Alert archive / Pennsylvania / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Pennsylvania, 2025

545 severe thunderstorm warnings in 2025. 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 2025. Tap one for its archive.

Severe Thunderstorm Warnings: 545
Busiest month: June182 severe thunderstorm warnings
Busiest day: June 19, 202528 severe thunderstorm warnings

Over time

By month

Warning verification

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

350 of 545 severe thunderstorm warnings covering Pennsylvania in 2025 had a qualifying storm report inside them; 1,156 of 1,266 hail, wind and damage reports fell inside a warning, on average 24 minutes after it went out.

Pennsylvania, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	545	350	36%	1,266	91%	24 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Binghamton, NY: severe thunderstorm warnings	131	88	33%	381	89%	24 min
NWS State College, PA: severe thunderstorm warnings	212	129	39%	354	89%	22 min
NWS Pittsburgh, PA: severe thunderstorm warnings	273	175	36%	988	93%	24 min
NWS Cleveland, OH: severe thunderstorm warnings	165	101	39%	336	88%	24 min
NWS Philadelphia/Mount Holly: severe thunderstorm warnings	233	131	44%	502	91%	23 min

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

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

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Feb 27, 8:50 PM EST	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	25 min
Mar 5, 4:27 PM EST	Severe Thunderstorm Warning	PBZ	Jefferson	23 min
Mar 5, 4:41 PM EST	Severe Thunderstorm Warning	CTP	Cambria, Somerset	34 min
Mar 16, 11:17 AM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	43 min
Mar 16, 11:54 AM EDT	Severe Thunderstorm Warning	PBZ	Washington	51 min
Mar 16, 11:56 AM EDT	Severe Thunderstorm Warning	PBZ	Greene	49 min
Mar 16, 12:16 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Greene, Washington and 1 more	44 min
Mar 16, 12:26 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	49 min
Mar 16, 12:28 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	32 min
Mar 16, 12:48 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Allegheny, Armstrong, Butler, Clarion, Indiana, Jefferson and 1 more	57 min
Mar 16, 12:51 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence, Mercer	39 min
Mar 16, 12:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Allegheny, Fayette, Indiana, Westmoreland	64 min
Mar 16, 12:59 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	91 min
Mar 16, 12:59 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cambria, Somerset	61 min
Mar 16, 1:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Beaver, Butler, Lawrence, Mercer, Venango, Washington	47 min
Mar 16, 1:21 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Armstrong, Clarion, Forest, Indiana, Jefferson, Venango	54 min
Mar 16, 1:27 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk, McKean, Warren	63 min
Mar 16, 1:47 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Centre, Clearfield, Elk and 1 more	43 min
Mar 16, 1:53 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Mercer, Venango	25 min
Mar 16, 2:27 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Cameron, Centre, Clearfield, Clinton, Elk, McKean and 1 more	78 min
Mar 16, 2:27 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon, Mifflin	78 min
Mar 16, 3:18 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Tioga	57 min
Mar 16, 3:44 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BGM	Bradford	46 min
Mar 16, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Fulton, Huntingdon, Juniata, Perry	62 min
Mar 16, 3:59 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Luzerne, Susquehanna, Wyoming	61 min
Mar 16, 5:00 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	30 min
Mar 16, 5:27 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	63 min
Mar 16, 6:32 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence, Mercer	43 min
Mar 16, 9:01 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	14 min
Mar 16, 9:02 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	44 min
Mar 16, 9:32 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	43 min
Mar 31, 6:38 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Montgomery	14 min
Mar 31, 7:34 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	41 min
Mar 31, 8:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	52 min
Apr 2, 1:10 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	23 min
Apr 2, 1:36 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	24 min
Apr 2, 1:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	34 min
Apr 2, 2:02 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	43 min
Apr 2, 2:10 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington, Westmoreland	35 min
Apr 2, 2:33 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Indiana, Washington, Westmoreland	42 min
Apr 2, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	18 min
Apr 2, 3:16 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	29 min
Apr 2, 3:25 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	35 min
Apr 3, 3:50 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Greene, Washington	40 min
Apr 3, 4:28 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	62 min
Apr 3, 4:37 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Clarion, Indiana, Jefferson and 2 more	38 min
Apr 3, 5:29 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette	31 min
Apr 4, 4:40 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	50 min
Apr 15, 1:35 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Mifflin	25 min
Apr 15, 1:47 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	32 min
Apr 15, 1:58 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Juniata, Mifflin, Snyder, Union	32 min
Apr 15, 3:07 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	53 min
Apr 15, 3:09 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	51 min
Apr 15, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more	49 min
Apr 15, 4:07 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	53 min
Apr 15, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	40 min
Apr 19, 1:34 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	41 min
Apr 19, 1:54 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson	22 min
Apr 19, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	31 min
Apr 19, 2:56 PM EDT	Severe Thunderstorm Warning Destructive damage threat	CTP	Centre, Clearfield	19 min
Apr 19, 3:15 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	17 min
Apr 19, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland, Sullivan	24 min
Apr 19, 4:48 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Pike, Susquehanna, Wayne	42 min
Apr 19, 5:36 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	39 min
Apr 19, 6:12 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	22 min
Apr 19, 6:22 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	31 min
Apr 19, 6:27 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	48 min
Apr 19, 6:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Indiana, Westmoreland	22 min
Apr 19, 7:39 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	44 min
Apr 19, 8:23 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Westmoreland	27 min
Apr 19, 8:39 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	36 min
Apr 19, 9:11 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	34 min
Apr 19, 9:41 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	34 min
Apr 19, 10:06 PM EDT	Severe Thunderstorm Warning	CTP	Adams	39 min
Apr 19, 10:26 PM EDT	Severe Thunderstorm Warning	CTP	York	49 min
Apr 21, 5:28 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	44 min
Apr 21, 5:57 PM EDT	Severe Thunderstorm Warning	CTP	Warren	48 min
Apr 21, 8:50 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Venango	39 min
Apr 29, 4:16 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PBZ	Allegheny, Beaver, Lawrence, Washington	44 min
Apr 29, 4:34 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Forest, Lawrence, Mercer, Venango	56 min
Apr 29, 4:46 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PBZ	Allegheny, Armstrong, Beaver, Butler, Indiana, Lawrence and 2 more	44 min
Apr 29, 4:50 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Fayette, Greene, Washington, Westmoreland	40 min
Apr 29, 5:21 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PBZ	Allegheny, Armstrong, Butler, Clarion, Forest, Indiana and 4 more	54 min
Apr 29, 5:24 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	66 min
Apr 29, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	47 min
Apr 29, 5:37 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Cambria, Clearfield	68 min
Apr 29, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	36 min
Apr 29, 6:08 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Forest, Jefferson	26 min
Apr 29, 6:10 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Centre, Clearfield, Huntingdon	65 min
Apr 29, 6:13 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	62 min
Apr 29, 6:33 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	42 min
Apr 29, 6:51 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	39 min
Apr 29, 6:57 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Juniata, Mifflin	18 min
Apr 29, 7:12 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Tioga	33 min
Apr 29, 7:16 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Lycoming, Mifflin, Montour, Northumberland, Perry and 2 more	59 min
Apr 29, 7:25 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	50 min
Apr 29, 7:50 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Lebanon, Northumberland, Schuylkill, Sullivan	55 min
Apr 29, 7:59 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Luzerne, Wyoming	46 min
Apr 29, 8:15 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	45 min
May 1, 3:27 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	48 min
May 1, 4:38 PM EDT	Severe Thunderstorm Warning	CLE	Erie	52 min
May 1, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	35 min
May 1, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	51 min
May 1, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	49 min
May 1, 5:53 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	52 min
May 1, 5:56 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	34 min
May 1, 5:58 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	47 min
May 1, 6:11 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	49 min
May 1, 6:29 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	46 min
May 1, 6:32 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Indiana, Westmoreland	43 min
May 1, 6:42 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	33 min
May 1, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	31 min
May 1, 7:12 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	48 min
May 1, 7:12 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	37 min
May 1, 7:44 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield	46 min
May 1, 8:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	38 min
May 1, 8:30 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Juniata, Perry	45 min
May 2, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	51 min
May 2, 3:57 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	48 min
May 2, 4:07 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	38 min
May 2, 4:08 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	37 min
May 2, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	42 min
May 2, 4:35 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	40 min
May 2, 4:43 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	32 min
May 2, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	45 min
May 2, 4:51 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	39 min
May 2, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	26 min
May 2, 5:02 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	12 min
May 2, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	36 min
May 2, 5:13 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	47 min
May 2, 5:15 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	28 min
May 2, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	49 min
May 2, 6:04 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	41 min
May 2, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	34 min
May 3, 4:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
May 3, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Chester	44 min
May 3, 7:34 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	41 min
May 3, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	50 min
May 3, 8:47 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	43 min
May 3, 9:50 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	17 min
May 4, 6:21 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	39 min
May 4, 6:42 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	43 min
May 4, 6:57 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	33 min
May 4, 7:24 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	36 min
May 4, 7:52 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	20 min
May 4, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	47 min
May 4, 8:03 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	22 min
May 4, 9:41 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	25 min
May 5, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
May 5, 4:34 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington, Westmoreland	17 min
May 5, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	32 min
May 6, 12:46 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	29 min
May 6, 1:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks	37 min
May 6, 1:20 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	40 min
May 6, 1:31 PM EDT	Severe Thunderstorm Warning	PHI	Chester	44 min
May 6, 1:55 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder, Union	50 min
May 6, 2:12 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	48 min
May 6, 2:28 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	47 min
May 6, 2:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh	59 min
May 6, 3:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	50 min
May 6, 3:34 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	41 min
May 6, 3:41 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	49 min
May 6, 4:09 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	51 min
May 6, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	57 min
May 6, 4:44 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	46 min
May 6, 5:18 PM EDT	Severe Thunderstorm Warning	BGM	Pike	42 min
May 6, 6:13 PM EDT	Severe Thunderstorm Warning	BGM	Pike	47 min
May 16, 4:31 AM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	44 min
May 16, 4:56 AM EDT	Severe Thunderstorm Warning	CTP	Warren	49 min
May 16, 5:23 AM EDT	Severe Thunderstorm Warning	CLE	Crawford	37 min
May 16, 5:44 AM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	46 min
May 16, 10:24 AM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	66 min
May 16, 11:16 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	59 min
May 16, 11:22 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery, Philadelphia	53 min
May 16, 12:20 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	40 min
May 16, 2:55 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon	50 min
May 16, 3:14 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	46 min
May 16, 3:43 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Juniata, Mifflin	47 min
May 16, 4:18 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	57 min
May 16, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	75 min
May 16, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	35 min
May 16, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	89 min
May 16, 5:24 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Perry	66 min
May 16, 5:37 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	38 min
May 16, 6:01 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lancaster, Perry, York	44 min
May 16, 6:04 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	41 min
May 16, 6:06 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	24 min
May 16, 7:08 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	52 min
May 16, 7:32 PM EDT	Severe Thunderstorm Warning	CTP	Warren	58 min
May 17, 12:16 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	29 min
May 17, 12:32 AM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	43 min
May 17, 12:42 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	48 min
May 17, 1:07 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	53 min
May 17, 4:26 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	38 min
May 17, 4:41 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
Jun 5, 1:39 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	51 min
Jun 5, 3:41 PM EDT	Severe Thunderstorm Warning	CTP	Warren	49 min
Jun 5, 4:43 PM EDT	Severe Thunderstorm Warning	CTP	McKean	47 min
Jun 5, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	45 min
Jun 5, 4:53 PM EDT	Severe Thunderstorm Warning	CTP	McKean	37 min
Jun 5, 5:18 PM EDT	Severe Thunderstorm Warning	CTP	Elk	27 min
Jun 5, 5:27 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	30 min
Jun 5, 7:06 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	24 min
Jun 5, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	40 min
Jun 5, 7:41 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield	34 min
Jun 6, 9:40 AM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	38 min
Jun 6, 9:49 AM EDT	Severe Thunderstorm Warning	CTP	Cambria	56 min
Jun 6, 1:00 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	30 min
Jun 6, 2:19 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Westmoreland	26 min
Jun 6, 2:20 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	25 min
Jun 6, 4:46 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming, Potter, Tioga	29 min
Jun 9, 3:30 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	42 min
Jun 9, 3:42 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	48 min
Jun 9, 3:53 PM EDT	Severe Thunderstorm Warning	CTP	Warren	52 min
Jun 9, 4:02 PM EDT	Severe Thunderstorm Warning	PBZ	Forest, Venango	28 min
Jun 9, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Warren	63 min
Jun 9, 4:49 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	56 min
Jun 9, 4:55 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	80 min
Jun 9, 4:58 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	47 min
Jun 9, 5:07 PM EDT	Severe Thunderstorm Warning	CTP	Elk	68 min
Jun 9, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	28 min
Jun 9, 6:09 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	17 min
Jun 9, 6:52 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	38 min
Jun 9, 6:56 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	49 min
Jun 9, 7:00 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	45 min
Jun 9, 7:13 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	42 min
Jun 9, 7:15 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	45 min
Jun 9, 7:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk, McKean	38 min
Jun 9, 7:45 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	45 min
Jun 9, 7:58 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon	47 min
Jun 9, 8:11 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	49 min
Jun 9, 8:33 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	42 min
Jun 9, 8:57 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	48 min
Jun 9, 9:05 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton, Huntingdon	40 min
Jun 9, 9:11 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Mifflin, Snyder, Union	49 min
Jun 9, 9:18 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Snyder	42 min
Jun 9, 9:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Mifflin, Snyder, Union	49 min
Jun 9, 10:05 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Juniata, Mifflin	40 min
Jun 10, 7:44 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster	31 min
Jun 10, 7:47 AM EDT	Severe Thunderstorm Warning	PHI	Berks	43 min
Jun 12, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	36 min
Jun 12, 6:25 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	35 min
Jun 14, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	31 min
Jun 17, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	22 min
Jun 18, 4:18 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	47 min
Jun 18, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Warren	65 min
Jun 18, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Warren	46 min
Jun 18, 5:20 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	40 min
Jun 18, 5:39 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean, Warren	66 min
Jun 18, 5:43 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana	47 min
Jun 18, 6:56 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	19 min
Jun 18, 7:08 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	52 min
Jun 18, 7:26 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	34 min
Jun 18, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	41 min
Jun 18, 7:51 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Clearfield, Clinton, Huntingdon	39 min
Jun 18, 8:25 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Mifflin	50 min
Jun 18, 8:42 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Clinton, Lycoming	48 min
Jun 18, 9:17 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Montour, Northumberland, Union	43 min
Jun 18, 9:44 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CLE	Crawford, Erie	61 min
Jun 18, 10:01 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Beaver, Lawrence, Mercer, Washington	59 min
Jun 18, 10:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour	46 min
Jun 18, 10:36 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	69 min
Jun 18, 10:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 5 more	66 min
Jun 18, 10:57 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	63 min
Jun 18, 11:57 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Clarion, Forest, Indiana and 3 more	63 min
Jun 19, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	64 min
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Chester, Delaware	41 min
Jun 19, 4:59 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Indiana, Westmoreland	46 min
Jun 19, 5:13 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	32 min
Jun 19, 5:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	47 min
Jun 19, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	52 min
Jun 19, 5:31 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	44 min
Jun 19, 5:40 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Montgomery, Philadelphia	50 min
Jun 19, 5:42 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	22 min
Jun 19, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Centre	31 min
Jun 19, 5:50 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	25 min
Jun 19, 6:04 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	41 min
Jun 19, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	48 min
Jun 19, 6:14 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	31 min
Jun 19, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	31 min
Jun 19, 6:49 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Lycoming, Sullivan	56 min
Jun 19, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland, Snyder, Union	70 min
Jun 19, 7:29 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Luzerne, Wyoming	61 min
Jun 19, 8:34 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	41 min
Jun 22, 5:58 AM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	47 min
Jun 25, 12:23 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	52 min
Jun 25, 1:00 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	45 min
Jun 25, 2:01 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	44 min
Jun 25, 3:02 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	28 min
Jun 25, 4:56 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington, Westmoreland	49 min
Jun 25, 5:06 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	39 min
Jun 25, 5:31 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	44 min
Jun 25, 5:32 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	43 min
Jun 25, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	66 min
Jun 25, 5:45 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour	30 min
Jun 25, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	51 min
Jun 25, 6:02 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	26 min
Jun 25, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	39 min
Jun 25, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	38 min
Jun 25, 6:36 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	39 min
Jun 25, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	32 min
Jun 25, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin, Fulton	71 min
Jun 25, 7:54 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	26 min
Jun 26, 2:03 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	42 min
Jun 26, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton, Huntingdon	56 min
Jun 26, 2:16 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Pike, Wayne	29 min
Jun 26, 2:39 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	51 min
Jun 26, 3:26 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Northumberland, Snyder, Union	64 min
Jun 26, 3:35 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	40 min
Jun 26, 3:48 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	42 min
Jun 26, 3:58 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	47 min
Jun 26, 4:20 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	40 min
Jun 26, 4:31 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	44 min
Jun 26, 4:42 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	48 min
Jun 26, 5:04 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	15 min
Jun 26, 5:12 PM EDT	Severe Thunderstorm Warning	CTP	York	63 min
Jun 26, 5:22 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	38 min
Jun 26, 5:37 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	53 min
Jun 26, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	38 min
Jun 26, 5:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	45 min
Jun 26, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Indiana, Westmoreland	49 min
Jun 26, 6:05 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	40 min
Jun 26, 6:22 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	38 min
Jun 26, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	64 min
Jun 26, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery	46 min
Jun 26, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Chester	36 min
Jun 26, 6:59 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	46 min
Jun 26, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
Jun 26, 7:16 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	44 min
Jun 26, 8:27 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton, Huntingdon	48 min
Jun 26, 9:00 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	45 min
Jun 27, 3:12 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	48 min
Jun 27, 3:29 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	31 min
Jun 27, 3:52 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence, Mercer	38 min
Jun 27, 3:59 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	46 min
Jun 27, 4:29 PM EDT	Severe Thunderstorm Warning	CTP	Warren	61 min
Jun 27, 5:11 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	34 min
Jun 27, 5:17 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	28 min
Jun 27, 5:34 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	27 min
Jun 27, 5:42 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	48 min
Jun 27, 5:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	51 min
Jun 27, 7:14 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	46 min
Jun 27, 8:49 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	41 min
Jun 27, 9:24 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	36 min
Jun 28, 10:46 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer	44 min
Jun 28, 11:17 AM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer, Venango	43 min
Jun 28, 11:27 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	48 min
Jun 28, 12:05 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson, Venango	55 min
Jun 28, 12:18 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	42 min
Jun 28, 12:28 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	47 min
Jun 28, 12:44 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Indiana, Jefferson, Westmoreland	61 min
Jun 28, 1:03 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	72 min
Jun 28, 2:06 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	39 min
Jun 28, 2:21 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	39 min
Jun 28, 3:01 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	44 min
Jun 28, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Montour, Northumberland, Sullivan, Tioga	43 min
Jun 28, 3:25 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Mifflin, Montour, Northumberland and 2 more	50 min
Jun 28, 4:06 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	33 min
Jun 28, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	47 min
Jun 28, 7:18 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	42 min
Jun 28, 7:58 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	77 min
Jun 30, 1:28 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	47 min
Jun 30, 2:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
Jun 30, 3:06 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	39 min
Jun 30, 3:10 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	50 min
Jun 30, 3:14 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	46 min
Jun 30, 3:48 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	42 min
Jun 30, 4:44 PM EDT	Severe Thunderstorm Warning	CTP	Potter	31 min
Jun 30, 4:59 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	46 min
Jun 30, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	46 min
Jun 30, 5:17 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	43 min
Jun 30, 5:20 PM EDT	Severe Thunderstorm Warning	CLE	Erie	27 min
Jun 30, 5:30 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	30 min
Jun 30, 6:17 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	30 min
Jun 30, 7:21 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	24 min
Jun 30, 7:30 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	33 min
Jun 30, 7:45 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming	45 min
Jun 30, 10:55 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	80 min
Jun 30, 11:47 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery	43 min
Jul 1, 12:23 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	52 min
Jul 1, 12:38 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	36 min
Jul 1, 2:32 PM EDT	Severe Thunderstorm Warning	PHI	Chester	43 min
Jul 1, 2:58 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	47 min
Jul 1, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lebanon, Perry, Schuylkill, York	58 min
Jul 1, 3:34 PM EDT	Severe Thunderstorm Warning	PHI	Berks	56 min
Jul 1, 3:39 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	66 min
Jul 1, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Lehigh, Montgomery	63 min
Jul 1, 4:29 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	31 min
Jul 1, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	38 min
Jul 3, 2:03 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	42 min
Jul 3, 2:17 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	29 min
Jul 3, 2:38 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	21 min
Jul 3, 3:14 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BGM	Susquehanna, Wayne	46 min
Jul 3, 3:23 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	26 min
Jul 3, 3:28 PM EDT	Severe Thunderstorm Warning Destructive damage threat	BGM	Susquehanna, Wayne	32 min
Jul 3, 3:35 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	40 min
Jul 3, 3:36 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	24 min
Jul 3, 3:44 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	31 min
Jul 3, 3:48 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Susquehanna, Wyoming	42 min
Jul 3, 3:55 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	35 min
Jul 3, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	49 min
Jul 3, 3:57 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BGM	Wayne	48 min
Jul 3, 4:00 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Susquehanna, Wayne	45 min
Jul 3, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	38 min
Jul 3, 4:35 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	40 min
Jul 3, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Carbon, Lehigh, Monroe, Northampton	49 min
Jul 3, 5:27 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	48 min
Jul 3, 5:56 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Northampton	49 min
Jul 3, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	34 min
Jul 7, 1:42 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	48 min
Jul 7, 3:33 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	42 min
Jul 7, 3:59 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	46 min
Jul 7, 4:50 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer	55 min
Jul 7, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Venango	49 min
Jul 7, 5:31 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	44 min
Jul 7, 5:48 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	57 min
Jul 7, 6:03 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	57 min
Jul 7, 6:14 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	46 min
Jul 7, 6:57 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Juniata, Mifflin	48 min
Jul 7, 7:16 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Mifflin, Snyder, Union	59 min
Jul 7, 8:20 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Northumberland, Perry, Snyder	55 min
Jul 7, 10:01 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	44 min
Jul 8, 2:17 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Northumberland, Perry, Snyder	43 min
Jul 8, 2:47 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Northumberland, Perry, Schuylkill, Snyder	43 min
Jul 8, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks	41 min
Jul 8, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, York	43 min
Jul 8, 3:25 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	50 min
Jul 8, 3:28 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	50 min
Jul 8, 3:32 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	43 min
Jul 8, 3:42 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, York	48 min
Jul 8, 3:44 PM EDT	Severe Thunderstorm Warning	PHI	Berks	46 min
Jul 8, 3:52 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	38 min
Jul 8, 4:07 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	34 min
Jul 8, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	45 min
Jul 8, 4:17 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	43 min
Jul 8, 4:20 PM EDT	Severe Thunderstorm Warning	PHI	Chester	40 min
Jul 8, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Berks	35 min
Jul 8, 4:33 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	42 min
Jul 8, 4:54 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Berks, Chester, Montgomery	51 min
Jul 8, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	Chester	19 min
Jul 8, 5:16 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	29 min
Jul 8, 5:34 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Delaware, Montgomery, Philadelphia	41 min
Jul 8, 5:46 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	44 min
Jul 8, 5:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Philadelphia	49 min
Jul 8, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	34 min
Jul 9, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	23 min
Jul 9, 5:52 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	23 min
Jul 9, 5:56 PM EDT	Severe Thunderstorm Warning	CTP	York	34 min
Jul 9, 6:14 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	31 min
Jul 9, 6:30 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	60 min
Jul 9, 7:24 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	51 min
Jul 11, 3:45 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	19 min
Jul 11, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Union	25 min
Jul 12, 8:09 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	36 min
Jul 12, 10:32 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	43 min
Jul 13, 3:39 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	27 min
Jul 13, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	31 min
Jul 14, 2:37 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	32 min
Jul 14, 3:42 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	9 min
Jul 14, 5:36 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	54 min
Jul 16, 4:27 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	34 min
Jul 16, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	38 min
Jul 16, 6:37 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Westmoreland	38 min
Jul 16, 7:00 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	45 min
Jul 16, 7:51 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	39 min
Jul 16, 8:41 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	22 min
Jul 16, 10:44 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	46 min
Jul 16, 11:04 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	42 min
Jul 25, 1:57 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	48 min
Jul 25, 2:06 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Juniata, Mifflin, Snyder, Union	39 min
Jul 25, 2:25 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	44 min
Jul 25, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	46 min
Jul 25, 2:36 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Schuylkill	54 min
Jul 25, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Mifflin, Northumberland, Perry, Schuylkill and 2 more	46 min
Jul 25, 3:22 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lebanon, Perry, Schuylkill, York	38 min
Jul 25, 3:36 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	54 min
Jul 25, 3:47 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	33 min
Jul 25, 4:19 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Juniata, Mifflin, Perry	41 min
Jul 25, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	65 min
Jul 25, 4:33 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	42 min
Jul 25, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	47 min
Jul 25, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Montgomery, Philadelphia	52 min
Jul 25, 5:38 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Northumberland, Union	37 min
Jul 25, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	31 min
Jul 25, 6:35 PM EDT	Severe Thunderstorm Warning	CTP	York	25 min
Jul 25, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	27 min
Jul 25, 7:11 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Montour, Northumberland, Snyder, Union	49 min
Jul 25, 7:45 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	45 min
Jul 26, 11:58 AM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield, Huntingdon	47 min
Jul 26, 1:00 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Huntingdon, Juniata, Mifflin, Perry	45 min
Jul 26, 1:58 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Huntingdon	47 min
Jul 26, 2:31 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin	44 min
Jul 26, 3:31 PM EDT	Severe Thunderstorm Warning	CTP	Adams	29 min
Jul 26, 5:09 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	51 min
Jul 26, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	31 min
Jul 26, 5:49 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	41 min
Jul 26, 6:08 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	27 min
Jul 26, 6:40 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Westmoreland	41 min
Jul 26, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	52 min
Jul 26, 10:47 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	43 min
Jul 27, 4:32 PM EDT	Severe Thunderstorm Warning	CTP	York	28 min
Jul 31, 7:13 AM EDT	Severe Thunderstorm Warning	BGM	Pike	47 min
Jul 31, 11:47 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster	43 min
Jul 31, 12:11 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Montgomery	64 min
Jul 31, 12:46 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Fayette, Greene	44 min
Jul 31, 12:53 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	67 min
Jul 31, 1:49 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	41 min
Jul 31, 1:55 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	18 min
Jul 31, 2:05 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	40 min
Jul 31, 2:55 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	50 min
Aug 13, 3:32 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	43 min
Aug 13, 4:49 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	41 min
Aug 13, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	49 min
Aug 16, 1:38 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	37 min
Aug 17, 6:19 AM EDT	Severe Thunderstorm Warning	CLE	Erie	41 min
Aug 17, 1:53 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PBZ	Westmoreland	37 min
Aug 17, 2:00 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	60 min
Aug 17, 2:46 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	44 min
Aug 17, 4:21 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	54 min
Aug 17, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	31 min
Aug 17, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	46 min
Aug 24, 4:45 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	45 min
Aug 24, 7:17 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	43 min
Aug 24, 10:16 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Union	44 min
Sep 4, 7:03 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	27 min
Sep 4, 7:08 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	52 min
Sep 4, 7:39 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	51 min
Sep 6, 3:30 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	45 min
Sep 6, 3:46 PM EDT	Severe Thunderstorm Warning	PHI	Chester	29 min
Sep 20, 3:07 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	14 min
Sep 25, 3:15 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin	30 min
Sep 25, 4:02 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Lancaster, York	43 min
Oct 21, 10:18 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	27 min
Nov 5, 5:54 PM EST	Severe Thunderstorm Warning	CTP	Clearfield	21 min
Nov 5, 8:08 PM EST	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming	48 min
Nov 5, 8:39 PM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Pike, Wayne	45 min
Nov 5, 9:19 PM EST	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	26 min
Nov 5, 9:38 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	18 min
Nov 5, 10:05 PM EST	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	40 min
Nov 15, 8:06 PM EST	Severe Thunderstorm Warning	PBZ	Butler, Clarion, Mercer, Venango	35 min
Dec 19, 8:29 AM EST	Severe Thunderstorm Warning	BGM	Lackawanna, Susquehanna, Wayne	22 min
Dec 19, 9:41 AM EST	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	49 min
Dec 19, 1:40 PM EST	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	65 min
Dec 19, 2:41 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Carbon, Lehigh, Monroe, Northampton	64 min
Dec 19, 2:51 PM EST	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	54 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 2024 2026

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.