Alert archive / Pennsylvania / 2021
Weather alerts in Pennsylvania, September 2021
376 weather alerts in September 2021, 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 2021. Tap one for its archive.
- Alerts
- 376
- Warnings
- 166
- Watches
- 15
- Advisories
- 47
- Busiest day
- September 1, 202189 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, 4:01 AM EDT | Mesoscale Discussion | SPC | Chester, Delaware, Lancaster, York | 119 min |
| Sep 1, 5:05 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Beaver, Fayette, Washington, Westmoreland | 104 min |
| Sep 1, 6:19 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 116 min |
| Sep 1, 6:23 AM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more | 5 hr |
| Sep 1, 6:49 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 86 min |
| Sep 1, 7:16 AM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana, Westmoreland | 6 hr |
| Sep 1, 7:21 AM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 6 hr |
| Sep 1, 7:50 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 1, 8:54 AM EDT | Flash Flood Warning | CTP | Bedford, Blair, Cambria, Centre, Clearfield, Fulton and 3 more | 8 hr |
| Sep 1, 9:27 AM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Fayette, Greene, Indiana, Washington and 1 more | 4 hr |
| Sep 1, 9:37 AM EDT | Flash Flood Warning | CTP | Cambria, Clearfield, Somerset | 6 hr |
| Sep 1, 9:38 AM EDT | River Flood Warning | BGM | Pike, Wayne | 30 hr |
| Sep 1, 9:45 AM EDT | Areal Flood Advisory | CTP | Adams, Columbia, Cumberland, Dauphin, Franklin, Juniata and 10 more | 2 hr |
| Sep 1, 10:02 AM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne | 60 min |
| Sep 1, 10:26 AM EDT | Areal Flood Advisory | PBZ | Washington | 109 min |
| Sep 1, 11:02 AM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne | 13 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Snyder, Union | 17 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Cambria | 17 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Huntingdon | 23 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Juniata, Mifflin | 20 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Bedford, Huntingdon | 30 hr |
| Sep 1, 11:04 AM EDT | River Flood Warning | CTP | Dauphin | 55 hr |
| Sep 1, 11:23 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more | 52 min |
| Sep 1, 11:24 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Indiana, Westmoreland | 16 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Fayette | 39 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Fayette, Washington, Westmoreland | 28 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Allegheny, Westmoreland | 40 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 33 hr |
| Sep 1, 11:40 AM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 6 hr |
| Sep 1, 12:04 PM EDT | Flash Flood Warning | CTP | Adams, Columbia, Cumberland, Dauphin, Franklin, Juniata and 10 more | 6 hr |
| Sep 1, 12:07 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Sep 1, 12:40 PM EDT | Tornado Watch | SPC | Adams, Berks, Bucks, Chester, Delaware, Lancaster and 5 more | 9 hr |
| Sep 1, 1:00 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 11 hr |
| Sep 1, 1:09 PM EDT | Flash Flood Warning | CTP | Cambria | 5 hr |
| Sep 1, 1:15 PM EDT | Areal Flood Warning | PBZ | Fayette | 2 hr |
| Sep 1, 1:16 PM EDT | Areal Flood Warning | PBZ | Indiana, Westmoreland | 2 hr |
| Sep 1, 1:24 PM EDT | Areal Flood Warning | PBZ | Fayette, Indiana, Westmoreland | 2 hr |
| Sep 1, 1:29 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 6 hr |
| Sep 1, 2:07 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 53 min |
| Sep 1, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | York | 77 min |
| Sep 1, 2:53 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 9 hr |
| Sep 1, 3:05 PM EDT | Tornado Warning | CTP | York | 23 min |
| Sep 1, 3:09 PM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 1, 3:25 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 35 min |
| Sep 1, 3:34 PM EDT | Areal Flood Warning | CTP | Cambria, Clearfield, Somerset | 6 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery | 36 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 41 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Philadelphia | 39 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Berks | 24 hr |
| Sep 1, 4:00 PM EDT | Flash Flood Warning | BGM | Pike, Wayne | 10 hr |
| Sep 1, 4:02 PM EDT | River Flood Warning | PHI | Monroe | 24 hr |
| Sep 1, 4:04 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe, Northampton | 24 hr |
| Sep 1, 4:10 PM EDT | River Flood Warning | PHI | Monroe | 19 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 7 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 25 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 24 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Carbon | 15 hr |
| Sep 1, 4:13 PM EDT | Tornado Warning | PHI | Chester | 32 min |
| Sep 1, 4:20 PM EDT | River Flood Warning | PHI | Montgomery | 22 hr |
| Sep 1, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 39 min |
| Sep 1, 4:21 PM EDT | River Flood Warning | PHI | Bucks | 29 hr |
| Sep 1, 4:24 PM EDT | Flash Flood Warning | CTP | Adams, York | 4 hr |
| Sep 1, 4:28 PM EDT | Mesoscale Discussion | SPC | Delaware, Philadelphia | 2 hr |
| Sep 1, 4:40 PM EDT | Areal Flood Warning | CTP | Bedford, Blair, Cambria, Centre, Clearfield, Franklin and 4 more | 6 hr |
| Sep 1, 4:42 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 6 hr |
| Sep 1, 4:44 PM EDT | River Flood Warning | BGM | Lackawanna | 13 hr |
| Sep 1, 5:07 PM EDT | River Flood Warning | PHI | Chester | 17 hr |
| Sep 1, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Sep 1, 5:15 PM EDT | Tornado Warning | PHI | Delaware, Montgomery, Philadelphia | 30 min |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 9 hr |
| Sep 1, 5:34 PM EDT | Tornado Warning | PHI | Bucks, Montgomery, Philadelphia | 26 min |
| Sep 1, 5:41 PM EDT | Areal Flood Warning | CTP | Adams, Centre, Columbia, Cumberland, Dauphin, Franklin and 15 more | 14 hr |
| Sep 1, 5:42 PM EDT | Flash Flood Warning | PHI | Bucks | 10 hr |
| Sep 1, 5:57 PM EDT | Tornado Warning | PHI | Bucks | 33 min |
| Sep 1, 6:08 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 6 hr |
| Sep 1, 6:20 PM EDT | Tornado Warning | PHI | Bucks | 40 min |
| Sep 1, 6:22 PM EDT | Tornado Warning | PHI | Philadelphia | 23 min |
| Sep 1, 6:34 PM EDT | Mesoscale Discussion | SPC | Philadelphia | 56 min |
| Sep 1, 6:38 PM EDT | River Flood Warning | PHI | Chester, Delaware | 26 hr |
| Sep 1, 6:42 PM EDT | Tornado Warning | PHI | Bucks, Philadelphia | 33 min |
| Sep 1, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 61 min |
| Sep 1, 7:04 PM EDT | Tornado Warning | PHI | Bucks | 26 min |
| Sep 1, 7:05 PM EDT | Flash Flood Warning | PHI | Bucks | 8 hr |
| Sep 1, 7:22 PM EDT | Tornado Warning | PHI | Bucks | 11 min |
| Sep 1, 7:23 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 14 hr |
| Sep 1, 7:31 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Sep 1, 7:53 PM EDT | River Flood Warning | PHI | Delaware | 13 hr |
| Sep 1, 8:08 PM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Susquehanna, Wyoming | 3 hr |
| Sep 1, 8:29 PM EDT | River Flood Warning | PHI | Lehigh | 10 hr |
| Sep 1, 9:47 PM EDT | River Flood Warning | PHI | Berks | 18 hr |
| Sep 1, 10:24 PM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 4 hr |
| Sep 1, 10:29 PM EDT | River Flood Warning | PHI | Bucks | 49 hr |
| Sep 1, 10:32 PM EDT | River Flood Warning | PHI | Bucks | 31 hr |
| Sep 1, 10:42 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Montgomery | 12 hr |
| Sep 1, 10:47 PM EDT | Areal Flood Warning | PHI | Bucks, Carbon, Lehigh, Northampton | 23 hr |
| Sep 1, 10:52 PM EDT | Areal Flood Warning | PHI | Bucks | 12 hr |
| Sep 1, 11:38 PM EDT | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 10 hr |
| Sep 1, 11:46 PM EDT | Flash Flood Warning | BGM | Lackawanna, Pike, Wayne | 74 min |
| Sep 2, 12:01 AM EDT | Areal Flood Warning | PHI | Monroe, Northampton | 40 hr |
| Sep 2, 2:23 AM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 9 hr |
| Sep 2, 2:29 AM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 5 hr |
| Sep 2, 2:41 AM EDT | Areal Flood Warning | PHI | Bucks | 14 hr |
| Sep 2, 3:52 AM EDT | Areal Flood Warning | PHI | Bucks | 8 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Bucks | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Northampton | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Bucks | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Bucks | 33 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Bucks | 34 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Monroe, Northampton | 5 hr |
| Sep 2, 5:02 AM EDT | River Flood Warning | PHI | Lehigh | 11 hr |
| Sep 2, 6:05 AM EDT | Coastal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 6 hr |
| Sep 2, 6:44 PM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 7 hr |
| Sep 5, 7:10 AM EDT | Beach Hazards Statement | CLE | Erie | 5 hr |
| Sep 5, 3:55 PM EDT | Beach Hazards Statement | CLE | Erie | 24 hr |
| Sep 7, 2:33 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 37 hr |
| Sep 7, 3:28 PM EDT | Flash Flood Watch | BGM | Lackawanna, Luzerne, Pike, Wayne | 35 hr |
| Sep 7, 3:45 PM EDT | Beach Hazards Statement | CLE | Erie | 36 hr |
| Sep 8, 3:07 PM EDT | Special Weather Statement | CTP | Lycoming | 23 min |
| Sep 8, 3:12 PM EDT | Special Weather Statement | CTP | Centre | 33 min |
| Sep 8, 3:16 PM EDT | Special Weather Statement | BGM | Bradford | 44 min |
| Sep 8, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 33 min |
| Sep 8, 3:29 PM EDT | Special Weather Statement | CTP | Blair | 31 min |
| Sep 8, 3:37 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 38 min |
| Sep 8, 3:59 PM EDT | Special Weather Statement | CTP | Huntingdon | 31 min |
| Sep 8, 4:05 PM EDT | Special Weather Statement | BGM | Susquehanna | 25 min |
| Sep 8, 4:15 PM EDT | Mesoscale Discussion | SPC | Berks, Carbon, Chester, Columbia, Dauphin, Lackawanna and 12 more | 2 hr |
| Sep 8, 4:29 PM EDT | Special Weather Statement | CTP | Mifflin | 46 min |
| Sep 8, 4:36 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 39 min |
| Sep 8, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Northumberland, Snyder | 49 min |
| Sep 8, 5:57 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 37 min |
| Sep 8, 6:21 PM EDT | Flash Flood Watch | CTP | Adams, Lancaster, York | 7 hr |
| Sep 8, 6:36 PM EDT | Special Weather Statement | CTP | Columbia | 39 min |
| Sep 8, 6:37 PM EDT | Special Weather Statement | BGM | Luzerne | 38 min |
| Sep 8, 7:12 PM EDT | Special Weather Statement | BGM | Lackawanna, Wayne | 48 min |
| Sep 8, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 43 min |
| Sep 8, 7:18 PM EDT | Special Weather Statement | CTP | Carbon | 27 min |
| Sep 8, 7:23 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 25 min |
| Sep 8, 7:43 PM EDT | Special Weather Statement | CTP | Schuylkill | 17 min |
| Sep 8, 7:54 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Chester, Lehigh, Monroe, Montgomery and 2 more | 4 hr |
| Sep 8, 7:59 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 61 min |
| Sep 8, 8:04 PM EDT | Special Weather Statement | BGM | Pike | 26 min |
| Sep 8, 8:13 PM EDT | Special Weather Statement | CTP | Franklin | 17 min |
| Sep 8, 8:29 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Lancaster, York | 4 hr |
| Sep 8, 8:43 PM EDT | Special Weather Statement | CTP | Adams | 32 min |
| Sep 8, 8:47 PM EDT | Special Weather Statement | PHI | Northampton | 28 min |
| Sep 8, 8:55 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 50 min |
| Sep 8, 8:56 PM EDT | Special Weather Statement | BGM | Pike | 49 min |
| Sep 8, 9:12 PM EDT | Special Weather Statement | PHI | Lehigh | 48 min |
| Sep 8, 9:16 PM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 3 hr |
| Sep 8, 9:16 PM EDT | Special Weather Statement | PHI | Northampton | 29 min |
| Sep 8, 9:25 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Lehigh, Monroe, Montgomery, Northampton and 1 more | 95 min |
| Sep 8, 9:38 PM EDT | Special Weather Statement | PHI | Berks | 52 min |
| Sep 8, 9:39 PM EDT | Special Weather Statement | CTP | York | 21 min |
| Sep 8, 9:46 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 44 min |
| Sep 8, 9:48 PM EDT | Areal Flood Advisory | CTP | Adams, York | 57 min |
| Sep 8, 9:48 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 7 hr |
| Sep 8, 9:59 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Sep 8, 10:10 PM EDT | Flash Flood Warning | CTP | Adams, York | 95 min |
| Sep 8, 10:11 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 49 min |
| Sep 8, 10:22 PM EDT | Areal Flood Advisory | CTP | Lancaster, Lebanon | 68 min |
| Sep 8, 10:23 PM EDT | Tornado Warning | PHI | Berks | 22 min |
| Sep 8, 10:27 PM EDT | Special Weather Statement | PHI | Northampton | 33 min |
| Sep 8, 10:42 PM EDT | Flash Flood Warning | PHI | Northampton | 6 hr |
| Sep 8, 10:42 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 2 more | 2 hr |
| Sep 8, 10:47 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 3 hr |
| Sep 8, 10:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Montgomery, Northampton | 58 min |
| Sep 8, 10:56 PM EDT | Special Weather Statement | PHI | Northampton | 34 min |
| Sep 8, 11:24 PM EDT | Areal Flood Advisory | CTP | Lebanon | 96 min |
| Sep 8, 11:27 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 48 min |
| Sep 8, 11:35 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery | 40 min |
| Sep 8, 11:45 PM EDT | Areal Flood Advisory | CTP | Adams, York | 75 min |
| Sep 9, 12:08 AM EDT | Special Weather Statement | PHI | Bucks, Delaware, Montgomery, Philadelphia | 37 min |
| Sep 9, 4:26 AM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Sep 9, 4:28 AM EDT | Areal Flood Warning | PHI | Northampton | 4 hr |
| Sep 9, 6:28 AM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 7 more | 2 hr |
| Sep 9, 2:05 PM EDT | Special Weather Statement | PBZ | Fayette | 25 min |
| Sep 9, 5:00 PM EDT | Special Weather Statement | CTP | Franklin | 30 min |
| Sep 9, 5:15 PM EDT | Special Weather Statement | CTP | Lebanon | 45 min |
| Sep 9, 5:33 PM EDT | Special Weather Statement | CTP | Adams | 27 min |
| Sep 9, 5:42 PM EDT | Special Weather Statement | BGM | Luzerne | 48 min |
| Sep 9, 5:57 PM EDT | Special Weather Statement | CTP | Adams | 33 min |
| Sep 9, 6:20 PM EDT | Special Weather Statement | BGM | Luzerne | 40 min |
| Sep 12, 10:25 PM EDT | Severe Thunderstorm Watch | SPC | Erie | 4 hr |
| Sep 12, 11:23 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 37 min |
| Sep 13, 12:24 AM EDT | Special Weather Statement | CTP | McKean | 36 min |
| Sep 13, 12:26 AM EDT | Mesoscale Discussion | SPC | Susquehanna | 94 min |
| Sep 13, 12:53 AM EDT | Special Weather Statement | CTP | McKean, Potter, Tioga | 52 min |
| Sep 13, 4:11 PM EDT | Mesoscale Discussion | SPC | Cameron, Clinton, Elk, Erie, Forest, McKean and 2 more | 2 hr |
| Sep 13, 4:39 PM EDT | Special Weather Statement | CLE | Erie | 36 min |
| Sep 13, 5:05 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 25 min |
| Sep 13, 5:15 PM EDT | Special Weather Statement | CTP | Warren | 30 min |
| Sep 13, 5:16 PM EDT | Special Weather Statement | CLE | Crawford | 44 min |
| Sep 13, 5:18 PM EDT | Special Weather Statement | PBZ | Venango | 27 min |
| Sep 13, 5:33 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Venango | 27 min |
| Sep 13, 5:39 PM EDT | Special Weather Statement | PBZ | Forest | 36 min |
| Sep 13, 5:45 PM EDT | Special Weather Statement | CTP | Potter | 30 min |
| Sep 13, 5:53 PM EDT | Severe Thunderstorm Watch | SPC | Cameron, Centre, Clarion, Clearfield, Clinton, Columbia and 14 more | 3 hr |
| Sep 13, 5:59 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 46 min |
| Sep 13, 6:14 PM EDT | Special Weather Statement | CTP | Potter | 31 min |
| Sep 13, 6:21 PM EDT | Special Weather Statement | CTP | Elk | 24 min |
| Sep 13, 6:29 PM EDT | Special Weather Statement | PBZ | Elk | 31 min |
| Sep 13, 6:36 PM EDT | Special Weather Statement | CTP | Lycoming | 24 min |
| Sep 13, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 47 min |
| Sep 13, 6:44 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 31 min |
| Sep 13, 6:48 PM EDT | Special Weather Statement | PBZ | Venango | 27 min |
| Sep 13, 7:07 PM EDT | Mesoscale Discussion | SPC | Carbon, Centre, Clearfield, Columbia, Jefferson, Luzerne and 5 more | 113 min |
| Sep 13, 7:18 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 57 min |
| Sep 13, 7:35 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 55 min |
| Sep 13, 7:44 PM EDT | Severe Thunderstorm Watch | SPC | Bucks, Carbon, Lehigh, Luzerne, Monroe, Northampton | 4 hr |
| Sep 13, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Schuylkill | 48 min |
| Sep 13, 8:16 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 44 min |
| Sep 13, 8:21 PM EDT | Areal Flood Advisory | BGM | Luzerne | 2 hr |
| Sep 13, 8:28 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 22 min |
| Sep 13, 8:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 49 min |
| Sep 13, 8:51 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 108 min |
| Sep 13, 9:03 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 109 min |
| Sep 13, 9:12 PM EDT | Flash Flood Warning | PHI | Northampton | 114 min |
| Sep 13, 9:21 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 38 min |
| Sep 15, 12:35 AM EDT | Special Weather Statement | CLE | Crawford, Erie | 70 min |
| Sep 15, 1:50 AM EDT | Special Weather Statement | CLE | Crawford, Erie | 55 min |
| Sep 15, 10:00 AM EDT | Special Weather Statement | PBZ | Allegheny | 30 min |
| Sep 15, 10:33 AM EDT | Mesoscale Discussion | SPC | Bedford, Berks, Blair, Bradford, Cambria, Carbon and 32 more | 2 hr |
| Sep 15, 11:32 AM EDT | Special Weather Statement | CLE | Crawford | 58 min |
| Sep 15, 11:48 AM EDT | Special Weather Statement | CTP | Warren | 42 min |
| Sep 15, 11:55 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bradford, Cambria and 34 more | 8 hr |
| Sep 15, 12:46 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 44 min |
| Sep 15, 1:11 PM EDT | Special Weather Statement | CTP | Sullivan | 49 min |
| Sep 15, 1:22 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 23 min |
| Sep 15, 1:27 PM EDT | Special Weather Statement | CTP | Centre | 33 min |
| Sep 15, 1:44 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 31 min |
| Sep 15, 1:48 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 42 min |
| Sep 15, 2:14 PM EDT | Areal Flood Advisory | CTP | Lycoming, Sullivan | 2 hr |
| Sep 15, 2:14 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 31 min |
| Sep 15, 2:32 PM EDT | Special Weather Statement | BGM | Susquehanna | 43 min |
| Sep 15, 2:36 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 66 min |
| Sep 15, 2:45 PM EDT | Special Weather Statement | CTP | Union | 30 min |
| Sep 15, 2:46 PM EDT | Special Weather Statement | CTP | Sullivan | 44 min |
| Sep 15, 2:54 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Northumberland, Union | 36 min |
| Sep 15, 3:13 PM EDT | Special Weather Statement | CTP | Union | 17 min |
| Sep 15, 3:18 PM EDT | Special Weather Statement | BGM | Susquehanna | 42 min |
| Sep 15, 3:20 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin | 40 min |
| Sep 15, 3:24 PM EDT | Severe Thunderstorm Warning | CTP | Montour, Northumberland, Union | 36 min |
| Sep 15, 3:30 PM EDT | Special Weather Statement | CTP | Huntingdon | 30 min |
| Sep 15, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Carbon, Lehigh, Monroe, Northampton | 6 hr |
| Sep 15, 3:53 PM EDT | Special Weather Statement | BGM | Wayne | 52 min |
| Sep 15, 3:55 PM EDT | Special Weather Statement | CTP | Snyder | 35 min |
| Sep 15, 3:59 PM EDT | Special Weather Statement | CTP | Columbia, Montour | 31 min |
| Sep 15, 4:03 PM EDT | Areal Flood Advisory | CTP | Lycoming, Sullivan | 2 hr |
| Sep 15, 4:12 PM EDT | Flash Flood Warning | CTP | Columbia, Lycoming, Sullivan | 3 hr |
| Sep 15, 4:18 PM EDT | Special Weather Statement | BGM | Luzerne, Wyoming | 42 min |
| Sep 15, 4:18 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 27 min |
| Sep 15, 4:22 PM EDT | Areal Flood Advisory | PBZ | Greene, Washington | 84 min |
| Sep 15, 4:25 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 35 min |
| Sep 15, 4:27 PM EDT | Special Weather Statement | CTP | Perry | 33 min |
| Sep 15, 4:36 PM EDT | Special Weather Statement | CTP | Columbia, Northumberland | 24 min |
| Sep 15, 4:38 PM EDT | Mesoscale Discussion | SPC | Blair, Carbon, Centre, Columbia, Cumberland, Dauphin and 18 more | 67 min |
| Sep 15, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 32 min |
| Sep 15, 4:46 PM EDT | Areal Flood Advisory | CTP | Montour, Northumberland | 89 min |
| Sep 15, 4:49 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 41 min |
| Sep 15, 4:58 PM EDT | Special Weather Statement | CTP | Northumberland | 32 min |
| Sep 15, 4:59 PM EDT | Special Weather Statement | CTP | Perry | 31 min |
| Sep 15, 5:15 PM EDT | Special Weather Statement | CTP | Perry | 30 min |
| Sep 15, 5:19 PM EDT | Special Weather Statement | CTP | Franklin | 26 min |
| Sep 15, 5:23 PM EDT | Special Weather Statement | BGM | Lackawanna | 37 min |
| Sep 15, 5:31 PM EDT | Special Weather Statement | PHI | Monroe | 29 min |
| Sep 15, 5:32 PM EDT | Special Weather Statement | CTP | Dauphin | 28 min |
| Sep 15, 5:34 PM EDT | Special Weather Statement | BGM | Luzerne | 26 min |
| Sep 15, 5:37 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne | 38 min |
| Sep 15, 5:37 PM EDT | Special Weather Statement | CTP | Schuylkill | 23 min |
| Sep 15, 5:54 PM EDT | Special Weather Statement | CTP | Lebanon | 36 min |
| Sep 15, 6:15 PM EDT | Special Weather Statement | BGM | Pike | 30 min |
| Sep 15, 6:16 PM EDT | Special Weather Statement | CTP | York | 29 min |
| Sep 15, 6:17 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 43 min |
| Sep 15, 6:24 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 27 min |
| Sep 15, 6:29 PM EDT | Special Weather Statement | PHI | Lebanon | 31 min |
| Sep 15, 6:41 PM EDT | Special Weather Statement | CTP | Dauphin | 34 min |
| Sep 15, 6:48 PM EDT | Special Weather Statement | PHI | Berks | 27 min |
| Sep 15, 6:54 PM EDT | Special Weather Statement | CTP | Berks | 21 min |
| Sep 15, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 37 min |
| Sep 15, 7:09 PM EDT | Areal Flood Advisory | CTP | Dauphin, York | 96 min |
| Sep 15, 7:17 PM EDT | Special Weather Statement | PHI | Lehigh | 28 min |
| Sep 15, 7:36 PM EDT | Special Weather Statement | PHI | Montgomery | 24 min |
| Sep 15, 8:11 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Carbon, Lancaster, Lebanon, Lehigh and 3 more | 2 hr |
| Sep 15, 10:26 PM EDT | Special Weather Statement | PHI | Chester | 49 min |
| Sep 16, 6:48 PM EDT | Special Weather Statement | CTP | Adams | 57 min |
| Sep 22, 3:24 AM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 41 hr |
| Sep 22, 3:42 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 33 hr |
| Sep 22, 1:08 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 8 more | 3 hr |
| Sep 22, 2:23 PM EDT | Tornado Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more | 6 hr |
| Sep 22, 3:05 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 37 hr |
| Sep 22, 4:08 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 97 min |
| Sep 22, 4:25 PM EDT | Special Weather Statement | PBZ | Beaver | 35 min |
| Sep 22, 4:53 PM EDT | Special Weather Statement | PBZ | Allegheny, Beaver, Butler | 37 min |
| Sep 22, 5:25 PM EDT | Special Weather Statement | PBZ | Butler | 35 min |
| Sep 22, 5:43 PM EDT | Tornado Warning | PBZ | Armstrong, Butler | 18 min |
| Sep 22, 6:04 PM EDT | Tornado Warning | PBZ | Butler, Venango | 12 min |
| Sep 22, 6:13 PM EDT | Mesoscale Discussion | SPC | Armstrong, Butler, Clarion, Crawford, Erie, Forest and 5 more | 92 min |
| Sep 22, 6:40 PM EDT | Special Weather Statement | CTP | Adams | 35 min |
| Sep 22, 8:38 PM EDT | Special Weather Statement | CTP | Elk | 37 min |
| Sep 23, 2:15 AM EDT | Areal Flood Advisory | CTP | Franklin | 2 hr |
| Sep 23, 3:13 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Chester, Cumberland, Dauphin, Lancaster and 3 more | 5 hr |
| Sep 23, 3:32 AM EDT | Areal Flood Advisory | CTP | Centre, Clinton, Huntingdon, Mifflin | 7 hr |
| Sep 23, 4:14 AM EDT | Areal Flood Advisory | CTP | Adams | 3 hr |
| Sep 23, 7:14 AM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, Dauphin, York | 3 hr |
| Sep 23, 7:36 AM EDT | Areal Flood Advisory | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan, Tioga and 1 more | 3 hr |
| Sep 23, 7:44 AM EDT | River Flood Warning | CTP | Perry | 23 hr |
| Sep 23, 7:44 AM EDT | River Flood Warning | CTP | Centre, Clinton | 11 hr |
| Sep 23, 8:21 AM EDT | Areal Flood Advisory | CTP | Tioga | 5 hr |
| Sep 23, 8:28 AM EDT | Areal Flood Advisory | BGM | Bradford | 3 hr |
| Sep 23, 8:52 AM EDT | Areal Flood Advisory | CTP | Lancaster, York | 2 hr |
| Sep 23, 9:12 AM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 10 hr |
| Sep 23, 10:10 AM EDT | River Flood Warning | CTP | Snyder, Union | 26 hr |
| Sep 23, 10:22 AM EDT | Areal Flood Advisory | CTP | Lancaster | 3 hr |
| Sep 23, 10:30 AM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more | 2 hr |
| Sep 23, 10:36 AM EDT | Areal Flood Advisory | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan, Tioga and 1 more | 2 hr |
| Sep 23, 10:44 AM EDT | Areal Flood Advisory | BGM | Bradford | 3 hr |
| Sep 23, 10:52 AM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Sep 23, 11:22 AM EDT | Areal Flood Advisory | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 3 hr |
| Sep 23, 11:29 AM EDT | Special Weather Statement | BGM | Lackawanna | 31 min |
| Sep 23, 11:33 AM EDT | Areal Flood Advisory | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 23, 11:40 AM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Carbon, Lehigh, Montgomery, Northampton | 3 hr |
| Sep 23, 11:45 AM EDT | Areal Flood Advisory | BGM | Bradford, Susquehanna | 3 hr |
| Sep 23, 11:57 AM EDT | Flash Flood Warning | PHI | Chester, Delaware | 3 hr |
| Sep 23, 12:12 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Sep 23, 12:28 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 23, 12:54 PM EDT | Special Weather Statement | PHI | Philadelphia | 51 min |
| Sep 23, 12:56 PM EDT | Areal Flood Advisory | PHI | Bucks, Carbon, Lehigh, Monroe, Montgomery, Northampton and 1 more | 3 hr |
| Sep 23, 12:57 PM EDT | Special Weather Statement | PHI | Bucks | 33 min |
| Sep 23, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 47 min |
| Sep 23, 1:29 PM EDT | Mesoscale Discussion | SPC | Bucks, Northampton, Philadelphia | 61 min |
| Sep 23, 1:42 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 23, 1:48 PM EDT | River Flood Warning | PHI | Chester | 5 hr |
| Sep 23, 1:58 PM EDT | Special Weather Statement | PHI | Bucks | 32 min |
| Sep 23, 2:32 PM EDT | Special Weather Statement | BGM | Lackawanna | 28 min |
| Sep 23, 2:37 PM EDT | Areal Flood Advisory | PHI | Bucks, Northampton | 3 hr |
| Sep 23, 3:26 PM EDT | Flash Flood Warning | PHI | Bucks | 2 hr |
| Sep 23, 3:39 PM EDT | Beach Hazards Statement | CLE | Erie | 30 hr |
| Sep 23, 3:45 PM EDT | Special Weather Statement | BGM | Pike | 30 min |
| Sep 23, 4:15 PM EDT | Special Weather Statement | BGM | Wayne | 45 min |
| Sep 23, 4:26 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 80 min |
| Sep 23, 5:32 PM EDT | Areal Flood Advisory | BGM | Pike, Wayne | 4 hr |
| Sep 23, 5:36 PM EDT | River Flood Warning | CTP | Lebanon, Schuylkill | 12 hr |
| Sep 23, 7:18 PM EDT | Areal Flood Warning | PHI | Berks, Montgomery | 36 min |
| Sep 23, 10:42 PM EDT | River Flood Warning | CTP | Cumberland | 10 hr |
| Sep 25, 11:31 AM EDT | Beach Hazards Statement | CLE | Erie | 56 hr |
| Sep 28, 3:31 AM EDT | Special Weather Statement | PBZ | Westmoreland | 29 min |
| Sep 28, 3:38 AM EDT | Special Weather Statement | PBZ | Westmoreland | 37 min |
| Sep 28, 4:04 AM EDT | Special Weather Statement | PBZ | Washington | 26 min |
| Sep 28, 4:40 AM EDT | Special Weather Statement | PBZ | Allegheny | 35 min |
| Sep 28, 5:14 AM EDT | Special Weather Statement | PBZ | Allegheny | 31 min |
| Sep 28, 5:36 AM EDT | Special Weather Statement | CTP | Cambria | 39 min |
| Sep 28, 5:45 AM EDT | Special Weather Statement | CTP | Blair, Cambria, Huntingdon | 45 min |
| Sep 28, 5:46 AM EDT | Special Weather Statement | PBZ | Allegheny | 29 min |
| Sep 28, 6:01 AM EDT | Special Weather Statement | PBZ | Washington | 29 min |
| Sep 28, 6:14 AM EDT | Special Weather Statement | CTP | Franklin | 46 min |
| Sep 28, 6:20 AM EDT | Special Weather Statement | PBZ | Greene | 25 min |
| Sep 28, 6:46 AM EDT | Special Weather Statement | PBZ | Greene | 29 min |
| Sep 28, 7:07 AM EDT | Areal Flood Advisory | CTP | Blair, Cambria, Centre, Clearfield | 3 hr |
| Sep 28, 7:09 AM EDT | Special Weather Statement | PBZ | Westmoreland | 36 min |
| Sep 28, 7:18 AM EDT | Special Weather Statement | PBZ | Greene | 27 min |
| Sep 28, 7:43 AM EDT | Special Weather Statement | CTP | Potter | 32 min |
| Sep 28, 7:44 AM EDT | Special Weather Statement | PBZ | Greene | 31 min |
| Sep 28, 7:54 AM EDT | Special Weather Statement | CTP | Tioga | 36 min |
| Sep 28, 8:22 AM EDT | Special Weather Statement | CTP | Tioga | 23 min |
| Sep 28, 8:26 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 2 hr |
| Sep 28, 8:33 AM EDT | Special Weather Statement | CTP | Clinton | 27 min |
| Sep 28, 8:51 AM EDT | Special Weather Statement | CTP | Tioga | 24 min |
| Sep 28, 8:54 AM EDT | Special Weather Statement | CTP | Mifflin | 36 min |
| Sep 28, 9:23 AM EDT | Special Weather Statement | PHI | Montgomery | 37 min |
| Sep 28, 9:47 AM EDT | Special Weather Statement | PHI | Bucks, Montgomery | 28 min |
| Sep 28, 12:04 PM EDT | Beach Hazards Statement | CLE | Erie | 3 hr |
| Sep 28, 6:15 PM EDT | Special Weather Statement | PHI | Chester | 45 min |
| Sep 28, 7:14 PM EDT | Special Weather Statement | PHI | Delaware | 46 min |
| Sep 28, 7:29 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 31 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 50 |
| Tornado Warning | 13 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 19 |
| Special Weather Statement | 123 |
| Flooding | |
| Areal Flood Warning | 21 |
| Flash Flood Warning | 36 |
| River Flood Warning | 45 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 45 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Advisory | 2 |
| Beach Hazards Statement | 6 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County53
- Northampton County46
- Montgomery County38
- Lehigh County37
- Berks County35
- Delaware County33
- Philadelphia County33
- Chester County30
- Monroe County29
- Carbon County26
- York County25
- Luzerne County25
- Adams County24
- Lackawanna County21
- Columbia County20
- Westmoreland County19
- Pike County19
- Lancaster County18
- Northumberland County18
- Wayne County17
- Lebanon County17
- Union County17
- Lycoming County17
- Sullivan County17
- Centre County16
- Schuylkill County16
- Erie County16
- Allegheny County15
- Washington County15
- Mifflin County15
- Montour County15
- Dauphin County14
- Franklin County14
- Snyder County14
- Huntingdon County13
- Perry County13
- Susquehanna County13
- Fayette County12
- Indiana County12
- Cambria County12
27 more counties
- Cumberland County12
- Butler County11
- Greene County11
- Juniata County11
- Venango County11
- Tioga County11
- Armstrong County10
- Clearfield County10
- Wyoming County10
- Bradford County10
- Forest County10
- Clinton County10
- Beaver County9
- Blair County9
- Crawford County9
- Clarion County8
- Jefferson County8
- Somerset County7
- Potter County7
- Bedford County6
- Fulton County6
- Elk County6
- McKean County5
- Warren County4
- Cameron County3
- Lawrence County3
- Mercer County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.