Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2023
Severe Thunderstorm Warnings in Pennsylvania, September 2023
93 severe thunderstorm warnings in September 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in September 2023. Tap one for its archive.
- Severe Thunderstorm Warnings
- 93
- Busiest day
- September 7, 202354 severe thunderstorm warnings
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 7, 12:21 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton, Huntingdon | 39 min |
| Sep 7, 12:57 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon, Mifflin | 48 min |
| Sep 7, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 33 min |
| Sep 7, 1:21 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Juniata, Perry | 39 min |
| Sep 7, 1:23 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wayne | 52 min |
| Sep 7, 1:28 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 47 min |
| Sep 7, 1:38 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 19 min |
| Sep 7, 1:48 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 42 min |
| Sep 7, 1:52 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 53 min |
| Sep 7, 1:54 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 51 min |
| Sep 7, 2:04 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 41 min |
| Sep 7, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| Sep 7, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| Sep 7, 2:15 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Juniata, Perry | 45 min |
| Sep 7, 2:30 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 45 min |
| Sep 7, 2:32 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Perry, Snyder | 58 min |
| Sep 7, 2:34 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 41 min |
| Sep 7, 2:38 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 37 min |
| Sep 7, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 24 min |
| Sep 7, 2:55 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Perry | 35 min |
| Sep 7, 2:57 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 48 min |
| Sep 7, 2:59 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 46 min |
| Sep 7, 3:03 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 42 min |
| Sep 7, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 38 min |
| Sep 7, 3:17 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 30 min |
| Sep 7, 3:20 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 40 min |
| Sep 7, 3:21 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 54 min |
| Sep 7, 3:30 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Schuylkill | 45 min |
| Sep 7, 3:33 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 42 min |
| Sep 7, 3:33 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill, York | 42 min |
| Sep 7, 3:42 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, York | 48 min |
| Sep 7, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 47 min |
| Sep 7, 4:01 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 44 min |
| Sep 7, 4:18 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 42 min |
| Sep 7, 4:22 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 53 min |
| Sep 7, 4:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lebanon, Schuylkill | 49 min |
| Sep 7, 4:43 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 47 min |
| Sep 7, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 43 min |
| Sep 7, 4:48 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Susquehanna, Wyoming | 37 min |
| Sep 7, 5:01 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 44 min |
| Sep 7, 5:11 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 34 min |
| Sep 7, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe | 43 min |
| Sep 7, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 31 min |
| Sep 7, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 41 min |
| Sep 7, 5:37 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 23 min |
| Sep 7, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh, Montgomery, Northampton | 46 min |
| Sep 7, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 42 min |
| Sep 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Monroe, Northampton | 34 min |
| Sep 7, 6:16 PM EDT | Severe Thunderstorm Warning | CTP | York | 44 min |
| Sep 7, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 42 min |
| Sep 7, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 24 min |
| Sep 7, 6:44 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 44 min |
| Sep 7, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 73 min |
| Sep 7, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 39 min |
| Sep 7, 9:37 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 18 min |
| Sep 8, 2:56 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 49 min |
| Sep 8, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 51 min |
| Sep 8, 5:02 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 58 min |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 46 min |
| Sep 8, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 41 min |
| Sep 8, 5:57 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 40 min |
| Sep 8, 5:59 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 25 min |
| Sep 8, 6:09 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 35 min |
| Sep 8, 6:33 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 35 min |
| Sep 8, 7:46 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 59 min |
| Sep 8, 8:02 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 43 min |
| Sep 8, 8:43 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 47 min |
| Sep 8, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, York | 24 min |
| Sep 8, 9:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 45 min |
| Sep 8, 9:48 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 42 min |
| Sep 8, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 43 min |
| Sep 8, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Sep 9, 12:01 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wayne | 30 min |
| Sep 9, 2:31 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 29 min |
| Sep 9, 3:34 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 56 min |
| Sep 9, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Huntingdon | 43 min |
| Sep 9, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 40 min |
| Sep 9, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 33 min |
| Sep 9, 4:17 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 19 min |
| Sep 9, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 43 min |
| Sep 9, 4:40 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 50 min |
| Sep 9, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 49 min |
| Sep 9, 5:00 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 60 min |
| Sep 9, 5:05 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 40 min |
| Sep 9, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 45 min |
| Sep 9, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 41 min |
| Sep 9, 5:23 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 41 min |
| Sep 9, 5:37 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wyoming | 38 min |
| Sep 9, 5:51 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 54 min |
| Sep 9, 5:55 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 35 min |
| Sep 9, 6:11 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna | 49 min |
| Sep 9, 6:24 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 51 min |
| Sep 9, 6:27 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 48 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- York County11
- Luzerne County10
- Berks County9
- Lehigh County9
- Lackawanna County9
- Monroe County9
- Lancaster County9
- Wayne County8
- Dauphin County8
- Northampton County8
- Chester County8
- Susquehanna County7
- Wyoming County7
- Pike County7
- Perry County6
- Huntingdon County5
- Lycoming County5
- Schuylkill County4
- Lebanon County4
- Montgomery County4
- Delaware County4
- Mifflin County3
- Cumberland County3
- Juniata County3
- Centre County3
- Adams County3
- Columbia County3
- Carbon County3
- Bradford County3
- Bucks County3
- Philadelphia County3
- Blair County3
- Snyder County2
- Clinton County2
- Indiana County2
- Westmoreland County2
- Bedford County1
- Fulton County1
- Northumberland County1
- Sullivan County1
2 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.