Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2025
Severe Thunderstorm Warnings in Pennsylvania, August 2025
14 severe thunderstorm warnings in August 2025. 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 2025. Tap one for its archive.
- Severe Thunderstorm Warnings
- 14
- Busiest day
- August 17, 20257 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 13, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 43 min |
| Aug 13, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 41 min |
| Aug 13, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 49 min |
| Aug 16, 1:38 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 37 min |
| Aug 17, 6:19 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 41 min |
| Aug 17, 1:53 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 37 min |
| Aug 17, 2:00 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 60 min |
| Aug 17, 2:46 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 44 min |
| Aug 17, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 54 min |
| Aug 17, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 31 min |
| Aug 17, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 46 min |
| Aug 24, 4:45 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 45 min |
| Aug 24, 7:17 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 43 min |
| Aug 24, 10:16 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Union | 44 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lancaster County3
- Westmoreland County2
- Fayette County2
- Lycoming County2
- Lebanon County1
- Bucks County1
- Lehigh County1
- Northampton County1
- Chester County1
- Delaware County1
- Cumberland County1
- Franklin County1
- Perry County1
- Erie County1
- Cambria County1
- Somerset County1
- Greene County1
- Centre County1
- Clinton County1
- Union County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.