Alert archive / Pennsylvania / Winter Storm Warnings
Winter Storm Warnings in Pennsylvania, 2020
12 winter storm warnings in 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 winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Winter Storm Warnings
- 12
- Busiest month
- December7 winter storm warnings
- Busiest day
- December 15, 20204 winter storm warnings
Over time
By month
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 |
|---|---|---|---|---|
| Feb 6, 3:21 PM EST | Winter Storm Warning | BGM | Bradford, Susquehanna | 27 hr |
| Feb 7, 4:11 AM EST | Winter Storm Warning | CTP | Lycoming, Sullivan, Tioga | 10 hr |
| Nov 30, 2:51 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 52 hr |
| Nov 30, 3:18 AM EST | Winter Storm Warning | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 4 more | 48 hr |
| Nov 30, 1:08 PM EST | Winter Storm Warning | CTP | Warren | 42 hr |
| Dec 15, 3:18 AM EST | Winter Storm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 51 hr |
| Dec 15, 3:46 AM EST | Winter Storm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 5 more | 49 hr |
| Dec 15, 3:53 AM EST | Winter Storm Warning | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 54 hr |
| Dec 15, 4:30 AM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 51 hr |
| Dec 23, 2:54 PM EST | Winter Storm Warning | CLE | Crawford, Erie | 61 hr |
| Dec 24, 2:53 AM EST | Winter Storm Warning | CTP | Warren | 40 hr |
| Dec 24, 3:48 AM EST | Winter Storm Warning | PBZ | Beaver, Fayette, Lawrence, Mercer, Westmoreland | 33 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fayette County3
- Westmoreland County3
- Bradford County2
- Susquehanna County2
- Lycoming County2
- Sullivan County2
- Tioga County2
- Crawford County2
- Erie County2
- Armstrong County2
- Butler County2
- Clarion County2
- Forest County2
- Jefferson County2
- Lawrence County2
- Mercer County2
- Warren County2
- Beaver County2
- Venango County1
- Berks County1
- Bucks County1
- Carbon County1
- Chester County1
- Delaware County1
- Lehigh County1
- Monroe County1
- Montgomery County1
- Northampton County1
- Philadelphia County1
- Allegheny County1
- Greene County1
- Washington County1
- Lackawanna County1
- Luzerne County1
- Pike County1
- Wayne County1
- Wyoming County1
- Adams County1
- Bedford County1
- Blair County1
26 more counties
- Cambria County1
- Cameron County1
- Centre County1
- Clearfield County1
- Clinton County1
- Columbia County1
- Cumberland County1
- Dauphin County1
- Elk County1
- Franklin County1
- Fulton County1
- Huntingdon County1
- Juniata County1
- Lancaster County1
- Lebanon County1
- McKean County1
- Mifflin County1
- Montour County1
- Northumberland County1
- Perry County1
- Potter County1
- Schuylkill County1
- Snyder County1
- Somerset County1
- Union County1
- York County1
The busiest days
Days with the most alerts issued, by UTC date.
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. Rebuilt daily.