Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2013
Severe Thunderstorm Warnings in Pennsylvania, September 2013
54 severe thunderstorm warnings in September 2013. 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 2013. Tap one for its archive.
- Severe Thunderstorm Warnings
- 54
- Busiest day
- September 12, 201321 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 |
|---|---|---|---|---|
| Aug 31, 8:03 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 57 min |
| Sep 2, 5:34 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 56 min |
| Sep 2, 10:29 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 76 min |
| Sep 2, 1:07 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 83 min |
| Sep 2, 1:42 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Jefferson | 33 min |
| Sep 2, 2:19 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Potter, Warren | 56 min |
| Sep 2, 3:05 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 40 min |
| Sep 2, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter, Tioga | 61 min |
| Sep 2, 3:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Elk, Potter | 62 min |
| Sep 2, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter | 61 min |
| Sep 2, 5:09 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 51 min |
| Sep 2, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, York | 58 min |
| Sep 2, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 58 min |
| Sep 2, 6:21 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 39 min |
| Sep 2, 6:31 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 59 min |
| Sep 2, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 55 min |
| Sep 2, 7:10 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 65 min |
| Sep 2, 8:15 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wyoming | 45 min |
| Sep 2, 11:31 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 59 min |
| Sep 11, 2:05 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 40 min |
| Sep 11, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming | 54 min |
| Sep 11, 3:31 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 44 min |
| Sep 11, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Potter, Tioga | 62 min |
| Sep 11, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan, Union | 54 min |
| Sep 11, 4:19 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 56 min |
| Sep 11, 4:38 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 67 min |
| Sep 11, 4:42 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 63 min |
| Sep 11, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Montour, Northumberland, Schuylkill | 58 min |
| Sep 11, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Montour, Northumberland, Schuylkill, Snyder | 58 min |
| Sep 11, 6:33 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 57 min |
| Sep 11, 7:37 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Schuylkill | 53 min |
| Sep 11, 7:50 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 55 min |
| Sep 11, 7:55 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 50 min |
| Sep 12, 11:56 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 49 min |
| Sep 12, 12:12 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Jefferson | 48 min |
| Sep 12, 12:29 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 46 min |
| Sep 12, 12:47 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 43 min |
| Sep 12, 1:03 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 57 min |
| Sep 12, 1:27 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 48 min |
| Sep 12, 2:00 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clinton, Lycoming, Union | 60 min |
| Sep 12, 2:41 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Dauphin, Juniata, Mifflin, Perry, Snyder and 1 more | 64 min |
| Sep 12, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 4 more | 64 min |
| Sep 12, 3:24 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Wyoming | 66 min |
| Sep 12, 3:28 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Cumberland, Dauphin, Franklin, Juniata, Lancaster and 8 more | 47 min |
| Sep 12, 3:38 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 67 min |
| Sep 12, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Lancaster, York | 84 min |
| Sep 12, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Sullivan | 58 min |
| Sep 12, 4:03 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Luzerne, Susquehanna, Wyoming | 42 min |
| Sep 12, 4:08 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Cumberland, Dauphin, Lancaster, Lebanon, Montour and 4 more | 52 min |
| Sep 12, 4:40 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more | 95 min |
| Sep 12, 4:43 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 77 min |
| Sep 12, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 31 min |
| Sep 12, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 58 min |
| Sep 12, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 68 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Potter County9
- Columbia County8
- Lancaster County7
- Montour County7
- McKean County6
- Clinton County6
- Dauphin County6
- York County6
- Northumberland County6
- Schuylkill County6
- Indiana County5
- Lycoming County5
- Cumberland County5
- Cambria County5
- Centre County5
- Union County5
- Tioga County4
- Monroe County4
- Jefferson County4
- Clearfield County4
- Lebanon County4
- Armstrong County3
- Elk County3
- Cameron County3
- Wyoming County3
- Northampton County3
- Susquehanna County3
- Sullivan County3
- Snyder County3
- Perry County3
- Carbon County2
- Bucks County2
- Montgomery County2
- Warren County2
- Blair County2
- Lackawanna County2
- Allegheny County2
- Westmoreland County2
- Franklin County2
- Juniata County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20122014
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.