Alert archive / Pennsylvania / 2026
Weather alerts in Pennsylvania, August 2026
499 weather alerts in August 2026, 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 August 2026. Tap one for its archive.
- Alerts
- 499
- Warnings
- 318
- Watches
- 29
- Advisories
- 11
- Busiest day
- August 7, 202668 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Aug 2, 1:54 AM EDT | Flood Watch | CLE | Crawford, Erie | 20 hr |
| Aug 2, 2:04 AM EDT | Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 21 hr |
| Aug 2, 2:17 AM EDT | Flood Watch | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 9 more | 24 hr |
| Aug 2, 1:17 PM EDT | Flash Flood Warning | PBZ | Beaver | 3 hr |
| Aug 2, 1:25 PM EDT | Tornado Warning | PBZ | Beaver | 35 min |
| Aug 2, 2:20 PM EDT | Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 26 hr |
| Aug 2, 2:48 PM EDT | Flash Flood Warning | PBZ | Allegheny, Butler | 3 hr |
| Aug 2, 3:37 PM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion | 3 hr |
| Aug 2, 4:18 PM EDT | Flash Flood Warning | CTP | Lycoming | 5 hr |
| Aug 2, 4:55 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 3 hr |
| Aug 2, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 26 min |
| Aug 2, 5:16 PM EDT | Flash Flood Warning | CTP | Sullivan | 6 hr |
| Aug 2, 5:19 PM EDT | Flash Flood Warning | BGM | Bradford | 5 hr |
| Aug 2, 5:27 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 48 min |
| Aug 2, 5:33 PM EDT | Flash Flood Warning | CTP | Union | 3 hr |
| Aug 2, 5:40 PM EDT | Tornado Warning | PBZ | Allegheny, Washington | 16 min |
| Aug 2, 7:23 PM EDT | Tornado Warning | CTP | Warren | 37 min |
| Aug 2, 7:29 PM EDT | Flash Flood Warning | CTP | Lycoming | 3 hr |
| Aug 2, 7:43 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 47 min |
| Aug 2, 8:25 PM EDT | River Flood Warning | CTP | Snyder, Union | 3 hr |
| Aug 2, 8:30 PM EDT | Flash Flood Warning | BGM | Susquehanna | 5 hr |
| Aug 2, 8:32 PM EDT | Special Weather Statement | CTP | Somerset | 28 min |
| Aug 2, 9:00 PM EDT | Special Weather Statement | CTP | Bedford, Blair | 45 min |
| Aug 2, 9:30 PM EDT | Special Weather Statement | CTP | Bedford, Blair | 30 min |
| Aug 2, 9:59 PM EDT | Special Weather Statement | CTP | Huntingdon | 31 min |
| Aug 2, 10:24 PM EDT | Special Weather Statement | CTP | Centre, Huntingdon, Mifflin | 36 min |
| Aug 2, 10:58 PM EDT | Special Weather Statement | CTP | Juniata, Mifflin | 32 min |
| Aug 2, 11:20 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 4 hr |
| Aug 2, 11:31 PM EDT | Special Weather Statement | CTP | Snyder | 29 min |
| Aug 2, 11:56 PM EDT | Flash Flood Warning | CTP | Bedford, Huntingdon, Juniata, Mifflin | 3 hr |
| Aug 3, 12:05 AM EDT | Flash Flood Warning | PHI | Bucks, Monroe, Northampton | 3 hr |
| Aug 3, 12:29 AM EDT | Mesoscale Discussion | SPC | Pike | 2 hr |
| Aug 3, 3:01 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery | 3 hr |
| Aug 3, 3:05 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 40 min |
| Aug 3, 4:41 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 2 hr |
| Aug 3, 6:26 AM EDT | Areal Flood Warning | PHI | Bucks, Montgomery | 94 min |
| Aug 3, 7:02 AM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
| Aug 3, 9:08 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
| Aug 3, 10:36 AM EDT | Flash Flood Warning | PHI | Bucks | 6 hr |
| Aug 3, 10:44 AM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 6 hr |
| Aug 3, 12:01 PM EDT | Areal Flood Warning | PHI | Bucks | 74 min |
| Aug 3, 1:20 PM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 5, 12:58 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 6 hr |
| Aug 5, 1:13 PM EDT | Flash Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 5 hr |
| Aug 5, 1:23 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Aug 5, 1:50 PM EDT | Heat Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 3 days |
| Aug 5, 2:17 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 4 hr |
| Aug 5, 2:50 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Aug 5, 3:33 PM EDT | Flash Flood Warning | PHI | Bucks | 86 min |
| Aug 5, 6:53 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 3 hr |
| Aug 5, 7:10 PM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Forest | 3 hr |
| Aug 5, 8:55 PM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 3 hr |
| Aug 5, 9:04 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery | 4 hr |
| Aug 5, 10:35 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
| Aug 6, 1:01 AM EDT | Heat Advisory | CTP | Lancaster, Lebanon | 19 hr |
| Aug 6, 1:39 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Bradford, Bucks and 35 more | 2 hr |
| Aug 6, 3:38 PM EDT | Special Weather Statement | CTP | Cumberland | 37 min |
| Aug 6, 3:54 PM EDT | Special Weather Statement | CTP | Franklin | 36 min |
| Aug 6, 4:03 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 27 min |
| Aug 6, 4:27 PM EDT | Flash Flood Warning | CTP | Cumberland | 110 min |
| Aug 6, 4:30 PM EDT | Special Weather Statement | CTP | Cumberland | 30 min |
| Aug 6, 6:34 PM EDT | Special Weather Statement | CTP | Lancaster | 26 min |
| Aug 6, 7:47 PM EDT | Special Weather Statement | CTP | Lancaster | 28 min |
| Aug 7, 9:28 AM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana, Jefferson | 3 hr |
| Aug 7, 10:40 AM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Clarion | 3 hr |
| Aug 7, 11:45 AM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Jefferson | 94 min |
| Aug 7, 11:50 AM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 2 hr |
| Aug 7, 12:22 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 53 min |
| Aug 7, 12:27 PM EDT | Areal Flood Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 6 hr |
| Aug 7, 12:28 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 47 min |
| Aug 7, 12:50 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Delaware and 10 more | 2 hr |
| Aug 7, 12:52 PM EDT | Special Weather Statement | CTP | Fulton | 23 min |
| Aug 7, 1:08 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry, Snyder | 67 min |
| Aug 7, 1:15 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Northumberland, Schuylkill | 45 min |
| Aug 7, 1:17 PM EDT | Special Weather Statement | CTP | Fulton | 28 min |
| Aug 7, 1:17 PM EDT | Areal Flood Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 6 hr |
| Aug 7, 1:19 PM EDT | Areal Flood Warning | PBZ | Armstrong, Clarion, Jefferson | 6 hr |
| Aug 7, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Carbon, Chester, Cumberland and 14 more | 7 hr |
| Aug 7, 1:37 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 32 min |
| Aug 7, 1:40 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton | 50 min |
| Aug 7, 1:53 PM EDT | Flash Flood Warning | CTP | Columbia, Dauphin, Northumberland, Schuylkill | 3 hr |
| Aug 7, 1:56 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 49 min |
| Aug 7, 2:01 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 44 min |
| Aug 7, 2:08 PM EDT | Flash Flood Warning | CTP | Franklin | 2 hr |
| Aug 7, 2:17 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 43 min |
| Aug 7, 2:34 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 41 min |
| Aug 7, 2:38 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 50 min |
| Aug 7, 2:42 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 7, 2:44 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 31 min |
| Aug 7, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 67 min |
| Aug 7, 2:58 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Aug 7, 2:58 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 62 min |
| Aug 7, 2:59 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 7, 3:07 PM EDT | Flash Flood Warning | BGM | Wayne | 3 hr |
| Aug 7, 3:16 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 29 min |
| Aug 7, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 44 min |
| Aug 7, 3:17 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 28 min |
| Aug 7, 3:25 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 7, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 65 min |
| Aug 7, 3:37 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 3 hr |
| Aug 7, 3:44 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Aug 7, 3:45 PM EDT | Special Weather Statement | CTP | York | 30 min |
| Aug 7, 3:49 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 41 min |
| Aug 7, 4:03 PM EDT | Flash Flood Warning | PBZ | Allegheny | 4 hr |
| Aug 7, 4:04 PM EDT | Flash Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 2 hr |
| Aug 7, 4:04 PM EDT | Mesoscale Discussion | SPC | Bucks, Delaware, Montgomery, Northampton, Philadelphia | 116 min |
| Aug 7, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 54 min |
| Aug 7, 4:24 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 4 hr |
| Aug 7, 4:29 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 89 min |
| Aug 7, 4:41 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 35 min |
| Aug 7, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 55 min |
| Aug 7, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 64 min |
| Aug 7, 5:01 PM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Northampton | 3 hr |
| Aug 7, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 44 min |
| Aug 7, 5:07 PM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 3 hr |
| Aug 7, 5:34 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Aug 7, 5:44 PM EDT | Areal Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 7, 5:45 PM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 3 hr |
| Aug 7, 5:54 PM EDT | Areal Flood Warning | BGM | Wayne | 51 min |
| Aug 7, 5:58 PM EDT | Areal Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Aug 7, 6:09 PM EDT | Special Weather Statement | CTP | Fulton | 36 min |
| Aug 7, 6:14 PM EDT | Special Weather Statement | CTP | Somerset | 31 min |
| Aug 7, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 15 min |
| Aug 7, 6:53 PM EDT | Special Weather Statement | CTP | Fulton | 37 min |
| Aug 7, 6:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 51 min |
| Aug 7, 7:08 PM EDT | Flash Flood Warning | PBZ | Allegheny | 76 min |
| Aug 7, 7:10 PM EDT | Special Weather Statement | CTP | Huntingdon | 35 min |
| Aug 7, 7:15 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 41 min |
| Aug 7, 7:19 PM EDT | Areal Flood Warning | PHI | Monroe, Northampton | 4 hr |
| Aug 7, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 40 min |
| Aug 7, 7:24 PM EDT | Special Weather Statement | CTP | Fulton | 21 min |
| Aug 7, 8:03 PM EDT | Special Weather Statement | CTP | Mifflin | 27 min |
| Aug 7, 9:01 PM EDT | Flash Flood Warning | PBZ | Forest | 2 hr |
| Aug 7, 10:46 PM EDT | Special Weather Statement | CTP | Lycoming | 29 min |
| Aug 7, 10:47 PM EDT | Special Weather Statement | CTP | Somerset | 28 min |
| Aug 8, 8:03 AM EDT | Severe Thunderstorm Warning | PBZ | Greene | 42 min |
| Aug 8, 11:41 AM EDT | Special Weather Statement | CTP | Adams, York | 34 min |
| Aug 8, 11:55 AM EDT | Mesoscale Discussion | SPC | Adams, Chester, Delaware, Lancaster, Philadelphia, York | 95 min |
| Aug 8, 12:22 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 38 min |
| Aug 8, 12:55 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 50 min |
| Aug 8, 12:59 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 31 min |
| Aug 8, 1:11 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Susquehanna, Wayne, Wyoming | 94 min |
| Aug 8, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | Chester, Delaware, Montgomery, Philadelphia | 5 hr |
| Aug 8, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 49 min |
| Aug 8, 1:44 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 46 min |
| Aug 8, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | Pike, Wayne | 6 hr |
| Aug 8, 4:43 PM EDT | Special Weather Statement | CLE | Crawford | 32 min |
| Aug 8, 5:54 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 2 hr |
| Aug 8, 6:15 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 45 min |
| Aug 8, 6:27 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 48 min |
| Aug 8, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 46 min |
| Aug 8, 7:06 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 39 min |
| Aug 8, 7:29 PM EDT | Special Weather Statement | CTP | Warren | 31 min |
| Aug 8, 7:37 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Mercer, Venango | 38 min |
| Aug 8, 7:56 PM EDT | Areal Flood Advisory | CLE | Crawford, Erie | 3 hr |
| Aug 8, 7:58 PM EDT | Special Weather Statement | CTP | Warren | 32 min |
| Aug 8, 8:24 PM EDT | Special Weather Statement | CTP | Warren | 36 min |
| Aug 8, 8:38 PM EDT | Flash Flood Warning | CLE | Crawford, Erie | 4 hr |
| Aug 8, 8:39 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 66 min |
| Aug 8, 8:43 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 47 min |
| Aug 8, 8:59 PM EDT | Special Weather Statement | CLE | Crawford | 46 min |
| Aug 8, 9:00 PM EDT | Special Weather Statement | CTP | Warren | 30 min |
| Aug 8, 9:27 PM EDT | Flash Flood Warning | CTP | Warren | 3 hr |
| Aug 8, 9:29 PM EDT | Special Weather Statement | CTP | Clearfield | 31 min |
| Aug 8, 9:41 PM EDT | Special Weather Statement | CTP | Warren | 34 min |
| Aug 9, 12:51 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 27 min |
| Aug 10, 6:52 AM EDT | Special Weather Statement | CTP | Huntingdon | 38 min |
| Aug 10, 7:27 AM EDT | Special Weather Statement | CTP | Franklin | 33 min |
| Aug 10, 7:41 AM EDT | Special Weather Statement | CTP | Cumberland, Perry | 34 min |
| Aug 10, 8:08 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Perry, York | 52 min |
| Aug 10, 8:41 AM EDT | Mesoscale Discussion | SPC | Armstrong, Butler, Clarion, Crawford, Elk, Forest and 5 more | 2 hr |
| Aug 10, 8:51 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, York | 39 min |
| Aug 10, 9:29 AM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 4 more | 91 min |
| Aug 10, 9:29 AM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 29 more | 6 hr |
| Aug 10, 9:34 AM EDT | Special Weather Statement | CLE | Crawford, Erie | 41 min |
| Aug 10, 10:07 AM EDT | Flood Watch | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 41 hr |
| Aug 10, 10:09 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 51 min |
| Aug 10, 10:13 AM EDT | Special Weather Statement | CTP | Warren | 32 min |
| Aug 10, 10:34 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 41 min |
| Aug 10, 10:56 AM EDT | Severe Thunderstorm Warning | PBZ | Washington | 55 min |
| Aug 10, 11:14 AM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 46 min |
| Aug 10, 11:35 AM EDT | Flash Flood Warning | CTP | McKean | 3 hr |
| Aug 10, 11:39 AM EDT | Special Weather Statement | CTP | Elk | 36 min |
| Aug 10, 11:44 AM EDT | Mesoscale Discussion | SPC | Bradford, Cameron, Elk, McKean, Potter, Tioga | 2 hr |
| Aug 10, 11:53 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 52 min |
| Aug 10, 11:58 AM EDT | Flash Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 3 hr |
| Aug 10, 12:06 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 54 min |
| Aug 10, 12:24 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bradford, Columbia, Cumberland, Dauphin, Franklin and 16 more | 6 hr |
| Aug 10, 12:32 PM EDT | Special Weather Statement | CTP | Centre, Clinton | 58 min |
| Aug 10, 12:42 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Aug 10, 12:43 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton | 47 min |
| Aug 10, 12:48 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 57 min |
| Aug 10, 12:53 PM EDT | Special Weather Statement | CTP | Tioga | 52 min |
| Aug 10, 1:03 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 21 min |
| Aug 10, 1:13 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 47 min |
| Aug 10, 1:20 PM EDT | Special Weather Statement | CTP | Clinton | 25 min |
| Aug 10, 1:30 PM EDT | Special Weather Statement | CTP | Lycoming | 30 min |
| Aug 10, 1:35 PM EDT | Special Weather Statement | CTP | Franklin | 25 min |
| Aug 10, 1:38 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Bradford, Bucks and 37 more | 2 hr |
| Aug 10, 1:52 PM EDT | Special Weather Statement | BGM | Bradford | 23 min |
| Aug 10, 1:55 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Sullivan | 50 min |
| Aug 10, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 43 min |
| Aug 10, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 39 min |
| Aug 10, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 6 hr |
| Aug 10, 2:17 PM EDT | Special Weather Statement | BGM | Bradford | 28 min |
| Aug 10, 2:21 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 24 min |
| Aug 10, 2:32 PM EDT | Special Weather Statement | BGM | Wyoming | 28 min |
| Aug 10, 2:43 PM EDT | Special Weather Statement | BGM | Susquehanna | 32 min |
| Aug 10, 2:43 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 47 min |
| Aug 10, 2:45 PM EDT | Severe Thunderstorm Warning | CTP | York | 45 min |
| Aug 10, 2:50 PM EDT | Special Weather Statement | BGM | Luzerne | 25 min |
| Aug 10, 2:54 PM EDT | Flash Flood Warning | CTP | Franklin | 95 min |
| Aug 10, 3:10 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 25 min |
| Aug 10, 3:13 PM EDT | Special Weather Statement | BGM | Wayne | 32 min |
| Aug 10, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 39 min |
| Aug 10, 3:26 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Susquehanna, Wayne | 34 min |
| Aug 10, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | York | 48 min |
| Aug 10, 3:50 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 40 min |
| Aug 10, 3:58 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 32 min |
| Aug 10, 4:00 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 30 min |
| Aug 10, 4:02 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 43 min |
| Aug 10, 4:19 PM EDT | Mesoscale Discussion | SPC | Bucks, Delaware, Philadelphia | 116 min |
| Aug 10, 4:22 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 41 min |
| Aug 10, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 20 min |
| Aug 10, 11:29 PM EDT | Special Weather Statement | CTP | Somerset | 61 min |
| Aug 11, 12:23 AM EDT | Special Weather Statement | CTP | Somerset | 52 min |
| Aug 11, 1:03 AM EDT | Severe Thunderstorm Warning | CTP | Somerset | 42 min |
| Aug 11, 1:14 AM EDT | Flash Flood Warning | CTP | Somerset | 7 hr |
| Aug 11, 1:47 AM EDT | Flash Flood Warning | PBZ | Fayette | 3 hr |
| Aug 11, 2:38 AM EDT | Flood Watch | CTP | Somerset | 18 hr |
| Aug 11, 2:56 AM EDT | Flash Flood Warning | PBZ | Fayette | 106 min |
| Aug 11, 3:08 AM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Aug 11, 3:23 AM EDT | Flash Flood Warning | CTP | Somerset | 5 hr |
| Aug 11, 3:42 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 48 min |
| Aug 11, 4:13 AM EDT | Special Weather Statement | CLE | Crawford | 47 min |
| Aug 11, 4:28 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 36 min |
| Aug 11, 4:45 AM EDT | Areal Flood Warning | PBZ | Fayette, Westmoreland | 4 hr |
| Aug 11, 4:50 AM EDT | Special Weather Statement | CTP | Cameron, Centre, Clinton | 25 min |
| Aug 11, 4:53 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 40 min |
| Aug 11, 5:06 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 32 min |
| Aug 11, 8:27 AM EDT | River Flood Warning | CTP | Somerset | 3 hr |
| Aug 11, 8:29 AM EDT | Areal Flood Warning | CTP | Somerset | 3 hr |
| Aug 11, 9:37 AM EDT | River Flood Warning | PBZ | Fayette | 3 hr |
| Aug 11, 2:40 PM EDT | Mesoscale Discussion | SPC | Berks, Bradford, Bucks, Carbon, Chester, Columbia and 17 more | 2 hr |
| Aug 11, 4:48 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 43 min |
| Aug 11, 5:19 PM EDT | Special Weather Statement | BGM | Wyoming | 26 min |
| Aug 11, 5:44 PM EDT | Special Weather Statement | BGM | Luzerne | 31 min |
| Aug 11, 6:10 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 23 min |
| Aug 11, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 40 min |
| Aug 11, 7:25 PM EDT | Areal Flood Advisory | CLE | Crawford | 2 hr |
| Aug 12, 1:10 PM EDT | Mesoscale Discussion | SPC | Bradford, McKean, Potter, Sullivan, Susquehanna, Tioga and 2 more | 2 hr |
| Aug 12, 5:08 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 37 min |
| Aug 12, 5:14 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 31 min |
| Aug 12, 5:37 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 23 min |
| Aug 12, 5:42 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Aug 12, 6:11 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 34 min |
| Aug 12, 8:07 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Susquehanna, Wayne, Wyoming | 53 min |
| Aug 12, 8:11 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 27 min |
| Aug 12, 9:18 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 27 min |
| Aug 12, 9:32 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 43 min |
| Aug 12, 9:38 PM EDT | Special Weather Statement | CTP | Schuylkill | 52 min |
| Aug 12, 9:45 PM EDT | Special Weather Statement | BGM | Susquehanna | 30 min |
| Aug 15, 1:49 AM EDT | Dense Fog Advisory | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 7 hr |
| Aug 15, 1:55 AM EDT | Dense Fog Advisory | PBZ | Allegheny, Beaver, Fayette, Greene, Indiana, Washington and 1 more | 8 hr |
| Aug 15, 9:57 AM EDT | Flood Watch | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 38 hr |
| Aug 15, 12:54 PM EDT | Flood Watch | CTP | Bedford, Blair, Cambria, Franklin, Fulton, Huntingdon and 1 more | 33 hr |
| Aug 16, 11:56 AM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Butler, Greene, Lawrence, Washington | 64 min |
| Aug 16, 1:05 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 9 hr |
| Aug 16, 2:28 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 2 hr |
| Aug 16, 2:30 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Washington | 45 min |
| Aug 16, 3:00 PM EDT | Tornado Warning | PBZ | Beaver | 18 min |
| Aug 16, 3:05 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Lawrence, Washington | 40 min |
| Aug 16, 3:22 PM EDT | Tornado Warning | PBZ | Beaver, Butler | 23 min |
| Aug 16, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 50 min |
| Aug 16, 3:28 PM EDT | Mesoscale Discussion | SPC | Bedford, Fulton, Somerset | 2 hr |
| Aug 16, 3:41 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Westmoreland | 49 min |
| Aug 16, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 40 min |
| Aug 16, 4:15 PM EDT | Flash Flood Warning | PBZ | Washington | 5 hr |
| Aug 16, 4:15 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Indiana, Westmoreland | 45 min |
| Aug 16, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield, Somerset | 73 min |
| Aug 16, 4:34 PM EDT | Tornado Warning | PBZ | Indiana, Westmoreland | 26 min |
| Aug 16, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 8 more | 6 hr |
| Aug 16, 4:40 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 20 min |
| Aug 16, 4:44 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 16 min |
| Aug 16, 5:18 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Somerset | 57 min |
| Aug 16, 5:22 PM EDT | Areal Flood Advisory | CLE | Crawford | 4 hr |
| Aug 16, 5:45 PM EDT | Special Weather Statement | CTP | Clearfield | 45 min |
| Aug 16, 6:08 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 52 min |
| Aug 16, 6:39 PM EDT | Special Weather Statement | CTP | Huntingdon | 36 min |
| Aug 16, 6:39 PM EDT | Flash Flood Warning | PBZ | Clarion, Venango | 5 hr |
| Aug 16, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, Perry | 46 min |
| Aug 16, 7:00 PM EDT | Mesoscale Discussion | SPC | Adams, Cumberland, York | 60 min |
| Aug 16, 7:17 PM EDT | Flash Flood Warning | PBZ | Clarion, Jefferson | 3 hr |
| Aug 16, 7:28 PM EDT | Special Weather Statement | CTP | Adams | 47 min |
| Aug 16, 11:21 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 16, 11:38 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 17, 1:57 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 4 hr |
| Aug 17, 3:28 PM EDT | Special Weather Statement | CTP | Montour, Northumberland | 47 min |
| Aug 17, 4:20 PM EDT | Special Weather Statement | CTP | Schuylkill | 55 min |
| Aug 17, 4:35 PM EDT | Special Weather Statement | CTP | Lancaster | 40 min |
| Aug 17, 4:43 PM EDT | Special Weather Statement | PHI | Berks | 47 min |
| Aug 17, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 31 min |
| Aug 17, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 36 min |
| Aug 17, 5:17 PM EDT | Special Weather Statement | CTP | Lancaster | 28 min |
| Aug 17, 5:30 PM EDT | Special Weather Statement | PHI | Berks | 30 min |
| Aug 17, 6:03 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 42 min |
| Aug 17, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 32 min |
| Aug 18, 4:52 AM EDT | Dense Fog Advisory | CTP | Elk, McKean, Warren | 4 hr |
| Aug 19, 12:00 PM EDT | Special Weather Statement | CLE | Crawford | 45 min |
| Aug 19, 12:36 PM EDT | Flood Watch | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 25 hr |
| Aug 19, 2:08 PM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 31 hr |
| Aug 20, 8:25 AM EDT | Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more | 10 hr |
| Aug 20, 9:40 AM EDT | Flash Flood Warning | PBZ | Greene, Washington | 3 hr |
| Aug 20, 9:59 AM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Jefferson | 3 hr |
| Aug 20, 10:05 AM EDT | Flash Flood Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 3 hr |
| Aug 20, 11:10 AM EDT | Flash Flood Warning | PBZ | Armstrong, Fayette, Indiana, Westmoreland | 3 hr |
| Aug 20, 11:29 AM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana, Jefferson, Westmoreland | 3 hr |
| Aug 20, 11:40 AM EDT | Flash Flood Warning | CTP | Cambria, Centre, Clearfield | 3 hr |
| Aug 20, 12:43 PM EDT | Areal Flood Warning | PBZ | Greene, Washington | 3 hr |
| Aug 20, 12:45 PM EDT | Flash Flood Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 3 hr |
| Aug 20, 12:51 PM EDT | Areal Flood Warning | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 3 hr |
| Aug 20, 1:51 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Fayette, Indiana, Westmoreland | 3 hr |
| Aug 20, 1:53 PM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more | 2 hr |
| Aug 20, 2:12 PM EDT | Areal Flood Warning | PBZ | Armstrong, Indiana, Jefferson, Westmoreland | 3 hr |
| Aug 20, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Chester, Delaware, Lancaster and 6 more | 7 hr |
| Aug 20, 2:33 PM EDT | Areal Flood Warning | CTP | Blair, Cambria, Centre, Clearfield | 3 hr |
| Aug 20, 2:55 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 50 min |
| Aug 20, 2:58 PM EDT | Tornado Watch | SPC | Bucks, Chester, Delaware, Montgomery, Philadelphia | 7 hr |
| Aug 20, 3:17 PM EDT | Areal Flood Warning | CTP | Blair, Cambria, Centre, Clearfield, Clinton, Huntingdon | 3 hr |
| Aug 20, 3:39 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 51 min |
| Aug 20, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 78 min |
| Aug 20, 4:26 PM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Montgomery, Philadelphia | 2 hr |
| Aug 20, 4:29 PM EDT | Tornado Warning | CTP | Lancaster | 31 min |
| Aug 20, 4:41 PM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Aug 20, 4:47 PM EDT | Tornado Warning | CTP | Lancaster | 28 min |
| Aug 20, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 40 min |
| Aug 20, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 46 min |
| Aug 20, 5:22 PM EDT | Tornado Warning | PHI | Chester, Delaware | 38 min |
| Aug 20, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Aug 20, 5:39 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 20, 5:54 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 3 hr |
| Aug 20, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 47 min |
| Aug 20, 6:26 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 4 hr |
| Aug 20, 9:45 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Aug 21, 12:33 AM EDT | Dense Fog Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 19 more | 9 hr |
| Aug 21, 12:43 AM EDT | Areal Flood Warning | PHI | Philadelphia | 2 hr |
| Aug 21, 1:04 AM EDT | Dense Fog Advisory | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 9 hr |
| Aug 21, 1:50 AM EDT | Dense Fog Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 7 hr |
| Aug 22, 3:49 AM EDT | Beach Hazards Statement | CLE | Erie | 66 hr |
| Aug 22, 11:38 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 16 more | 3 hr |
| Aug 22, 12:21 PM EDT | Flood Watch | CLE | Crawford, Erie | 7 hr |
| Aug 22, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 14 more | 8 hr |
| Aug 22, 3:50 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 115 min |
| Aug 22, 4:06 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 39 min |
| Aug 22, 4:11 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 49 min |
| Aug 22, 4:31 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Clarion, Mercer, Venango | 44 min |
| Aug 22, 4:33 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 42 min |
| Aug 22, 5:11 PM EDT | Special Weather Statement | CTP | Clearfield | 49 min |
| Aug 22, 5:12 PM EDT | Flood Watch | CTP | Blair, Cambria, Centre, Clearfield | 6 hr |
| Aug 22, 5:15 PM EDT | Special Weather Statement | CTP | Bedford | 30 min |
| Aug 22, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler | 41 min |
| Aug 22, 5:20 PM EDT | Special Weather Statement | CTP | Cambria | 40 min |
| Aug 22, 5:28 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Butler | 3 hr |
| Aug 22, 5:37 PM EDT | Special Weather Statement | CTP | Warren | 38 min |
| Aug 22, 5:43 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 47 min |
| Aug 22, 5:46 PM EDT | Special Weather Statement | CTP | Bedford | 44 min |
| Aug 22, 5:53 PM EDT | Special Weather Statement | CTP | Somerset | 22 min |
| Aug 22, 5:55 PM EDT | Flash Flood Warning | CTP | Cambria, Clearfield | 4 hr |
| Aug 22, 5:56 PM EDT | Special Weather Statement | CTP | Elk | 34 min |
| Aug 22, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 43 min |
| Aug 22, 6:12 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 48 min |
| Aug 22, 6:37 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 38 min |
| Aug 22, 6:44 PM EDT | Flash Flood Warning | CTP | Cambria, Somerset | 3 hr |
| Aug 22, 6:48 PM EDT | Flash Flood Warning | CTP | Bedford, Somerset | 3 hr |
| Aug 22, 6:54 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 36 min |
| Aug 22, 6:59 PM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Aug 22, 7:00 PM EDT | Mesoscale Discussion | SPC | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 11 more | 90 min |
| Aug 22, 7:01 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Indiana, Jefferson | 34 min |
| Aug 22, 7:02 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 43 min |
| Aug 22, 7:08 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 52 min |
| Aug 22, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield | 28 min |
| Aug 22, 7:36 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon, Mifflin | 39 min |
| Aug 22, 7:36 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 39 min |
| Aug 22, 7:42 PM EDT | Flash Flood Warning | CTP | Clearfield | 3 hr |
| Aug 22, 7:52 PM EDT | Flash Flood Warning | CTP | Blair, Cambria | 3 hr |
| Aug 22, 7:55 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 50 min |
| Aug 22, 7:58 PM EDT | Tornado Warning | CTP | Centre, Clearfield | 17 min |
| Aug 22, 8:11 PM EDT | Tornado Warning | CTP | Centre, Clearfield | 19 min |
| Aug 22, 8:29 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 31 min |
| Aug 22, 8:29 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 46 min |
| Aug 22, 9:10 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 35 min |
| Aug 22, 9:10 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 65 min |
| Aug 22, 10:02 PM EDT | Special Weather Statement | CTP | Adams | 28 min |
| Aug 22, 10:39 PM EDT | Special Weather Statement | CTP | York | 51 min |
| Aug 23, 3:32 AM EDT | Flash Flood Warning | PHI | Delaware | 3 hr |
| Aug 23, 3:49 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Aug 23, 6:04 AM EDT | Special Weather Statement | CLE | Erie | 26 min |
| Aug 23, 12:03 PM EDT | Mesoscale Discussion | SPC | Bradford, Lackawanna, Luzerne, Lycoming, Pike, Potter and 5 more | 2 hr |
| Aug 23, 4:11 PM EDT | Special Weather Statement | CTP | York | 34 min |
| Aug 23, 5:06 PM EDT | Special Weather Statement | CTP | Elk | 24 min |
| Aug 23, 6:31 PM EDT | Special Weather Statement | CLE | Erie | 44 min |
| Aug 23, 8:02 PM EDT | Mesoscale Discussion | SPC | Crawford | 88 min |
| Aug 26, 2:31 PM EDT | Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 35 hr |
| Aug 27, 2:55 AM EDT | Flood Watch | CTP | Lancaster, Lebanon, Schuylkill | 22 hr |
| Aug 27, 10:57 AM EDT | Mesoscale Discussion | SPC | Bucks, Delaware, Montgomery, Northampton, Philadelphia | 2 hr |
| Aug 27, 11:38 AM EDT | Flash Flood Warning | PHI | Delaware | 4 hr |
| Aug 27, 12:51 PM EDT | Mesoscale Discussion | SPC | Bradford, Lackawanna, Luzerne, Sullivan, Susquehanna, Wayne and 1 more | 114 min |
| Aug 27, 12:51 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 9 hr |
| Aug 27, 1:17 PM EDT | Flash Flood Warning | PHI | Bucks | 7 hr |
| Aug 27, 1:52 PM EDT | Special Weather Statement | CTP | Cumberland | 38 min |
| Aug 27, 1:52 PM EDT | Mesoscale Discussion | SPC | Adams, Cumberland, Dauphin, Franklin, Fulton, Juniata and 2 more | 113 min |
| Aug 27, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 7 hr |
| Aug 27, 2:18 PM EDT | Special Weather Statement | CTP | Clinton | 27 min |
| Aug 27, 2:29 PM EDT | Mesoscale Discussion | SPC | Delaware, Philadelphia | 2 hr |
| Aug 27, 2:38 PM EDT | Flash Flood Warning | PHI | Delaware, Philadelphia | 4 hr |
| Aug 27, 2:46 PM EDT | Special Weather Statement | CTP | Clinton | 44 min |
| Aug 27, 3:06 PM EDT | Special Weather Statement | CTP | Lycoming | 39 min |
| Aug 27, 3:17 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Centre, Clinton, Columbia, Cumberland, Dauphin and 16 more | 7 hr |
| Aug 27, 3:26 PM EDT | Areal Flood Warning | PHI | Delaware | 5 hr |
| Aug 27, 3:34 PM EDT | Special Weather Statement | CTP | Elk | 26 min |
| Aug 27, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 39 min |
| Aug 27, 4:09 PM EDT | Special Weather Statement | CTP | Lancaster | 36 min |
| Aug 27, 4:19 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 56 min |
| Aug 27, 4:24 PM EDT | Special Weather Statement | CTP | Sullivan | 51 min |
| Aug 27, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 49 min |
| Aug 27, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 47 min |
| Aug 27, 4:52 PM EDT | Flash Flood Warning | PHI | Northampton | 3 hr |
| Aug 27, 5:02 PM EDT | Special Weather Statement | CTP | Lycoming | 28 min |
| Aug 27, 5:03 PM EDT | Special Weather Statement | CTP | Dauphin | 42 min |
| Aug 27, 5:08 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Aug 27, 5:15 PM EDT | Special Weather Statement | CTP | Berks | 15 min |
| Aug 27, 5:26 PM EDT | Special Weather Statement | CTP | Sullivan | 34 min |
| Aug 27, 5:30 PM EDT | Special Weather Statement | BGM | Wyoming | 30 min |
| Aug 27, 5:32 PM EDT | Special Weather Statement | CTP | Clinton | 28 min |
| Aug 27, 5:42 PM EDT | Special Weather Statement | CTP | Sullivan | 33 min |
| Aug 27, 5:48 PM EDT | Special Weather Statement | CTP | Lycoming | 42 min |
| Aug 27, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton | 49 min |
| Aug 27, 6:04 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Aug 27, 6:11 PM EDT | Special Weather Statement | CTP | Clinton | 34 min |
| Aug 27, 6:13 PM EDT | Special Weather Statement | CTP | Lebanon | 47 min |
| Aug 27, 6:17 PM EDT | Special Weather Statement | CTP | Sullivan | 43 min |
| Aug 27, 6:23 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 4 hr |
| Aug 27, 6:32 PM EDT | Special Weather Statement | CTP | Snyder | 43 min |
| Aug 27, 6:35 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Sullivan | 40 min |
| Aug 27, 6:41 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
| Aug 27, 6:42 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 63 min |
| Aug 27, 6:50 PM EDT | Special Weather Statement | CTP | Lebanon | 40 min |
| Aug 27, 6:52 PM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon | 3 hr |
| Aug 27, 6:54 PM EDT | Special Weather Statement | CTP | Cumberland, Perry | 51 min |
| Aug 27, 6:56 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 64 min |
| Aug 27, 6:56 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 21 min |
| Aug 27, 7:00 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
| Aug 27, 7:06 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Wayne | 84 min |
| Aug 27, 7:10 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry | 50 min |
| Aug 27, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wayne | 61 min |
| Aug 27, 7:14 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 46 min |
| Aug 27, 7:22 PM EDT | Flash Flood Warning | CTP | Columbia, Lycoming, Sullivan | 3 hr |
| Aug 27, 7:22 PM EDT | Special Weather Statement | CTP | Huntingdon | 23 min |
| Aug 27, 7:22 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 38 min |
| Aug 27, 7:26 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Columbia, Cumberland, Dauphin, Lancaster and 8 more | 94 min |
| Aug 27, 7:46 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 30 min |
| Aug 27, 7:47 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Schuylkill, Snyder | 28 min |
| Aug 27, 7:49 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 41 min |
| Aug 27, 7:51 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne | 117 min |
| Aug 27, 7:51 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 39 min |
| Aug 27, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Huntingdon, Juniata, Mifflin, Perry | 38 min |
| Aug 27, 8:05 PM EDT | Flash Flood Warning | CTP | Huntingdon, Juniata, Perry | 3 hr |
| Aug 27, 8:06 PM EDT | Flash Flood Warning | BGM | Luzerne | 3 hr |
| Aug 27, 8:09 PM EDT | Areal Flood Warning | PHI | Bucks, Montgomery | 5 hr |
| Aug 27, 8:16 PM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Aug 27, 8:16 PM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
| Aug 27, 8:17 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry | 43 min |
| Aug 27, 8:23 PM EDT | Flash Flood Warning | BGM | Luzerne | 3 hr |
| Aug 27, 8:24 PM EDT | Tornado Warning | CTP | Lancaster | 21 min |
| Aug 27, 8:26 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour | 64 min |
| Aug 27, 8:29 PM EDT | Special Weather Statement | BGM | Lackawanna | 31 min |
| Aug 27, 8:29 PM EDT | Flash Flood Warning | CTP | Columbia, Montour | 3 hr |
| Aug 27, 8:40 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 50 min |
| Aug 27, 8:42 PM EDT | Flash Flood Warning | CTP | Dauphin, Lebanon | 3 hr |
| Aug 27, 8:52 PM EDT | Special Weather Statement | BGM | Luzerne | 38 min |
| Aug 27, 9:01 PM EDT | Special Weather Statement | BGM | Luzerne | 29 min |
| Aug 27, 9:09 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 51 min |
| Aug 27, 9:09 PM EDT | Areal Flood Warning | PHI | Bucks, Chester, Montgomery | 4 hr |
| Aug 27, 9:14 PM EDT | Special Weather Statement | BGM | Luzerne | 31 min |
| Aug 27, 9:21 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 27, 9:32 PM EDT | River Flood Warning | PHI | Bucks | 6 hr |
| Aug 27, 9:41 PM EDT | Flash Flood Warning | CTP | Dauphin, Lebanon | 106 min |
| Aug 27, 9:58 PM EDT | Flash Flood Warning | CTP | Lancaster | 90 min |
| Aug 27, 10:08 PM EDT | Areal Flood Warning | CTP | Lancaster, Lebanon | 67 min |
| Aug 27, 10:18 PM EDT | Areal Flood Warning | CTP | Lycoming, Sullivan | 4 hr |
| Aug 27, 10:22 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 38 min |
| Aug 27, 10:24 PM EDT | Areal Flood Warning | CTP | Columbia, Lycoming, Sullivan | 4 hr |
| Aug 27, 10:36 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Montgomery | 3 hr |
| Aug 27, 11:11 PM EDT | Areal Flood Warning | CTP | Columbia, Montour | 3 hr |
| Aug 27, 11:14 PM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon | 6 hr |
| Aug 28, 2:41 AM EDT | River Flood Warning | CTP | Lancaster | 14 hr |
| Aug 30, 7:33 PM EDT | Special Weather Statement | CTP | Lancaster | 27 min |
| Aug 30, 9:56 PM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Aug 30, 10:04 PM EDT | Flash Flood Warning | PHI | Chester | 4 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 | 157 |
| Tornado Warning | 12 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 31 |
| Special Weather Statement | 109 |
| Flooding | |
| Areal Flood Warning | 29 |
| Flash Flood Warning | 114 |
| River Flood Warning | 6 |
| Flood Watch | 15 |
| Areal Flood Advisory | 3 |
| Heat | |
| Heat Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Beach Hazards Statement | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County54
- Montgomery County47
- Delaware County46
- Lancaster County45
- Philadelphia County41
- Chester County40
- Allegheny County38
- Westmoreland County37
- York County35
- Washington County33
- Fayette County31
- Berks County31
- Armstrong County30
- Somerset County29
- Northampton County29
- Cumberland County28
- Huntingdon County27
- Greene County26
- Franklin County26
- Beaver County25
- Butler County25
- Centre County25
- Adams County25
- Clearfield County24
- Sullivan County24
- Crawford County23
- Clarion County23
- Blair County23
- Lycoming County23
- Fulton County23
- Cambria County22
- Warren County22
- Monroe County22
- Lebanon County22
- Perry County22
- Wayne County22
- Indiana County21
- Jefferson County21
- Bedford County21
- Dauphin County21
27 more counties
- Luzerne County21
- Lehigh County20
- Susquehanna County20
- Elk County19
- Clinton County18
- Bradford County18
- Columbia County18
- Schuylkill County18
- Erie County17
- Juniata County17
- Mifflin County16
- Lackawanna County16
- McKean County15
- Pike County15
- Lawrence County14
- Montour County14
- Wyoming County14
- Mercer County13
- Snyder County13
- Carbon County13
- Venango County12
- Northumberland County12
- Forest County11
- Union County11
- Cameron County8
- Potter County8
- Tioga County8
Nearby
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.