Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Pennsylvania, March 2020
29 severe thunderstorm warnings in March 2020. 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 March 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 29
- Busiest day
- March 28, 202017 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 3, 8:39 PM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more | 51 min |
| Mar 3, 9:09 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 51 min |
| Mar 20, 1:25 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 38 min |
| Mar 20, 1:42 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence | 33 min |
| Mar 20, 1:49 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 26 min |
| Mar 20, 2:15 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean | 45 min |
| Mar 20, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Indiana, Jefferson | 45 min |
| Mar 20, 2:20 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 40 min |
| Mar 20, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 28 min |
| Mar 28, 10:22 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 38 min |
| Mar 28, 12:06 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 24 min |
| Mar 28, 1:49 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 26 min |
| Mar 28, 2:25 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 35 min |
| Mar 28, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 35 min |
| Mar 28, 3:06 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Jefferson | 24 min |
| Mar 28, 3:18 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 42 min |
| Mar 28, 3:31 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 29 min |
| Mar 28, 3:56 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 49 min |
| Mar 28, 4:13 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 47 min |
| Mar 28, 4:14 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 46 min |
| Mar 28, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Indiana, Jefferson | 50 min |
| Mar 28, 4:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 48 min |
| Mar 28, 4:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 51 min |
| Mar 28, 5:04 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 41 min |
| Mar 28, 5:30 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 30 min |
| Mar 28, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 37 min |
| Mar 28, 10:58 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 35 min |
| Mar 29, 1:18 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 25 min |
| Mar 29, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 49 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Butler County11
- Armstrong County8
- Clarion County7
- Washington County7
- Westmoreland County6
- Allegheny County6
- Beaver County5
- Jefferson County4
- Lawrence County4
- Fayette County4
- Greene County4
- Venango County3
- Cameron County3
- Elk County3
- Indiana County3
- Mercer County3
- Bucks County2
- Chester County2
- Delaware County2
- Montgomery County2
- McKean County2
- Berks County1
- Carbon County1
- Lehigh County1
- Monroe County1
- Northampton County1
- Philadelphia County1
- Forest County1
- Clearfield County1
- Somerset County1
- Erie County1
- Potter County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.