Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2024
Severe Thunderstorm Warnings in Pennsylvania, August 2024
140 severe thunderstorm warnings in August 2024. 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 2024. Tap one for its archive.
- Severe Thunderstorm Warnings
- 140
- Busiest day
- August 6, 202454 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 |
|---|---|---|---|---|
| Jul 31, 8:04 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 41 min |
| Aug 2, 2:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 52 min |
| Aug 2, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 45 min |
| Aug 2, 3:08 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 52 min |
| Aug 2, 3:44 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 61 min |
| Aug 2, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery | 42 min |
| Aug 2, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 24 min |
| Aug 2, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 39 min |
| Aug 2, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 48 min |
| Aug 3, 1:01 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Huntingdon, Perry | 44 min |
| Aug 3, 1:53 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne | 67 min |
| Aug 3, 2:22 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 38 min |
| Aug 3, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 65 min |
| Aug 3, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 45 min |
| Aug 3, 3:53 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 37 min |
| Aug 3, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| Aug 3, 5:01 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 44 min |
| Aug 3, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 97 min |
| Aug 3, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 59 min |
| Aug 3, 6:49 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 56 min |
| Aug 5, 4:11 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 49 min |
| Aug 5, 4:21 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 24 min |
| Aug 5, 4:34 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 56 min |
| Aug 5, 4:57 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 33 min |
| Aug 5, 5:17 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 28 min |
| Aug 5, 5:26 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 64 min |
| Aug 5, 5:30 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 60 min |
| Aug 5, 6:13 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 15 min |
| Aug 5, 6:26 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna | 34 min |
| Aug 5, 6:36 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 24 min |
| Aug 5, 7:00 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wayne | 30 min |
| Aug 6, 10:48 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 42 min |
| Aug 6, 11:13 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 47 min |
| Aug 6, 11:59 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Mercer, Venango | 31 min |
| Aug 6, 12:16 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 29 min |
| Aug 6, 12:18 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Venango | 42 min |
| Aug 6, 12:30 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 45 min |
| Aug 6, 12:41 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 49 min |
| Aug 6, 12:42 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 33 min |
| Aug 6, 12:52 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 53 min |
| Aug 6, 1:11 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 19 min |
| Aug 6, 1:12 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 33 min |
| Aug 6, 1:15 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 31 min |
| Aug 6, 1:17 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 28 min |
| Aug 6, 1:21 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 39 min |
| Aug 6, 1:36 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 24 min |
| Aug 6, 1:37 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Jefferson | 53 min |
| Aug 6, 1:40 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 35 min |
| Aug 6, 1:45 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 26 min |
| Aug 6, 2:00 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Mercer, Venango | 45 min |
| Aug 6, 2:03 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 57 min |
| Aug 6, 2:13 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 32 min |
| Aug 6, 2:14 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 31 min |
| Aug 6, 2:27 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 18 min |
| Aug 6, 2:39 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 51 min |
| Aug 6, 2:41 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 34 min |
| Aug 6, 2:44 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 61 min |
| Aug 6, 2:49 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 41 min |
| Aug 6, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 35 min |
| Aug 6, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 41 min |
| Aug 6, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 37 min |
| Aug 6, 3:24 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 66 min |
| Aug 6, 3:29 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 20 min |
| Aug 6, 3:52 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 38 min |
| Aug 6, 4:00 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Aug 6, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 39 min |
| Aug 6, 4:33 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Perry, Snyder | 57 min |
| Aug 6, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 40 min |
| Aug 6, 4:52 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Franklin, Huntingdon, Juniata, Mifflin and 1 more | 38 min |
| Aug 6, 5:05 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 25 min |
| Aug 6, 5:09 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 36 min |
| Aug 6, 5:13 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 77 min |
| Aug 6, 5:23 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more | 37 min |
| Aug 6, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Mercer | 49 min |
| Aug 6, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Franklin, Fulton, Huntingdon, Juniata and 1 more | 43 min |
| Aug 6, 5:48 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 42 min |
| Aug 6, 5:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 51 min |
| Aug 6, 5:59 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Clarion, Lawrence, Mercer | 46 min |
| Aug 6, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 46 min |
| Aug 6, 6:29 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more | 61 min |
| Aug 6, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 45 min |
| Aug 6, 6:39 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Clarion, Indiana, Jefferson and 2 more | 66 min |
| Aug 6, 7:06 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 39 min |
| Aug 6, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 48 min |
| Aug 6, 7:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Indiana, Washington, Westmoreland | 48 min |
| Aug 17, 2:37 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 38 min |
| Aug 17, 3:10 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 50 min |
| Aug 17, 3:22 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 53 min |
| Aug 17, 4:07 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 68 min |
| Aug 17, 4:19 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 41 min |
| Aug 17, 4:39 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 51 min |
| Aug 17, 4:42 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 48 min |
| Aug 17, 4:52 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Venango | 38 min |
| Aug 17, 5:09 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 51 min |
| Aug 17, 5:10 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 50 min |
| Aug 17, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 45 min |
| Aug 17, 5:49 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 26 min |
| Aug 17, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 35 min |
| Aug 17, 7:41 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 64 min |
| Aug 18, 2:09 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Perry, Snyder | 51 min |
| Aug 18, 2:47 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 28 min |
| Aug 18, 3:24 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 19 min |
| Aug 18, 3:34 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 41 min |
| Aug 18, 3:36 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne | 39 min |
| Aug 18, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 42 min |
| Aug 18, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 41 min |
| Aug 18, 4:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Montgomery, Northampton | 28 min |
| Aug 18, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 34 min |
| Aug 18, 5:21 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 39 min |
| Aug 18, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 58 min |
| Aug 18, 7:32 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 58 min |
| Aug 18, 8:34 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 39 min |
| Aug 28, 2:32 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 43 min |
| Aug 28, 6:06 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 39 min |
| Aug 29, 2:38 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 37 min |
| Aug 29, 2:59 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 46 min |
| Aug 29, 3:26 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 49 min |
| Aug 29, 3:31 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 44 min |
| Aug 29, 3:43 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 47 min |
| Aug 29, 3:53 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 33 min |
| Aug 29, 4:08 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon | 52 min |
| Aug 29, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 48 min |
| Aug 29, 4:22 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 38 min |
| Aug 29, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 46 min |
| Aug 29, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 32 min |
| Aug 29, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 46 min |
| Aug 29, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 50 min |
| Aug 29, 7:39 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Union | 51 min |
| Aug 29, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Mifflin, Snyder, Union | 47 min |
| Aug 29, 9:42 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 48 min |
| Aug 30, 4:16 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Aug 30, 5:36 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 39 min |
| Aug 30, 6:23 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 25 min |
| Aug 31, 12:40 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 50 min |
| Aug 31, 1:50 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 25 min |
| Aug 31, 2:02 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 43 min |
| Aug 31, 2:31 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 44 min |
| Aug 31, 2:34 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 41 min |
| Aug 31, 3:28 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 62 min |
| Aug 31, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton | 77 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mercer County16
- Butler County16
- Armstrong County15
- Allegheny County15
- Venango County13
- Washington County12
- Susquehanna County11
- Clarion County11
- Beaver County11
- Westmoreland County11
- Lawrence County10
- Indiana County10
- Bucks County9
- Chester County8
- Huntingdon County8
- Perry County7
- Crawford County7
- Jefferson County7
- Centre County7
- Montgomery County6
- Delaware County6
- Monroe County6
- Greene County6
- Philadelphia County5
- Lancaster County5
- Forest County5
- Juniata County5
- Bedford County5
- Fayette County5
- Berks County4
- Lehigh County4
- Cumberland County4
- Franklin County4
- Lackawanna County4
- Wayne County4
- York County4
- Blair County4
- Snyder County4
- Erie County4
- Carbon County3
19 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.