Alert archive / Pennsylvania / Winter Storm Warnings
Winter Storm Warnings in Pennsylvania, 2021
15 winter storm warnings in 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 winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Winter Storm Warnings
- 15
- Busiest month
- January8 winter storm warnings
- Busiest day
- February 14, 20214 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 |
|---|---|---|---|---|
| Jan 3, 10:03 PM EST | Winter Storm Warning | BGM | Bradford, Susquehanna, Wayne, Wyoming | 4 hr |
| Jan 25, 3:29 AM EST | Winter Storm Warning | CTP | Bedford, Somerset | 33 hr |
| Jan 25, 3:47 AM EST | Winter Storm Warning | PBZ | Fayette, Westmoreland | 30 hr |
| Jan 30, 3:24 PM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 20 more | 13 hr |
| Jan 30, 3:34 PM EST | Winter Storm Warning | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 4 days |
| Jan 30, 3:44 PM EST | Winter Storm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 72 hr |
| Jan 31, 4:52 AM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 21 more | 48 hr |
| Jan 31, 4:42 PM EST | Winter Storm Warning | PBZ | Fayette, Westmoreland | 41 hr |
| Feb 6, 3:23 AM EST | Winter Storm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 36 hr |
| Feb 14, 4:07 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 54 hr |
| Feb 14, 1:49 PM EST | Winter Storm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 7 more | 40 hr |
| Feb 14, 3:46 PM EST | Winter Storm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 5 more | 38 hr |
| Feb 14, 4:15 PM EST | Winter Storm Warning | BGM | Bradford | 36 hr |
| Feb 17, 2:39 PM EST | Winter Storm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Lancaster and 4 more | 22 hr |
| Feb 17, 3:43 PM EST | Winter Storm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bradford County3
- Bedford County3
- Somerset County3
- Westmoreland County3
- Adams County3
- Centre County3
- Clinton County3
- Cumberland County3
- Dauphin County3
- Franklin County3
- Fulton County3
- Lancaster County3
- Lebanon County3
- Lycoming County3
- Perry County3
- Schuylkill County3
- Sullivan County3
- York County3
- Bucks County3
- Chester County3
- Delaware County3
- Montgomery County3
- Philadelphia County3
- Susquehanna County2
- Wayne County2
- Wyoming County2
- Fayette County2
- Blair County2
- Cambria County2
- Columbia County2
- Huntingdon County2
- Juniata County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Snyder County2
- Union County2
- Berks County2
- Carbon County2
- Lehigh County2
26 more counties
- Monroe County2
- Northampton County2
- Tioga County2
- Lackawanna County1
- Luzerne County1
- Pike County1
- Crawford County1
- Erie County1
- Allegheny County1
- Armstrong County1
- Beaver County1
- Butler County1
- Clarion County1
- Forest County1
- Greene County1
- Jefferson County1
- Lawrence County1
- Mercer County1
- Venango County1
- Washington County1
- Cameron County1
- Clearfield County1
- Elk County1
- McKean County1
- Potter County1
- Warren County1
The busiest days
Days with the most alerts issued, by UTC date.
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.