Weather alerts in Pennsylvania, 1990
447 weather alerts in 1990, 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 1990. Tap one for its archive.
- Alerts
- 447
- Warnings
- 447
- Watches
- 0
- Advisories
- 0
- Busiest month
- July147 alerts
- Busiest day
- July 9, 199030 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 25, 4:59 PM EST | Severe Thunderstorm Warning | PBZ | Butler | 61 min |
| Jan 30, 4:25 AM EST | Flash Flood Warning | PHI | Montgomery | 4 hr |
| Feb 15, 10:45 PM EST | Flash Flood Warning | PBZ | Butler | 3 hr |
| Feb 16, 3:01 PM EST | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Feb 16, 3:22 PM EST | Severe Thunderstorm Warning | CLE | Erie | 53 min |
| Feb 16, 4:15 PM EST | Severe Thunderstorm Warning | PBZ | Beaver, Butler | 60 min |
| Feb 16, 4:23 PM EST | Severe Thunderstorm Warning | CLE | Venango | 37 min |
| Feb 16, 5:10 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong | 65 min |
| Feb 16, 5:27 PM EST | Severe Thunderstorm Warning | PBZ | Westmoreland | 63 min |
| Feb 16, 5:48 PM EST | Severe Thunderstorm Warning | PBZ | Washington | 49 min |
| Feb 16, 5:48 PM EST | Severe Thunderstorm Warning | PBZ | Indiana | 49 min |
| Feb 16, 6:37 PM EST | Severe Thunderstorm Warning | PBZ | Clearfield, Jefferson | 53 min |
| Feb 16, 6:48 PM EST | Severe Thunderstorm Warning | CTP | Clinton | 42 min |
| Feb 16, 7:00 PM EST | Severe Thunderstorm Warning | CTP | Tioga | 60 min |
| Apr 1, 4:49 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 56 min |
| Apr 1, 5:18 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Somerset | 62 min |
| Apr 1, 6:20 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 70 min |
| Apr 25, 4:00 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 60 min |
| May 13, 7:19 PM EDT | Tornado Warning | CTP | York | 41 min |
| May 13, 7:36 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon | 54 min |
| May 15, 3:58 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 62 min |
| May 15, 4:53 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 3 hr |
| May 15, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 58 min |
| May 16, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 74 min |
| May 16, 8:18 PM EDT | Flash Flood Warning | CTP | Montour | 3 hr |
| May 17, 2:07 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 38 min |
| May 17, 2:22 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 38 min |
| May 17, 2:52 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 38 min |
| May 17, 2:55 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 35 min |
| May 20, 10:02 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| May 27, 7:07 PM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| May 29, 1:43 PM EDT | Flash Flood Warning | PHI | Chester | 62 min |
| Jun 3, 8:44 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 61 min |
| Jun 3, 10:48 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 72 min |
| Jun 3, 10:59 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 61 min |
| Jun 6, 8:22 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 68 min |
| Jun 6, 11:00 PM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Jun 8, 7:14 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 61 min |
| Jun 8, 7:25 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 65 min |
| Jun 8, 7:49 AM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 56 min |
| Jun 8, 9:05 AM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Somerset | 55 min |
| Jun 8, 3:40 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Somerset | 65 min |
| Jun 8, 4:13 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 62 min |
| Jun 8, 4:58 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 47 min |
| Jun 8, 5:27 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 48 min |
| Jun 8, 7:09 PM EDT | Tornado Warning | PBZ | Westmoreland | 66 min |
| Jun 8, 8:29 PM EDT | Tornado Warning | PBZ | Somerset | 61 min |
| Jun 8, 9:29 PM EDT | Tornado Warning | PBZ | Bedford | 61 min |
| Jun 8, 11:21 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler | 2 hr |
| Jun 8, 11:21 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler | 2 hr |
| Jun 9, 12:10 AM EDT | Flash Flood Warning | PBZ | Clearfield, Indiana | 80 min |
| Jun 9, 12:10 AM EDT | Severe Thunderstorm Warning | PBZ | Clearfield, Indiana | 80 min |
| Jun 9, 12:50 AM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 3 hr |
| Jun 9, 1:16 AM EDT | Flash Flood Warning | PBZ | Clearfield | 2 hr |
| Jun 9, 1:50 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 115 min |
| Jun 9, 2:33 AM EDT | Flash Flood Warning | PHI | Montgomery | 57 min |
| Jun 9, 2:33 AM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 57 min |
| Jun 9, 6:00 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 60 min |
| Jun 9, 6:15 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 60 min |
| Jun 9, 6:26 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 64 min |
| Jun 9, 6:46 AM EDT | Severe Thunderstorm Warning | CLE | Forest | 44 min |
| Jun 9, 7:51 AM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Somerset | 39 min |
| Jun 14, 7:08 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 67 min |
| Jun 14, 7:33 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 57 min |
| Jun 14, 7:43 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 62 min |
| Jun 14, 7:56 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 64 min |
| Jun 14, 9:08 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jun 14, 11:09 PM EDT | Flash Flood Warning | PBZ | Fayette | 5 hr |
| Jun 14, 11:29 PM EDT | Flash Flood Warning | PBZ | Allegheny | 5 hr |
| Jun 15, 4:00 AM EDT | Flash Flood Warning | PBZ | Clearfield | 4 hr |
| Jun 15, 4:00 AM EDT | Flash Flood Warning | PBZ | Jefferson | 2 hr |
| Jun 18, 5:54 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 66 min |
| Jun 18, 6:53 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 82 min |
| Jun 18, 7:04 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 56 min |
| Jun 18, 9:08 AM EDT | Severe Thunderstorm Warning | CLE | McKean | 67 min |
| Jun 18, 10:36 AM EDT | Flash Flood Warning | CLE | Elk, McKean | 3 hr |
| Jun 18, 11:00 AM EDT | Severe Thunderstorm Warning | CTP | Tioga | 30 min |
| Jun 18, 11:14 AM EDT | Flash Flood Warning | CLE | Potter | 61 min |
| Jun 18, 11:14 AM EDT | Severe Thunderstorm Warning | CLE | Potter | 61 min |
| Jun 18, 11:25 AM EDT | Severe Thunderstorm Warning | CTP | Bradford | 60 min |
| Jun 18, 11:30 AM EDT | Severe Thunderstorm Warning | CTP | Tioga | 60 min |
| Jun 18, 12:20 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 85 min |
| Jun 18, 12:56 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 64 min |
| Jun 18, 3:33 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 57 min |
| Jun 18, 3:44 PM EDT | Severe Thunderstorm Warning | CTP | Monroe, Northampton | 76 min |
| Jun 18, 3:44 PM EDT | Severe Thunderstorm Warning | CTP | Pike | 76 min |
| Jun 18, 3:53 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 67 min |
| Jun 18, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Carbon | 53 min |
| Jun 18, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Lehigh, Northampton | 51 min |
| Jun 18, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 51 min |
| Jun 18, 7:44 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 2 hr |
| Jun 18, 7:44 PM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 2 hr |
| Jun 19, 2:57 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 33 min |
| Jun 22, 10:38 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 52 min |
| Jun 27, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 45 min |
| Jun 28, 2:44 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
| Jun 28, 5:45 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 2 hr |
| Jun 29, 3:13 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 62 min |
| Jun 29, 4:51 PM EDT | Severe Thunderstorm Warning | CLE | Cameron, Elk | 69 min |
| Jun 29, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 35 min |
| Jun 29, 6:00 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington | 60 min |
| Jun 29, 6:10 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 65 min |
| Jun 29, 6:45 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Somerset | 75 min |
| Jun 29, 6:45 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 75 min |
| Jun 29, 7:30 PM EDT | Severe Thunderstorm Warning | PBZ | Blair, Cambria | 60 min |
| Jun 29, 7:51 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 39 min |
| Jun 30, 4:49 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 56 min |
| Jun 30, 5:21 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 2 hr |
| Jun 30, 5:21 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 2 hr |
| Jun 30, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset, Westmoreland | 64 min |
| Jun 30, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 64 min |
| Jun 30, 5:40 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong | 50 min |
| Jun 30, 6:20 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 55 min |
| Jun 30, 6:20 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Cambria, Somerset | 55 min |
| Jun 30, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington | 65 min |
| Jun 30, 7:03 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield | 57 min |
| Jun 30, 7:15 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 20 min |
| Jun 30, 7:19 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Westmoreland | 41 min |
| Jun 30, 7:19 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Cambria | 41 min |
| Jun 30, 7:27 PM EDT | Severe Thunderstorm Warning | BGM | Wyoming | 93 min |
| Jun 30, 7:27 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 63 min |
| Jun 30, 7:30 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 60 min |
| Jun 30, 7:42 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 48 min |
| Jun 30, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 63 min |
| Jun 30, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 63 min |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Fayette, Washington, Westmoreland | 64 min |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Clarion, Jefferson | 64 min |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Clearfield | 64 min |
| Jun 30, 8:04 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 56 min |
| Jun 30, 8:18 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 62 min |
| Jun 30, 8:27 PM EDT | Flash Flood Warning | PBZ | Somerset | 33 min |
| Jun 30, 8:27 PM EDT | Flash Flood Warning | PBZ | Allegheny | 33 min |
| Jun 30, 8:36 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 69 min |
| Jun 30, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Juniata, Mifflin, Snyder, Union | 69 min |
| Jun 30, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 69 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Clearfield, Indiana, Jefferson | 61 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Cambria, Somerset, Westmoreland | 61 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Fayette | 61 min |
| Jun 30, 9:18 PM EDT | Severe Thunderstorm Warning | BGM | Wyoming | 87 min |
| Jun 30, 9:27 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 63 min |
| Jun 30, 9:36 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 69 min |
| Jun 30, 9:50 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 55 min |
| Jun 30, 9:50 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 55 min |
| Jun 30, 9:54 PM EDT | Flash Flood Warning | PBZ | Clearfield, Jefferson | 66 min |
| Jun 30, 9:54 PM EDT | Flash Flood Warning | PBZ | Fayette | 66 min |
| Jun 30, 10:19 PM EDT | Severe Thunderstorm Warning | CTP | Monroe | 41 min |
| Jun 30, 10:44 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Perry | 61 min |
| Jun 30, 10:44 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 61 min |
| Jun 30, 10:45 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield, Indiana | 60 min |
| Jun 30, 10:57 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jun 30, 11:59 PM EDT | Flash Flood Warning | PBZ | Fayette | 4 hr |
| Jul 1, 11:27 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 63 min |
| Jul 2, 1:15 AM EDT | Flash Flood Warning | PBZ | Somerset | 3 hr |
| Jul 2, 1:25 AM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Jul 5, 12:10 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Warren | 65 min |
| Jul 5, 11:59 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 61 min |
| Jul 5, 12:14 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Indiana | 61 min |
| Jul 5, 12:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Jul 5, 12:59 PM EDT | Severe Thunderstorm Warning | PBZ | Blair, Cambria, Westmoreland | 61 min |
| Jul 5, 12:59 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 61 min |
| Jul 5, 1:32 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Somerset | 58 min |
| Jul 5, 1:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 58 min |
| Jul 5, 2:05 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 25 min |
| Jul 5, 2:26 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 34 min |
| Jul 5, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | Lehigh | 62 min |
| Jul 5, 2:34 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jul 5, 2:34 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset | 56 min |
| Jul 5, 3:01 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 59 min |
| Jul 5, 3:16 PM EDT | Severe Thunderstorm Warning | CTP | York | 29 min |
| Jul 5, 8:12 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington | 2 hr |
| Jul 5, 8:12 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 73 min |
| Jul 9, 12:48 PM EDT | Flash Flood Warning | CLE | Venango | 57 min |
| Jul 9, 12:48 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 57 min |
| Jul 9, 12:54 PM EDT | Flash Flood Warning | PBZ | Clarion, Jefferson | 2 hr |
| Jul 9, 12:54 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 2 hr |
| Jul 9, 1:12 PM EDT | Flash Flood Warning | PBZ | Clearfield | 108 min |
| Jul 9, 1:12 PM EDT | Flash Flood Warning | PBZ | Armstrong | 108 min |
| Jul 9, 1:21 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield | 99 min |
| Jul 9, 1:21 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 99 min |
| Jul 9, 1:34 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 41 min |
| Jul 9, 1:35 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler | 85 min |
| Jul 9, 1:40 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 50 min |
| Jul 9, 1:50 PM EDT | Flash Flood Warning | CLE | Venango | 70 min |
| Jul 9, 1:50 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 70 min |
| Jul 9, 2:04 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Union | 56 min |
| Jul 9, 2:04 PM EDT | Severe Thunderstorm Warning | CTP | Snyder | 56 min |
| Jul 9, 2:09 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 81 min |
| Jul 9, 2:42 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Mifflin, Snyder, Union | 48 min |
| Jul 9, 3:00 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 2 hr |
| Jul 9, 3:01 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver | 89 min |
| Jul 9, 3:01 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 89 min |
| Jul 9, 3:09 PM EDT | Severe Thunderstorm Warning | CTP | Carbon, Monroe, Northampton | 66 min |
| Jul 9, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 60 min |
| Jul 9, 3:50 PM EDT | Flash Flood Warning | PBZ | Washington, Westmoreland | 100 min |
| Jul 9, 3:50 PM EDT | Severe Thunderstorm Warning | PBZ | Washington, Westmoreland | 100 min |
| Jul 9, 4:07 PM EDT | Severe Thunderstorm Warning | CTP | Northampton | 38 min |
| Jul 9, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 44 min |
| Jul 9, 4:36 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver | 114 min |
| Jul 9, 4:57 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset | 48 min |
| Jul 9, 5:19 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 56 min |
| Jul 9, 6:29 PM EDT | Flash Flood Warning | PBZ | Armstrong | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Indiana | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Clearfield | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Jefferson | 93 min |
| Jul 10, 3:40 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 65 min |
| Jul 12, 9:20 AM EDT | Flash Flood Warning | PBZ | Beaver, Butler | 4 hr |
| Jul 12, 10:12 AM EDT | Flash Flood Warning | CLE | Lawrence | 4 hr |
| Jul 12, 10:35 AM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Jefferson | 3 hr |
| Jul 12, 12:08 PM EDT | Flash Flood Warning | PBZ | Indiana | 112 min |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Armstrong, Beaver, Butler, Clarion | 3 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Clearfield | 2 hr |
| Jul 12, 12:59 PM EDT | Flash Flood Warning | CLE | Elk, McKean | 3 hr |
| Jul 12, 3:50 PM EDT | Flash Flood Warning | PBZ | Bedford, Cambria | 2 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Beaver, Butler, Westmoreland | 4 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Jefferson | 4 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Jul 12, 11:59 PM EDT | Flash Flood Warning | PBZ | Beaver | 4 hr |
| Jul 13, 4:00 AM EDT | Flash Flood Warning | PBZ | Beaver | 6 hr |
| Jul 14, 11:13 PM EDT | Flash Flood Warning | PBZ | Beaver, Washington | 5 hr |
| Jul 14, 11:13 PM EDT | Flash Flood Warning | PBZ | Greene | 5 hr |
| Jul 15, 1:07 AM EDT | Flash Flood Warning | CLE | Lawrence | 2 hr |
| Jul 15, 1:59 AM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| Jul 15, 2:06 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 2:45 AM EDT | Flash Flood Warning | PBZ | Beaver, Washington | 5 hr |
| Jul 15, 2:45 AM EDT | Flash Flood Warning | PBZ | Greene | 5 hr |
| Jul 15, 3:10 AM EDT | Flash Flood Warning | CLE | Lawrence, Mercer | 3 hr |
| Jul 15, 4:40 AM EDT | Flash Flood Warning | CLE | Venango | 3 hr |
| Jul 15, 4:43 AM EDT | Flash Flood Warning | PBZ | Allegheny, Butler | 3 hr |
| Jul 15, 5:26 AM EDT | Flash Flood Warning | CLE | Warren | 3 hr |
| Jul 15, 5:44 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 7:08 AM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Jul 15, 7:39 AM EDT | Flash Flood Warning | CLE | Crawford, Venango, Warren | 2 hr |
| Jul 15, 9:53 AM EDT | Flash Flood Warning | CLE | Crawford, Venango, Warren | 3 hr |
| Jul 15, 12:36 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jul 15, 1:00 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 2 hr |
| Jul 15, 2:30 PM EDT | Flash Flood Warning | PBZ | Somerset | 2 hr |
| Jul 15, 2:30 PM EDT | Flash Flood Warning | PBZ | Indiana | 2 hr |
| Jul 15, 2:52 PM EDT | Flash Flood Warning | PBZ | Beaver, Butler | 2 hr |
| Jul 15, 3:15 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 75 min |
| Jul 15, 3:50 PM EDT | Flash Flood Warning | PBZ | Bedford, Cambria | 2 hr |
| Jul 15, 4:17 PM EDT | Flash Flood Warning | PBZ | Blair, Clearfield | 3 hr |
| Jul 15, 4:53 PM EDT | Flash Flood Warning | PBZ | Beaver | 3 hr |
| Jul 20, 2:12 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 63 min |
| Jul 20, 2:55 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 65 min |
| Jul 20, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 65 min |
| Jul 20, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria | 63 min |
| Jul 20, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 63 min |
| Jul 20, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 60 min |
| Jul 20, 4:24 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset | 66 min |
| Jul 20, 5:01 PM EDT | Flash Flood Warning | PBZ | Fayette, Somerset | 119 min |
| Jul 20, 5:01 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Somerset | 119 min |
| Jul 20, 6:29 PM EDT | Flash Flood Warning | PBZ | Butler | 2 hr |
| Jul 21, 2:05 PM EDT | Flash Flood Warning | PBZ | Allegheny | 115 min |
| Jul 21, 3:20 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jul 21, 3:20 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Jul 21, 8:48 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 2 hr |
| Jul 22, 4:18 PM EDT | Flash Flood Warning | PBZ | Allegheny, Butler | 102 min |
| Jul 22, 5:31 PM EDT | Tornado Warning | PBZ | Beaver | 59 min |
| Jul 22, 5:32 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 58 min |
| Jul 22, 5:58 PM EDT | Tornado Warning | PBZ | Butler | 62 min |
| Jul 22, 6:11 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 64 min |
| Jul 22, 6:38 PM EDT | Flash Flood Warning | PBZ | Clearfield | 67 min |
| Jul 22, 6:57 PM EDT | Tornado Warning | PBZ | Butler | 63 min |
| Jul 22, 7:24 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 66 min |
| Jul 22, 7:33 PM EDT | Flash Flood Warning | CLE | Venango | 3 hr |
| Jul 22, 8:02 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 58 min |
| Jul 22, 8:07 PM EDT | Tornado Warning | PBZ | Butler | 53 min |
| Jul 22, 8:31 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 59 min |
| Jul 22, 8:52 PM EDT | Flash Flood Warning | PBZ | Clarion | 3 hr |
| Jul 22, 9:01 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 59 min |
| Jul 22, 11:35 PM EDT | Flash Flood Warning | PBZ | Clarion | 4 hr |
| Jul 22, 11:49 PM EDT | Flash Flood Warning | CLE | Venango | 4 hr |
| Jul 23, 12:54 AM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| Aug 11, 2:15 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 60 min |
| Aug 13, 3:13 PM EDT | Severe Thunderstorm Warning | CTP | Bradford | 47 min |
| Aug 13, 3:25 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 35 min |
| Aug 13, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 43 min |
| Aug 13, 5:35 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 55 min |
| Aug 13, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | Berks | 66 min |
| Aug 13, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | Carbon | 66 min |
| Aug 13, 7:21 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 39 min |
| Aug 13, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Berks, Lehigh | 52 min |
| Aug 13, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Carbon, Northampton | 52 min |
| Aug 13, 7:29 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 61 min |
| Aug 13, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | Lehigh, Northampton | 48 min |
| Aug 13, 8:05 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 40 min |
| Aug 13, 8:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 51 min |
| Aug 19, 5:26 AM EDT | Flash Flood Warning | PBZ | Greene | 3 hr |
| Aug 19, 5:59 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 61 min |
| Aug 19, 6:40 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Aug 19, 6:54 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 66 min |
| Aug 19, 6:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 3 hr |
| Aug 19, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria | 80 min |
| Aug 19, 8:05 PM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 81 min |
| Aug 19, 10:50 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 2 hr |
| Aug 27, 6:00 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Aug 27, 6:34 PM EDT | Flash Flood Warning | PHI | Montgomery, Philadelphia | 116 min |
| Aug 27, 6:34 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 116 min |
| Aug 28, 2:46 AM EDT | Severe Thunderstorm Warning | PBZ | Clearfield, Jefferson | 59 min |
| Aug 28, 3:40 AM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Indiana | 65 min |
| Aug 28, 3:44 AM EDT | Severe Thunderstorm Warning | CTP | Tioga | 46 min |
| Aug 28, 3:44 AM EDT | Severe Thunderstorm Warning | CTP | Clinton | 46 min |
| Aug 28, 3:56 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 64 min |
| Aug 28, 6:15 PM EDT | Tornado Warning | CLE | Erie | 60 min |
| Aug 28, 7:16 PM EDT | Tornado Warning | CLE | Erie | 59 min |
| Aug 28, 7:44 PM EDT | Severe Thunderstorm Warning | CLE | Forest, Venango, Warren | 61 min |
| Aug 28, 7:54 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 66 min |
| Aug 28, 8:16 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 59 min |
| Aug 28, 8:20 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie, Venango, Warren | 70 min |
| Aug 28, 8:20 PM EDT | Severe Thunderstorm Warning | CLE | Cameron, Elk, Forest, McKean, Potter | 70 min |
| Aug 28, 8:25 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 50 min |
| Aug 28, 8:26 PM EDT | Tornado Warning | CLE | Erie | 64 min |
| Aug 28, 9:03 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 60 min |
| Aug 28, 9:31 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Venango | 59 min |
| Aug 28, 9:33 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 57 min |
| Aug 28, 10:05 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Union | 55 min |
| Aug 28, 10:19 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 56 min |
| Aug 28, 10:26 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 34 min |
| Aug 28, 10:32 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 58 min |
| Aug 28, 10:38 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 67 min |
| Aug 28, 11:12 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Somerset, Westmoreland | 63 min |
| Aug 28, 11:12 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 63 min |
| Aug 28, 11:17 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 43 min |
| Aug 28, 11:47 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford | 58 min |
| Aug 29, 12:08 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Somerset, Westmoreland | 67 min |
| Aug 29, 6:17 PM EDT | Severe Thunderstorm Warning | CTP | York | 43 min |
| Sep 2, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 75 min |
| Sep 2, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset, Westmoreland | 75 min |
| Sep 2, 4:50 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 55 min |
| Sep 2, 6:12 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 43 min |
| Sep 2, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Carbon, Schuylkill | 28 min |
| Sep 5, 8:24 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 36 min |
| Sep 5, 8:33 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 42 min |
| Sep 6, 3:19 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 56 min |
| Sep 6, 4:10 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 65 min |
| Sep 6, 4:18 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 57 min |
| Sep 6, 4:35 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 55 min |
| Sep 6, 4:35 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Clarion | 85 min |
| Sep 6, 4:50 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 100 min |
| Sep 6, 4:52 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 68 min |
| Sep 6, 5:06 PM EDT | Tornado Warning | PBZ | Butler | 54 min |
| Sep 6, 5:13 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 77 min |
| Sep 6, 5:13 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 77 min |
| Sep 6, 5:52 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Clearfield, Indiana | 98 min |
| Sep 6, 5:52 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 98 min |
| Sep 6, 5:52 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 98 min |
| Sep 6, 6:29 PM EDT | Tornado Warning | PBZ | Westmoreland | 61 min |
| Sep 6, 6:51 PM EDT | Tornado Warning | PBZ | Somerset | 69 min |
| Sep 6, 6:56 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Blair | 64 min |
| Sep 6, 7:46 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 59 min |
| Sep 6, 8:44 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
| Sep 6, 9:01 PM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Sep 6, 9:18 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 87 min |
| Sep 6, 9:42 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 78 min |
| Sep 6, 9:42 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 78 min |
| Sep 6, 9:42 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Jefferson | 78 min |
| Sep 6, 9:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler | 78 min |
| Sep 6, 11:00 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 60 min |
| Sep 6, 11:41 PM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Sep 7, 12:06 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 12:06 AM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 4 hr |
| Sep 7, 4:00 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 7:30 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 7, 9:45 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 1:50 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 9, 7:06 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 69 min |
| Sep 12, 7:15 PM EDT | Flash Flood Warning | PBZ | Cambria | 3 hr |
| Sep 12, 8:16 PM EDT | Flash Flood Warning | PBZ | Fayette | 104 min |
| Sep 14, 6:11 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 94 min |
| Sep 14, 6:55 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 65 min |
| Sep 14, 7:14 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 91 min |
| Sep 14, 7:18 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 57 min |
| Sep 14, 7:18 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 57 min |
| Sep 14, 7:36 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 69 min |
| Sep 14, 7:58 PM EDT | Severe Thunderstorm Warning | PBZ | Washington, Westmoreland | 62 min |
| Sep 14, 7:58 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 62 min |
| Sep 14, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Jefferson, Westmoreland | 55 min |
| Sep 14, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 55 min |
| Sep 14, 9:26 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 64 min |
| Sep 14, 9:53 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Somerset | 67 min |
| Sep 14, 9:53 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield | 67 min |
| Sep 14, 10:54 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 51 min |
| Sep 14, 11:16 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 44 min |
| Oct 11, 1:20 PM EDT | Flash Flood Warning | CTP | Tioga | 4 hr |
| Oct 13, 1:49 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry | 56 min |
| Oct 13, 2:25 AM EDT | Flash Flood Warning | CTP | Cumberland, Perry | 65 min |
| Oct 13, 2:25 AM EDT | Flash Flood Warning | CTP | Northumberland, Union | 65 min |
| Oct 13, 3:44 AM EDT | Flash Flood Warning | CTP | Northumberland, Snyder, Union | 61 min |
| Oct 13, 3:44 AM EDT | Flash Flood Warning | CTP | Cumberland, Juniata, Perry | 61 min |
| Oct 13, 4:50 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry, Snyder, Union | 55 min |
| Oct 13, 5:42 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry, Snyder, Union | 2 hr |
| Oct 13, 6:50 AM EDT | Flash Flood Warning | CTP | Bradford | 4 hr |
| Oct 13, 7:55 AM EDT | Flash Flood Warning | CTP | Lycoming | 4 hr |
| Oct 13, 9:44 AM EDT | Flash Flood Warning | CTP | Adams | 3 hr |
| Oct 13, 9:50 AM EDT | Flash Flood Warning | CTP | Lycoming | 4 hr |
| Oct 13, 10:28 AM EDT | Flash Flood Warning | CTP | Union | 3 hr |
| Oct 13, 3:49 PM EDT | Flash Flood Warning | CTP | Cumberland | 4 hr |
| Oct 18, 12:40 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 65 min |
| Oct 18, 4:38 PM EDT | Flash Flood Warning | CTP | York | 2 hr |
| Oct 23, 3:03 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 6 hr |
| Oct 23, 3:05 PM EDT | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Oct 23, 3:19 PM EDT | Flash Flood Warning | CTP | York | 4 hr |
| Oct 23, 3:31 PM EDT | Flash Flood Warning | CTP | Mifflin | 4 hr |
| Oct 23, 3:40 PM EDT | Flash Flood Warning | CTP | Bradford, Tioga | 5 hr |
| Oct 23, 4:00 PM EDT | Flash Flood Warning | CTP | Union | 4 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | Snyder, Union | 3 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Oct 23, 8:55 PM EDT | Flash Flood Warning | CTP | Bradford, Lycoming, Sullivan, Tioga | 3 hr |
| Oct 23, 10:09 PM EDT | Flash Flood Warning | CTP | York | 2 hr |
| Oct 23, 10:09 PM EDT | Flash Flood Warning | CTP | Snyder | 2 hr |
| Oct 23, 11:35 PM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 23, 11:45 PM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 24, 1:47 AM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 24, 4:02 AM EDT | Flash Flood Warning | CTP | Bradford | 4 hr |
| Dec 18, 1:18 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 4 hr |
| Dec 18, 2:02 PM EST | Flash Flood Warning | CLE | Lawrence, Mercer | 3 hr |
| Dec 18, 5:00 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 4 hr |
| Dec 18, 7:00 PM EST | Flash Flood Warning | PBZ | Fayette | 4 hr |
| Dec 18, 8:30 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 3 hr |
| Dec 18, 9:00 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 2 hr |
| Dec 19, 12:56 AM EST | Flash Flood Warning | PBZ | Westmoreland | 6 hr |
| Dec 23, 6:01 AM EST | Severe Thunderstorm Warning | PBZ | Fayette, Somerset, Westmoreland | 59 min |
| Dec 23, 6:01 AM EST | Severe Thunderstorm Warning | PBZ | Cambria, Indiana | 59 min |
| Dec 23, 6:55 AM EST | Severe Thunderstorm Warning | PBZ | Somerset | 35 min |
| Dec 23, 6:55 AM EST | Severe Thunderstorm Warning | PBZ | Bedford, Blair, Cambria | 65 min |
| Dec 30, 8:46 AM EST | Flash Flood Warning | PBZ | Allegheny | 4 hr |
| Dec 30, 8:46 AM EST | Flash Flood Warning | PBZ | Clarion | 4 hr |
| Dec 30, 9:04 AM EST | Flash Flood Warning | PBZ | Beaver, Butler | 4 hr |
| Dec 30, 9:04 AM EST | Flash Flood Warning | PBZ | Armstrong | 4 hr |
| Dec 30, 10:37 AM EST | Flash Flood Warning | CLE | Mercer | 4 hr |
| Dec 30, 10:41 AM EST | Flash Flood Warning | PBZ | Westmoreland | 5 hr |
| Dec 30, 12:30 PM EST | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler, Clarion, Westmoreland | 5 hr |
| Dec 30, 12:30 PM EST | Flash Flood Warning | PBZ | Beaver | 5 hr |
| Dec 30, 12:55 PM EST | Flash Flood Warning | PBZ | Butler | 4 hr |
| Dec 30, 12:56 PM EST | Flash Flood Warning | CLE | Lawrence | 2 hr |
| Dec 30, 1:40 PM EST | Flash Flood Warning | CLE | Forest, McKean, Venango, Warren | 4 hr |
| Dec 30, 1:40 PM EST | Flash Flood Warning | CLE | Crawford, Erie | 4 hr |
| Dec 30, 2:54 PM EST | Flash Flood Warning | CLE | Mercer | 4 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 6 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Beaver | 6 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Clarion | 6 hr |
| Dec 30, 10:19 PM EST | Flash Flood Warning | CLE | Crawford | 3 hr |
| Dec 31, 5:04 AM EST | Flash Flood Warning | CLE | Mercer | 3 hr |
| Dec 31, 9:45 AM EST | Flash Flood Warning | PBZ | Beaver, Butler | 6 hr |
| Dec 31, 3:30 PM EST | Flash Flood Warning | PBZ | Beaver, Butler | 7 hr |
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 | 254 |
| Tornado Warning | 14 |
| Flooding | |
| Flash Flood Warning | 179 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Butler County40
- Washington County39
- Westmoreland County38
- Allegheny County36
- Beaver County31
- Armstrong County29
- Fayette County29
- Somerset County25
- Clarion County20
- Clearfield County19
- Greene County19
- Cambria County19
- Indiana County18
- Jefferson County17
- Crawford County16
- Erie County16
- Venango County16
- Mercer County15
- Lycoming County11
- York County11
- Bradford County11
- Lawrence County11
- Union County11
- Bedford County10
- Tioga County9
- Centre County9
- Montgomery County8
- Philadelphia County8
- Snyder County8
- Cumberland County7
- Bucks County7
- Perry County7
- Warren County7
- Chester County6
- Delaware County6
- Northampton County6
- Northumberland County6
- Adams County5
- McKean County5
- Carbon County5
26 more counties
- Blair County5
- Mifflin County5
- Luzerne County5
- Clinton County4
- Sullivan County4
- Forest County4
- Elk County4
- Lehigh County4
- Huntingdon County4
- Lackawanna County4
- Lancaster County3
- Potter County3
- Wayne County3
- Monroe County3
- Schuylkill County3
- Cameron County2
- Franklin County2
- Wyoming County2
- Juniata County2
- Berks County2
- Dauphin County1
- Lebanon County1
- Montour County1
- Susquehanna County1
- Pike County1
- Fulton County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19891991
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.