Alert archive / Pennsylvania / 2026
Weather alerts in Pennsylvania, September 2026
343 weather alerts in September 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 September 2026. Tap one for its archive.
- Alerts
- 343
- Warnings
- 245
- Watches
- 18
- Advisories
- 13
- Busiest day
- September 3, 2026142 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 |
|---|---|---|---|---|
| Sep 1, 2:30 AM EDT | Heat Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 18 hr |
| Sep 1, 12:59 PM EDT | Heat Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more | 55 hr |
| Sep 1, 3:13 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Columbia, Dauphin and 16 more | 2 hr |
| Sep 1, 4:26 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 49 min |
| Sep 1, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bradford, Bucks, Cameron, Carbon, Centre and 36 more | 7 hr |
| Sep 1, 4:51 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 39 min |
| Sep 1, 5:04 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 41 min |
| Sep 1, 5:10 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland | 50 min |
| Sep 1, 5:13 PM EDT | Tornado Warning | CTP | Potter, Tioga | 32 min |
| Sep 1, 5:19 PM EDT | Tornado Warning | CTP | Lycoming, Sullivan, Tioga | 26 min |
| Sep 1, 5:37 PM EDT | Special Weather Statement | CLE | Crawford | 38 min |
| Sep 1, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Potter, Tioga | 48 min |
| Sep 1, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland | 48 min |
| Sep 1, 5:45 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 45 min |
| Sep 1, 5:46 PM EDT | Tornado Warning | CTP | Columbia, Montour, Northumberland | 29 min |
| Sep 1, 5:49 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 26 min |
| Sep 1, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 40 min |
| Sep 1, 5:53 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 67 min |
| Sep 1, 5:56 PM EDT | Flash Flood Warning | CTP | Lycoming | 3 hr |
| Sep 1, 5:57 PM EDT | Special Weather Statement | CLE | Crawford | 63 min |
| Sep 1, 6:00 PM EDT | Mesoscale Discussion | SPC | Armstrong, Bedford, Blair, Butler, Cambria, Clarion and 13 more | 90 min |
| Sep 1, 6:01 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Sep 1, 6:08 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 52 min |
| Sep 1, 6:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 51 min |
| Sep 1, 6:14 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| Sep 1, 6:15 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 45 min |
| Sep 1, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 39 min |
| Sep 1, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 46 min |
| Sep 1, 6:31 PM EDT | Tornado Warning | BGM | Bradford | 29 min |
| Sep 1, 6:32 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Columbia, Dauphin and 12 more | 88 min |
| Sep 1, 6:33 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 57 min |
| Sep 1, 6:38 PM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
| Sep 1, 6:40 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 38 min |
| Sep 1, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 73 min |
| Sep 1, 6:42 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 48 min |
| Sep 1, 6:47 PM EDT | Special Weather Statement | CLE | Warren | 28 min |
| Sep 1, 6:49 PM EDT | Special Weather Statement | CLE | Crawford | 26 min |
| Sep 1, 6:56 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 49 min |
| Sep 1, 6:58 PM EDT | Tornado Warning | BGM | Bradford | 32 min |
| Sep 1, 6:58 PM EDT | Special Weather Statement | CTP | Columbia, Montour | 47 min |
| Sep 1, 6:58 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 34 min |
| Sep 1, 7:07 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 38 min |
| Sep 1, 7:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh, Montgomery | 47 min |
| Sep 1, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 61 min |
| Sep 1, 7:14 PM EDT | Flash Flood Warning | CTP | Schuylkill | 3 hr |
| Sep 1, 7:21 PM EDT | Flash Flood Warning | BGM | Luzerne | 79 min |
| Sep 1, 7:27 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 48 min |
| Sep 1, 7:27 PM EDT | Tornado Warning | CTP | Sullivan | 33 min |
| Sep 1, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 29 min |
| Sep 1, 7:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware | 47 min |
| Sep 1, 7:46 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 44 min |
| Sep 1, 7:59 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 16 min |
| Sep 1, 8:17 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 58 min |
| Sep 1, 8:44 PM EDT | Flash Flood Warning | PHI | Chester, Delaware | 3 hr |
| Sep 1, 9:19 PM EDT | Flash Flood Warning | PHI | Bucks | 116 min |
| Sep 1, 10:12 PM EDT | Special Weather Statement | CTP | York | 33 min |
| Sep 2, 3:35 AM EDT | Heat Advisory | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 6 more | 40 hr |
| Sep 2, 3:53 AM EDT | Heat Advisory | PHI | Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia | 40 hr |
| Sep 2, 6:04 AM EDT | Mesoscale Discussion | SPC | Crawford, Erie, Forest, Mercer, Venango, Warren | 116 min |
| Sep 2, 6:33 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 57 min |
| Sep 2, 7:03 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 57 min |
| Sep 2, 7:06 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 54 min |
| Sep 2, 7:06 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 69 min |
| Sep 2, 7:12 AM EDT | Areal Flood Advisory | CLE | Erie | 3 hr |
| Sep 2, 7:29 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 61 min |
| Sep 2, 7:49 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 56 min |
| Sep 2, 7:51 AM EDT | Tornado Warning | CTP | Warren | 24 min |
| Sep 2, 7:52 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 53 min |
| Sep 2, 8:02 AM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Sep 2, 8:03 AM EDT | Tornado Warning | CLE | Crawford | 42 min |
| Sep 2, 8:10 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Warren | 80 min |
| Sep 2, 8:15 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 60 min |
| Sep 2, 8:36 AM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 54 min |
| Sep 2, 8:38 AM EDT | Tornado Warning | CTP | Elk, McKean | 37 min |
| Sep 2, 8:51 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 39 min |
| Sep 2, 8:51 AM EDT | Mesoscale Discussion | SPC | Butler, Cameron, Clarion, Clearfield, Crawford, Elk and 9 more | 84 min |
| Sep 2, 9:03 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 42 min |
| Sep 2, 9:05 AM EDT | Special Weather Statement | CLE | Erie | 55 min |
| Sep 2, 9:12 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Clarion, Mercer, Venango | 48 min |
| Sep 2, 9:23 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 13 more | 4 hr |
| Sep 2, 9:25 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk | 50 min |
| Sep 2, 9:27 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 48 min |
| Sep 2, 9:41 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield | 49 min |
| Sep 2, 9:49 AM EDT | Areal Flood Advisory | CLE | Erie | 106 min |
| Sep 2, 9:59 AM EDT | Special Weather Statement | CLE | Crawford | 61 min |
| Sep 2, 10:06 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Mifflin | 39 min |
| Sep 2, 10:13 AM EDT | Areal Flood Advisory | CLE | Crawford, Erie | 82 min |
| Sep 2, 10:20 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon, Juniata, Mifflin | 40 min |
| Sep 2, 10:33 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Huntingdon | 42 min |
| Sep 2, 10:39 AM EDT | Special Weather Statement | CTP | Snyder, Union | 51 min |
| Sep 2, 10:48 AM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Juniata, Mifflin, Perry | 42 min |
| Sep 2, 11:02 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Cumberland, Franklin, Fulton and 5 more | 43 min |
| Sep 2, 11:09 AM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 51 min |
| Sep 2, 11:09 AM EDT | Mesoscale Discussion | SPC | Adams, Cumberland, Franklin, Fulton, Perry, York | 66 min |
| Sep 2, 11:24 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Perry, York | 51 min |
| Sep 2, 11:39 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Bedford, Cambria, Cumberland, Franklin, Fulton and 2 more | 51 min |
| Sep 2, 11:49 AM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, Schuylkill, York | 56 min |
| Sep 2, 12:12 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon, York | 33 min |
| Sep 2, 12:25 PM EDT | Special Weather Statement | CTP | Fulton | 50 min |
| Sep 2, 12:40 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 65 min |
| Sep 2, 12:43 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 32 min |
| Sep 2, 12:46 PM EDT | Flood Watch | BGM | Bradford, Susquehanna, Wayne | 14 hr |
| Sep 2, 3:58 PM EDT | Mesoscale Discussion | SPC | Armstrong, Butler, Cameron, Centre, Clarion, Clearfield and 11 more | 92 min |
| Sep 2, 4:17 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 43 min |
| Sep 2, 4:41 PM EDT | Tornado Watch | SPC | Bradford | 6 hr |
| Sep 2, 4:54 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 34 min |
| Sep 2, 4:56 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 26 more | 9 hr |
| Sep 2, 5:06 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 39 min |
| Sep 2, 5:24 PM EDT | Special Weather Statement | CTP | Bedford | 36 min |
| Sep 2, 5:39 PM EDT | Special Weather Statement | CLE | Crawford | 51 min |
| Sep 2, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 48 min |
| Sep 2, 5:53 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 37 min |
| Sep 2, 5:53 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 26 min |
| Sep 2, 6:11 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Venango | 26 min |
| Sep 2, 6:34 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest | 26 min |
| Sep 2, 6:37 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 38 min |
| Sep 2, 6:45 PM EDT | Special Weather Statement | CLE | Crawford | 45 min |
| Sep 2, 7:14 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 46 min |
| Sep 2, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 43 min |
| Sep 2, 7:49 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 41 min |
| Sep 2, 7:56 PM EDT | Tornado Warning | CTP | Tioga | 34 min |
| Sep 2, 8:12 PM EDT | Tornado Warning | CTP | Centre, Clinton | 33 min |
| Sep 2, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 38 min |
| Sep 2, 8:29 PM EDT | Tornado Warning | CTP | Tioga | 35 min |
| Sep 2, 8:39 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 51 min |
| Sep 2, 8:43 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 47 min |
| Sep 2, 8:44 PM EDT | Tornado Warning | CTP | Centre, Clinton | 31 min |
| Sep 2, 8:48 PM EDT | Mesoscale Discussion | SPC | Bradford, Cameron, Centre, Clarion, Clearfield, Clinton and 19 more | 87 min |
| Sep 2, 8:50 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Tioga | 55 min |
| Sep 2, 8:53 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 67 min |
| Sep 2, 8:58 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter | 47 min |
| Sep 2, 9:03 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 57 min |
| Sep 2, 9:09 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 51 min |
| Sep 2, 9:24 PM EDT | Flash Flood Warning | CTP | Centre, Clinton, Lycoming | 3 hr |
| Sep 2, 9:29 PM EDT | Special Weather Statement | CLE | Erie | 46 min |
| Sep 2, 9:29 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 16 min |
| Sep 2, 9:39 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 22 min |
| Sep 2, 9:42 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 78 min |
| Sep 2, 9:50 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Union | 40 min |
| Sep 2, 9:50 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 40 min |
| Sep 2, 9:59 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wayne, Wyoming | 46 min |
| Sep 2, 10:12 PM EDT | Flash Flood Warning | CTP | Centre, Clinton, Lycoming, Union | 3 hr |
| Sep 2, 10:19 PM EDT | Areal Flood Advisory | CLE | Erie | 79 min |
| Sep 2, 10:26 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 64 min |
| Sep 2, 10:29 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 30 min |
| Sep 2, 10:35 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 40 min |
| Sep 2, 10:51 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Snyder, Union | 39 min |
| Sep 2, 11:08 PM EDT | Special Weather Statement | CTP | Clinton | 37 min |
| Sep 2, 11:09 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 66 min |
| Sep 2, 11:13 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Mifflin, Northumberland, Perry, Snyder | 47 min |
| Sep 2, 11:15 PM EDT | Tornado Warning | CTP | Elk, McKean, Warren | 15 min |
| Sep 2, 11:19 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 26 min |
| Sep 2, 11:26 PM EDT | Flash Flood Warning | CTP | Northumberland, Snyder, Union | 4 hr |
| Sep 2, 11:26 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Northumberland, Schuylkill, Snyder, Union | 49 min |
| Sep 2, 11:38 PM EDT | Flash Flood Warning | CLE | Erie | 4 hr |
| Sep 2, 11:40 PM EDT | River Flood Warning | CTP | Centre, Clinton | 16 hr |
| Sep 2, 11:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Clinton, Elk, Lycoming, McKean and 2 more | 41 min |
| Sep 2, 11:51 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 54 min |
| Sep 3, 12:03 AM EDT | Flash Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 4 hr |
| Sep 3, 12:10 AM EDT | Special Weather Statement | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 50 min |
| Sep 3, 12:17 AM EDT | Special Weather Statement | CLE | Crawford | 28 min |
| Sep 3, 12:23 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 3 more | 61 min |
| Sep 3, 12:27 AM EDT | Areal Flood Warning | CTP | Centre, Clinton, Lycoming | 6 hr |
| Sep 3, 12:28 AM EDT | Special Weather Statement | CTP | McKean, Warren | 47 min |
| Sep 3, 12:39 AM EDT | Special Weather Statement | CLE | Crawford | 51 min |
| Sep 3, 12:50 AM EDT | Special Weather Statement | CTP | Lancaster, York | 70 min |
| Sep 3, 1:09 AM EDT | Flash Flood Warning | CTP | Clinton, Lycoming | 4 hr |
| Sep 3, 1:11 AM EDT | Special Weather Statement | CTP | Cameron, Elk, McKean | 49 min |
| Sep 3, 1:14 AM EDT | Areal Flood Warning | CTP | Centre, Clinton, Lycoming, Union | 6 hr |
| Sep 3, 1:26 AM EDT | River Flood Warning | CTP | Snyder, Union | 15 hr |
| Sep 3, 1:32 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 43 min |
| Sep 3, 1:34 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 41 min |
| Sep 3, 1:34 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 3, 1:36 AM EDT | Special Weather Statement | CLE | Crawford | 39 min |
| Sep 3, 1:42 AM EDT | Flash Flood Warning | CLE | Crawford, Erie | 4 hr |
| Sep 3, 2:01 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 44 min |
| Sep 3, 2:07 AM EDT | Mesoscale Discussion | SPC | Armstrong, Blair, Butler, Cambria, Cameron, Centre and 22 more | 113 min |
| Sep 3, 2:12 AM EDT | Flash Flood Warning | CTP | Centre, Clearfield, Huntingdon, Juniata, Mifflin, Perry | 4 hr |
| Sep 3, 2:16 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 45 min |
| Sep 3, 2:33 AM EDT | Special Weather Statement | CLE | Crawford | 27 min |
| Sep 3, 2:42 AM EDT | Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 20 hr |
| Sep 3, 2:56 AM EDT | Flash Flood Warning | CTP | McKean, Warren | 3 hr |
| Sep 3, 3:05 AM EDT | Flash Flood Warning | PBZ | Clarion, Forest, Jefferson | 3 hr |
| Sep 3, 3:23 AM EDT | Areal Flood Warning | CTP | Northumberland, Snyder, Union | 3 hr |
| Sep 3, 3:28 AM EDT | Areal Flood Warning | CLE | Erie | 8 hr |
| Sep 3, 3:53 AM EDT | Areal Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 3 hr |
| Sep 3, 4:11 AM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon | 4 hr |
| Sep 3, 5:03 AM EDT | Areal Flood Warning | CTP | Clinton, Lycoming | 117 min |
| Sep 3, 5:15 AM EDT | Special Weather Statement | CLE | Crawford | 45 min |
| Sep 3, 5:26 AM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 3, 5:31 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 59 min |
| Sep 3, 5:46 AM EDT | Areal Flood Warning | CTP | Centre, Clearfield, Huntingdon, Juniata, Mifflin, Perry | 2 hr |
| Sep 3, 5:51 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 39 min |
| Sep 3, 5:56 AM EDT | Areal Flood Warning | CTP | McKean, Warren | 3 hr |
| Sep 3, 6:15 AM EDT | Special Weather Statement | CTP | Warren | 45 min |
| Sep 3, 6:17 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 58 min |
| Sep 3, 6:29 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Lawrence, Mercer and 1 more | 46 min |
| Sep 3, 6:55 AM EDT | Special Weather Statement | CTP | Cameron, Clearfield, Elk | 65 min |
| Sep 3, 7:20 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 40 min |
| Sep 3, 8:09 AM EDT | River Flood Warning | PHI | Chester | 3 hr |
| Sep 3, 8:12 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 48 min |
| Sep 3, 8:37 AM EDT | Special Weather Statement | CTP | Somerset | 23 min |
| Sep 3, 8:55 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 50 min |
| Sep 3, 9:34 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton, Somerset | 41 min |
| Sep 3, 11:15 AM EDT | Flood Watch | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 11 hr |
| Sep 3, 12:01 PM EDT | Flood Watch | CLE | Crawford, Erie | 10 hr |
| Sep 3, 1:44 PM EDT | Mesoscale Discussion | SPC | Butler, Crawford, Erie, Lawrence, Mercer, Venango | 3 hr |
| Sep 3, 2:54 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 51 min |
| Sep 3, 3:03 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more | 9 hr |
| Sep 3, 3:34 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 56 min |
| Sep 3, 3:40 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 50 min |
| Sep 3, 4:02 PM EDT | Tornado Warning | PBZ | Mercer | 28 min |
| Sep 3, 4:16 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 26 more | 119 min |
| Sep 3, 4:20 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 20 min |
| Sep 3, 4:23 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Clarion, Forest, Lawrence, Mercer, Venango | 67 min |
| Sep 3, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 49 min |
| Sep 3, 4:33 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 42 min |
| Sep 3, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 6 hr |
| Sep 3, 4:47 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 43 min |
| Sep 3, 4:52 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 38 min |
| Sep 3, 4:53 PM EDT | Areal Flood Advisory | CLE | Crawford | 5 hr |
| Sep 3, 4:55 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 35 min |
| Sep 3, 5:00 PM EDT | Tornado Warning | CLE | Crawford, Erie | 13 min |
| Sep 3, 5:07 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Lawrence, Washington | 53 min |
| Sep 3, 5:12 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson, Lawrence, Venango | 48 min |
| Sep 3, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 41 min |
| Sep 3, 5:25 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 50 min |
| Sep 3, 5:28 PM EDT | Flash Flood Warning | PBZ | Beaver, Lawrence | 5 hr |
| Sep 3, 5:29 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 46 min |
| Sep 3, 5:43 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 6 hr |
| Sep 3, 5:47 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more | 58 min |
| Sep 3, 5:57 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 48 min |
| Sep 3, 6:02 PM EDT | Flash Flood Warning | PBZ | Mercer | 3 hr |
| Sep 3, 6:09 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 21 min |
| Sep 3, 6:11 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland | 6 hr |
| Sep 3, 6:13 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 32 min |
| Sep 3, 6:13 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Cambria, Fayette, Indiana, Somerset and 2 more | 92 min |
| Sep 3, 6:18 PM EDT | Special Weather Statement | BGM | Bradford | 42 min |
| Sep 3, 6:19 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Blair, Cambria, Cumberland, Fayette and 8 more | 116 min |
| Sep 3, 6:21 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 24 min |
| Sep 3, 6:34 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Fayette, Indiana, Westmoreland | 41 min |
| Sep 3, 6:36 PM EDT | Tornado Warning | PBZ | Westmoreland | 24 min |
| Sep 3, 6:38 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 6 hr |
| Sep 3, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 24 min |
| Sep 3, 6:46 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 44 min |
| Sep 3, 6:51 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer, Venango | 54 min |
| Sep 3, 6:53 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 30 min |
| Sep 3, 6:53 PM EDT | Tornado Warning | PBZ | Fayette, Westmoreland | 37 min |
| Sep 3, 6:56 PM EDT | Tornado Warning | PBZ | Westmoreland | 23 min |
| Sep 3, 6:57 PM EDT | Flash Flood Warning | PBZ | Fayette, Indiana, Westmoreland | 6 hr |
| Sep 3, 7:01 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 44 min |
| Sep 3, 7:08 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Indiana, Westmoreland | 37 min |
| Sep 3, 7:16 PM EDT | Special Weather Statement | BGM | Wyoming | 44 min |
| Sep 3, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 25 min |
| Sep 3, 7:21 PM EDT | Flash Flood Warning | CTP | Cambria, Somerset | 3 hr |
| Sep 3, 7:29 PM EDT | Flash Flood Warning | PBZ | Lawrence, Mercer | 3 hr |
| Sep 3, 7:34 PM EDT | Special Weather Statement | BGM | Susquehanna | 41 min |
| Sep 3, 7:39 PM EDT | Tornado Warning | CTP | Bedford, Cambria, Somerset | 36 min |
| Sep 3, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 48 min |
| Sep 3, 7:47 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne, Wyoming | 43 min |
| Sep 3, 7:51 PM EDT | Flash Flood Warning | PBZ | Beaver | 2 hr |
| Sep 3, 7:54 PM EDT | Tornado Warning | CTP | Bedford, Blair, Cambria | 36 min |
| Sep 3, 7:54 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 51 min |
| Sep 3, 8:19 PM EDT | Mesoscale Discussion | SPC | Bedford, Franklin, Fulton | 56 min |
| Sep 3, 8:25 PM EDT | Special Weather Statement | BGM | Luzerne | 50 min |
| Sep 3, 8:33 PM EDT | Special Weather Statement | CTP | Fulton | 27 min |
| Sep 3, 8:38 PM EDT | River Flood Advisory | PBZ | Allegheny | 7 hr |
| Sep 3, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | Chester | 5 hr |
| Sep 3, 8:39 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 51 min |
| Sep 3, 8:44 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 46 min |
| Sep 3, 8:57 PM EDT | Special Weather Statement | CTP | Somerset | 33 min |
| Sep 3, 9:06 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 24 min |
| Sep 3, 9:08 PM EDT | Special Weather Statement | CTP | Franklin | 37 min |
| Sep 3, 9:17 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 31 min |
| Sep 3, 9:24 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 66 min |
| Sep 4, 12:34 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 41 min |
| Sep 4, 2:40 AM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 3 hr |
| Sep 4, 9:35 AM EDT | Flood Watch | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 7 hr |
| Sep 4, 12:05 PM EDT | Flood Watch | CTP | Bedford, Blair, Cambria, Somerset | 4 hr |
| Sep 9, 2:06 PM EDT | Mesoscale Discussion | SPC | Armstrong, Beaver, Butler, Cameron, Clarion, Crawford and 9 more | 84 min |
| Sep 9, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 15 more | 8 hr |
| Sep 9, 4:42 PM EDT | Mesoscale Discussion | SPC | Armstrong, Beaver, Butler, Cameron, Clarion, Crawford and 9 more | 93 min |
| Sep 9, 4:48 PM EDT | Special Weather Statement | CLE | Erie | 57 min |
| Sep 9, 4:54 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 29 min |
| Sep 9, 5:07 PM EDT | Areal Flood Advisory | CLE | Erie | 3 hr |
| Sep 9, 5:41 PM EDT | Special Weather Statement | CLE | Crawford | 64 min |
| Sep 9, 5:52 PM EDT | Special Weather Statement | CTP | Warren | 23 min |
| Sep 9, 6:15 PM EDT | Special Weather Statement | CTP | Warren | 30 min |
| Sep 9, 7:16 PM EDT | Tornado Warning | CTP | McKean | 29 min |
| Sep 9, 7:21 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 39 min |
| Sep 9, 7:24 PM EDT | Tornado Warning | PBZ | Beaver | 14 min |
| Sep 9, 7:33 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 42 min |
| Sep 9, 8:08 PM EDT | Tornado Warning | CTP | Potter | 37 min |
| Sep 9, 8:10 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 35 min |
| Sep 9, 8:21 PM EDT | Special Weather Statement | BGM | Bradford | 39 min |
| Sep 9, 8:59 PM EDT | Tornado Warning | CTP | Cameron, McKean, Potter | 31 min |
| Sep 9, 10:09 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Butler, Washington | 109 min |
| Sep 11, 1:26 PM EDT | Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 40 hr |
| Sep 12, 2:21 AM EDT | Flood Watch | PHI | Bucks, Delaware, Montgomery, Philadelphia | 34 hr |
| Sep 12, 10:23 AM EDT | Flood Watch | CTP | Cambria, Cameron, Clearfield, Elk, McKean, Somerset and 1 more | 18 hr |
| Sep 12, 2:22 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 5 more | 113 min |
| Sep 12, 3:01 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 59 min |
| Sep 12, 3:24 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 3 hr |
| Sep 12, 3:55 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 3 hr |
| Sep 12, 4:20 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Jefferson | 55 min |
| Sep 12, 4:34 PM EDT | Special Weather Statement | CTP | Clearfield | 41 min |
| Sep 12, 4:48 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 72 min |
| Sep 12, 4:55 PM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana | 3 hr |
| Sep 12, 5:10 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Sep 12, 6:14 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington | 2 hr |
| Sep 12, 6:26 PM EDT | Areal Flood Warning | PBZ | Allegheny, Washington | 3 hr |
| Sep 12, 7:00 PM EDT | Areal Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 3 hr |
| Sep 12, 7:48 PM EDT | Areal Flood Warning | PBZ | Armstrong, Indiana, Jefferson | 3 hr |
| Sep 12, 8:27 PM EDT | Areal Flood Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 3 hr |
| Sep 12, 9:19 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 116 min |
| Sep 12, 10:42 PM EDT | Flash Flood Warning | CTP | Elk | 4 hr |
| Sep 13, 2:28 AM EDT | Flash Flood Warning | PBZ | Clarion | 3 hr |
| Sep 13, 3:56 AM EDT | Beach Hazards Statement | CLE | Erie | 30 hr |
| Sep 13, 8:06 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 13, 3:59 PM EDT | Mesoscale Discussion | SPC | Beaver, Butler, Cameron, Clarion, Crawford, Elk and 9 more | 2 hr |
| Sep 13, 4:13 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 47 min |
| Sep 13, 4:34 PM EDT | Special Weather Statement | CLE | Crawford | 26 min |
| Sep 13, 4:42 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 33 min |
| Sep 13, 5:17 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 30 min |
| Sep 13, 5:26 PM EDT | Flash Flood Warning | PBZ | Mercer | 3 hr |
| Sep 13, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 34 min |
| Sep 13, 6:18 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 42 min |
| Sep 13, 6:26 PM EDT | Special Weather Statement | CTP | Cameron, Potter | 49 min |
| Sep 13, 6:36 PM EDT | Special Weather Statement | CTP | Elk | 39 min |
| Sep 13, 7:07 PM EDT | Special Weather Statement | CTP | Clearfield | 38 min |
| Sep 13, 7:14 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 46 min |
| Sep 13, 7:21 PM EDT | Special Weather Statement | BGM | Bradford | 39 min |
| Sep 13, 7:59 PM EDT | Special Weather Statement | CTP | Centre | 16 min |
| Sep 16, 6:43 AM EDT | Areal Flood Advisory | CLE | Crawford, Erie | 3 hr |
| Sep 17, 6:03 PM EDT | Special Weather Statement | CTP | Northumberland, Schuylkill | 57 min |
| Sep 17, 9:16 PM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Sep 20, 2:48 AM EDT | Flash Flood Warning | PBZ | Washington | 2 hr |
| Sep 20, 3:42 AM EDT | Beach Hazards Statement | CLE | Erie | 4 days |
| Sep 20, 10:37 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 20, 12:00 PM EDT | Flood Watch | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 56 hr |
| Sep 20, 1:17 PM EDT | Areal Flood Warning | PBZ | Allegheny, Washington | 5 hr |
| Sep 20, 3:22 PM EDT | Areal Flood Warning | PBZ | Washington | 5 hr |
| Sep 22, 4:14 PM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 3 days |
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 | 159 |
| Tornado Warning | 25 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 47 |
| Flooding | |
| Areal Flood Warning | 15 |
| Flash Flood Warning | 43 |
| River Flood Warning | 3 |
| Flood Watch | 10 |
| Areal Flood Advisory | 7 |
| River Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 4 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| Beach Hazards Statement | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Crawford County51
- Washington County35
- Erie County35
- Allegheny County34
- Butler County33
- Westmoreland County32
- Mercer County32
- Venango County32
- Elk County30
- Warren County30
- Clinton County29
- Beaver County28
- Lycoming County27
- McKean County27
- Clarion County27
- Armstrong County26
- Centre County26
- Lawrence County25
- Cameron County25
- Forest County25
- Clearfield County24
- Potter County23
- Jefferson County23
- Tioga County22
- Indiana County22
- Cambria County21
- Somerset County21
- Fayette County20
- Bedford County19
- Fulton County19
- Dauphin County18
- Union County17
- Huntingdon County17
- Northumberland County16
- Mifflin County16
- Chester County15
- Lancaster County15
- Lebanon County15
- Snyder County15
- Perry County15
27 more counties
- Blair County15
- Schuylkill County14
- York County14
- Franklin County14
- Delaware County13
- Bradford County13
- Cumberland County13
- Juniata County13
- Bucks County12
- Greene County12
- Columbia County12
- Sullivan County12
- Berks County11
- Montgomery County10
- Philadelphia County10
- Luzerne County10
- Montour County10
- Wyoming County8
- Adams County8
- Lehigh County7
- Northampton County7
- Susquehanna County7
- Carbon County6
- Monroe County5
- Lackawanna County5
- Wayne County5
- Pike County3
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.