Alert archive / Pennsylvania / Freeze Warnings / 2021
Freeze Warnings in Pennsylvania, April 2021
10 freeze warnings in April 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in April 2021. Tap one for its archive.
- Freeze Warnings
- 10
- Busiest day
- April 21, 20213 freeze 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 |
|---|---|---|---|---|
| Apr 21, 2:04 AM EDT | Freeze Warning | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 32 hr |
| Apr 21, 3:26 AM EDT | Freeze Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 30 hr |
| Apr 21, 7:07 AM EDT | Freeze Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 10 more | 26 hr |
| Apr 22, 2:39 AM EDT | Freeze Warning | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 30 hr |
| Apr 22, 1:06 PM EDT | Freeze Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 10 more | 20 hr |
| Apr 22, 2:31 PM EDT | Freeze Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 17 hr |
| Apr 25, 4:33 PM EDT | Freeze Warning | PBZ | Armstrong, Butler, Fayette, Lawrence, Westmoreland | 15 hr |
| Apr 30, 12:59 PM EDT | Freeze Warning | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 4 more | 20 hr |
| Apr 30, 2:26 PM EDT | Freeze Warning | CTP | Cambria, Centre, Clearfield, Somerset, Warren | 18 hr |
| Apr 30, 2:55 PM EDT | Freeze Warning | CLE | Crawford, Erie | 17 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fayette County4
- Westmoreland County4
- Allegheny County2
- Beaver County2
- Greene County2
- Washington County2
- Berks County2
- Bucks County2
- Chester County2
- Lehigh County2
- Montgomery County2
- Northampton County2
- Adams County2
- Cumberland County2
- Dauphin County2
- Franklin County2
- Fulton County2
- Huntingdon County2
- Juniata County2
- Lancaster County2
- Lebanon County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Perry County2
- Snyder County2
- Union County2
- York County2
- Armstrong County2
- Butler County2
- Lawrence County2
- Clarion County1
- Forest County1
- Jefferson County1
- Mercer County1
- Venango County1
- Cambria County1
- Centre County1
- Clearfield County1
- Somerset County1
3 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. Warning verification from the Mesonet's Cow. Rebuilt daily.