Alert archive / Pennsylvania / 2010
Weather alerts in Pennsylvania, September 2010
228 weather alerts in September 2010, 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 2010. Tap one for its archive.
- Alerts
- 228
- Warnings
- 102
- Watches
- 12
- Advisories
- 14
- Busiest day
- September 30, 201059 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 3, 4:52 PM EDT | Special Weather Statement | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 4 more | 83 min |
| Sep 3, 8:12 PM EDT | Special Weather Statement | CTP | Northumberland | 78 min |
| Sep 3, 8:42 PM EDT | Special Weather Statement | CTP | Lebanon | 48 min |
| Sep 4, 4:19 AM EDT | Red Flag Warning | PHI | Delaware, Philadelphia | 13 hr |
| Sep 7, 4:27 AM EDT | Fire Weather Watch | PHI | Berks, Delaware, Lehigh, Philadelphia | 11 hr |
| Sep 7, 3:42 PM EDT | Red Flag Warning | PHI | Berks, Delaware, Lehigh, Philadelphia | 27 hr |
| Sep 7, 5:45 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 60 min |
| Sep 7, 5:58 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 63 min |
| Sep 7, 7:26 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 33 min |
| Sep 7, 8:07 PM EDT | Special Weather Statement | CTP | Warren | 23 min |
| Sep 7, 8:30 PM EDT | Special Weather Statement | PBZ | Lawrence | 45 min |
| Sep 7, 8:34 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 26 min |
| Sep 7, 9:42 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 30 min |
| Sep 7, 9:59 PM EDT | Fire Weather Watch | CTP | Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 4 more | 12 hr |
| Sep 8, 3:57 AM EDT | Coastal Flood Statement | CLE | Erie | 16 hr |
| Sep 8, 10:03 AM EDT | Red Flag Warning | CTP | Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 5 more | 9 hr |
| Sep 9, 3:55 AM EDT | Coastal Flood Statement | CLE | Erie | 16 hr |
| Sep 13, 12:51 PM EDT | Mesoscale Discussion | SPC | Bradford, Carbon, Lackawanna, Luzerne, Monroe, Northampton and 5 more | 84 min |
| Sep 13, 1:29 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wayne | 61 min |
| Sep 13, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Carbon, Lackawanna, Luzerne, Monroe, Northampton and 4 more | 6 hr |
| Sep 13, 1:58 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 32 min |
| Sep 13, 2:18 PM EDT | Special Weather Statement | PHI | Carbon, Monroe, Northampton | 57 min |
| Sep 13, 2:19 PM EDT | Tornado Warning | BGM | Susquehanna, Wayne | 41 min |
| Sep 13, 2:33 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Susquehanna, Wyoming | 57 min |
| Sep 13, 2:37 PM EDT | Special Weather Statement | CTP | Sullivan | 53 min |
| Sep 13, 2:52 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Susquehanna, Wayne | 53 min |
| Sep 13, 3:24 PM EDT | Special Weather Statement | CTP | Sullivan | 36 min |
| Sep 13, 3:30 PM EDT | Special Weather Statement | PHI | Monroe | 60 min |
| Sep 13, 3:32 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne, Wyoming | 58 min |
| Sep 13, 3:44 PM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 61 min |
| Sep 13, 3:54 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Luzerne, Wyoming | 66 min |
| Sep 13, 4:03 PM EDT | Mesoscale Discussion | SPC | Bradford, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 9 more | 87 min |
| Sep 13, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 52 min |
| Sep 13, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 55 min |
| Sep 13, 5:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 50 min |
| Sep 13, 5:28 PM EDT | Special Weather Statement | PHI | Northampton | 62 min |
| Sep 13, 6:05 PM EDT | Special Weather Statement | PHI | Northampton | 55 min |
| Sep 13, 6:06 PM EDT | Mesoscale Discussion | SPC | Bucks, Carbon, Lehigh, Monroe, Northampton, Pike | 54 min |
| Sep 13, 7:00 PM EDT | Special Weather Statement | PHI | Bucks | 60 min |
| Sep 14, 11:00 AM EDT | Red Flag Warning | PHI | Berks, Delaware, Lehigh, Philadelphia | 7 hr |
| Sep 16, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | Crawford, Erie | 5 hr |
| Sep 16, 4:29 PM EDT | Mesoscale Discussion | SPC | Beaver, Butler, Crawford, Erie, Lawrence, Mercer and 2 more | 91 min |
| Sep 16, 4:36 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 54 min |
| Sep 16, 4:37 PM EDT | Mesoscale Discussion | SPC | Delaware, Philadelphia | 53 min |
| Sep 16, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 80 min |
| Sep 16, 5:02 PM EDT | Severe Thunderstorm Watch | SPC | Beaver, Lawrence, Mercer, Venango | 3 hr |
| Sep 16, 6:04 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 56 min |
| Sep 16, 6:10 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 50 min |
| Sep 16, 6:18 PM EDT | Tornado Warning | CLE | Erie | 57 min |
| Sep 16, 6:33 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 42 min |
| Sep 16, 6:40 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 65 min |
| Sep 16, 7:15 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 60 min |
| Sep 16, 7:53 PM EDT | Areal Flood Advisory | CLE | Erie | 3 hr |
| Sep 16, 8:45 PM EDT | Special Weather Statement | PBZ | Fayette | 60 min |
| Sep 16, 9:02 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 43 min |
| Sep 16, 9:08 PM EDT | Special Weather Statement | CTP | Somerset | 22 min |
| Sep 16, 11:43 PM EDT | Special Weather Statement | CTP | Cumberland, York | 47 min |
| Sep 19, 4:25 PM EDT | Special Weather Statement | CTP | Clinton | 35 min |
| Sep 19, 4:53 PM EDT | Special Weather Statement | CTP | Clinton, Lycoming | 22 min |
| Sep 19, 5:12 PM EDT | Special Weather Statement | CTP | Lycoming, Union | 33 min |
| Sep 22, 1:26 PM EDT | Mesoscale Discussion | SPC | Armstrong, Berks, Blair, Bradford, Bucks, Cambria and 38 more | 94 min |
| Sep 22, 1:42 PM EDT | Special Weather Statement | PBZ | Clarion | 48 min |
| Sep 22, 2:07 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 38 min |
| Sep 22, 2:24 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk | 66 min |
| Sep 22, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 38 more | 6 hr |
| Sep 22, 2:41 PM EDT | Special Weather Statement | CTP | Dauphin, Perry | 34 min |
| Sep 22, 3:00 PM EDT | Tornado Warning | CTP | Cameron, Clearfield, Elk | 30 min |
| Sep 22, 3:09 PM EDT | Special Weather Statement | CTP | Cumberland | 36 min |
| Sep 22, 3:10 PM EDT | Mesoscale Discussion | SPC | Berks, Bradford, Bucks, Carbon, Chester, Columbia and 14 more | 65 min |
| Sep 22, 3:17 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton | 58 min |
| Sep 22, 3:18 PM EDT | Special Weather Statement | PBZ | Allegheny | 27 min |
| Sep 22, 3:19 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, York | 56 min |
| Sep 22, 3:22 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 53 min |
| Sep 22, 3:29 PM EDT | Special Weather Statement | CTP | Adams, York | 61 min |
| Sep 22, 3:35 PM EDT | Special Weather Statement | CTP | Cambria | 70 min |
| Sep 22, 3:38 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Tioga | 55 min |
| Sep 22, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lackawanna and 9 more | 7 hr |
| Sep 22, 3:44 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 31 min |
| Sep 22, 3:57 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Lancaster, York | 78 min |
| Sep 22, 3:58 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 47 min |
| Sep 22, 4:00 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Montour, Northumberland, Union | 60 min |
| Sep 22, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Indiana, Washington, Westmoreland | 48 min |
| Sep 22, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 60 min |
| Sep 22, 4:23 PM EDT | Special Weather Statement | PHI | Chester | 52 min |
| Sep 22, 4:32 PM EDT | Special Weather Statement | PHI | Carbon | 58 min |
| Sep 22, 4:38 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Sullivan | 46 min |
| Sep 22, 4:43 PM EDT | Special Weather Statement | CTP | Blair, Centre, Huntingdon, Mifflin | 62 min |
| Sep 22, 4:46 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Bucks, Cambria and 31 more | 59 min |
| Sep 22, 4:49 PM EDT | Special Weather Statement | PHI | Chester | 56 min |
| Sep 22, 4:50 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 70 min |
| Sep 22, 4:55 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 65 min |
| Sep 22, 4:59 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 31 min |
| Sep 22, 5:02 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 58 min |
| Sep 22, 5:11 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 64 min |
| Sep 22, 5:20 PM EDT | Special Weather Statement | CTP | Montour, Northumberland, Schuylkill, Snyder | 70 min |
| Sep 22, 5:37 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Schuylkill, Snyder | 53 min |
| Sep 22, 5:48 PM EDT | Special Weather Statement | PHI | Monroe, Northampton | 87 min |
| Sep 22, 5:54 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Bedford, Cumberland, Franklin, Fulton, Huntingdon and 3 more | 66 min |
| Sep 22, 5:58 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 62 min |
| Sep 22, 6:04 PM EDT | Special Weather Statement | CTP | Dauphin, Lebanon | 56 min |
| Sep 22, 6:17 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, Northumberland, Schuylkill | 58 min |
| Sep 22, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 42 min |
| Sep 22, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Northampton | 67 min |
| Sep 22, 6:30 PM EDT | Special Weather Statement | CTP | Schuylkill | 30 min |
| Sep 22, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 35 min |
| Sep 22, 6:47 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more | 73 min |
| Sep 22, 7:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Monroe, Montgomery, Northampton | 53 min |
| Sep 22, 7:14 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Bucks, Carbon, Chester and 19 more | 61 min |
| Sep 22, 7:45 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 60 min |
| Sep 22, 8:05 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 55 min |
| Sep 22, 8:17 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 28 min |
| Sep 22, 8:50 PM EDT | Special Weather Statement | PHI | Chester | 40 min |
| Sep 23, 3:45 AM EDT | Dense Fog Advisory | CTP | Blair, Cameron, Centre, Clearfield, Clinton, Columbia and 14 more | 2 hr |
| Sep 24, 12:08 PM EDT | Wind Advisory | CLE | Crawford, Erie | 6 hr |
| Sep 25, 4:16 AM EDT | Coastal Flood Statement | CLE | Erie | 16 hr |
| Sep 27, 1:03 PM EDT | Mesoscale Discussion | SPC | Adams, Chester, Cumberland, Delaware, Franklin, Lancaster and 1 more | 87 min |
| Sep 27, 1:05 PM EDT | Areal Flood Advisory | CTP | Adams, York | 3 hr |
| Sep 27, 1:55 PM EDT | Flash Flood Warning | CTP | Adams, York | 3 hr |
| Sep 27, 3:03 PM EDT | Areal Flood Advisory | CTP | Cumberland, Dauphin, Lancaster, Lebanon, York | 4 hr |
| Sep 27, 3:29 PM EDT | Special Weather Statement | CTP | Lancaster | 31 min |
| Sep 27, 4:07 PM EDT | Special Weather Statement | CTP | Schuylkill | 23 min |
| Sep 27, 4:14 PM EDT | Special Weather Statement | CTP | Franklin | 31 min |
| Sep 27, 4:42 PM EDT | Special Weather Statement | CTP | Franklin | 33 min |
| Sep 27, 4:44 PM EDT | Special Weather Statement | CTP | Schuylkill | 31 min |
| Sep 27, 5:07 PM EDT | Special Weather Statement | PHI | Philadelphia | 38 min |
| Sep 27, 5:54 PM EDT | Special Weather Statement | CTP | Fulton | 36 min |
| Sep 28, 1:23 AM EDT | Special Weather Statement | CTP | Somerset | 37 min |
| Sep 28, 4:35 AM EDT | Special Weather Statement | PBZ | Allegheny, Westmoreland | 55 min |
| Sep 28, 4:46 AM EDT | Special Weather Statement | CTP | Bedford, Somerset | 44 min |
| Sep 28, 4:48 AM EDT | Special Weather Statement | CTP | Bedford, Somerset | 42 min |
| Sep 28, 4:58 AM EDT | Special Weather Statement | PBZ | Armstrong, Indiana | 62 min |
| Sep 28, 5:03 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 57 min |
| Sep 28, 5:57 AM EDT | Special Weather Statement | CTP | Blair, Cambria | 48 min |
| Sep 28, 5:57 AM EDT | Special Weather Statement | PBZ | Armstrong, Clarion, Jefferson | 63 min |
| Sep 28, 6:44 AM EDT | Special Weather Statement | CTP | Blair, Clearfield | 46 min |
| Sep 28, 6:57 AM EDT | Special Weather Statement | PBZ | Clarion, Jefferson | 63 min |
| Sep 28, 7:23 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton, Huntingdon | 67 min |
| Sep 28, 7:34 AM EDT | Special Weather Statement | CTP | Cameron, Centre | 41 min |
| Sep 28, 7:39 AM EDT | Special Weather Statement | PHI | Berks, Bucks, Carbon, Delaware, Lehigh, Monroe and 3 more | 66 min |
| Sep 28, 8:00 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Bucks, Carbon, Centre and 33 more | 2 hr |
| Sep 28, 8:14 AM EDT | Special Weather Statement | CTP | Fulton, Huntingdon | 31 min |
| Sep 28, 8:24 AM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Clinton, Fulton, Huntingdon, Mifflin | 66 min |
| Sep 28, 8:35 AM EDT | Special Weather Statement | PHI | Berks | 55 min |
| Sep 28, 9:15 AM EDT | Special Weather Statement | CTP | Lancaster | 30 min |
| Sep 28, 9:26 AM EDT | Special Weather Statement | PHI | Chester | 64 min |
| Sep 28, 9:29 AM EDT | Special Weather Statement | PHI | Berks | 61 min |
| Sep 28, 9:46 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 44 min |
| Sep 28, 9:55 AM EDT | Special Weather Statement | CTP | Sullivan | 35 min |
| Sep 28, 9:59 AM EDT | Special Weather Statement | PHI | Chester, Montgomery | 61 min |
| Sep 28, 10:01 AM EDT | Special Weather Statement | PHI | Carbon, Monroe, Northampton | 59 min |
| Sep 28, 10:05 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh, Montgomery | 55 min |
| Sep 28, 10:09 AM EDT | Special Weather Statement | CTP | Carbon | 21 min |
| Sep 28, 10:17 AM EDT | Special Weather Statement | PHI | Chester | 58 min |
| Sep 28, 10:18 AM EDT | Special Weather Statement | CTP | Lancaster | 27 min |
| Sep 28, 10:20 AM EDT | Special Weather Statement | CTP | Lancaster | 25 min |
| Sep 28, 10:33 AM EDT | Special Weather Statement | CTP | Sullivan | 42 min |
| Sep 28, 10:58 AM EDT | Tornado Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lackawanna and 10 more | 7 hr |
| Sep 28, 11:03 AM EDT | Special Weather Statement | CTP | Franklin, Mifflin | 57 min |
| Sep 28, 11:15 AM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 45 min |
| Sep 28, 12:02 PM EDT | Special Weather Statement | CTP | Union | 43 min |
| Sep 28, 12:06 PM EDT | Special Weather Statement | PHI | Lehigh, Monroe, Montgomery, Northampton | 54 min |
| Sep 28, 1:22 PM EDT | Special Weather Statement | CTP | Lycoming | 53 min |
| Sep 28, 1:23 PM EDT | Special Weather Statement | PHI | Carbon, Lehigh, Monroe, Northampton | 52 min |
| Sep 28, 1:50 PM EDT | Mesoscale Discussion | SPC | Bucks, Carbon, Chester, Delaware, Lackawanna, Lehigh and 7 more | 55 min |
| Sep 29, 3:16 AM EDT | Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 56 hr |
| Sep 29, 3:16 AM EDT | Flood Watch | CTP | Adams, Bedford, Blair, Centre, Clinton, Columbia and 20 more | 50 hr |
| Sep 29, 3:52 AM EDT | Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 49 hr |
| Sep 29, 3:19 PM EDT | Coastal Flood Advisory | PHI | Delaware, Philadelphia | 30 hr |
| Sep 29, 3:24 PM EDT | Wind Advisory | PHI | Delaware, Philadelphia | 38 hr |
| Sep 30, 6:06 AM EDT | Areal Flood Warning | PHI | Berks, Chester | 4 hr |
| Sep 30, 7:23 AM EDT | Special Weather Statement | CTP | Lancaster | 37 min |
| Sep 30, 7:33 AM EDT | Special Weather Statement | PHI | Carbon, Chester, Lehigh, Monroe, Northampton | 117 min |
| Sep 30, 7:50 AM EDT | Areal Flood Advisory | CTP | Dauphin, Lancaster, Lebanon, Northumberland, Schuylkill, York | 3 hr |
| Sep 30, 8:03 AM EDT | Areal Flood Warning | PHI | Berks, Carbon, Chester, Lehigh, Montgomery | 4 hr |
| Sep 30, 8:28 AM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, Schuylkill, York | 12 hr |
| Sep 30, 8:47 AM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 3 hr |
| Sep 30, 8:58 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 62 min |
| Sep 30, 9:31 AM EDT | Areal Flood Warning | PHI | Lehigh, Monroe, Northampton | 3 hr |
| Sep 30, 10:05 AM EDT | Special Weather Statement | CTP | Lancaster, Schuylkill | 55 min |
| Sep 30, 10:19 AM EDT | Areal Flood Advisory | BGM | Susquehanna, Wayne | 3 hr |
| Sep 30, 10:31 AM EDT | Areal Flood Warning | CTP | Adams, Columbia, Cumberland, Dauphin, Juniata, Lebanon and 9 more | 10 hr |
| Sep 30, 10:38 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 37 min |
| Sep 30, 10:49 AM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Dauphin, Delaware and 10 more | 116 min |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Lancaster, York | 34 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Cumberland, York | 28 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 34 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 41 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Dauphin | 41 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Clinton | 17 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Centre, Snyder, Union | 22 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Perry | 17 hr |
| Sep 30, 11:07 AM EDT | River Flood Warning | CTP | Cumberland | 17 hr |
| Sep 30, 11:38 AM EDT | Areal Flood Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 8 more | 16 hr |
| Sep 30, 11:42 AM EDT | River Flood Warning | BGM | Susquehanna | 40 hr |
| Sep 30, 11:42 AM EDT | River Flood Warning | BGM | Bradford | 51 hr |
| Sep 30, 11:42 AM EDT | River Flood Warning | BGM | Luzerne | 28 hr |
| Sep 30, 11:42 AM EDT | River Flood Warning | BGM | Wyoming | 11 hr |
| Sep 30, 11:43 AM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 3 hr |
| Sep 30, 12:05 PM EDT | Areal Flood Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne | 2 hr |
| Sep 30, 12:19 PM EDT | Areal Flood Advisory | BGM | Bradford, Susquehanna, Wyoming | 6 hr |
| Sep 30, 12:39 PM EDT | Tornado Watch | SPC | Berks, Bucks, Carbon, Chester, Dauphin, Delaware and 9 more | 6 hr |
| Sep 30, 12:45 PM EDT | Special Weather Statement | CTP | Lancaster | 30 min |
| Sep 30, 12:51 PM EDT | Special Weather Statement | CTP | Snyder | 24 min |
| Sep 30, 1:13 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 32 min |
| Sep 30, 1:18 PM EDT | Tornado Warning | CTP | Juniata, Perry, Snyder | 27 min |
| Sep 30, 1:27 PM EDT | Special Weather Statement | CTP | Lancaster | 33 min |
| Sep 30, 1:42 PM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon, Schuylkill, York | 6 hr |
| Sep 30, 1:48 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 6 hr |
| Sep 30, 2:12 PM EDT | Areal Flood Warning | PHI | Berks | 6 hr |
| Sep 30, 2:26 PM EDT | Special Weather Statement | CTP | Lebanon | 34 min |
| Sep 30, 2:39 PM EDT | Areal Flood Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 4 hr |
| Sep 30, 3:14 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 46 min |
| Sep 30, 3:16 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Columbia, Dauphin and 12 more | 119 min |
| Sep 30, 3:30 PM EDT | Areal Flood Warning | CTP | Centre, Clearfield, Clinton | 4 hr |
| Sep 30, 4:22 PM EDT | Areal Flood Warning | BGM | Bradford, Susquehanna, Wyoming | 3 hr |
| Sep 30, 5:03 PM EDT | Areal Flood Warning | BGM | Bradford | 4 hr |
| Sep 30, 5:11 PM EDT | Areal Flood Warning | BGM | Susquehanna | 4 hr |
| Sep 30, 6:14 PM EDT | Special Weather Statement | CTP | Dauphin, Lebanon, Northumberland, York | 61 min |
| Sep 30, 6:23 PM EDT | Areal Flood Warning | BGM | Bradford, Luzerne, Susquehanna, Wyoming | 4 hr |
| Sep 30, 6:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lebanon, Montour, Northumberland, Schuylkill | 49 min |
| Sep 30, 6:50 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 40 min |
| Sep 30, 6:51 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 54 min |
| Sep 30, 6:53 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 6 hr |
| Sep 30, 6:55 PM EDT | River Flood Warning | PHI | Chester, Delaware | 30 hr |
| Sep 30, 6:57 PM EDT | River Flood Warning | PHI | Berks, Montgomery | 16 hr |
| Sep 30, 7:24 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 2 more | 6 hr |
| Sep 30, 7:37 PM EDT | Special Weather Statement | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 113 min |
| Sep 30, 7:50 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 16 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 | 61 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 82 |
| Flooding | |
| Areal Flood Warning | 14 |
| Flash Flood Warning | 4 |
| River Flood Warning | 15 |
| Flood Watch | 3 |
| Areal Flood Advisory | 10 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| Coastal Flood Statement | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lancaster County34
- Monroe County33
- Northampton County33
- York County32
- Lehigh County31
- Carbon County31
- Delaware County28
- Berks County28
- Lebanon County27
- Dauphin County27
- Susquehanna County27
- Schuylkill County26
- Chester County26
- Philadelphia County25
- Pike County22
- Wayne County22
- Montgomery County22
- Lackawanna County21
- Wyoming County21
- Bucks County21
- Luzerne County20
- Cumberland County19
- Bradford County18
- Clinton County16
- Northumberland County16
- Adams County16
- Perry County16
- Centre County15
- Franklin County15
- Huntingdon County14
- Erie County14
- Sullivan County14
- Montour County14
- Blair County13
- Bedford County13
- Fulton County13
- Columbia County13
- Lycoming County12
- Snyder County12
- Somerset County11
27 more counties
- Union County11
- Mifflin County11
- Clearfield County10
- Juniata County10
- Cambria County9
- Cameron County9
- Elk County7
- Lawrence County7
- Allegheny County7
- Indiana County7
- Tioga County7
- Potter County6
- Crawford County6
- Beaver County6
- Armstrong County6
- Clarion County6
- Jefferson County6
- Westmoreland County6
- Fayette County6
- Mercer County5
- Washington County5
- Butler County4
- Venango County4
- Warren County3
- Forest County3
- Greene County3
- McKean County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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. Warning verification from the Mesonet's Cow. Rebuilt daily.