Alert archive / Pennsylvania / Red Flag Warnings
Red Flag Warnings in Pennsylvania, 2021
2 red flag 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Red Flag Warnings
- 2
- Busiest month
- March2 red flag warnings
- Busiest day
- March 14, 20212 red flag 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 |
|---|---|---|---|---|
| Mar 14, 4:19 AM EDT | Red Flag Warning | CTP | Adams, Bedford, Columbia, Cumberland, Dauphin, Franklin and 12 more | 18 hr |
| Mar 14, 4:22 AM EDT | Red Flag Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 37 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County1
- Bedford County1
- Columbia County1
- Cumberland County1
- Dauphin County1
- Franklin County1
- Fulton County1
- Huntingdon County1
- Juniata County1
- Lancaster County1
- Lebanon County1
- Mifflin County1
- Montour County1
- Northumberland County1
- Perry County1
- Snyder County1
- Union County1
- York County1
- Berks County1
- Bucks County1
- Chester County1
- Delaware County1
- Lehigh County1
- Montgomery County1
- Northampton County1
- Philadelphia 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.