Alert archive / Pennsylvania / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Pennsylvania, 2011
658 severe thunderstorm warnings in 2011. 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 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 658
- Busiest month
- May143 severe thunderstorm warnings
- Busiest day
- April 28, 201147 severe thunderstorm warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 1:04 PM EST | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 56 min |
| Feb 25, 1:16 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 59 min |
| Feb 27, 9:34 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Greene, Washington, Westmoreland | 41 min |
| Feb 28, 6:01 AM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 29 min |
| Feb 28, 7:24 AM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 51 min |
| Mar 21, 3:42 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 63 min |
| Mar 21, 7:28 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 32 min |
| Mar 23, 3:16 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 59 min |
| Mar 23, 3:36 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 54 min |
| Mar 23, 3:45 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Indiana, Westmoreland | 60 min |
| Mar 23, 3:47 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Mar 23, 4:09 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 66 min |
| Mar 23, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 27 min |
| Mar 23, 4:20 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 40 min |
| Mar 23, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 65 min |
| Mar 23, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 29 min |
| Mar 23, 4:34 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Indiana, Westmoreland | 56 min |
| Mar 23, 4:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 63 min |
| Mar 23, 4:55 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland | 65 min |
| Mar 23, 5:14 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 47 min |
| Mar 23, 5:22 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 42 min |
| Mar 23, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 39 min |
| Mar 23, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Huntingdon, Juniata, Mifflin, Perry | 39 min |
| Mar 23, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 22 min |
| Mar 23, 5:44 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Cambria, Somerset | 31 min |
| Mar 23, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 59 min |
| Mar 23, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 45 min |
| Mar 23, 6:04 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 26 min |
| Apr 4, 9:18 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 42 min |
| Apr 4, 9:19 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 26 min |
| Apr 4, 9:51 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 39 min |
| Apr 4, 3:16 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 29 min |
| Apr 4, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 42 min |
| Apr 4, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Huntingdon | 35 min |
| Apr 5, 5:01 AM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 74 min |
| Apr 5, 5:23 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 67 min |
| Apr 5, 10:16 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 44 min |
| Apr 16, 4:01 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Perry and 1 more | 59 min |
| Apr 16, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton, Perry | 37 min |
| Apr 16, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 46 min |
| Apr 16, 7:47 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, York | 43 min |
| Apr 16, 8:25 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 65 min |
| Apr 16, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 44 min |
| Apr 16, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 64 min |
| Apr 19, 9:05 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Huntingdon | 40 min |
| Apr 20, 4:11 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence, Mercer | 34 min |
| Apr 20, 4:37 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 38 min |
| Apr 25, 1:59 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 46 min |
| Apr 25, 2:59 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 30 min |
| Apr 25, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 61 min |
| Apr 25, 4:09 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Lycoming, Potter | 66 min |
| Apr 25, 4:54 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 36 min |
| Apr 25, 5:23 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 37 min |
| Apr 25, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 58 min |
| Apr 25, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 32 min |
| Apr 25, 7:00 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 30 min |
| Apr 25, 7:34 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Potter | 26 min |
| Apr 25, 8:36 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 39 min |
| Apr 25, 8:44 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| Apr 25, 9:15 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 45 min |
| Apr 25, 10:07 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 23 min |
| Apr 26, 12:55 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Washington | 35 min |
| Apr 26, 1:30 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler | 45 min |
| Apr 26, 2:54 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 66 min |
| Apr 26, 3:02 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 43 min |
| Apr 26, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 56 min |
| Apr 26, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Somerset | 54 min |
| Apr 26, 3:50 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 40 min |
| Apr 26, 4:10 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Huntingdon | 65 min |
| Apr 26, 4:28 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 47 min |
| Apr 26, 4:40 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 35 min |
| Apr 26, 4:44 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Indiana, Westmoreland | 46 min |
| Apr 26, 5:03 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield, Somerset | 57 min |
| Apr 26, 5:03 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Potter, Tioga | 42 min |
| Apr 26, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 61 min |
| Apr 26, 5:16 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 14 min |
| Apr 26, 5:28 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 22 min |
| Apr 26, 5:58 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Centre, Clearfield | 47 min |
| Apr 26, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 61 min |
| Apr 26, 6:44 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 50 min |
| Apr 26, 6:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Juniata, Mifflin | 62 min |
| Apr 26, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 55 min |
| Apr 26, 7:38 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder, Union | 67 min |
| Apr 26, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Juniata, Lycoming, Montour, Northumberland, Perry and 2 more | 68 min |
| Apr 26, 8:23 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 67 min |
| Apr 26, 8:55 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 65 min |
| Apr 26, 9:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Schuylkill, Snyder and 1 more | 59 min |
| Apr 26, 9:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 51 min |
| Apr 26, 9:19 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Apr 26, 10:02 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 43 min |
| Apr 26, 10:07 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 68 min |
| Apr 26, 10:16 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Pike | 37 min |
| Apr 26, 11:34 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon | 56 min |
| Apr 27, 12:34 AM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 56 min |
| Apr 27, 2:31 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 44 min |
| Apr 27, 3:46 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Apr 27, 3:55 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more | 65 min |
| Apr 27, 4:09 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 66 min |
| Apr 27, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 30 min |
| Apr 27, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Fayette, Indiana, Westmoreland | 58 min |
| Apr 27, 4:43 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 36 min |
| Apr 27, 4:50 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 25 min |
| Apr 27, 4:55 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk, McKean, Potter | 50 min |
| Apr 27, 5:01 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 44 min |
| Apr 27, 5:16 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 44 min |
| Apr 27, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 26 min |
| Apr 27, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more | 62 min |
| Apr 27, 5:52 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton, Huntingdon, Juniata, Mifflin and 1 more | 53 min |
| Apr 27, 6:45 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 6 more | 60 min |
| Apr 27, 7:12 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Snyder | 63 min |
| Apr 27, 7:48 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 5 more | 57 min |
| Apr 27, 7:50 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 55 min |
| Apr 27, 8:22 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 53 min |
| Apr 27, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 53 min |
| Apr 27, 8:46 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 44 min |
| Apr 27, 9:02 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 43 min |
| Apr 27, 9:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Susquehanna, Wyoming | 51 min |
| Apr 27, 9:40 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 41 min |
| Apr 27, 10:36 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 54 min |
| Apr 27, 11:25 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton | 37 min |
| Apr 28, 12:26 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 64 min |
| Apr 28, 12:33 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 57 min |
| Apr 28, 1:21 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Mifflin | 39 min |
| Apr 28, 1:22 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 53 min |
| Apr 28, 1:35 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 25 min |
| Apr 28, 2:13 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 47 min |
| Apr 28, 2:52 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Cumberland, Franklin, Juniata, Mifflin and 3 more | 53 min |
| Apr 28, 3:37 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Dauphin, Juniata, Lycoming, Montour and 4 more | 38 min |
| Apr 28, 3:46 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 44 min |
| Apr 28, 3:51 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 54 min |
| Apr 28, 4:00 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 1 more | 60 min |
| Apr 28, 4:21 AM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Susquehanna, Wyoming | 54 min |
| Apr 28, 4:28 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Schuylkill and 1 more | 47 min |
| Apr 28, 4:36 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 54 min |
| Apr 28, 4:47 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 43 min |
| Apr 28, 5:14 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 46 min |
| Apr 28, 5:39 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Susquehanna, Wayne | 66 min |
| Apr 28, 5:49 AM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 56 min |
| Apr 28, 6:18 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 57 min |
| Apr 28, 6:48 AM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 42 min |
| Apr 28, 6:53 AM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 37 min |
| Apr 28, 6:56 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 34 min |
| Apr 28, 8:17 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 58 min |
| Apr 28, 8:22 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 38 min |
| Apr 28, 8:54 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 66 min |
| Apr 28, 8:55 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne | 50 min |
| Apr 28, 8:55 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 65 min |
| Apr 28, 9:23 AM EDT | Severe Thunderstorm Warning | BGM | Wayne | 37 min |
| Apr 28, 9:27 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne | 48 min |
| Apr 28, 9:33 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 57 min |
| Apr 28, 9:58 AM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 47 min |
| Apr 28, 10:00 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 60 min |
| Apr 28, 10:03 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 27 min |
| Apr 28, 10:12 AM EDT | Severe Thunderstorm Warning | BGM | Pike | 48 min |
| Apr 28, 10:25 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 50 min |
| Apr 28, 10:35 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 10 min |
| Apr 28, 10:57 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 63 min |
| Apr 28, 11:11 AM EDT | Severe Thunderstorm Warning | PHI | Northampton | 64 min |
| Apr 28, 12:11 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery | 31 min |
| May 3, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Juniata, Mifflin, Perry, Snyder | 34 min |
| May 3, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Cumberland, Dauphin, Juniata, Lycoming, Montour and 4 more | 31 min |
| May 3, 7:45 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 60 min |
| May 3, 8:06 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 54 min |
| May 3, 8:15 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 30 min |
| May 10, 10:19 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 28 min |
| May 12, 6:05 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 25 min |
| May 12, 6:42 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 48 min |
| May 13, 2:52 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 38 min |
| May 13, 3:22 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 38 min |
| May 13, 3:53 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 67 min |
| May 15, 3:37 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 53 min |
| May 15, 3:39 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 44 min |
| May 15, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 56 min |
| May 15, 5:03 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Monroe, Northampton | 57 min |
| May 15, 5:46 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 59 min |
| May 15, 7:04 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 26 min |
| May 15, 11:18 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 57 min |
| May 17, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Fulton, Huntingdon | 40 min |
| May 18, 1:37 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 53 min |
| May 18, 2:27 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 48 min |
| May 18, 2:53 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 52 min |
| May 18, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | York | 49 min |
| May 18, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 64 min |
| May 18, 6:52 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Snyder, Union | 38 min |
| May 19, 1:29 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 61 min |
| May 19, 1:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lebanon, Northumberland, Schuylkill | 49 min |
| May 19, 2:22 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 41 min |
| May 19, 3:12 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 63 min |
| May 19, 3:37 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 53 min |
| May 19, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 54 min |
| May 19, 4:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Northampton | 55 min |
| May 19, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| May 23, 4:09 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder, Union | 66 min |
| May 23, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 3 more | 52 min |
| May 23, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Schuylkill, Snyder | 54 min |
| May 23, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Schuylkill, Sullivan | 58 min |
| May 23, 6:12 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 63 min |
| May 23, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Schuylkill, Snyder | 60 min |
| May 23, 6:27 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 34 min |
| May 23, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 48 min |
| May 23, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 38 min |
| May 23, 7:49 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 56 min |
| May 23, 8:31 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 59 min |
| May 23, 8:44 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 46 min |
| May 23, 8:51 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 39 min |
| May 23, 8:52 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 53 min |
| May 23, 11:18 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 42 min |
| May 24, 12:09 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 51 min |
| May 24, 12:43 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 17 min |
| May 25, 7:50 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 55 min |
| May 25, 8:37 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 53 min |
| May 25, 8:42 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 63 min |
| May 25, 9:19 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 56 min |
| May 25, 9:19 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Venango | 56 min |
| May 25, 9:25 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 35 min |
| May 25, 9:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Lawrence and 2 more | 63 min |
| May 25, 10:10 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 35 min |
| May 25, 10:14 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 61 min |
| May 25, 11:10 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Clinton, Elk, McKean, Potter | 65 min |
| May 25, 11:24 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Tioga | 66 min |
| May 26, 12:13 AM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 62 min |
| May 26, 12:25 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 35 min |
| May 26, 12:25 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 35 min |
| May 26, 12:53 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 67 min |
| May 26, 1:12 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 63 min |
| May 26, 2:19 AM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 53 min |
| May 26, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Snyder, Union | 56 min |
| May 26, 4:11 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 49 min |
| May 26, 4:15 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 45 min |
| May 26, 4:20 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 40 min |
| May 26, 4:21 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 39 min |
| May 26, 4:39 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 66 min |
| May 26, 4:43 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 62 min |
| May 26, 4:44 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 76 min |
| May 26, 4:49 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 56 min |
| May 26, 4:53 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 52 min |
| May 26, 4:54 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland | 66 min |
| May 26, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Indiana, Westmoreland | 50 min |
| May 26, 5:05 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 55 min |
| May 26, 5:07 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 53 min |
| May 26, 5:15 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton, Huntingdon | 60 min |
| May 26, 5:25 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 50 min |
| May 26, 5:35 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Clearfield, Elk, Somerset | 55 min |
| May 26, 5:40 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson, Westmoreland | 33 min |
| May 26, 5:49 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 41 min |
| May 26, 5:49 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Juniata, Perry | 56 min |
| May 26, 5:58 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 62 min |
| May 26, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cameron, Centre, Clearfield, Clinton, Elk and 3 more | 62 min |
| May 26, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 61 min |
| May 26, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lebanon, Northumberland and 3 more | 65 min |
| May 26, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 55 min |
| May 26, 6:54 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 66 min |
| May 26, 7:21 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 24 min |
| May 26, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Sullivan, Tioga | 67 min |
| May 26, 7:28 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 62 min |
| May 26, 7:34 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 56 min |
| May 26, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan | 59 min |
| May 26, 8:03 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 57 min |
| May 26, 8:11 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 49 min |
| May 26, 8:11 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 48 min |
| May 26, 8:27 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lebanon, Schuylkill | 44 min |
| May 26, 8:30 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming | 60 min |
| May 26, 8:46 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 59 min |
| May 26, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 25 min |
| May 26, 8:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Northampton | 55 min |
| May 26, 9:14 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne | 47 min |
| May 26, 9:41 PM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 52 min |
| May 26, 9:44 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 61 min |
| May 26, 9:53 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 52 min |
| May 27, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 67 min |
| May 27, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Huntingdon, Somerset | 54 min |
| May 27, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Potter | 46 min |
| May 27, 4:46 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Mifflin | 59 min |
| May 27, 5:01 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 44 min |
| May 27, 5:26 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Mifflin, Snyder, Union | 49 min |
| May 27, 5:27 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton, Huntingdon | 63 min |
| May 27, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 69 min |
| May 27, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin | 58 min |
| May 27, 5:56 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 64 min |
| May 27, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 64 min |
| May 27, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Sullivan | 61 min |
| May 27, 6:16 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Mifflin, Snyder, Tioga and 1 more | 59 min |
| May 27, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 2 more | 65 min |
| May 27, 6:49 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Perry, York | 71 min |
| May 27, 6:55 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 65 min |
| May 27, 7:00 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 45 min |
| May 27, 7:29 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| May 27, 7:29 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, York | 46 min |
| May 27, 7:39 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Mifflin, Northumberland, Perry, Snyder and 1 more | 81 min |
| May 27, 8:47 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 58 min |
| May 27, 8:59 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lebanon, Northumberland, Schuylkill | 61 min |
| May 27, 9:20 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lebanon, Perry, York | 40 min |
| May 29, 7:56 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 64 min |
| May 29, 8:19 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 56 min |
| May 29, 8:39 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 51 min |
| May 29, 9:09 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Mercer, Venango | 51 min |
| May 29, 9:21 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 67 min |
| May 30, 1:13 AM EDT | Severe Thunderstorm Warning | CTP | Potter | 47 min |
| May 30, 2:27 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 63 min |
| May 30, 2:43 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 62 min |
| May 30, 3:19 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming | 41 min |
| May 30, 5:11 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 64 min |
| Jun 1, 9:17 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Warren | 73 min |
| Jun 1, 10:23 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 52 min |
| Jun 1, 11:48 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 57 min |
| Jun 1, 12:30 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 45 min |
| Jun 1, 12:42 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 63 min |
| Jun 1, 12:56 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 60 min |
| Jun 1, 1:42 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, Lebanon, Perry | 63 min |
| Jun 1, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 63 min |
| Jun 1, 2:21 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 54 min |
| Jun 1, 2:32 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin, Fulton | 32 min |
| Jun 1, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh | 52 min |
| Jun 1, 3:08 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 16 min |
| Jun 1, 3:22 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 53 min |
| Jun 1, 3:41 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 34 min |
| Jun 1, 4:15 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Jun 1, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 26 min |
| Jun 4, 12:02 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 58 min |
| Jun 4, 12:37 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 38 min |
| Jun 4, 12:47 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 58 min |
| Jun 4, 12:54 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 66 min |
| Jun 4, 1:21 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 39 min |
| Jun 4, 1:43 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson, Venango | 51 min |
| Jun 5, 7:28 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 51 min |
| Jun 5, 8:06 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 39 min |
| Jun 5, 8:31 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 25 min |
| Jun 5, 8:42 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 93 min |
| Jun 7, 6:56 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 64 min |
| Jun 7, 7:49 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 56 min |
| Jun 7, 8:43 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Mercer | 47 min |
| Jun 7, 9:24 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 51 min |
| Jun 9, 1:47 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 88 min |
| Jun 9, 2:11 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 64 min |
| Jun 9, 2:51 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 54 min |
| Jun 9, 2:55 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 65 min |
| Jun 9, 2:55 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 2 hr |
| Jun 9, 2:59 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 61 min |
| Jun 9, 3:01 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 59 min |
| Jun 9, 3:28 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 77 min |
| Jun 9, 3:28 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington, Westmoreland | 62 min |
| Jun 9, 3:47 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Pike, Susquehanna, Wayne, Wyoming | 88 min |
| Jun 9, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 58 min |
| Jun 9, 4:26 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 79 min |
| Jun 9, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 64 min |
| Jun 9, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Union | 46 min |
| Jun 9, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, York | 54 min |
| Jun 9, 5:09 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Northumberland, Perry, Schuylkill, Snyder | 66 min |
| Jun 9, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry, York | 65 min |
| Jun 9, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Schuylkill, Sullivan | 64 min |
| Jun 9, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 62 min |
| Jun 9, 5:45 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 45 min |
| Jun 9, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Franklin, Lancaster, Lebanon, York | 112 min |
| Jun 9, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 37 min |
| Jun 9, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 45 min |
| Jun 9, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 66 min |
| Jun 9, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 61 min |
| Jun 9, 7:24 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 36 min |
| Jun 9, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 48 min |
| Jun 9, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 33 min |
| Jun 9, 8:10 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 65 min |
| Jun 10, 3:35 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 55 min |
| Jun 10, 4:23 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon, Mifflin | 82 min |
| Jun 10, 5:33 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Perry, Snyder, Union | 57 min |
| Jun 11, 6:09 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 51 min |
| Jun 11, 6:30 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 45 min |
| Jun 11, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 61 min |
| Jun 11, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 63 min |
| Jun 11, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 68 min |
| Jun 11, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 53 min |
| Jun 11, 8:41 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 79 min |
| Jun 12, 1:30 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Perry | 60 min |
| Jun 12, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 58 min |
| Jun 12, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 54 min |
| Jun 12, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, Lebanon, York | 79 min |
| Jun 16, 3:59 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
| Jun 16, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 56 min |
| Jun 17, 1:48 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 57 min |
| Jun 17, 5:09 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 55 min |
| Jun 21, 10:29 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Washington | 46 min |
| Jun 21, 11:13 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 47 min |
| Jun 22, 12:25 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 22 min |
| Jun 22, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 67 min |
| Jun 22, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 53 min |
| Jun 23, 6:25 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne | 65 min |
| Jun 23, 8:21 AM EDT | Severe Thunderstorm Warning | PHI | Monroe | 24 min |
| Jun 23, 8:54 AM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 81 min |
| Jun 23, 4:11 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Forest, Jefferson | 64 min |
| Jun 23, 9:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 60 min |
| Jun 24, 2:32 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 43 min |
| Jun 24, 4:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 55 min |
| Jun 28, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 46 min |
| Jun 28, 7:40 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 50 min |
| Jul 3, 3:20 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 55 min |
| Jul 3, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 27 min |
| Jul 3, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 56 min |
| Jul 3, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Northampton | 56 min |
| Jul 3, 4:58 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 62 min |
| Jul 4, 6:44 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 32 min |
| Jul 6, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 67 min |
| Jul 7, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry, York | 53 min |
| Jul 7, 3:26 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 64 min |
| Jul 7, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 55 min |
| Jul 7, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 63 min |
| Jul 7, 9:10 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 67 min |
| Jul 7, 9:23 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 56 min |
| Jul 7, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 73 min |
| Jul 7, 10:55 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 28 min |
| Jul 8, 2:26 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Union | 64 min |
| Jul 8, 2:48 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 57 min |
| Jul 8, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 54 min |
| Jul 8, 3:00 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wyoming | 45 min |
| Jul 8, 3:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more | 76 min |
| Jul 11, 3:27 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 63 min |
| Jul 11, 3:46 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Washington | 44 min |
| Jul 11, 4:16 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington, Westmoreland | 44 min |
| Jul 11, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 45 min |
| Jul 11, 5:00 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 60 min |
| Jul 11, 5:14 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 61 min |
| Jul 11, 5:52 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 53 min |
| Jul 11, 6:48 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 57 min |
| Jul 18, 12:17 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 43 min |
| Jul 18, 12:44 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Mercer, Venango | 31 min |
| Jul 18, 3:02 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 28 min |
| Jul 18, 3:29 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler, Westmoreland | 46 min |
| Jul 18, 5:22 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 38 min |
| Jul 18, 5:37 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 53 min |
| Jul 18, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 34 min |
| Jul 18, 6:08 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 67 min |
| Jul 18, 6:11 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Washington | 64 min |
| Jul 18, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 75 min |
| Jul 18, 6:21 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, Perry, York | 42 min |
| Jul 18, 6:47 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 43 min |
| Jul 18, 7:04 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Wyoming | 56 min |
| Jul 18, 7:07 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 83 min |
| Jul 18, 7:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 48 min |
| Jul 18, 7:21 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 39 min |
| Jul 18, 9:48 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 42 min |
| Jul 19, 2:53 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wyoming | 42 min |
| Jul 19, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 28 min |
| Jul 19, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 53 min |
| Jul 22, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Lancaster, York | 58 min |
| Jul 22, 4:34 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 36 min |
| Jul 22, 5:06 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 39 min |
| Jul 22, 5:08 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 37 min |
| Jul 22, 5:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Washington | 63 min |
| Jul 22, 5:17 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 43 min |
| Jul 22, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Westmoreland | 41 min |
| Jul 22, 5:45 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 47 min |
| Jul 22, 5:48 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Indiana, Westmoreland | 42 min |
| Jul 22, 6:00 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 45 min |
| Jul 22, 6:48 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 42 min |
| Jul 22, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 34 min |
| Jul 22, 7:50 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 40 min |
| Jul 23, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 46 min |
| Jul 23, 7:55 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 30 min |
| Jul 23, 10:12 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 35 min |
| Jul 25, 12:19 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 56 min |
| Jul 25, 12:45 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 60 min |
| Jul 25, 12:55 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Warren | 65 min |
| Jul 25, 1:12 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon | 31 min |
| Jul 25, 1:27 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 63 min |
| Jul 25, 1:52 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 53 min |
| Jul 25, 2:29 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 61 min |
| Jul 25, 3:43 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Montour, Northumberland, Sullivan and 1 more | 47 min |
| Jul 25, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Snyder, Sullivan and 1 more | 77 min |
| Jul 25, 4:46 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne | 29 min |
| Jul 25, 5:11 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wayne | 49 min |
| Jul 25, 5:13 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne | 62 min |
| Jul 26, 2:04 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Susquehanna, Wyoming | 41 min |
| Jul 26, 4:06 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 54 min |
| Jul 26, 4:37 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 43 min |
| Jul 26, 4:39 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne | 55 min |
| Jul 26, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 59 min |
| Jul 26, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 35 min |
| Jul 28, 4:28 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 47 min |
| Jul 28, 5:01 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 44 min |
| Jul 28, 5:20 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Lawrence, Westmoreland | 40 min |
| Jul 28, 5:28 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 32 min |
| Jul 28, 5:59 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 46 min |
| Jul 28, 6:16 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 59 min |
| Jul 28, 7:12 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 33 min |
| Jul 28, 7:33 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Cambria, Somerset | 57 min |
| Jul 28, 7:43 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 23 min |
| Jul 29, 2:40 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 50 min |
| Jul 29, 3:15 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 60 min |
| Jul 29, 3:39 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Schuylkill | 66 min |
| Jul 29, 4:04 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Huntingdon, Mifflin | 56 min |
| Jul 29, 4:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 38 min |
| Jul 29, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 60 min |
| Jul 29, 4:40 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 65 min |
| Jul 29, 4:50 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 40 min |
| Jul 29, 4:59 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 61 min |
| Jul 29, 5:39 PM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 36 min |
| Jul 29, 5:54 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 51 min |
| Jul 29, 6:05 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 55 min |
| Jul 29, 6:39 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 30 min |
| Jul 29, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 49 min |
| Jul 29, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 46 min |
| Aug 1, 7:52 AM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 38 min |
| Aug 1, 8:37 AM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 38 min |
| Aug 1, 1:34 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 45 min |
| Aug 1, 1:42 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 36 min |
| Aug 1, 2:25 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Sullivan | 35 min |
| Aug 1, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 32 min |
| Aug 1, 2:46 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, York | 29 min |
| Aug 1, 2:57 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Union | 63 min |
| Aug 1, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 56 min |
| Aug 1, 3:08 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Union | 52 min |
| Aug 1, 3:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 39 min |
| Aug 1, 3:13 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Schuylkill | 47 min |
| Aug 1, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Aug 1, 3:20 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 40 min |
| Aug 1, 3:22 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 38 min |
| Aug 1, 3:29 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 46 min |
| Aug 1, 3:30 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 60 min |
| Aug 1, 3:52 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 23 min |
| Aug 1, 4:00 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 75 min |
| Aug 1, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 28 min |
| Aug 1, 4:08 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan | 37 min |
| Aug 1, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 30 min |
| Aug 1, 4:20 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon | 25 min |
| Aug 1, 4:33 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 42 min |
| Aug 1, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 87 min |
| Aug 1, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 42 min |
| Aug 1, 5:06 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 54 min |
| Aug 1, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 53 min |
| Aug 1, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lebanon, Perry | 62 min |
| Aug 1, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 70 min |
| Aug 1, 6:20 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Lancaster, York | 55 min |
| Aug 1, 6:20 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 46 min |
| Aug 1, 6:34 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Juniata, Mifflin, Perry | 56 min |
| Aug 7, 7:28 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 62 min |
| Aug 7, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 27 min |
| Aug 7, 3:55 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Aug 7, 8:03 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 27 min |
| Aug 9, 12:18 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 57 min |
| Aug 9, 2:37 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Juniata, Lebanon, Perry, Schuylkill | 68 min |
| Aug 9, 10:46 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 44 min |
| Aug 13, 4:29 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 61 min |
| Aug 13, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 30 min |
| Aug 14, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 46 min |
| Aug 14, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 47 min |
| Aug 14, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 66 min |
| Aug 15, 8:05 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 40 min |
| Aug 15, 8:29 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 31 min |
| Aug 18, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 57 min |
| Aug 18, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 66 min |
| Aug 18, 7:14 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 50 min |
| Aug 18, 7:37 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 53 min |
| Aug 18, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 31 min |
| Aug 18, 7:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 61 min |
| Aug 18, 8:31 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 59 min |
| Aug 18, 8:48 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 57 min |
| Aug 18, 9:38 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 67 min |
| Aug 19, 5:39 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 66 min |
| Aug 19, 6:45 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 45 min |
| Aug 19, 7:54 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 38 min |
| Aug 19, 9:22 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 53 min |
| Aug 19, 10:33 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 57 min |
| Aug 19, 12:07 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 52 min |
| Aug 19, 12:17 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 58 min |
| Aug 19, 12:39 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 51 min |
| Aug 19, 12:53 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Clinton, Huntingdon | 52 min |
| Aug 19, 1:10 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 50 min |
| Aug 19, 1:13 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder, Union | 47 min |
| Aug 19, 1:22 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wyoming | 38 min |
| Aug 19, 1:27 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 63 min |
| Aug 19, 1:45 PM EDT | Severe Thunderstorm Warning | CTP | Snyder, Union | 60 min |
| Aug 19, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 59 min |
| Aug 19, 1:54 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 66 min |
| Aug 19, 1:59 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Union | 61 min |
| Aug 19, 2:33 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 42 min |
| Aug 19, 2:35 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 70 min |
| Aug 19, 2:41 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 49 min |
| Aug 19, 2:50 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 55 min |
| Aug 19, 2:58 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 53 min |
| Aug 19, 3:00 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 20 min |
| Aug 19, 3:19 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 56 min |
| Aug 19, 3:24 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 66 min |
| Aug 19, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 78 min |
| Aug 19, 3:29 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland | 61 min |
| Aug 19, 3:47 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 58 min |
| Aug 19, 3:52 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 53 min |
| Aug 19, 3:56 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Westmoreland | 64 min |
| Aug 19, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 61 min |
| Aug 19, 4:19 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 36 min |
| Aug 19, 4:27 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 63 min |
| Aug 19, 4:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 61 min |
| Aug 19, 4:48 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 72 min |
| Aug 19, 4:48 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 57 min |
| Aug 19, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 53 min |
| Aug 19, 5:07 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 53 min |
| Aug 19, 5:07 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 53 min |
| Aug 19, 5:26 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 34 min |
| Aug 19, 5:35 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 55 min |
| Aug 19, 5:42 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 48 min |
| Aug 19, 5:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 80 min |
| Aug 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 65 min |
| Aug 21, 2:17 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 58 min |
| Aug 21, 1:47 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 58 min |
| Aug 21, 1:55 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence | 35 min |
| Aug 21, 2:01 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Mifflin, Snyder, Union | 59 min |
| Aug 21, 2:28 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 33 min |
| Aug 21, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 62 min |
| Aug 21, 2:52 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Perry, Snyder | 53 min |
| Aug 21, 3:28 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Juniata, Lancaster, Lebanon, Northumberland and 4 more | 62 min |
| Aug 21, 4:13 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Indiana, Westmoreland | 62 min |
| Aug 21, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon | 44 min |
| Aug 24, 11:30 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 75 min |
| Aug 25, 12:41 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 79 min |
| Aug 25, 12:54 AM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Potter, Warren | 66 min |
| Aug 25, 1:30 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence, Mercer, Venango | 60 min |
| Aug 25, 3:16 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming | 59 min |
| Sep 3, 8:48 AM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 42 min |
| Sep 3, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 33 min |
| Sep 3, 6:41 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 19 min |
| Sep 3, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming | 36 min |
| Sep 4, 2:31 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 44 min |
| Sep 4, 2:58 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 62 min |
| Sep 4, 2:27 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 48 min |
| Sep 4, 3:06 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 39 min |
| Sep 4, 3:12 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 48 min |
| Sep 4, 3:24 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 66 min |
| Sep 4, 3:40 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 50 min |
| Sep 4, 4:20 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 55 min |
| Sep 4, 6:12 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 33 min |
| Sep 4, 7:53 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Snyder, Union | 67 min |
| Sep 4, 10:31 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon, Schuylkill | 44 min |
| Sep 11, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 67 min |
| Sep 11, 9:24 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 51 min |
| Sep 11, 9:54 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 51 min |
| Sep 11, 10:29 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 46 min |
| Sep 11, 11:10 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 65 min |
| Sep 13, 6:17 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 28 min |
| Sep 13, 6:56 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 64 min |
| Sep 13, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 23 min |
| Sep 13, 7:57 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Mercer, Venango | 63 min |
| Sep 13, 8:14 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 46 min |
| Sep 13, 8:20 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 55 min |
| Sep 13, 8:31 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Mercer, Venango | 59 min |
| Sep 13, 10:05 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 25 min |
| Sep 14, 3:18 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 42 min |
| Sep 14, 6:23 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 67 min |
| Sep 14, 11:20 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder | 55 min |
| Sep 26, 6:16 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Sep 27, 4:37 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 53 min |
| Sep 27, 6:21 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 28 min |
| Sep 28, 5:32 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Northampton | 58 min |
| Nov 14, 4:37 PM EST | Severe Thunderstorm Warning | CLE | Erie | 68 min |
| Nov 14, 6:49 PM EST | Severe Thunderstorm Warning | CTP | McKean, Warren | 56 min |
| Nov 14, 7:33 PM EST | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 57 min |
| Nov 14, 7:35 PM EST | Severe Thunderstorm Warning | CTP | McKean, Potter, Tioga | 55 min |
| Nov 14, 7:44 PM EST | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Mercer, Venango | 46 min |
| Nov 14, 7:49 PM EST | Severe Thunderstorm Warning | BGM | Bradford | 56 min |
| Nov 14, 8:04 PM EST | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 46 min |
| Nov 14, 8:08 PM EST | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 52 min |
| Nov 14, 8:29 PM EST | Severe Thunderstorm Warning | CTP | Tioga | 31 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bradford County46
- Susquehanna County46
- Lycoming County45
- Allegheny County42
- Bucks County40
- Westmoreland County40
- York County40
- Dauphin County39
- Washington County37
- Monroe County37
- Butler County36
- Lancaster County36
- Schuylkill County35
- Wayne County35
- Northampton County34
- Northumberland County34
- Beaver County33
- Perry County33
- Fayette County32
- Chester County32
- Cumberland County31
- Centre County31
- Lebanon County31
- Columbia County31
- Lehigh County30
- Erie County29
- Montgomery County29
- Snyder County29
- Huntingdon County28
- Berks County28
- Luzerne County28
- Carbon County28
- Armstrong County27
- McKean County27
- Lawrence County26
- Blair County26
- Clinton County26
- Potter County26
- Delaware County25
- Mercer County25
27 more counties
- Union County25
- Wyoming County25
- Indiana County24
- Sullivan County24
- Bedford County23
- Juniata County23
- Cambria County23
- Philadelphia County22
- Mifflin County22
- Crawford County22
- Tioga County22
- Lackawanna County22
- Greene County21
- Adams County20
- Franklin County20
- Montour County19
- Clearfield County18
- Somerset County17
- Clarion County17
- Venango County16
- Pike County16
- Warren County15
- Jefferson County14
- Elk County13
- Forest County12
- Fulton County10
- Cameron County9
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.