Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2026
Severe Thunderstorm Warnings in Pennsylvania, April 2026
44 severe thunderstorm warnings in April 2026. 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 April 2026. Tap one for its archive.
- Severe Thunderstorm Warnings
- 44
- Busiest day
- April 16, 202614 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 |
|---|---|---|---|---|
| Mar 31, 8:18 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer, Venango | 42 min |
| Mar 31, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 47 min |
| Mar 31, 8:57 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more | 67 min |
| Mar 31, 9:03 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 34 min |
| Mar 31, 9:49 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield, Elk | 41 min |
| Mar 31, 9:59 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 19 min |
| Mar 31, 11:41 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 49 min |
| Apr 1, 3:18 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 34 min |
| Apr 3, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 33 min |
| Apr 4, 6:56 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 49 min |
| Apr 14, 12:36 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 24 min |
| Apr 14, 2:32 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 43 min |
| Apr 14, 3:04 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 56 min |
| Apr 14, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 40 min |
| Apr 14, 4:40 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 50 min |
| Apr 14, 5:59 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 46 min |
| Apr 14, 6:17 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 13 min |
| Apr 14, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 46 min |
| Apr 14, 7:07 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 53 min |
| Apr 14, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton | 40 min |
| Apr 14, 7:57 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne, Wyoming | 63 min |
| Apr 15, 5:10 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 20 min |
| Apr 15, 5:37 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 38 min |
| Apr 15, 5:45 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 45 min |
| Apr 15, 6:12 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 48 min |
| Apr 15, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 62 min |
| Apr 15, 6:56 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson, Venango | 43 min |
| Apr 15, 7:08 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 36 min |
| Apr 15, 7:33 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 57 min |
| Apr 15, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 50 min |
| Apr 15, 8:11 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 64 min |
| Apr 15, 8:23 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 37 min |
| Apr 15, 8:44 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 61 min |
| Apr 15, 9:04 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Apr 15, 10:49 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Susquehanna, Wyoming | 43 min |
| Apr 15, 10:55 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 35 min |
| Apr 15, 11:53 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Wayne | 44 min |
| Apr 16, 3:34 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 41 min |
| Apr 16, 4:08 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 43 min |
| Apr 16, 4:08 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 42 min |
| Apr 16, 4:40 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 46 min |
| Apr 16, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Venango | 24 min |
| Apr 16, 4:48 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 27 min |
| Apr 16, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 22 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mercer County8
- Venango County8
- McKean County5
- Potter County5
- Clarion County5
- Elk County5
- Butler County4
- Wayne County4
- Lawrence County3
- Forest County3
- Lycoming County3
- Susquehanna County3
- Lackawanna County3
- Warren County3
- Bradford County3
- Armstrong County2
- Jefferson County2
- Clearfield County2
- Allegheny County2
- Washington County2
- Greene County2
- Tioga County2
- Sullivan County2
- Crawford County2
- Erie County2
- Beaver County2
- Bedford County2
- Pike County2
- Wyoming County2
- Cameron County2
- Westmoreland County1
- Clinton County1
- Schuylkill County1
- Blair County1
- Cambria County1
- Somerset County1
- Franklin County1
- Fulton County1
- Columbia County1
Nearby
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.