Alert archive / Pennsylvania / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Pennsylvania, 2003
365 severe thunderstorm warnings in 2003. 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 2003. Tap one for its archive.
- Severe Thunderstorm Warnings
- 365
- Busiest month
- July177 severe thunderstorm warnings
- Busiest day
- July 21, 200348 severe thunderstorm warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 4:21 PM EST | Severe Thunderstorm Warning | PHI | Bucks | 24 min |
| Apr 4, 9:02 PM EST | Severe Thunderstorm Warning | PBZ | Greene, Washington | 28 min |
| May 1, 4:54 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 66 min |
| May 1, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 61 min |
| May 1, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry | 50 min |
| May 1, 7:45 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 60 min |
| May 6, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 62 min |
| May 6, 5:40 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 50 min |
| May 6, 5:52 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 53 min |
| May 6, 5:58 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 62 min |
| May 6, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 54 min |
| May 7, 3:52 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 53 min |
| May 8, 6:09 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 66 min |
| May 10, 1:42 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 48 min |
| May 10, 2:21 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 54 min |
| May 10, 2:56 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 64 min |
| May 10, 3:33 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 42 min |
| May 10, 3:48 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 57 min |
| May 10, 4:12 AM EDT | Severe Thunderstorm Warning | CTP | Cambria | 63 min |
| May 10, 4:37 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair | 53 min |
| May 10, 6:33 AM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 57 min |
| May 10, 7:12 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 63 min |
| May 10, 7:17 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| May 11, 3:36 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 54 min |
| May 11, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 15 min |
| May 11, 5:58 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 47 min |
| May 11, 6:15 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 60 min |
| May 11, 7:17 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 58 min |
| May 11, 8:19 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 56 min |
| Jun 8, 7:14 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 61 min |
| Jun 8, 7:27 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 63 min |
| Jun 8, 7:36 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 24 min |
| Jun 8, 7:42 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 33 min |
| Jun 8, 7:45 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 60 min |
| Jun 8, 8:02 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 58 min |
| Jun 8, 8:04 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 56 min |
| Jun 8, 8:29 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 61 min |
| Jun 8, 8:31 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 44 min |
| Jun 8, 8:40 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 50 min |
| Jun 8, 9:02 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 58 min |
| Jun 12, 5:37 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 38 min |
| Jun 12, 6:52 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 53 min |
| Jun 12, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 65 min |
| Jun 12, 8:02 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 43 min |
| Jun 12, 8:35 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 40 min |
| Jun 12, 9:03 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 57 min |
| Jun 14, 3:20 PM EDT | Severe Thunderstorm Warning | CTP | Juniata | 25 min |
| Jun 20, 3:35 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 55 min |
| Jul 4, 12:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Jul 4, 1:13 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 62 min |
| Jul 4, 1:57 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 63 min |
| Jul 4, 2:53 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 67 min |
| Jul 4, 3:15 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 60 min |
| Jul 4, 3:18 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 57 min |
| Jul 4, 3:34 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 56 min |
| Jul 4, 4:11 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 64 min |
| Jul 4, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 61 min |
| Jul 4, 5:21 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 54 min |
| Jul 4, 5:53 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 67 min |
| Jul 4, 6:17 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 58 min |
| Jul 4, 6:27 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 63 min |
| Jul 4, 6:49 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 56 min |
| Jul 4, 7:17 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 58 min |
| Jul 4, 11:43 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 47 min |
| Jul 5, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 39 min |
| Jul 5, 4:05 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 55 min |
| Jul 5, 4:08 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 22 min |
| Jul 5, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 33 min |
| Jul 5, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Montgomery, Philadelphia | 38 min |
| Jul 5, 4:54 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 66 min |
| Jul 6, 3:17 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 58 min |
| Jul 6, 3:21 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 39 min |
| Jul 6, 3:37 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 53 min |
| Jul 6, 3:52 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 53 min |
| Jul 6, 3:57 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 63 min |
| Jul 6, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 67 min |
| Jul 6, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 60 min |
| Jul 6, 8:38 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 67 min |
| Jul 6, 8:53 PM EDT | Severe Thunderstorm Warning | CTP | York | 52 min |
| Jul 7, 2:37 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 53 min |
| Jul 7, 5:05 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 55 min |
| Jul 7, 5:12 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 63 min |
| Jul 7, 5:36 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 54 min |
| Jul 7, 5:39 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 96 min |
| Jul 7, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 74 min |
| Jul 7, 5:46 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 44 min |
| Jul 7, 6:22 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 68 min |
| Jul 7, 6:27 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 78 min |
| Jul 7, 6:33 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 57 min |
| Jul 7, 6:55 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 65 min |
| Jul 7, 6:58 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 62 min |
| Jul 7, 7:12 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 33 min |
| Jul 7, 7:22 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 68 min |
| Jul 7, 7:51 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 69 min |
| Jul 8, 2:58 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 47 min |
| Jul 8, 3:05 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 55 min |
| Jul 8, 3:20 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 55 min |
| Jul 8, 3:43 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 62 min |
| Jul 8, 5:06 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 54 min |
| Jul 8, 5:18 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 57 min |
| Jul 8, 6:07 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 53 min |
| Jul 8, 6:22 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 68 min |
| Jul 8, 6:31 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 74 min |
| Jul 8, 6:40 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 65 min |
| Jul 8, 6:43 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Jefferson | 62 min |
| Jul 8, 7:02 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 58 min |
| Jul 8, 7:29 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 61 min |
| Jul 8, 7:32 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 58 min |
| Jul 8, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 65 min |
| Jul 8, 8:00 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 60 min |
| Jul 8, 8:14 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 61 min |
| Jul 8, 8:17 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 58 min |
| Jul 8, 8:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Jul 8, 8:38 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 67 min |
| Jul 8, 9:11 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 49 min |
| Jul 8, 9:27 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 48 min |
| Jul 8, 10:02 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Somerset | 58 min |
| Jul 10, 5:15 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 60 min |
| Jul 10, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 45 min |
| Jul 10, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 58 min |
| Jul 10, 7:16 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 44 min |
| Jul 10, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 67 min |
| Jul 10, 7:37 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 38 min |
| Jul 12, 2:48 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 57 min |
| Jul 14, 3:19 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 56 min |
| Jul 18, 1:55 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 65 min |
| Jul 18, 2:33 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 57 min |
| Jul 18, 2:47 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 58 min |
| Jul 18, 2:54 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 66 min |
| Jul 18, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 53 min |
| Jul 18, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 80 min |
| Jul 18, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 70 min |
| Jul 18, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 31 min |
| Jul 18, 4:18 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Union | 57 min |
| Jul 18, 4:22 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 53 min |
| Jul 18, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 50 min |
| Jul 18, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 60 min |
| Jul 18, 5:24 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 81 min |
| Jul 18, 5:33 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 27 min |
| Jul 18, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland | 22 min |
| Jul 18, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin | 28 min |
| Jul 18, 6:03 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 42 min |
| Jul 18, 7:01 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 29 min |
| Jul 18, 7:01 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 59 min |
| Jul 18, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 59 min |
| Jul 18, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 18 min |
| Jul 18, 7:59 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 61 min |
| Jul 21, 1:21 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 54 min |
| Jul 21, 1:44 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 61 min |
| Jul 21, 1:45 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 60 min |
| Jul 21, 1:50 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 70 min |
| Jul 21, 1:59 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 76 min |
| Jul 21, 2:02 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 43 min |
| Jul 21, 2:07 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 53 min |
| Jul 21, 2:09 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 51 min |
| Jul 21, 2:13 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 62 min |
| Jul 21, 2:14 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 76 min |
| Jul 21, 2:17 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 73 min |
| Jul 21, 2:29 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 61 min |
| Jul 21, 2:41 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 79 min |
| Jul 21, 3:10 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 65 min |
| Jul 21, 3:18 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 57 min |
| Jul 21, 3:24 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 81 min |
| Jul 21, 3:46 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 59 min |
| Jul 21, 3:55 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 65 min |
| Jul 21, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 62 min |
| Jul 21, 4:00 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 45 min |
| Jul 21, 4:04 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 41 min |
| Jul 21, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 93 min |
| Jul 21, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Snyder, Union | 84 min |
| Jul 21, 4:44 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| Jul 21, 4:46 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 59 min |
| Jul 21, 4:51 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 39 min |
| Jul 21, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Montour, Northumberland | 61 min |
| Jul 21, 5:05 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Sullivan | 70 min |
| Jul 21, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 49 min |
| Jul 21, 5:33 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 42 min |
| Jul 21, 5:33 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 57 min |
| Jul 21, 5:39 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 36 min |
| Jul 21, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Schuylkill | 73 min |
| Jul 21, 6:04 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna | 41 min |
| Jul 21, 6:11 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 49 min |
| Jul 21, 6:22 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 53 min |
| Jul 21, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Jul 21, 6:33 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 27 min |
| Jul 21, 6:43 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 62 min |
| Jul 21, 6:44 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 61 min |
| Jul 21, 7:03 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 57 min |
| Jul 21, 7:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Northampton | 53 min |
| Jul 21, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 48 min |
| Jul 21, 7:26 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 64 min |
| Jul 21, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 43 min |
| Jul 21, 7:35 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 55 min |
| Jul 21, 7:45 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 30 min |
| Jul 21, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Northampton | 81 min |
| Jul 21, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 62 min |
| Jul 21, 8:28 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 62 min |
| Jul 21, 8:36 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 84 min |
| Jul 21, 8:54 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 81 min |
| Jul 21, 9:06 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 39 min |
| Jul 21, 9:22 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 53 min |
| Jul 21, 10:42 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 63 min |
| Jul 21, 11:19 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 26 min |
| Jul 21, 11:52 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 53 min |
| Jul 22, 1:33 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 42 min |
| Jul 22, 2:30 AM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 45 min |
| Jul 22, 1:35 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 55 min |
| Jul 22, 2:12 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 63 min |
| Jul 22, 2:27 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 48 min |
| Jul 22, 2:33 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest | 57 min |
| Jul 22, 3:23 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 52 min |
| Jul 22, 3:26 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 49 min |
| Jul 22, 3:33 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 57 min |
| Jul 22, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 66 min |
| Jul 22, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 17 min |
| Jul 22, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 69 min |
| Jul 22, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 91 min |
| Jul 22, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | York | 58 min |
| Jul 22, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 47 min |
| Jul 22, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 36 min |
| Jul 23, 5:09 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 66 min |
| Jul 23, 7:43 PM EDT | Severe Thunderstorm Warning | CTP | York | 47 min |
| Jul 24, 5:18 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 57 min |
| Jul 27, 5:02 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 43 min |
| Jul 27, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Montour, Northumberland, Union | 43 min |
| Aug 2, 7:56 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 49 min |
| Aug 3, 2:47 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 28 min |
| Aug 3, 2:50 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 40 min |
| Aug 3, 2:57 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 63 min |
| Aug 3, 3:01 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 59 min |
| Aug 3, 3:29 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 61 min |
| Aug 3, 3:54 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 51 min |
| Aug 3, 4:02 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 58 min |
| Aug 5, 12:15 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 60 min |
| Aug 5, 6:07 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 38 min |
| Aug 7, 7:23 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 52 min |
| Aug 9, 5:02 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 58 min |
| Aug 9, 6:24 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 51 min |
| Aug 12, 5:06 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 54 min |
| Aug 12, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 59 min |
| Aug 12, 6:42 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 33 min |
| Aug 16, 1:50 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 55 min |
| Aug 16, 2:22 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 38 min |
| Aug 16, 2:32 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 58 min |
| Aug 16, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 47 min |
| Aug 16, 2:49 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 71 min |
| Aug 16, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 49 min |
| Aug 16, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 72 min |
| Aug 16, 4:50 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler | 55 min |
| Aug 16, 5:25 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 50 min |
| Aug 16, 7:49 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 56 min |
| Aug 16, 8:05 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 40 min |
| Aug 16, 8:45 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Indiana | 60 min |
| Aug 16, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 55 min |
| Aug 16, 8:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 66 min |
| Aug 16, 10:14 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 46 min |
| Aug 16, 10:26 PM EDT | Severe Thunderstorm Warning | CTP | York | 34 min |
| Aug 17, 3:00 AM EDT | Severe Thunderstorm Warning | CTP | Centre | 15 min |
| Aug 17, 3:17 AM EDT | Severe Thunderstorm Warning | CTP | Mifflin, Snyder | 28 min |
| Aug 17, 3:39 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 51 min |
| Aug 17, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 58 min |
| Aug 22, 3:45 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 60 min |
| Aug 22, 4:25 AM EDT | Severe Thunderstorm Warning | CTP | McKean | 50 min |
| Aug 22, 3:55 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 20 min |
| Aug 22, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | York | 53 min |
| Aug 22, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 54 min |
| Aug 25, 11:24 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 66 min |
| Aug 26, 3:00 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Venango | 60 min |
| Aug 26, 3:52 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 53 min |
| Aug 26, 4:25 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 65 min |
| Aug 26, 4:51 AM EDT | Severe Thunderstorm Warning | PBZ | Venango | 54 min |
| Aug 26, 5:38 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 52 min |
| Aug 26, 6:47 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 28 min |
| Aug 26, 7:07 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 53 min |
| Aug 26, 7:34 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 56 min |
| Aug 26, 8:06 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 54 min |
| Aug 26, 8:23 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 52 min |
| Aug 26, 8:54 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 66 min |
| Aug 26, 9:18 AM EDT | Severe Thunderstorm Warning | PBZ | Venango | 57 min |
| Aug 26, 10:00 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 60 min |
| Aug 26, 11:20 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 55 min |
| Aug 26, 11:31 AM EDT | Severe Thunderstorm Warning | PBZ | Venango | 59 min |
| Aug 26, 12:16 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 59 min |
| Aug 26, 12:36 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 54 min |
| Aug 26, 1:13 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 62 min |
| Aug 26, 1:28 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 62 min |
| Aug 26, 1:33 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 57 min |
| Aug 26, 1:54 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 66 min |
| Aug 26, 2:00 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 60 min |
| Aug 26, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 59 min |
| Aug 26, 2:27 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 63 min |
| Aug 26, 2:34 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 56 min |
| Aug 26, 2:53 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 52 min |
| Aug 26, 2:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 62 min |
| Aug 26, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 61 min |
| Aug 26, 9:38 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 52 min |
| Aug 26, 9:43 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 47 min |
| Aug 26, 10:03 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 42 min |
| Aug 26, 10:11 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 49 min |
| Aug 26, 10:24 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 51 min |
| Aug 27, 4:55 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 65 min |
| Aug 27, 5:36 AM EDT | Severe Thunderstorm Warning | PBZ | Greene | 54 min |
| Aug 27, 7:31 AM EDT | Severe Thunderstorm Warning | PBZ | Greene | 59 min |
| Aug 27, 8:01 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 44 min |
| Aug 27, 8:22 AM EDT | Severe Thunderstorm Warning | PBZ | Butler | 53 min |
| Aug 27, 8:27 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 63 min |
| Aug 27, 8:48 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 57 min |
| Aug 27, 9:06 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 54 min |
| Aug 27, 9:15 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 60 min |
| Aug 27, 9:35 AM EDT | Severe Thunderstorm Warning | CTP | Cambria | 55 min |
| Aug 27, 9:38 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 52 min |
| Aug 27, 9:43 AM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 62 min |
| Aug 27, 9:58 AM EDT | Severe Thunderstorm Warning | CTP | Blair | 17 min |
| Aug 27, 10:05 AM EDT | Severe Thunderstorm Warning | CTP | Centre | 70 min |
| Aug 27, 10:15 AM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 45 min |
| Aug 27, 10:18 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 42 min |
| Aug 27, 10:27 AM EDT | Severe Thunderstorm Warning | CTP | Blair | 18 min |
| Aug 27, 10:42 AM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 33 min |
| Aug 27, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 43 min |
| Aug 27, 12:58 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 42 min |
| Aug 27, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 40 min |
| Aug 27, 2:57 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 48 min |
| Aug 27, 3:09 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 96 min |
| Aug 27, 3:21 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 54 min |
| Aug 27, 4:10 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 65 min |
| Aug 27, 4:28 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 62 min |
| Aug 27, 4:36 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 54 min |
| Aug 27, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 43 min |
| Aug 27, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 64 min |
| Sep 4, 7:45 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 15 min |
| Sep 4, 7:45 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 45 min |
| Sep 4, 7:48 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 42 min |
| Sep 23, 8:01 AM EDT | Severe Thunderstorm Warning | PHI | Bucks | 44 min |
| Oct 14, 4:51 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 39 min |
| Oct 14, 4:55 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 35 min |
| Oct 14, 4:58 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 62 min |
| Oct 14, 5:14 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 61 min |
| Oct 14, 5:17 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Oct 14, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 56 min |
| Oct 14, 5:33 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 57 min |
| Oct 14, 5:37 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 53 min |
| Oct 14, 5:39 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 66 min |
| Oct 14, 5:46 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 44 min |
| Oct 14, 5:50 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 55 min |
| Oct 14, 5:51 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 54 min |
| Oct 14, 5:53 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 37 min |
| Oct 14, 6:09 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield, Elk | 66 min |
| Oct 15, 12:12 AM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 48 min |
| Nov 12, 7:56 PM EST | Severe Thunderstorm Warning | CLE | Crawford | 64 min |
| Nov 12, 8:22 PM EST | Severe Thunderstorm Warning | PBZ | Mercer | 53 min |
| Nov 12, 8:37 PM EST | Severe Thunderstorm Warning | PBZ | Lawrence | 53 min |
| Nov 12, 8:51 PM EST | Severe Thunderstorm Warning | PBZ | Beaver | 54 min |
| Nov 12, 9:05 PM EST | Severe Thunderstorm Warning | PBZ | Washington | 55 min |
| Nov 12, 9:12 PM EST | Severe Thunderstorm Warning | PBZ | Butler | 63 min |
| Nov 12, 9:47 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny | 28 min |
| Nov 12, 10:01 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong | 59 min |
| Nov 12, 10:03 PM EST | Severe Thunderstorm Warning | PBZ | Jefferson | 57 min |
| Nov 12, 10:08 PM EST | Severe Thunderstorm Warning | PBZ | Westmoreland | 52 min |
| Nov 12, 10:09 PM EST | Severe Thunderstorm Warning | PBZ | Indiana | 66 min |
| Nov 12, 10:11 PM EST | Severe Thunderstorm Warning | CTP | Clearfield | 49 min |
| Nov 12, 10:14 PM EST | Severe Thunderstorm Warning | PBZ | Fayette | 61 min |
| Nov 12, 11:56 PM EST | Severe Thunderstorm Warning | CTP | Lycoming | 34 min |
| Nov 19, 1:56 PM EST | Severe Thunderstorm Warning | CTP | Lancaster, York | 64 min |
| Nov 19, 2:32 PM EST | Severe Thunderstorm Warning | PHI | Chester | 58 min |
| Nov 28, 2:50 PM EST | Severe Thunderstorm Warning | CTP | Adams, Franklin | 55 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Westmoreland County22
- Butler County21
- Beaver County19
- Washington County18
- Indiana County16
- Allegheny County16
- Lawrence County15
- Fayette County15
- Greene County14
- Armstrong County13
- Clearfield County12
- Mercer County11
- Cambria County10
- Huntingdon County9
- Somerset County9
- York County9
- Venango County9
- Susquehanna County8
- Bucks County7
- Lycoming County7
- Adams County7
- Bradford County6
- Crawford County6
- Erie County6
- Bedford County6
- Warren County6
- Lancaster County6
- Centre County6
- Franklin County5
- Cumberland County5
- Dauphin County5
- Blair County5
- Luzerne County5
- Jefferson County5
- Clarion County5
- Montgomery County5
- Berks County5
- Monroe County5
- Perry County4
- Carbon County4
27 more counties
- Chester County4
- Philadelphia County4
- Northumberland County4
- Mifflin County4
- Fulton County3
- Elk County3
- Clinton County3
- Sullivan County3
- Wyoming County3
- Juniata County3
- McKean County3
- Schuylkill County3
- Union County3
- Potter County3
- Northampton County3
- Delaware County2
- Columbia County2
- Forest County2
- Cameron County2
- Snyder County2
- Montour County2
- Pike County2
- Lehigh County2
- Lebanon County1
- Tioga County1
- Lackawanna County1
- Wayne County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20022004
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.