Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2021
Severe Thunderstorm Warnings in Pennsylvania, May 2021
38 severe thunderstorm warnings in May 2021. 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 May 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 38
- Busiest day
- May 26, 202135 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 |
|---|---|---|---|---|
| May 26, 1:13 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 17 min |
| May 26, 1:23 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield, Elk | 41 min |
| May 26, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry, Snyder | 44 min |
| May 26, 2:24 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 51 min |
| May 26, 2:31 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 39 min |
| May 26, 2:33 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more | 57 min |
| May 26, 2:42 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 50 min |
| May 26, 2:43 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 32 min |
| May 26, 2:46 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 20 min |
| May 26, 3:09 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 51 min |
| May 26, 3:23 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 82 min |
| May 26, 3:35 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 44 min |
| May 26, 3:39 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 56 min |
| May 26, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon | 54 min |
| May 26, 4:09 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 36 min |
| May 26, 4:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 65 min |
| May 26, 4:21 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 26 min |
| May 26, 4:23 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 22 min |
| May 26, 4:36 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 24 min |
| May 26, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 44 min |
| May 26, 4:47 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 43 min |
| May 26, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 38 min |
| May 26, 5:17 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 43 min |
| May 26, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia | 48 min |
| May 26, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 41 min |
| May 26, 5:37 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 23 min |
| May 26, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 53 min |
| May 26, 5:47 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 28 min |
| May 26, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 67 min |
| May 26, 6:17 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 12 min |
| May 26, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 15 min |
| May 26, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 37 min |
| May 26, 6:46 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wyoming | 25 min |
| May 26, 6:52 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 38 min |
| May 26, 6:53 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 37 min |
| May 26, 8:10 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry, Snyder | 35 min |
| May 26, 8:29 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland | 32 min |
| May 26, 9:26 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 34 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Perry County5
- Dauphin County5
- Berks County5
- Juniata County4
- Snyder County4
- Chester County4
- Montgomery County4
- Lebanon County3
- Schuylkill County3
- Lancaster County3
- Susquehanna County3
- Bucks County3
- Northumberland County2
- Cumberland County2
- Luzerne County2
- Adams County2
- Lackawanna County2
- Wyoming County2
- Lehigh County2
- Westmoreland County2
- Wayne County2
- Northampton County2
- Delaware County2
- Philadelphia County2
- Jefferson County1
- Clearfield County1
- Elk County1
- Mercer County1
- Columbia County1
- Lycoming County1
- Sullivan County1
- Franklin County1
- Mifflin County1
- Fayette County1
- Beaver County1
- Washington County1
- York County1
- Bradford County1
- Indiana County1
- Cambria County1
1 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.