Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2012
Severe Thunderstorm Warnings in Pennsylvania, August 2012
70 severe thunderstorm warnings in August 2012. 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 August 2012. Tap one for its archive.
- Severe Thunderstorm Warnings
- 70
- Busiest day
- August 9, 201234 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 1, 3:38 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton | 67 min |
| Aug 1, 5:46 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 31 min |
| Aug 1, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 65 min |
| Aug 3, 1:54 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, Perry | 36 min |
| Aug 3, 1:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 34 min |
| Aug 3, 2:30 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Huntingdon, Juniata, Mifflin, Perry | 36 min |
| Aug 3, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 56 min |
| Aug 3, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 63 min |
| Aug 3, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 43 min |
| Aug 4, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 34 min |
| Aug 4, 1:42 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Juniata, Lancaster, Lebanon, Perry and 1 more | 63 min |
| Aug 4, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 44 min |
| Aug 4, 3:03 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, York | 57 min |
| Aug 4, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 54 min |
| Aug 4, 3:25 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Sullivan, Union | 65 min |
| Aug 5, 3:38 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 82 min |
| Aug 5, 4:00 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Schuylkill | 60 min |
| Aug 5, 4:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 78 min |
| Aug 5, 4:16 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon, York | 59 min |
| Aug 5, 4:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 67 min |
| Aug 5, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 77 min |
| Aug 5, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 68 min |
| Aug 5, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 74 min |
| Aug 8, 4:02 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 43 min |
| Aug 8, 7:14 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 30 min |
| Aug 8, 7:49 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 26 min |
| Aug 9, 12:06 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Warren | 54 min |
| Aug 9, 12:54 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter, Tioga | 66 min |
| Aug 9, 1:17 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton, Huntingdon | 58 min |
| Aug 9, 1:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 68 min |
| Aug 9, 1:59 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Huntingdon, Somerset | 61 min |
| Aug 9, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 77 min |
| Aug 9, 2:14 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 34 min |
| Aug 9, 2:20 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 70 min |
| Aug 9, 2:24 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 51 min |
| Aug 9, 2:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 65 min |
| Aug 9, 2:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Mifflin, Somerset | 62 min |
| Aug 9, 3:20 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 55 min |
| Aug 9, 3:36 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Lycoming, Potter | 54 min |
| Aug 9, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 57 min |
| Aug 9, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 63 min |
| Aug 9, 4:10 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming | 65 min |
| Aug 9, 4:13 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry, Snyder | 30 min |
| Aug 9, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 57 min |
| Aug 9, 4:39 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton | 51 min |
| Aug 9, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 78 min |
| Aug 9, 5:23 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 67 min |
| Aug 9, 5:29 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 61 min |
| Aug 9, 5:31 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 59 min |
| Aug 9, 5:56 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Schuylkill | 64 min |
| Aug 9, 6:35 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 55 min |
| Aug 9, 6:41 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 34 min |
| Aug 9, 6:57 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 63 min |
| Aug 9, 7:00 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 45 min |
| Aug 9, 7:02 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 58 min |
| Aug 9, 7:08 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 53 min |
| Aug 9, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 80 min |
| Aug 9, 7:15 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Venango | 60 min |
| Aug 9, 7:35 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Potter, Warren | 55 min |
| Aug 9, 7:36 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne, Wyoming | 54 min |
| Aug 9, 8:16 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 48 min |
| Aug 9, 8:45 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon, Schuylkill, York | 60 min |
| Aug 9, 8:51 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 24 min |
| Aug 14, 9:22 AM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 38 min |
| Aug 14, 6:52 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 53 min |
| Aug 14, 7:38 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 37 min |
| Aug 14, 8:38 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Snyder | 37 min |
| Aug 14, 9:01 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 59 min |
| Aug 14, 9:33 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 57 min |
| Aug 26, 4:23 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Juniata, Perry | 67 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County11
- York County8
- Montgomery County8
- Philadelphia County7
- Perry County7
- Lancaster County7
- Lebanon County7
- Franklin County6
- Northampton County6
- Cumberland County6
- Juniata County6
- Dauphin County6
- Bedford County5
- Huntingdon County5
- Berks County5
- Fulton County4
- Monroe County4
- Adams County4
- Delaware County4
- Lehigh County4
- Columbia County4
- Lycoming County4
- Carbon County3
- Montour County3
- Northumberland County3
- Schuylkill County3
- Chester County3
- Crawford County3
- Butler County3
- Lawrence County3
- Cameron County3
- Elk County3
- McKean County3
- Warren County3
- Potter County3
- Wyoming County3
- Mifflin County2
- Sullivan County2
- Allegheny County2
- Beaver County2
22 more counties
- Blair County2
- Somerset County2
- Clinton County2
- Snyder County2
- Mercer County2
- Luzerne County2
- Venango County2
- Lackawanna County2
- Union County1
- Tioga County1
- Cambria County1
- Pike County1
- Fayette County1
- Centre County1
- Armstrong County1
- Clarion County1
- Forest County1
- Jefferson County1
- Susquehanna County1
- Wayne County1
- Erie County1
- Washington County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.