Alert archive / Pennsylvania / Mesoscale Discussions / 2017
Mesoscale Discussions in Pennsylvania, February 2017
6 mesoscale discussions in February 2017. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in February 2017. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- February 25, 20174 mesoscale discussions
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 |
|---|---|---|---|---|
| Feb 8, 9:40 PM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 17 more | 4 hr |
| Feb 9, 4:55 AM EST | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Columbia, Delaware and 16 more | 6 hr |
| Feb 24, 8:49 PM EST | Mesoscale Discussion | SPC | Beaver, Crawford, Lawrence, Mercer, Washington | 116 min |
| Feb 25, 12:16 PM EST | Mesoscale Discussion | SPC | Berks, Bradford, Bucks, Carbon, Chester, Columbia and 19 more | 89 min |
| Feb 25, 4:26 PM EST | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 2 more | 94 min |
| Feb 25, 4:44 PM EST | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 3 more | 91 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Berks County4
- Bucks County4
- Lehigh County4
- Montgomery County4
- Carbon County3
- Chester County3
- Delaware County3
- Monroe County3
- Northampton County3
- Philadelphia County3
- Pike County3
- Wayne County3
- Beaver County2
- Lawrence County2
- Mercer County2
- Washington County2
- Columbia County2
- Lackawanna County2
- Lebanon County2
- Luzerne County2
- Montour County2
- Northumberland County2
- Schuylkill County2
- Sullivan County2
- Susquehanna County2
- Wyoming County2
- Lancaster County2
- Allegheny County1
- Armstrong County1
- Blair County1
- Butler County1
- Cambria County1
- Cameron County1
- Centre County1
- Clarion County1
- Clearfield County1
- Elk County1
- Fayette County1
- Forest County1
- Greene County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.