Weather alerts in Pennsylvania, 2001
555 weather alerts in 2001, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2001. Tap one for its archive.
- Alerts
- 555
- Warnings
- 525
- Watches
- 30
- Advisories
- 0
- Busiest month
- July146 alerts
- Busiest day
- July 1, 200156 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 4:26 PM EST | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Mar 13, 9:56 PM EST | Severe Thunderstorm Warning | CTP | Lancaster, York | 64 min |
| Mar 20, 10:30 AM EST | Flash Flood Warning | CTP | Cameron, Clearfield, Elk, McKean, Warren | 15 min |
| Mar 20, 10:40 AM EST | Flash Flood Warning | CTP | Cambria, Somerset | 15 min |
| Mar 21, 10:30 AM EST | Flash Flood Warning | CTP | Bedford, Blair, Centre, Clinton, Fulton, Huntingdon and 2 more | 15 min |
| Mar 21, 10:40 AM EST | Flash Flood Warning | CTP | Lycoming, Montour, Northumberland, Potter, Snyder, Sullivan and 2 more | 15 min |
| Mar 21, 10:50 AM EST | Flash Flood Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more | 10 min |
| Mar 22, 10:30 AM EST | Flash Flood Warning | CTP | Columbia, Schuylkill | 15 min |
| Mar 30, 8:03 AM EST | Flash Flood Warning | BGM | Bradford | 3 hr |
| Apr 3, 7:10 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Apr 7, 5:25 AM EDT | Flash Flood Warning | PBZ | Lawrence | 2 hr |
| Apr 7, 9:41 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Mercer, Venango | 64 min |
| Apr 8, 2:50 AM EDT | Severe Thunderstorm Warning | PBZ | Venango | 40 min |
| Apr 8, 2:51 AM EDT | Severe Thunderstorm Warning | CTP | Cambria | 39 min |
| Apr 8, 5:02 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 28 min |
| Apr 8, 5:08 AM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 52 min |
| Apr 8, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Fayette, Greene, Washington | 5 hr |
| Apr 9, 2:58 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 47 min |
| Apr 9, 11:00 AM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 15 more | 6 hr |
| Apr 9, 12:53 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 52 min |
| Apr 9, 12:57 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 63 min |
| Apr 9, 1:09 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 51 min |
| Apr 9, 1:45 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 60 min |
| Apr 9, 1:52 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 53 min |
| Apr 9, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 54 min |
| Apr 9, 2:30 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 60 min |
| Apr 9, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Cameron, Centre and 22 more | 6 hr |
| Apr 9, 2:45 PM EDT | Tornado Warning | PBZ | Lawrence | 45 min |
| Apr 9, 3:02 PM EDT | Tornado Warning | PBZ | Butler | 43 min |
| Apr 9, 3:11 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 49 min |
| Apr 9, 3:22 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 23 min |
| Apr 9, 3:32 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 58 min |
| Apr 9, 3:43 PM EDT | Flash Flood Warning | CLE | Crawford | 2 hr |
| Apr 9, 3:44 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 61 min |
| Apr 9, 3:46 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 29 min |
| Apr 9, 4:01 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 59 min |
| Apr 9, 4:04 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 56 min |
| Apr 9, 4:07 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 53 min |
| Apr 9, 4:10 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 65 min |
| Apr 9, 4:18 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 57 min |
| Apr 9, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 57 min |
| Apr 9, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 73 min |
| Apr 9, 4:40 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 35 min |
| Apr 9, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Westmoreland | 60 min |
| Apr 9, 4:55 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 65 min |
| Apr 9, 5:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 9 more | 5 hr |
| Apr 9, 5:05 PM EDT | Tornado Warning | CTP | Cambria | 25 min |
| Apr 9, 5:11 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 34 min |
| Apr 9, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 79 min |
| Apr 9, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 73 min |
| Apr 9, 5:39 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 66 min |
| Apr 9, 5:44 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 61 min |
| Apr 9, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 58 min |
| Apr 9, 5:51 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 39 min |
| Apr 9, 5:52 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 53 min |
| Apr 9, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 37 min |
| Apr 9, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 36 min |
| Apr 9, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin | 79 min |
| Apr 9, 6:03 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 57 min |
| Apr 9, 6:15 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 60 min |
| Apr 9, 6:20 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 55 min |
| Apr 9, 6:26 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 49 min |
| Apr 9, 6:27 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 63 min |
| Apr 9, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 45 min |
| Apr 9, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 73 min |
| Apr 9, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 73 min |
| Apr 9, 7:00 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bucks, Carbon and 27 more | 5 hr |
| Apr 9, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland | 69 min |
| Apr 9, 7:08 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 97 min |
| Apr 9, 7:17 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 58 min |
| Apr 9, 7:25 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 80 min |
| Apr 9, 7:28 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 62 min |
| Apr 9, 8:02 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 43 min |
| Apr 9, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 36 min |
| Apr 9, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 36 min |
| Apr 9, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 38 min |
| May 11, 8:40 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 65 min |
| May 18, 9:10 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 4 hr |
| May 21, 6:30 PM EDT | Tornado Watch | SPC | Beaver, Lawrence | 5 hr |
| May 22, 5:49 PM EDT | Flash Flood Warning | PBZ | Allegheny | 116 min |
| May 25, 7:48 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 42 min |
| May 25, 9:51 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 39 min |
| May 25, 10:02 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 43 min |
| May 26, 2:58 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 62 min |
| May 26, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 31 min |
| May 26, 6:22 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 23 min |
| May 26, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 32 min |
| May 26, 6:53 PM EDT | Flash Flood Warning | CTP | Blair | 3 hr |
| May 26, 9:55 PM EDT | Flash Flood Warning | CTP | Blair | 3 hr |
| May 27, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bradford, Carbon, Centre, Chester and 27 more | 6 hr |
| May 27, 1:23 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 37 min |
| May 27, 2:27 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 33 min |
| May 27, 3:00 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland | 30 min |
| May 27, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 46 min |
| May 29, 1:35 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 55 min |
| Jun 1, 4:39 PM EDT | Tornado Warning | CLE | Crawford | 36 min |
| Jun 2, 11:31 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 59 min |
| Jun 11, 4:39 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 66 min |
| Jun 11, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | Lackawanna, Monroe, Northampton, Pike, Susquehanna, Wayne | 5 hr |
| Jun 11, 6:01 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 59 min |
| Jun 11, 6:25 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 65 min |
| Jun 11, 7:55 PM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 65 min |
| Jun 11, 9:00 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 45 min |
| Jun 11, 10:15 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Jun 11, 10:22 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 53 min |
| Jun 12, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 64 min |
| Jun 12, 3:30 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Cambria, Centre and 18 more | 6 hr |
| Jun 12, 3:36 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 69 min |
| Jun 12, 3:46 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 74 min |
| Jun 12, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 69 min |
| Jun 12, 4:20 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 25 min |
| Jun 12, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 76 min |
| Jun 12, 4:58 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Union | 62 min |
| Jun 12, 5:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Fayette, Greene, Indiana and 3 more | 4 hr |
| Jun 12, 5:12 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 33 min |
| Jun 12, 5:28 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon, Mifflin | 47 min |
| Jun 12, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 58 min |
| Jun 12, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | Juniata | 62 min |
| Jun 12, 5:52 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 53 min |
| Jun 12, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Snyder | 66 min |
| Jun 12, 5:58 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 62 min |
| Jun 12, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 61 min |
| Jun 12, 6:16 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 59 min |
| Jun 12, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 60 min |
| Jun 12, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 60 min |
| Jun 12, 8:04 PM EDT | Severe Thunderstorm Warning | CTP | York | 26 min |
| Jun 13, 12:25 AM EDT | Flash Flood Warning | PBZ | Fayette | 3 hr |
| Jun 13, 5:44 PM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Jun 13, 6:42 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 33 min |
| Jun 16, 2:28 PM EDT | Flash Flood Warning | PHI | Montgomery | 2 hr |
| Jun 16, 3:45 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jun 16, 4:30 PM EDT | Flash Flood Warning | PHI | Montgomery | 90 min |
| Jun 16, 4:53 PM EDT | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Jun 16, 5:31 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jun 16, 6:25 PM EDT | Flash Flood Warning | CTP | Juniata | 3 hr |
| Jun 16, 6:29 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jun 16, 6:30 PM EDT | Flash Flood Warning | PHI | Montgomery | 2 hr |
| Jun 16, 6:40 PM EDT | Flash Flood Warning | PHI | Delaware | 2 hr |
| Jun 16, 7:12 PM EDT | Flash Flood Warning | PHI | Philadelphia | 2 hr |
| Jun 16, 8:15 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 6 hr |
| Jun 16, 8:18 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 6 hr |
| Jun 16, 10:50 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Susquehanna | 3 hr |
| Jun 17, 2:10 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 4 hr |
| Jun 17, 6:05 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 4 hr |
| Jun 17, 6:45 AM EDT | Flash Flood Warning | PHI | Philadelphia | 3 hr |
| Jun 20, 12:49 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 56 min |
| Jun 20, 1:02 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 73 min |
| Jun 20, 1:12 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 78 min |
| Jun 20, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bradford, Carbon, Columbia, Cumberland and 25 more | 5 hr |
| Jun 20, 2:24 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wyoming | 66 min |
| Jun 20, 2:36 PM EDT | Severe Thunderstorm Warning | CTP | Juniata | 54 min |
| Jun 20, 2:43 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Montour, Northumberland, Union | 62 min |
| Jun 20, 3:02 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 58 min |
| Jun 20, 3:09 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 81 min |
| Jun 20, 3:23 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna | 37 min |
| Jun 20, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 63 min |
| Jun 20, 3:39 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 36 min |
| Jun 20, 3:40 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 65 min |
| Jun 20, 4:12 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 78 min |
| Jun 20, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 60 min |
| Jun 20, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 62 min |
| Jun 20, 4:35 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 55 min |
| Jun 20, 4:38 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 67 min |
| Jun 20, 4:45 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 15 min |
| Jun 20, 4:48 PM EDT | Tornado Warning | CTP | Tioga | 27 min |
| Jun 20, 4:49 PM EDT | Severe Thunderstorm Warning | CTP | York | 71 min |
| Jun 20, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 37 min |
| Jun 20, 4:56 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 64 min |
| Jun 20, 5:00 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 30 min |
| Jun 20, 5:05 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 25 min |
| Jun 20, 5:29 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 76 min |
| Jun 20, 5:30 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 6 more | 6 hr |
| Jun 20, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 66 min |
| Jun 20, 6:50 PM EDT | Flash Flood Warning | PBZ | Fayette | 115 min |
| Jun 20, 7:00 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 45 min |
| Jun 20, 7:40 PM EDT | Severe Thunderstorm Warning | CTP | Montour | 20 min |
| Jun 20, 7:54 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 36 min |
| Jun 20, 10:01 PM EDT | Flash Flood Warning | CTP | Juniata | 3 hr |
| Jun 21, 3:37 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 53 min |
| Jun 21, 4:00 PM EDT | Flash Flood Warning | CTP | Blair | 3 hr |
| Jun 21, 4:00 PM EDT | Severe Thunderstorm Watch | SPC | Crawford | 6 hr |
| Jun 21, 4:13 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 62 min |
| Jun 21, 6:01 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 44 min |
| Jun 21, 7:00 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 45 min |
| Jun 21, 7:20 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 40 min |
| Jun 21, 7:53 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 67 min |
| Jun 21, 7:57 PM EDT | Flash Flood Warning | CTP | Warren | 3 hr |
| Jun 21, 8:12 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 63 min |
| Jun 21, 8:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 63 min |
| Jun 21, 8:24 PM EDT | Flash Flood Warning | PBZ | Venango | 3 hr |
| Jun 21, 9:55 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 65 min |
| Jun 21, 10:16 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
| Jun 21, 10:32 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 58 min |
| Jun 21, 10:34 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 71 min |
| Jun 21, 10:44 PM EDT | Flash Flood Warning | CTP | Clearfield | 4 hr |
| Jun 21, 10:47 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 58 min |
| Jun 21, 10:52 PM EDT | Flash Flood Warning | CTP | Warren | 113 min |
| Jun 21, 11:17 PM EDT | Flash Flood Warning | PBZ | Venango | 3 hr |
| Jun 21, 11:25 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 65 min |
| Jun 22, 1:09 AM EDT | Flash Flood Warning | CTP | Franklin | 66 min |
| Jun 22, 2:36 AM EDT | Flash Flood Warning | CTP | Northumberland | 114 min |
| Jun 22, 3:09 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour | 36 min |
| Jun 22, 11:30 AM EDT | Severe Thunderstorm Warning | CTP | York | 60 min |
| Jun 22, 12:59 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 22, 1:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 30 min |
| Jun 22, 1:42 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Jun 22, 1:53 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 37 min |
| Jun 22, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Chester, Cumberland, Dauphin, Franklin and 9 more | 5 hr |
| Jun 22, 2:07 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 23 min |
| Jun 22, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 33 min |
| Jun 22, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 47 min |
| Jun 22, 3:00 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 45 min |
| Jun 22, 3:21 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Jun 22, 3:54 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Jun 22, 4:05 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 25 min |
| Jun 22, 4:30 PM EDT | Flash Flood Warning | CTP | Dauphin, York | 3 hr |
| Jun 22, 4:41 PM EDT | Severe Thunderstorm Warning | CTP | York | 49 min |
| Jun 22, 5:18 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 27 min |
| Jun 22, 5:23 PM EDT | Tornado Warning | CTP | Lancaster | 37 min |
| Jun 22, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 64 min |
| Jun 22, 5:57 PM EDT | Tornado Warning | CTP | Lancaster | 33 min |
| Jun 22, 6:08 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 22, 6:11 PM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Jun 22, 6:48 PM EDT | Flash Flood Warning | PHI | Chester | 117 min |
| Jun 22, 6:58 PM EDT | Flash Flood Warning | PHI | Lehigh | 2 hr |
| Jun 22, 7:00 PM EDT | Severe Thunderstorm Watch | SPC | Chester, Delaware, Lancaster, Philadelphia, York | 4 hr |
| Jun 22, 7:30 PM EDT | Flash Flood Warning | CTP | York | 6 hr |
| Jun 22, 8:12 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 22, 8:30 PM EDT | Flash Flood Warning | CTP | Franklin | 6 hr |
| Jun 22, 9:21 PM EDT | Flash Flood Warning | CTP | Lancaster | 4 hr |
| Jun 23, 9:39 AM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jun 23, 12:41 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jun 27, 7:26 PM EDT | Flash Flood Warning | CTP | Bedford | 2 hr |
| Jun 27, 7:26 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 49 min |
| Jun 30, 12:57 PM EDT | Severe Thunderstorm Warning | CTP | York | 33 min |
| Jun 30, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 60 min |
| Jun 30, 5:04 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 41 min |
| Jun 30, 5:24 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 51 min |
| Jun 30, 7:38 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 37 min |
| Jun 30, 8:15 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 45 min |
| Jun 30, 10:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 52 min |
| Jul 1, 11:35 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 55 min |
| Jul 1, 11:51 AM EDT | Severe Thunderstorm Warning | CTP | Tioga | 54 min |
| Jul 1, 12:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 11 more | 6 hr |
| Jul 1, 12:00 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bradford, Bucks and 42 more | 6 hr |
| Jul 1, 12:02 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Venango | 58 min |
| Jul 1, 12:09 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 66 min |
| Jul 1, 12:24 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 66 min |
| Jul 1, 12:33 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 57 min |
| Jul 1, 12:40 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 65 min |
| Jul 1, 12:42 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Potter | 63 min |
| Jul 1, 12:47 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 58 min |
| Jul 1, 12:49 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 56 min |
| Jul 1, 1:00 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 60 min |
| Jul 1, 1:09 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 36 min |
| Jul 1, 1:10 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 65 min |
| Jul 1, 1:20 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 55 min |
| Jul 1, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 25 min |
| Jul 1, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 64 min |
| Jul 1, 1:28 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 62 min |
| Jul 1, 1:36 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 54 min |
| Jul 1, 1:48 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 42 min |
| Jul 1, 1:50 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 55 min |
| Jul 1, 1:53 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 67 min |
| Jul 1, 1:53 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 67 min |
| Jul 1, 2:00 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 60 min |
| Jul 1, 2:03 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 42 min |
| Jul 1, 2:09 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 66 min |
| Jul 1, 2:10 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna | 35 min |
| Jul 1, 2:13 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 62 min |
| Jul 1, 2:14 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 61 min |
| Jul 1, 2:22 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jul 1, 2:29 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 61 min |
| Jul 1, 2:30 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 45 min |
| Jul 1, 2:36 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 54 min |
| Jul 1, 2:43 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 62 min |
| Jul 1, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Northampton | 61 min |
| Jul 1, 2:57 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 63 min |
| Jul 1, 2:57 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 63 min |
| Jul 1, 3:02 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 58 min |
| Jul 1, 3:12 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 63 min |
| Jul 1, 3:14 PM EDT | Flash Flood Warning | CTP | Cambria | 3 hr |
| Jul 1, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 61 min |
| Jul 1, 3:28 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Huntingdon | 62 min |
| Jul 1, 3:53 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 67 min |
| Jul 1, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 62 min |
| Jul 1, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 39 min |
| Jul 1, 4:08 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 37 min |
| Jul 1, 4:30 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Bucks, Chester, Cumberland and 11 more | 5 hr |
| Jul 1, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 73 min |
| Jul 1, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Montgomery | 40 min |
| Jul 1, 4:37 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 68 min |
| Jul 1, 5:15 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Jul 1, 5:15 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 45 min |
| Jul 1, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 29 min |
| Jul 4, 4:47 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 58 min |
| Jul 5, 6:37 AM EDT | Flash Flood Warning | PBZ | Greene | 3 hr |
| Jul 5, 1:08 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 67 min |
| Jul 5, 1:54 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 66 min |
| Jul 5, 2:42 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 63 min |
| Jul 5, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 65 min |
| Jul 5, 3:05 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 55 min |
| Jul 5, 3:59 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 46 min |
| Jul 10, 7:37 AM EDT | Severe Thunderstorm Warning | CTP | McKean | 53 min |
| Jul 10, 1:24 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 36 min |
| Jul 10, 1:41 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 79 min |
| Jul 10, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bucks, Cambria and 18 more | 7 hr |
| Jul 10, 2:15 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 30 min |
| Jul 10, 2:28 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 47 min |
| Jul 10, 2:35 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, York | 40 min |
| Jul 10, 2:45 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 60 min |
| Jul 10, 2:46 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 44 min |
| Jul 10, 2:59 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 46 min |
| Jul 10, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | Carbon, Monroe, Pike, Wayne | 5 hr |
| Jul 10, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 41 min |
| Jul 10, 3:06 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 24 min |
| Jul 10, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 49 min |
| Jul 10, 3:17 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 43 min |
| Jul 10, 3:24 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 66 min |
| Jul 10, 3:26 PM EDT | Tornado Warning | CTP | Clinton | 34 min |
| Jul 10, 3:31 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 44 min |
| Jul 10, 3:34 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 41 min |
| Jul 10, 3:35 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 40 min |
| Jul 10, 3:37 PM EDT | Tornado Warning | CTP | Franklin | 23 min |
| Jul 10, 3:49 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 41 min |
| Jul 10, 3:54 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 51 min |
| Jul 10, 4:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Fayette, Greene, Washington, Westmoreland | 7 hr |
| Jul 10, 4:16 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 44 min |
| Jul 10, 4:22 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 38 min |
| Jul 10, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 34 min |
| Jul 10, 4:37 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 53 min |
| Jul 10, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 52 min |
| Jul 10, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 46 min |
| Jul 10, 5:01 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington | 59 min |
| Jul 10, 5:04 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Snyder | 56 min |
| Jul 10, 5:40 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 65 min |
| Jul 10, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 35 min |
| Jul 10, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 64 min |
| Jul 10, 5:44 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jul 10, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 45 min |
| Jul 10, 6:21 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 39 min |
| Jul 10, 6:42 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 48 min |
| Jul 10, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 47 min |
| Jul 10, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 54 min |
| Jul 10, 7:14 PM EDT | Tornado Warning | CTP | Dauphin | 46 min |
| Jul 10, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 67 min |
| Jul 10, 8:09 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 51 min |
| Jul 10, 11:48 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 57 min |
| Jul 11, 12:24 AM EDT | Severe Thunderstorm Warning | CTP | Cameron | 51 min |
| Jul 11, 2:09 AM EDT | Severe Thunderstorm Warning | PBZ | Forest | 36 min |
| Jul 11, 2:15 AM EDT | Severe Thunderstorm Warning | CTP | Elk | 45 min |
| Jul 11, 2:59 AM EDT | Tornado Warning | CTP | Clearfield, Elk | 31 min |
| Jul 11, 3:30 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bradford, Cambria and 32 more | 6 hr |
| Jul 11, 3:36 AM EDT | Severe Thunderstorm Warning | CTP | Centre | 54 min |
| Jul 11, 3:45 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 45 min |
| Jul 11, 4:08 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 67 min |
| Jul 11, 4:08 AM EDT | Severe Thunderstorm Warning | CTP | Union | 67 min |
| Jul 11, 4:10 AM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 65 min |
| Jul 11, 4:57 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna | 33 min |
| Jul 11, 5:00 AM EDT | Tornado Warning | CTP | Snyder, Union | 30 min |
| Jul 11, 5:17 AM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 58 min |
| Jul 11, 5:20 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 40 min |
| Jul 11, 5:22 AM EDT | Tornado Warning | CTP | Northumberland | 23 min |
| Jul 11, 5:30 AM EDT | Severe Thunderstorm Watch | SPC | Bucks, Lehigh, Monroe, Montgomery, Northampton, Pike | 5 hr |
| Jul 11, 6:01 AM EDT | Severe Thunderstorm Warning | PHI | Monroe | 44 min |
| Jul 17, 4:01 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 44 min |
| Jul 17, 4:35 PM EDT | Severe Thunderstorm Warning | CTP | Union | 55 min |
| Jul 17, 7:00 PM EDT | Flash Flood Warning | BGM | Luzerne | 2 hr |
| Jul 17, 8:19 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 41 min |
| Jul 17, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 56 min |
| Jul 17, 9:41 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 34 min |
| Jul 19, 5:09 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 51 min |
| Jul 24, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 58 min |
| Jul 25, 4:00 PM EDT | Flash Flood Warning | PHI | Monroe | 2 hr |
| Jul 25, 5:27 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 48 min |
| Jul 25, 5:38 PM EDT | Flash Flood Warning | CTP | Schuylkill | 3 hr |
| Jul 25, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 67 min |
| Jul 25, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 26 min |
| Jul 25, 6:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 50 min |
| Jul 25, 7:06 PM EDT | Flash Flood Warning | CTP | Bedford, Blair, Huntingdon | 3 hr |
| Jul 25, 8:03 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Jul 25, 8:40 PM EDT | Flash Flood Warning | CTP | Schuylkill | 3 hr |
| Jul 25, 9:24 PM EDT | Flash Flood Warning | CTP | Dauphin | 3 hr |
| Jul 25, 9:46 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 29 min |
| Jul 25, 10:20 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 1, 1:45 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 15 min |
| Aug 3, 9:14 AM EDT | Flash Flood Warning | CLE | Erie | 2 hr |
| Aug 3, 8:30 PM EDT | Flash Flood Warning | CTP | Dauphin | 3 hr |
| Aug 4, 5:43 AM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 4 hr |
| Aug 4, 4:26 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 19 min |
| Aug 4, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 22 min |
| Aug 4, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 24 min |
| Aug 4, 5:10 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 35 min |
| Aug 4, 5:30 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 30 min |
| Aug 4, 6:19 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 41 min |
| Aug 4, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 66 min |
| Aug 4, 7:19 PM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 3 hr |
| Aug 4, 7:29 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 61 min |
| Aug 8, 5:58 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 32 min |
| Aug 8, 7:27 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 63 min |
| Aug 9, 6:46 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 44 min |
| Aug 10, 12:25 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 65 min |
| Aug 10, 12:45 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Carbon, Chester, Cumberland and 15 more | 7 hr |
| Aug 10, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 32 min |
| Aug 10, 1:21 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 24 min |
| Aug 10, 1:39 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 66 min |
| Aug 10, 1:45 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 30 min |
| Aug 10, 2:11 PM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon | 3 hr |
| Aug 10, 2:14 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 61 min |
| Aug 10, 5:02 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Aug 11, 10:17 AM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 11, 11:20 AM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Aug 11, 11:35 AM EDT | Flash Flood Warning | PHI | Lehigh | 3 hr |
| Aug 11, 12:45 PM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Aug 11, 12:55 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 11, 2:45 PM EDT | Flash Flood Warning | PHI | Lehigh | 90 min |
| Aug 12, 5:37 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 12, 6:21 PM EDT | Flash Flood Warning | PHI | Montgomery | 3 hr |
| Aug 12, 6:57 PM EDT | Flash Flood Warning | PHI | Chester | 2 hr |
| Aug 12, 9:05 PM EDT | Flash Flood Warning | PHI | Chester | 115 min |
| Aug 13, 2:17 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 58 min |
| Aug 13, 3:35 PM EDT | Severe Thunderstorm Warning | CTP | York | 55 min |
| Aug 14, 12:29 AM EDT | Flash Flood Warning | CTP | Dauphin, Perry | 3 hr |
| Aug 16, 4:11 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 34 min |
| Aug 16, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 39 min |
| Aug 16, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 59 min |
| Aug 16, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 44 min |
| Aug 16, 4:39 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 66 min |
| Aug 16, 4:58 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 47 min |
| Aug 16, 6:15 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 60 min |
| Aug 16, 6:51 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield, Elk | 54 min |
| Aug 16, 7:49 PM EDT | Tornado Warning | CTP | Clearfield | 26 min |
| Aug 16, 8:12 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 63 min |
| Aug 16, 8:13 PM EDT | Tornado Warning | CTP | Clearfield | 32 min |
| Aug 16, 8:45 PM EDT | Tornado Warning | CTP | Cameron, Clinton | 30 min |
| Aug 16, 9:19 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 56 min |
| Aug 16, 9:34 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 41 min |
| Aug 16, 9:59 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 61 min |
| Aug 19, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 23 more | 5 hr |
| Aug 19, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 43 min |
| Aug 19, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest | 57 min |
| Aug 19, 3:36 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 54 min |
| Aug 19, 3:39 PM EDT | Tornado Warning | PBZ | Forest | 51 min |
| Aug 19, 3:54 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 36 min |
| Aug 19, 3:55 PM EDT | Tornado Warning | CTP | Elk | 50 min |
| Aug 19, 3:57 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 63 min |
| Aug 19, 4:07 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 53 min |
| Aug 19, 4:14 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 31 min |
| Aug 19, 4:18 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 57 min |
| Aug 19, 4:20 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 70 min |
| Aug 19, 4:41 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 19 min |
| Aug 19, 4:43 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 62 min |
| Aug 19, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 64 min |
| Aug 19, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 53 min |
| Aug 19, 5:25 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 65 min |
| Aug 19, 5:29 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 46 min |
| Aug 19, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 48 min |
| Aug 19, 6:15 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Clinton, Columbia, Dauphin, Juniata, Luzerne and 12 more | 4 hr |
| Aug 19, 6:20 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 55 min |
| Aug 19, 6:24 PM EDT | Flash Flood Warning | CTP | Centre | 3 hr |
| Aug 19, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Union | 46 min |
| Aug 19, 6:45 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 45 min |
| Aug 19, 6:51 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 24 min |
| Aug 19, 7:30 PM EDT | Severe Thunderstorm Warning | CTP | Union | 60 min |
| Aug 19, 7:55 PM EDT | Severe Thunderstorm Warning | CTP | Montour, Northumberland | 35 min |
| Aug 19, 8:36 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 69 min |
| Aug 19, 9:35 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
| Aug 26, 2:03 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 57 min |
| Aug 26, 6:54 PM EDT | Tornado Warning | CTP | Potter | 36 min |
| Aug 26, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 53 min |
| Aug 26, 8:07 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 53 min |
| Aug 26, 9:00 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 60 min |
| Aug 28, 11:19 AM EDT | Severe Thunderstorm Warning | CTP | Potter | 56 min |
| Aug 28, 11:50 AM EDT | Severe Thunderstorm Warning | CTP | Tioga | 55 min |
| Aug 28, 12:08 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 67 min |
| Aug 28, 1:11 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 64 min |
| Aug 28, 1:39 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 66 min |
| Aug 28, 1:53 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 52 min |
| Aug 28, 1:57 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 78 min |
| Aug 28, 2:19 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 56 min |
| Aug 28, 2:19 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 26 min |
| Aug 28, 2:41 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 64 min |
| Aug 28, 2:49 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 56 min |
| Aug 28, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 53 min |
| Aug 28, 3:17 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 58 min |
| Aug 28, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 69 min |
| Aug 28, 3:36 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 39 min |
| Aug 28, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 73 min |
| Aug 28, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 42 min |
| Aug 28, 3:52 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 38 min |
| Aug 28, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 65 min |
| Aug 28, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 60 min |
| Aug 28, 4:40 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 50 min |
| Aug 28, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 47 min |
| Aug 28, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 26 min |
| Aug 28, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 41 min |
| Aug 28, 6:15 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 60 min |
| Aug 30, 8:15 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 60 min |
| Aug 31, 8:13 AM EDT | Flash Flood Warning | CLE | Erie | 2 hr |
| Aug 31, 10:50 AM EDT | Severe Thunderstorm Warning | CTP | McKean | 70 min |
| Aug 31, 2:12 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 63 min |
| Aug 31, 2:54 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 66 min |
| Aug 31, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | York | 64 min |
| Aug 31, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bradford, Carbon, Columbia, Dauphin, Juniata and 18 more | 6 hr |
| Aug 31, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 62 min |
| Aug 31, 4:03 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 72 min |
| Aug 31, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 78 min |
| Aug 31, 4:16 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 59 min |
| Aug 31, 5:05 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 55 min |
| Aug 31, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Snyder, Union | 34 min |
| Aug 31, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 78 min |
| Aug 31, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 28 min |
| Aug 31, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 31 min |
| Aug 31, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 24 min |
| Aug 31, 7:25 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 50 min |
| Sep 4, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Union | 58 min |
| Sep 4, 2:37 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 53 min |
| Sep 4, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 7 more | 6 hr |
| Sep 4, 3:01 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 59 min |
| Sep 4, 3:59 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 61 min |
| Sep 4, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 49 min |
| Sep 4, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 52 min |
| Sep 10, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 53 min |
| Sep 13, 5:04 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 56 min |
| Sep 13, 5:34 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 41 min |
| Sep 13, 5:41 PM EDT | Tornado Warning | CTP | Lycoming | 34 min |
| Sep 13, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 63 min |
| Sep 13, 6:23 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 67 min |
| Sep 13, 6:39 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 66 min |
| Sep 13, 7:14 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 31 min |
| Sep 13, 7:18 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 57 min |
| Sep 13, 7:40 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 65 min |
| Sep 13, 8:46 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 29 min |
| Sep 13, 9:55 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 35 min |
| Sep 24, 4:15 PM EDT | Tornado Watch | SPC | Adams, Berks, Bradford, Carbon, Columbia, Cumberland and 19 more | 6 hr |
| Sep 24, 6:22 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 53 min |
| Sep 24, 6:53 PM EDT | Tornado Warning | CTP | York | 67 min |
| Sep 24, 7:16 PM EDT | Flash Flood Warning | CTP | Adams, York | 3 hr |
| Sep 24, 7:36 PM EDT | Flash Flood Warning | CTP | Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 4 more | 3 hr |
| Sep 24, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 63 min |
| Sep 24, 8:09 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 66 min |
| Sep 24, 9:17 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 58 min |
| Sep 24, 9:43 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 62 min |
| Oct 16, 2:07 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 53 min |
| Oct 16, 3:56 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 49 min |
| Oct 16, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 28 min |
| Oct 16, 4:36 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 24 min |
| Oct 16, 4:52 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Sullivan | 23 min |
| Oct 21, 4:41 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 49 min |
| Oct 21, 4:55 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 65 min |
| Oct 24, 10:45 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 13 more | 5 hr |
| Oct 24, 10:56 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 64 min |
| Oct 25, 12:31 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 59 min |
| Oct 25, 2:25 AM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 35 min |
| Nov 30, 12:50 PM EST | Severe Thunderstorm Warning | CTP | Cambria | 55 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 410 |
| Tornado Warning | 21 |
| Severe Thunderstorm Watch | 28 |
| Tornado Watch | 2 |
| Flooding | |
| Flash Flood Warning | 94 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lancaster County38
- York County35
- Berks County35
- Dauphin County31
- Lebanon County27
- Lycoming County26
- Clinton County25
- Northumberland County25
- Franklin County25
- Perry County25
- Schuylkill County25
- Clearfield County24
- Cambria County24
- Bucks County24
- Columbia County23
- Washington County23
- Lehigh County23
- Montgomery County23
- Centre County22
- Chester County22
- Blair County21
- Adams County21
- Northampton County21
- Huntingdon County20
- Juniata County20
- Union County20
- Bradford County20
- Cumberland County19
- Fayette County19
- Monroe County19
- Bedford County18
- Montour County18
- Allegheny County18
- Somerset County17
- Snyder County17
- Tioga County16
- Westmoreland County16
- Luzerne County16
- Philadelphia County16
- McKean County15
27 more counties
- Fulton County15
- Mifflin County15
- Sullivan County15
- Crawford County15
- Susquehanna County15
- Wayne County15
- Pike County15
- Delaware County15
- Elk County14
- Greene County14
- Lackawanna County14
- Carbon County14
- Potter County13
- Butler County13
- Beaver County13
- Lawrence County12
- Venango County12
- Indiana County12
- Jefferson County11
- Warren County10
- Mercer County10
- Armstrong County10
- Cameron County8
- Forest County8
- Wyoming County8
- Clarion County7
- Erie County7
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20002002
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.