:47 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin	73 min
Apr 9, 6:47 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	73 min
Apr 9, 7:06 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Northumberland	69 min
Apr 9, 7:08 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	97 min
Apr 9, 7:17 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	58 min
Apr 9, 7:25 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	80 min
Apr 9, 7:28 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	62 min
Apr 9, 8:02 PM EDT	Severe Thunderstorm Warning	PHI	Chester	43 min
Apr 9, 8:09 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	36 min
Apr 9, 8:09 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	36 min
Apr 9, 8:37 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	38 min
May 11, 8:40 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	65 min
May 25, 7:48 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	42 min
May 25, 9:51 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	39 min
May 25, 10:02 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	43 min
May 26, 2:58 PM EDT	Severe Thunderstorm Warning	CTP	McKean	62 min
May 26, 6:14 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	31 min
May 26, 6:22 PM EDT	Severe Thunderstorm Warning	CTP	Blair	23 min
May 26, 6:43 PM EDT	Severe Thunderstorm Warning	CTP	Blair	32 min
May 27, 1:23 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	37 min
May 27, 2:27 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	33 min
May 27, 3:00 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Northumberland	30 min
May 27, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	46 min
May 29, 1:35 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	55 min
Jun 2, 11:31 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	59 min
Jun 11, 4:39 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	66 min
Jun 11, 6:01 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	59 min
Jun 11, 6:25 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	65 min
Jun 11, 7:55 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	65 min
Jun 11, 9:00 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	45 min
Jun 11, 10:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	45 min
Jun 11, 10:22 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	53 min
Jun 12, 2:56 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	64 min
Jun 12, 3:36 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	69 min
Jun 12, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	74 min
Jun 12, 4:06 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	69 min
Jun 12, 4:20 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	25 min
Jun 12, 4:29 PM EDT	Severe Thunderstorm Warning	CTP	Centre	76 min
Jun 12, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Union	62 min
Jun 12, 5:12 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	33 min
Jun 12, 5:28 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	47 min
Jun 12, 5:32 PM EDT	Severe Thunderstorm Warning	CTP	Adams	58 min
Jun 12, 5:43 PM EDT	Severe Thunderstorm Warning	CTP	Juniata	62 min
Jun 12, 5:52 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	53 min
Jun 12, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Snyder	66 min
Jun 12, 5:58 PM EDT	Severe Thunderstorm Warning	CTP	Perry	62 min
Jun 12, 6:14 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	61 min
Jun 12, 6:16 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	59 min
Jun 12, 6:30 PM EDT	Severe Thunderstorm Warning	CTP	Adams	60 min
Jun 12, 6:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks	60 min
Jun 12, 8:04 PM EDT	Severe Thunderstorm Warning	CTP	York	26 min
Jun 13, 6:42 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	33 min
Jun 20, 12:49 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	56 min
Jun 20, 1:02 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	73 min
Jun 20, 1:12 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	78 min
Jun 20, 2:24 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wyoming	66 min
Jun 20, 2:36 PM EDT	Severe Thunderstorm Warning	CTP	Juniata	54 min
Jun 20, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Montour, Northumberland, Union	62 min
Jun 20, 3:02 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	58 min
Jun 20, 3:09 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	81 min
Jun 20, 3:23 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	37 min
Jun 20, 3:27 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	63 min
Jun 20, 3:39 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	36 min
Jun 20, 3:40 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Perry	65 min
Jun 20, 4:12 PM EDT	Severe Thunderstorm Warning	BGM	Pike	78 min
Jun 20, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	60 min
Jun 20, 4:28 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	62 min
Jun 20, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	55 min
Jun 20, 4:38 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	67 min
Jun 20, 4:45 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	15 min
Jun 20, 4:49 PM EDT	Severe Thunderstorm Warning	CTP	York	71 min
Jun 20, 4:53 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	37 min
Jun 20, 4:56 PM EDT	Severe Thunderstorm Warning	CTP	McKean	64 min
Jun 20, 5:00 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	30 min
Jun 20, 5:05 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	25 min
Jun 20, 5:29 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	76 min
Jun 20, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	66 min
Jun 20, 7:00 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	45 min
Jun 20, 7:40 PM EDT	Severe Thunderstorm Warning	CTP	Montour	20 min
Jun 20, 7:54 PM EDT	Severe Thunderstorm Warning	CTP	Elk	36 min
Jun 21, 3:37 PM EDT	Severe Thunderstorm Warning	CTP	Blair	53 min
Jun 21, 4:13 PM EDT	Severe Thunderstorm Warning	CLE	Erie	62 min
Jun 21, 6:01 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	44 min
Jun 21, 7:00 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	45 min
Jun 21, 7:20 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	40 min
Jun 21, 7:53 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	67 min
Jun 21, 8:12 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	63 min
Jun 21, 8:12 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	63 min
Jun 21, 9:55 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	65 min
Jun 21, 10:32 PM EDT	Severe Thunderstorm Warning	CTP	Elk	58 min
Jun 21, 10:34 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	71 min
Jun 21, 10:47 PM EDT	Severe Thunderstorm Warning	CTP	McKean	58 min
Jun 21, 11:25 PM EDT	Severe Thunderstorm Warning	CTP	Cameron	65 min
Jun 22, 3:09 AM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour	36 min
Jun 22, 11:30 AM EDT	Severe Thunderstorm Warning	CTP	York	60 min
Jun 22, 1:30 PM EDT	Severe Thunderstorm Warning	PHI	Berks	30 min
Jun 22, 1:53 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	37 min
Jun 22, 2:07 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	23 min
Jun 22, 2:12 PM EDT	Severe Thunderstorm Warning	PHI	Berks	33 min
Jun 22, 2:43 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	47 min
Jun 22, 3:00 PM EDT	Severe Thunderstorm Warning	PHI	Berks	45 min
Jun 22, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	25 min
Jun 22, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	York	49 min
Jun 22, 5:18 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	27 min
Jun 22, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	64 min
Jun 27, 7:26 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	49 min
Jun 30, 12:57 PM EDT	Severe Thunderstorm Warning	CTP	York	33 min
Jun 30, 2:15 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	60 min
Jun 30, 5:04 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	41 min
Jun 30, 5:24 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	51 min
Jun 30, 7:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	37 min
Jun 30, 8:15 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	45 min
Jun 30, 10:53 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
Jul 1, 11:35 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer	55 min
Jul 1, 11:51 AM EDT	Severe Thunderstorm Warning	CTP	Tioga	54 min
Jul 1, 12:02 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Venango	58 min
Jul 1, 12:09 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	66 min
Jul 1, 12:24 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	66 min
Jul 1, 12:33 PM EDT	Severe Thunderstorm Warning	CTP	Elk	57 min
Jul 1, 12:40 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	65 min
Jul 1, 12:42 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Potter	63 min
Jul 1, 12:47 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	58 min
Jul 1, 12:49 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	56 min
Jul 1, 1:00 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	60 min
Jul 1, 1:09 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	36 min
Jul 1, 1:10 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	65 min
Jul 1, 1:20 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	55 min
Jul 1, 1:20 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	25 min
Jul 1, 1:26 PM EDT	Severe Thunderstorm Warning	PHI	Berks	64 min
Jul 1, 1:28 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	62 min
Jul 1, 1:36 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	54 min
Jul 1, 1:48 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	42 min
Jul 1, 1:50 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	55 min
Jul 1, 1:53 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	67 min
Jul 1, 1:53 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	67 min
Jul 1, 2:00 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	60 min
Jul 1, 2:03 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	42 min
Jul 1, 2:09 PM EDT	Severe Thunderstorm Warning	CTP	Centre	66 min
Jul 1, 2:10 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	35 min
Jul 1, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	62 min
Jul 1, 2:14 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	61 min
Jul 1, 2:29 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	61 min
Jul 1, 2:30 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	45 min
Jul 1, 2:36 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	54 min
Jul 1, 2:43 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	62 min
Jul 1, 2:44 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	61 min
Jul 1, 2:57 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	63 min
Jul 1, 2:57 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	63 min
Jul 1, 3:02 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	58 min
Jul 1, 3:12 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	63 min
Jul 1, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	61 min
Jul 1, 3:28 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Huntingdon	62 min
Jul 1, 3:53 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	67 min
Jul 1, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin	62 min
Jul 1, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	39 min
Jul 1, 4:08 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	37 min
Jul 1, 4:32 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	73 min
Jul 1, 4:35 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Montgomery	40 min
Jul 1, 4:37 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	68 min
Jul 1, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	45 min
Jul 1, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	45 min
Jul 1, 6:31 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	29 min
Jul 4, 4:47 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	58 min
Jul 5, 1:08 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	67 min
Jul 5, 1:54 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	66 min
Jul 5, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	63 min
Jul 5, 2:55 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	65 min
Jul 5, 3:05 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	55 min
Jul 5, 3:59 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	46 min
Jul 10, 7:37 AM EDT	Severe Thunderstorm Warning	CTP	McKean	53 min
Jul 10, 1:24 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	36 min
Jul 10, 1:41 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	79 min
Jul 10, 2:15 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	30 min
Jul 10, 2:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	47 min
Jul 10, 2:35 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, York	40 min
Jul 10, 2:45 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	60 min
Jul 10, 2:46 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	44 min
Jul 10, 2:59 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	46 min
Jul 10, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	41 min
Jul 10, 3:06 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	24 min
Jul 10, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	49 min
Jul 10, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	43 min
Jul 10, 3:24 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	66 min
Jul 10, 3:31 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	44 min
Jul 10, 3:34 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	41 min
Jul 10, 3:35 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	40 min
Jul 10, 3:49 PM EDT	Severe Thunderstorm Warning	CTP	Adams	41 min
Jul 10, 3:54 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	51 min
Jul 10, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	44 min
Jul 10, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	38 min
Jul 10, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
Jul 10, 4:37 PM EDT	Severe Thunderstorm Warning	CTP	Centre	53 min
Jul 10, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	52 min
Jul 10, 4:59 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	46 min
Jul 10, 5:01 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington	59 min
Jul 10, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Snyder	56 min
Jul 10, 5:40 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	65 min
Jul 10, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	35 min
Jul 10, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	64 min
Jul 10, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	45 min
Jul 10, 6:21 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	39 min
Jul 10, 6:42 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	48 min
Jul 10, 6:43 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	47 min
Jul 10, 7:06 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	54 min
Jul 10, 7:23 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	67 min
Jul 10, 8:09 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	51 min
Jul 10, 11:48 PM EDT	Severe Thunderstorm Warning	CTP	McKean	57 min
Jul 11, 12:24 AM EDT	Severe Thunderstorm Warning	CTP	Cameron	51 min
Jul 11, 2:09 AM EDT	Severe Thunderstorm Warning	PBZ	Forest	36 min
Jul 11, 2:15 AM EDT	Severe Thunderstorm Warning	CTP	Elk	45 min
Jul 11, 3:36 AM EDT	Severe Thunderstorm Warning	CTP	Centre	54 min
Jul 11, 3:45 AM EDT	Severe Thunderstorm Warning	CTP	Lycoming	45 min
Jul 11, 4:08 AM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	67 min
Jul 11, 4:08 AM EDT	Severe Thunderstorm Warning	CTP	Union	67 min
Jul 11, 4:10 AM EDT	Severe Thunderstorm Warning	BGM	Luzerne	65 min
Jul 11, 4:57 AM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	33 min
Jul 11, 5:17 AM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	58 min
Jul 11, 5:20 AM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	40 min
Jul 11, 6:01 AM EDT	Severe Thunderstorm Warning	PHI	Monroe	44 min
Jul 17, 4:01 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	44 min
Jul 17, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Union	55 min
Jul 17, 8:19 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	41 min
Jul 17, 8:34 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	56 min
Jul 17, 9:41 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	34 min
Jul 19, 5:09 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	51 min
Jul 24, 4:32 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	58 min
Jul 25, 5:27 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	48 min
Jul 25, 5:38 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	67 min
Jul 25, 5:49 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	26 min
Jul 25, 6:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	50 min
Jul 25, 9:46 PM EDT	Severe Thunderstorm Warning	CTP	Centre	29 min
Aug 1, 1:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	15 min
Aug 4, 4:26 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	19 min
Aug 4, 4:53 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	22 min
Aug 4, 5:06 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	24 min
Aug 4, 5:10 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	35 min
Aug 4, 5:30 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	30 min
Aug 4, 6:19 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	41 min
Aug 4, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	66 min
Aug 4, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	61 min
Aug 8, 5:58 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	32 min
Aug 8, 7:27 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	63 min
Aug 9, 6:46 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	44 min
Aug 10, 12:25 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	65 min
Aug 10, 1:13 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	32 min
Aug 10, 1:21 PM EDT	Severe Thunderstorm Warning	PHI	Berks	24 min
Aug 10, 1:39 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	66 min
Aug 10, 1:45 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	30 min
Aug 10, 2:14 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	61 min
Aug 13, 2:17 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	58 min
Aug 13, 3:35 PM EDT	Severe Thunderstorm Warning	CTP	York	55 min
Aug 16, 4:11 PM EDT	Severe Thunderstorm Warning	CTP	Potter	34 min
Aug 16, 4:21 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	39 min
Aug 16, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	59 min
Aug 16, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Centre	44 min
Aug 16, 4:39 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	66 min
Aug 16, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	47 min
Aug 16, 6:15 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	60 min
Aug 16, 6:51 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	54 min
Aug 16, 8:12 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	63 min
Aug 16, 9:19 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	56 min
Aug 16, 9:34 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	41 min
Aug 16, 9:59 PM EDT	Severe Thunderstorm Warning	CTP	Centre	61 min
Aug 19, 3:32 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	43 min
Aug 19, 3:33 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest	57 min
Aug 19, 3:36 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	54 min
Aug 19, 3:54 PM EDT	Severe Thunderstorm Warning	CTP	Blair	36 min
Aug 19, 3:57 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	63 min
Aug 19, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	53 min
Aug 19, 4:14 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	31 min
Aug 19, 4:18 PM EDT	Severe Thunderstorm Warning	CTP	McKean	57 min
Aug 19, 4:20 PM EDT	Severe Thunderstorm Warning	CTP	Centre	70 min
Aug 19, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	19 min
Aug 19, 4:43 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	62 min
Aug 19, 4:56 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	64 min
Aug 19, 5:22 PM EDT	Severe Thunderstorm Warning	CTP	Centre	53 min
Aug 19, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	65 min
Aug 19, 5:29 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	46 min
Aug 19, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Centre	48 min
Aug 19, 6:20 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	55 min
Aug 19, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Union	46 min
Aug 19, 6:45 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	45 min
Aug 19, 6:51 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	24 min
Aug 19, 7:30 PM EDT	Severe Thunderstorm Warning	CTP	Union	60 min
Aug 19, 7:55 PM EDT	Severe Thunderstorm Warning	CTP	Montour, Northumberland	35 min
Aug 19, 8:36 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	69 min
Aug 26, 2:03 PM EDT	Severe Thunderstorm Warning	CLE	Erie	57 min
Aug 26, 7:52 PM EDT	Severe Thunderstorm Warning	CTP	Potter	53 min
Aug 26, 8:07 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	53 min
Aug 26, 9:00 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	60 min
Aug 28, 11:19 AM EDT	Severe Thunderstorm Warning	CTP	Potter	56 min
Aug 28, 11:50 AM EDT	Severe Thunderstorm Warning	CTP	Tioga	55 min
Aug 28, 12:08 PM EDT	Severe Thunderstorm Warning	CTP	Potter	67 min
Aug 28, 1:11 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	64 min
Aug 28, 1:39 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver	66 min
Aug 28, 1:53 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	52 min
Aug 28, 1:57 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	78 min
Aug 28, 2:19 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	56 min
Aug 28, 2:19 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	26 min
Aug 28, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	64 min
Aug 28, 2:49 PM EDT	Severe Thunderstorm Warning	CTP	Blair	56 min
Aug 28, 3:07 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	53 min
Aug 28, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	58 min
Aug 28, 3:21 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	69 min
Aug 28, 3:36 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	39 min
Aug 28, 3:47 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	73 min
Aug 28, 3:48 PM EDT	Severe Thunderstorm Warning	CTP	Blair	42 min
Aug 28, 3:52 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	38 min
Aug 28, 4:25 PM EDT	Severe Thunderstorm Warning	CTP	Perry	65 min
Aug 28, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	60 min
Aug 28, 4:40 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	50 min
Aug 28, 4:43 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	47 min
Aug 28, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	26 min
Aug 28, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	41 min
Aug 28, 6:15 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	60 min
Aug 30, 8:15 PM EDT	Severe Thunderstorm Warning	CTP	Perry	60 min
Aug 31, 10:50 AM EDT	Severe Thunderstorm Warning	CTP	McKean	70 min
Aug 31, 2:12 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	63 min
Aug 31, 2:54 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	66 min
Aug 31, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	York	64 min
Aug 31, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	62 min
Aug 31, 4:03 PM EDT	Severe Thunderstorm Warning	CTP	Perry	72 min
Aug 31, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	78 min
Aug 31, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	59 min
Aug 31, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	55 min
Aug 31, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	Snyder, Union	34 min
Aug 31, 5:42 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	78 min
Aug 31, 6:47 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	28 min
Aug 31, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Berks	31 min
Aug 31, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	24 min
Aug 31, 7:25 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	50 min
Sep 4, 2:02 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Union	58 min
Sep 4, 2:37 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	53 min
Sep 4, 3:01 PM EDT	Severe Thunderstorm Warning	PHI	Berks	59 min
Sep 4, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Chester	61 min
Sep 4, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	49 min
Sep 4, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Chester	52 min
Sep 10, 3:07 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	53 min
Sep 13, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	56 min
Sep 13, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	41 min
Sep 13, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	63 min
Sep 13, 6:23 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	67 min
Sep 13, 6:39 PM EDT	Severe Thunderstorm Warning	BGM	Pike	66 min
Sep 13, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	31 min
Sep 13, 7:18 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	57 min
Sep 13, 7:40 PM EDT	Severe Thunderstorm Warning	CTP	Centre	65 min
Sep 13, 8:46 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	29 min
Sep 13, 9:55 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	35 min
Sep 24, 6:22 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	53 min
Sep 24, 7:57 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	63 min
Sep 24, 8:09 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	66 min
Sep 24, 9:17 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Northumberland, Schuylkill	58 min
Sep 24, 9:43 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	62 min
Oct 16, 2:07 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	53 min
Oct 16, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	49 min
Oct 16, 4:02 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	28 min
Oct 16, 4:36 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	24 min
Oct 16, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Sullivan	23 min
Oct 21, 4:41 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	49 min
Oct 21, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Warren	65 min
Oct 24, 10:56 PM EDT	Severe Thunderstorm Warning	CLE	Erie	64 min
Oct 25, 12:31 AM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	59 min
Oct 25, 2:25 AM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	35 min
Nov 30, 12:50 PM EST	Severe Thunderstorm Warning	CTP	Cambria	55 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 2000 2002

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.