Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2018
Severe Thunderstorm Warnings in Pennsylvania, August 2018
64 severe thunderstorm warnings in August 2018. 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 2018. Tap one for its archive.
- Severe Thunderstorm Warnings
- 64
- Busiest day
- August 13, 201811 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, 10:40 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 37 min |
| Aug 1, 11:35 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 20 min |
| Aug 3, 1:27 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 48 min |
| Aug 3, 2:52 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 38 min |
| Aug 3, 3:26 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 49 min |
| Aug 4, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 34 min |
| Aug 5, 12:49 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 12 min |
| Aug 5, 2:45 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 45 min |
| Aug 5, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 27 min |
| Aug 7, 12:58 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 47 min |
| Aug 7, 1:52 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Union | 53 min |
| Aug 7, 1:53 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne | 52 min |
| Aug 7, 2:43 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 77 min |
| Aug 7, 2:55 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Wyoming | 50 min |
| Aug 7, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 13 min |
| Aug 7, 4:20 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 39 min |
| Aug 7, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 31 min |
| Aug 7, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 35 min |
| Aug 8, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 36 min |
| Aug 11, 1:51 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 39 min |
| Aug 11, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 29 min |
| Aug 12, 6:09 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 20 min |
| Aug 13, 1:08 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 22 min |
| Aug 13, 1:23 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 37 min |
| Aug 13, 1:30 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 30 min |
| Aug 13, 1:40 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 13 min |
| Aug 13, 1:48 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 27 min |
| Aug 13, 2:19 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 26 min |
| Aug 13, 3:15 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 30 min |
| Aug 13, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 27 min |
| Aug 13, 3:37 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 23 min |
| Aug 13, 7:17 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 58 min |
| Aug 13, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 48 min |
| Aug 13, 8:51 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 54 min |
| Aug 13, 9:00 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 60 min |
| Aug 13, 9:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 44 min |
| Aug 17, 3:46 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 59 min |
| Aug 17, 3:49 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Aug 17, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 43 min |
| Aug 17, 5:59 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 31 min |
| Aug 17, 6:19 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 41 min |
| Aug 17, 6:22 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 53 min |
| Aug 17, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 38 min |
| Aug 17, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 52 min |
| Aug 17, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 51 min |
| Aug 17, 8:17 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 43 min |
| Aug 21, 1:52 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 38 min |
| Aug 21, 2:04 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 56 min |
| Aug 21, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 59 min |
| Aug 21, 2:22 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 53 min |
| Aug 21, 3:11 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 34 min |
| Aug 21, 3:12 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Fulton, Somerset | 63 min |
| Aug 21, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton, Huntingdon | 45 min |
| Aug 21, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 54 min |
| Aug 21, 7:24 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 66 min |
| Aug 29, 5:18 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 42 min |
| Aug 29, 5:24 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 51 min |
| Aug 29, 5:51 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 24 min |
| Aug 29, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 43 min |
| Aug 29, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 35 min |
| Aug 29, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 77 min |
| Aug 29, 6:52 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 53 min |
| Aug 29, 6:52 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 53 min |
| Aug 29, 6:58 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 17 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County8
- Allegheny County8
- Westmoreland County6
- Montgomery County5
- Northampton County5
- Chester County5
- Somerset County5
- Wayne County4
- Washington County4
- Franklin County4
- Monroe County4
- Berks County3
- Lehigh County3
- Beaver County3
- Fayette County3
- Schuylkill County3
- Lancaster County3
- Venango County3
- Warren County3
- McKean County3
- Delaware County2
- Butler County2
- Columbia County2
- Montour County2
- Northumberland County2
- Lackawanna County2
- Susquehanna County2
- Dauphin County2
- Lebanon County2
- Philadelphia County2
- Mercer County2
- Carbon County2
- Jefferson County2
- Bedford County2
- Fulton County2
- Clarion County2
- Forest County2
- Armstrong County1
- Union County1
- Wyoming County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.