Alert archive / Pennsylvania / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Pennsylvania, 2017

551 severe thunderstorm warnings in 2017. 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 2017. Tap one for its archive.

Severe Thunderstorm Warnings: 551
Busiest month: August184 severe thunderstorm warnings
Busiest day: August 4, 201745 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
Jan 12, 1:34 PM EST	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	41 min
Jan 12, 1:56 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Lawrence, Mercer, Venango	34 min
Jan 12, 2:14 PM EST	Severe Thunderstorm Warning	PBZ	Beaver	46 min
Jan 12, 2:15 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Beaver, Butler, Clarion, Lawrence, Mercer	45 min
Jan 12, 2:24 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Jefferson, Venango	51 min
Feb 12, 7:02 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Indiana, Lawrence and 2 more	58 min
Feb 12, 7:59 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Indiana, Washington, Westmoreland	61 min
Feb 12, 8:11 PM EST	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	64 min
Feb 12, 8:59 PM EST	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	61 min
Feb 12, 9:37 PM EST	Severe Thunderstorm Warning	CTP	Franklin	53 min
Feb 12, 11:10 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	50 min
Feb 25, 2:05 PM EST	Severe Thunderstorm Warning	CTP	Lancaster, York	40 min
Feb 25, 2:11 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	49 min
Feb 25, 2:32 PM EST	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	88 min
Feb 25, 2:37 PM EST	Severe Thunderstorm Warning	CTP	Adams, York	68 min
Feb 25, 2:47 PM EST	Severe Thunderstorm Warning	PHI	Berks	43 min
Feb 25, 3:06 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wayne	24 min
Feb 25, 3:08 PM EST	Severe Thunderstorm Warning	CTP	Lancaster	67 min
Feb 25, 3:15 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Wayne	30 min
Feb 25, 3:19 PM EST	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	41 min
Feb 25, 3:26 PM EST	Severe Thunderstorm Warning	PHI	Berks, Chester	64 min
Feb 25, 3:45 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wayne	60 min
Feb 25, 4:01 PM EST	Severe Thunderstorm Warning	BGM	Wayne	44 min
Feb 25, 4:04 PM EST	Severe Thunderstorm Warning	PHI	Chester, Delaware	41 min
Feb 25, 4:05 PM EST	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe	40 min
Feb 25, 4:17 PM EST	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Monroe and 3 more	43 min
Feb 25, 4:19 PM EST	Severe Thunderstorm Warning	BGM	Pike, Wayne	56 min
Feb 25, 4:35 PM EST	Severe Thunderstorm Warning	BGM	Wayne	55 min
Feb 25, 4:40 PM EST	Severe Thunderstorm Warning	PHI	Delaware, Montgomery, Philadelphia	50 min
Feb 25, 4:54 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Monroe	51 min
Feb 25, 4:58 PM EST	Severe Thunderstorm Warning	BGM	Pike	47 min
Feb 25, 5:17 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	43 min
Mar 1, 2:10 AM EST	Severe Thunderstorm Warning	CLE	Crawford, Erie	80 min
Mar 1, 5:02 AM EST	Severe Thunderstorm Warning	PBZ	Fayette	28 min
Mar 1, 5:45 AM EST	Severe Thunderstorm Warning	CLE	Crawford, Erie	75 min
Mar 1, 8:15 AM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	35 min
Mar 1, 10:17 AM EST	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	43 min
Mar 1, 11:11 AM EST	Severe Thunderstorm Warning	PBZ	Fayette	49 min
Mar 1, 12:06 PM EST	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	24 min
Mar 1, 1:35 PM EST	Severe Thunderstorm Warning	CTP	Adams, Lancaster, York	70 min
Mar 1, 2:00 PM EST	Severe Thunderstorm Warning	PHI	Chester, Delaware	45 min
Mar 1, 2:09 PM EST	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	51 min
Mar 1, 4:49 PM EST	Severe Thunderstorm Warning	CLE	Crawford, Erie	43 min
Mar 1, 5:22 PM EST	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	23 min
Apr 16, 3:49 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer, Venango	41 min
Apr 16, 4:54 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wayne	51 min
Apr 16, 5:17 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	58 min
Apr 16, 5:24 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	51 min
Apr 16, 5:40 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	65 min
Apr 16, 5:42 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Indiana, Westmoreland	35 min
Apr 16, 5:47 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	43 min
Apr 16, 6:15 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	45 min
Apr 16, 6:38 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield, Huntingdon	20 min
Apr 16, 6:53 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	52 min
Apr 20, 12:41 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	49 min
Apr 20, 2:27 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	48 min
Apr 20, 2:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Westmoreland	47 min
Apr 20, 3:04 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	41 min
Apr 20, 3:14 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	46 min
Apr 20, 3:58 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	17 min
Apr 20, 6:37 PM EDT	Severe Thunderstorm Warning	CLE	Erie	38 min
Apr 20, 7:08 PM EDT	Severe Thunderstorm Warning	CTP	Warren	67 min
Apr 20, 8:29 PM EDT	Severe Thunderstorm Warning	CTP	McKean	31 min
Apr 20, 8:40 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	50 min
Apr 20, 9:38 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest	22 min
Apr 20, 9:41 PM EDT	Severe Thunderstorm Warning	CTP	Elk	34 min
Apr 20, 10:13 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clinton, Elk, Potter	62 min
Apr 27, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	47 min
Apr 27, 7:41 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
Apr 27, 8:19 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	41 min
Apr 27, 8:59 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Westmoreland	46 min
Apr 29, 4:20 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery, Philadelphia	40 min
Apr 29, 4:32 AM EDT	Severe Thunderstorm Warning	PHI	Bucks	43 min
Apr 30, 4:41 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	35 min
Apr 30, 5:49 PM EDT	Severe Thunderstorm Warning	CTP	Blair	56 min
Apr 30, 6:19 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	56 min
Apr 30, 7:10 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	65 min
May 1, 1:22 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Greene, Washington	53 min
May 1, 1:35 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence, Mercer	55 min
May 1, 1:45 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	60 min
May 1, 1:47 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	43 min
May 1, 2:05 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence, Mercer, Venango and 1 more	55 min
May 1, 2:11 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Greene, Washington	49 min
May 1, 2:22 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	53 min
May 1, 2:26 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Mercer, Venango	49 min
May 1, 2:37 PM EDT	Severe Thunderstorm Warning	CTP	Warren	68 min
May 1, 2:47 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Clarion, Indiana, Venango and 1 more	58 min
May 1, 2:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	66 min
May 1, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Forest, Jefferson, Venango	65 min
May 1, 3:33 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	87 min
May 1, 3:34 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson, Westmoreland	56 min
May 1, 3:43 PM EDT	Severe Thunderstorm Warning	CTP	Warren	17 min
May 1, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	94 min
May 1, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Potter	68 min
May 1, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	113 min
May 1, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	29 min
May 1, 5:03 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	41 min
May 1, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	84 min
May 1, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	95 min
May 1, 5:35 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield, Somerset	25 min
May 1, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	61 min
May 1, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	69 min
May 1, 6:24 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	66 min
May 1, 6:31 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	59 min
May 1, 6:36 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Snyder, Union	84 min
May 1, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	46 min
May 1, 6:52 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder	68 min
May 1, 7:02 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	43 min
May 1, 7:05 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	55 min
May 1, 7:14 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	61 min
May 1, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	61 min
May 1, 7:49 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming	41 min
May 1, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Snyder	21 min
May 1, 8:29 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming	61 min
May 1, 8:29 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton, Huntingdon	46 min
May 1, 8:39 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Sullivan	36 min
May 1, 8:51 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	39 min
May 1, 9:10 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	54 min
May 1, 9:24 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	51 min
May 1, 9:55 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Snyder	80 min
May 5, 4:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	38 min
May 5, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	39 min
May 5, 6:59 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	46 min
May 5, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	23 min
May 5, 7:53 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	38 min
May 18, 3:40 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	50 min
May 18, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	38 min
May 18, 5:07 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	38 min
May 18, 5:11 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest	19 min
May 18, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	York	54 min
May 18, 6:19 PM EDT	Severe Thunderstorm Warning	CTP	Elk	41 min
May 18, 8:18 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	42 min
May 19, 5:12 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	48 min
May 28, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	36 min
May 28, 4:01 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	44 min
May 28, 4:12 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	33 min
May 28, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	30 min
May 30, 12:31 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	44 min
May 30, 12:34 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton	56 min
May 30, 12:39 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	51 min
May 30, 12:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	28 min
May 30, 1:04 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	25 min
May 30, 1:14 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	61 min
May 30, 1:22 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	53 min
May 30, 1:25 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	50 min
May 30, 1:27 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	25 min
May 30, 1:45 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	60 min
May 30, 2:00 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	19 min
May 30, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	41 min
May 30, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	62 min
May 30, 2:17 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	31 min
May 30, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton	63 min
May 30, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	32 min
May 30, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	34 min
May 30, 3:13 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cumberland, Franklin, Fulton, Huntingdon, Perry	77 min
May 31, 2:58 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	47 min
May 31, 3:44 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	31 min
May 31, 4:06 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Washington, Westmoreland	39 min
May 31, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	38 min
May 31, 7:19 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	41 min
May 31, 7:59 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	46 min
Jun 5, 2:02 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	58 min
Jun 13, 2:15 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	31 min
Jun 13, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	45 min
Jun 13, 3:46 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	44 min
Jun 13, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	51 min
Jun 13, 4:05 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	25 min
Jun 13, 4:33 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	42 min
Jun 13, 4:42 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	48 min
Jun 13, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	45 min
Jun 13, 5:29 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	18 min
Jun 13, 5:48 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Huntingdon	57 min
Jun 13, 6:43 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	62 min
Jun 15, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	30 min
Jun 15, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	30 min
Jun 15, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Butler, Westmoreland	45 min
Jun 15, 5:22 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	38 min
Jun 15, 5:47 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	88 min
Jun 15, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk	78 min
Jun 15, 6:23 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	67 min
Jun 15, 6:49 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	26 min
Jun 15, 6:49 PM EDT	Severe Thunderstorm Warning	CTP	Blair	86 min
Jun 15, 6:59 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	83 min
Jun 16, 2:51 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	39 min
Jun 16, 3:17 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	28 min
Jun 16, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	18 min
Jun 18, 1:31 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	44 min
Jun 18, 2:40 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	65 min
Jun 18, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	34 min
Jun 18, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	35 min
Jun 18, 3:14 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Forest, Mercer, Venango	46 min
Jun 18, 3:27 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	33 min
Jun 18, 3:30 PM EDT	Severe Thunderstorm Warning	CTP	Warren	60 min
Jun 18, 3:57 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Jefferson, Venango	48 min
Jun 18, 4:14 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	46 min
Jun 18, 4:24 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	51 min
Jun 18, 4:57 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	48 min
Jun 18, 5:47 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming, Potter, Tioga	58 min
Jun 18, 6:10 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	50 min
Jun 18, 6:37 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	68 min
Jun 18, 6:55 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	35 min
Jun 18, 7:09 PM EDT	Severe Thunderstorm Warning	CTP	Warren	66 min
Jun 18, 7:18 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Mifflin, Snyder	57 min
Jun 18, 7:35 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
Jun 18, 8:08 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	52 min
Jun 19, 11:12 AM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	63 min
Jun 19, 12:19 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Lebanon, Montour, Northumberland, Schuylkill	56 min
Jun 19, 12:40 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	65 min
Jun 19, 12:40 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, York	65 min
Jun 19, 12:55 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	50 min
Jun 19, 1:49 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, Schuylkill, York	56 min
Jun 19, 2:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks	52 min
Jun 19, 2:24 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	44 min
Jun 19, 2:45 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	30 min
Jun 19, 2:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Montgomery, Northampton	41 min
Jun 19, 2:53 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	52 min
Jun 19, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	48 min
Jun 19, 3:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	52 min
Jun 19, 3:35 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Monroe, Northampton	25 min
Jun 19, 3:53 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	37 min
Jun 19, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	49 min
Jun 19, 4:07 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	38 min
Jun 19, 4:07 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	38 min
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	41 min
Jun 19, 5:09 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	51 min
Jun 19, 6:18 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	27 min
Jun 19, 7:04 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	41 min
Jun 21, 4:02 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery	43 min
Jun 21, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	47 min
Jun 22, 12:36 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	24 min
Jun 22, 12:59 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	24 min
Jun 22, 2:55 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	35 min
Jun 23, 2:40 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Huntingdon	65 min
Jun 23, 3:09 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	36 min
Jun 23, 3:20 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	40 min
Jun 23, 3:47 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington, Westmoreland	43 min
Jun 23, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Perry, York	64 min
Jun 23, 3:59 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	46 min
Jun 23, 4:25 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	65 min
Jun 23, 4:30 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	30 min
Jun 23, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, York	55 min
Jun 23, 4:46 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington	44 min
Jun 23, 5:21 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	54 min
Jun 23, 5:27 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	33 min
Jun 23, 5:29 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	61 min
Jun 23, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Montgomery	57 min
Jun 23, 6:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	50 min
Jun 29, 9:16 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	44 min
Jun 29, 9:19 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer	41 min
Jun 29, 9:56 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer	49 min
Jun 29, 10:01 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Clarion, Mercer, Venango	44 min
Jun 29, 10:35 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	40 min
Jun 30, 3:00 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Wyoming	45 min
Jun 30, 3:52 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	53 min
Jun 30, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	25 min
Jul 1, 2:22 AM EDT	Severe Thunderstorm Warning	CTP	Elk	38 min
Jul 1, 1:24 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Juniata, Mifflin, Perry, Snyder, Union	81 min
Jul 1, 1:38 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	67 min
Jul 1, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	33 min
Jul 1, 2:50 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming	55 min
Jul 1, 3:41 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Northampton	49 min
Jul 1, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	51 min
Jul 1, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	44 min
Jul 1, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Montgomery, Northampton	52 min
Jul 1, 5:35 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	40 min
Jul 1, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	40 min
Jul 3, 6:01 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	44 min
Jul 4, 1:40 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Fulton, Huntingdon	65 min
Jul 7, 3:36 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	24 min
Jul 7, 4:01 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	44 min
Jul 10, 3:26 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	34 min
Jul 10, 3:44 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	46 min
Jul 11, 5:10 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Butler, Washington	50 min
Jul 13, 2:09 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Mifflin, Snyder	36 min
Jul 13, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Perry, Snyder	47 min
Jul 13, 4:15 PM EDT	Severe Thunderstorm Warning	PHI	Berks	60 min
Jul 13, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	40 min
Jul 13, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	35 min
Jul 13, 5:21 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	54 min
Jul 13, 5:44 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	46 min
Jul 14, 2:31 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	59 min
Jul 14, 3:18 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	12 min
Jul 14, 3:23 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	67 min
Jul 17, 12:42 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne, Wyoming	48 min
Jul 17, 12:57 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	33 min
Jul 17, 1:07 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	53 min
Jul 17, 1:15 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	45 min
Jul 17, 1:20 PM EDT	Severe Thunderstorm Warning	PHI	Berks	40 min
Jul 17, 1:24 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	66 min
Jul 17, 1:56 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	64 min
Jul 17, 2:26 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	64 min
Jul 17, 3:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	35 min
Jul 17, 3:27 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	48 min
Jul 17, 3:43 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	47 min
Jul 17, 4:38 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	52 min
Jul 17, 4:56 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Susquehanna, Wyoming	49 min
Jul 17, 5:26 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Wyoming	34 min
Jul 17, 6:31 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne, Wyoming	44 min
Jul 19, 7:32 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Perry	39 min
Jul 20, 2:49 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	56 min
Jul 20, 2:57 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	33 min
Jul 20, 3:29 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	61 min
Jul 20, 3:31 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	59 min
Jul 20, 3:44 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	46 min
Jul 20, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan, Tioga	92 min
Jul 20, 4:16 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	14 min
Jul 20, 4:28 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Susquehanna, Wyoming	32 min
Jul 20, 4:47 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne, Wyoming	28 min
Jul 20, 4:59 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming	46 min
Jul 20, 5:12 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	48 min
Jul 20, 5:35 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	55 min
Jul 20, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	53 min
Jul 20, 5:42 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	63 min
Jul 20, 5:44 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Pike, Wayne	46 min
Jul 20, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	53 min
Jul 20, 6:24 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	66 min
Jul 20, 6:29 PM EDT	Severe Thunderstorm Warning	BGM	Pike	16 min
Jul 20, 7:00 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Carbon, Lehigh, Northampton	60 min
Jul 20, 7:52 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	53 min
Jul 22, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	42 min
Jul 22, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	55 min
Jul 22, 6:07 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Northumberland, Perry, Schuylkill	53 min
Jul 22, 6:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	52 min
Jul 23, 3:22 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	38 min
Jul 23, 3:40 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	80 min
Jul 23, 5:07 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	53 min
Jul 23, 5:36 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, York	54 min
Jul 23, 6:00 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Montour, Northumberland	60 min
Jul 23, 6:59 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland	61 min
Jul 24, 2:34 AM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	41 min
Jul 24, 3:26 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Susquehanna, Wyoming	64 min
Jul 24, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Union	62 min
Jul 24, 4:35 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Pike, Wayne	25 min
Jul 24, 4:56 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Northumberland, Schuylkill	64 min
Jul 24, 5:31 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	59 min
Jul 24, 6:30 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	60 min
Jul 24, 7:26 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery	49 min
Jul 24, 7:50 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery, Philadelphia	25 min
Jul 24, 8:08 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	52 min
Aug 2, 1:22 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	38 min
Aug 2, 1:30 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	30 min
Aug 2, 1:34 PM EDT	Severe Thunderstorm Warning	CTP	Snyder	41 min
Aug 2, 1:59 PM EDT	Severe Thunderstorm Warning	CTP	York	61 min
Aug 2, 2:04 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	41 min
Aug 2, 2:09 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Montgomery	51 min
Aug 2, 2:22 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	26 min
Aug 2, 2:27 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	63 min
Aug 2, 2:48 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	27 min
Aug 2, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	41 min
Aug 2, 9:28 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Montour, Northumberland, Union	33 min
Aug 3, 4:00 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Huntingdon, Juniata, Perry	60 min
Aug 3, 4:27 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	48 min
Aug 3, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	38 min
Aug 3, 5:42 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	48 min
Aug 3, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	39 min
Aug 3, 7:17 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Huntingdon	58 min
Aug 3, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	41 min
Aug 3, 8:29 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	46 min
Aug 4, 11:23 AM EDT	Severe Thunderstorm Warning	CLE	Crawford	67 min
Aug 4, 11:58 AM EDT	Severe Thunderstorm Warning	CLE	Erie	62 min
Aug 4, 12:57 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	63 min
Aug 4, 1:26 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	49 min
Aug 4, 1:34 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	26 min
Aug 4, 2:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	44 min
Aug 4, 2:36 PM EDT	Severe Thunderstorm Warning	CTP	Warren	54 min
Aug 4, 2:42 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	33 min
Aug 4, 2:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Westmoreland	34 min
Aug 4, 2:58 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	77 min
Aug 4, 3:12 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	33 min
Aug 4, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Northumberland, Sullivan, Union	61 min
Aug 4, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	30 min
Aug 4, 3:26 PM EDT	Severe Thunderstorm Warning	CTP	Warren	79 min
Aug 4, 3:42 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Schuylkill	82 min
Aug 4, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	45 min
Aug 4, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	47 min
Aug 4, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	56 min
Aug 4, 4:12 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	34 min
Aug 4, 4:14 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	46 min
Aug 4, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Mifflin	75 min
Aug 4, 4:42 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria	33 min
Aug 4, 4:47 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	28 min
Aug 4, 4:47 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield	43 min
Aug 4, 4:59 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	31 min
Aug 4, 5:01 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	29 min
Aug 4, 5:15 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	37 min
Aug 4, 5:24 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	51 min
Aug 4, 5:28 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	62 min
Aug 4, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence, Mercer, Venango	49 min
Aug 4, 5:59 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming, Potter, Tioga	61 min
Aug 4, 6:18 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton, Huntingdon	57 min
Aug 4, 6:19 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	26 min
Aug 4, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	61 min
Aug 4, 6:46 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Venango	59 min
Aug 4, 6:50 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	40 min
Aug 4, 6:53 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	37 min
Aug 4, 7:08 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Juniata, Perry	67 min
Aug 4, 7:17 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	43 min
Aug 4, 7:30 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	45 min
Aug 4, 7:36 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	54 min
Aug 4, 7:51 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	54 min
Aug 4, 7:51 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	54 min
Aug 4, 7:55 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	80 min
Aug 4, 8:12 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lebanon, Northumberland, Perry, Schuylkill and 3 more	78 min
Aug 4, 8:16 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland, Sullivan, Union	74 min
Aug 4, 8:36 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	54 min
Aug 4, 8:55 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland	50 min
Aug 4, 8:57 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	33 min
Aug 4, 9:30 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Schuylkill	60 min
Aug 4, 9:30 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, Perry, York	60 min
Aug 4, 9:53 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin, York	52 min
Aug 4, 10:13 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, Schuylkill	92 min
Aug 4, 10:33 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, York	87 min
Aug 4, 10:50 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	85 min
Aug 4, 11:35 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	85 min
Aug 4, 11:36 PM EDT	Severe Thunderstorm Warning	PHI	Berks	69 min
Aug 5, 12:10 AM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	51 min
Aug 11, 8:46 PM EDT	Severe Thunderstorm Warning	CTP	Perry	59 min
Aug 12, 1:52 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Juniata, Mifflin, Snyder	68 min
Aug 12, 2:23 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Perry	67 min
Aug 12, 3:24 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Northumberland, Perry, Snyder	81 min
Aug 12, 3:48 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	72 min
Aug 12, 3:49 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	41 min
Aug 12, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	60 min
Aug 12, 4:24 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, York	102 min
Aug 12, 5:24 PM EDT	Severe Thunderstorm Warning	PHI	Berks	51 min
Aug 17, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	45 min
Aug 17, 7:23 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	22 min
Aug 18, 1:12 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	48 min
Aug 18, 2:32 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	43 min
Aug 18, 2:33 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	42 min
Aug 18, 2:36 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Juniata, Perry, York	54 min
Aug 18, 3:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Montgomery, Northampton	44 min
Aug 18, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Montgomery	51 min
Aug 18, 4:29 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	61 min
Aug 18, 4:38 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	52 min
Aug 18, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Chester	42 min
Aug 18, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	49 min
Aug 18, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	66 min
Aug 18, 5:54 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	66 min
Aug 19, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	50 min
Aug 19, 3:14 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	46 min
Aug 19, 3:16 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	44 min
Aug 19, 3:47 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	28 min
Aug 19, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Butler, Westmoreland	51 min
Aug 19, 4:19 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	41 min
Aug 19, 4:32 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	43 min
Aug 19, 4:36 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	39 min
Aug 19, 4:43 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	32 min
Aug 19, 4:46 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	44 min
Aug 19, 5:04 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	28 min
Aug 19, 5:06 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	69 min
Aug 19, 5:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Westmoreland	53 min
Aug 19, 5:16 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington, Westmoreland	44 min
Aug 19, 5:29 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	91 min
Aug 19, 5:34 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	24 min
Aug 19, 5:39 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	81 min
Aug 19, 6:02 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	88 min
Aug 19, 6:18 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	60 min
Aug 19, 6:38 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	82 min
Aug 19, 6:41 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	34 min
Aug 19, 6:46 PM EDT	Severe Thunderstorm Warning	CTP	Snyder, Union	74 min
Aug 19, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Northumberland	63 min
Aug 19, 7:41 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	34 min
Aug 19, 7:48 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	57 min
Aug 19, 7:54 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Schuylkill	51 min
Aug 19, 8:01 PM EDT	Severe Thunderstorm Warning	PHI	Berks	59 min
Aug 19, 8:07 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	57 min
Aug 19, 8:13 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	17 min
Aug 19, 9:00 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more	60 min
Aug 21, 3:30 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	33 min
Aug 21, 6:24 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	33 min
Aug 22, 1:02 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	43 min
Aug 22, 1:20 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	40 min
Aug 22, 1:23 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Mercer, Venango	52 min
Aug 22, 1:33 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	42 min
Aug 22, 1:38 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	37 min
Aug 22, 1:41 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	34 min
Aug 22, 1:52 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	40 min
Aug 22, 1:55 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	50 min
Aug 22, 1:57 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	48 min
Aug 22, 2:02 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson	43 min
Aug 22, 2:09 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk, McKean, Warren	66 min
Aug 22, 2:36 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	39 min
Aug 22, 2:37 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	38 min
Aug 22, 2:51 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	24 min
Aug 22, 2:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	36 min
Aug 22, 2:55 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	77 min
Aug 22, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clinton, Elk, Lycoming, Potter, Tioga	76 min
Aug 22, 3:24 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	36 min
Aug 22, 3:26 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria	64 min
Aug 22, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	36 min
Aug 22, 3:55 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	35 min
Aug 22, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	49 min
Aug 22, 5:05 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	25 min
Aug 22, 5:08 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Jefferson	52 min
Aug 22, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk, McKean, Potter	66 min
Aug 22, 5:15 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	54 min
Aug 22, 5:33 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	36 min
Aug 22, 5:38 PM EDT	Severe Thunderstorm Warning	CTP	Potter	37 min
Aug 22, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	44 min
Aug 22, 6:13 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	53 min
Aug 22, 7:00 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne, Wyoming	45 min
Aug 22, 7:23 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	67 min
Aug 22, 7:24 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	21 min
Aug 22, 7:30 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	45 min
Aug 22, 7:33 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	42 min
Aug 22, 7:43 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wayne	47 min
Aug 22, 7:57 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	48 min
Aug 22, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	46 min
Aug 22, 7:59 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh	46 min
Aug 22, 8:12 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	48 min
Aug 22, 8:23 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	37 min
Aug 22, 8:28 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Pike, Wayne	47 min
Aug 22, 8:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	60 min
Aug 22, 8:58 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	24 min
Aug 22, 9:00 PM EDT	Severe Thunderstorm Warning	BGM	Pike	15 min
Aug 22, 9:23 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	52 min
Aug 22, 9:42 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	48 min
Aug 22, 10:07 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	53 min
Aug 22, 10:27 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	48 min
Aug 22, 10:58 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	62 min
Aug 22, 11:46 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	44 min
Aug 23, 12:29 AM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	46 min
Sep 4, 11:07 PM EDT	Severe Thunderstorm Warning	CTP	Warren	68 min
Sep 4, 11:40 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	35 min
Sep 4, 11:56 PM EDT	Severe Thunderstorm Warning	CTP	McKean	64 min
Sep 5, 12:11 AM EDT	Severe Thunderstorm Warning	CTP	Warren	73 min
Sep 5, 12:17 AM EDT	Severe Thunderstorm Warning	CLE	Crawford	28 min
Sep 5, 3:02 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, Fulton	58 min
Sep 5, 3:51 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	84 min
Sep 5, 4:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	52 min
Sep 5, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lancaster, Lebanon, York	85 min
Sep 5, 4:54 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	51 min
Sep 5, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	56 min
Sep 5, 5:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	41 min
Sep 5, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	49 min
Oct 15, 4:46 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	74 min
Oct 15, 5:55 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	65 min
Oct 15, 6:13 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk	62 min
Nov 5, 6:31 PM EST	Severe Thunderstorm Warning	CLE	Erie	59 min
Nov 5, 6:46 PM EST	Severe Thunderstorm Warning	CLE	Crawford	59 min
Nov 5, 6:46 PM EST	Severe Thunderstorm Warning	PBZ	Mercer	44 min
Nov 5, 6:55 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence, Washington	65 min
Nov 5, 7:26 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Mercer, Venango	64 min
Nov 5, 7:27 PM EST	Severe Thunderstorm Warning	CTP	Warren	63 min
Nov 5, 7:28 PM EST	Severe Thunderstorm Warning	CLE	Erie	32 min
Nov 5, 7:37 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Beaver, Butler, Indiana, Jefferson	53 min
Nov 5, 7:57 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Westmoreland	34 min
Nov 5, 8:10 PM EST	Severe Thunderstorm Warning	CTP	Elk, McKean	65 min
Nov 5, 8:13 PM EST	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Forest, Indiana, Jefferson	47 min
Nov 5, 8:25 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana	38 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 2016 2018

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.