Alert archive / Pennsylvania / Mesoscale Discussions / 2012
Mesoscale Discussions in Pennsylvania, December 2012
5 mesoscale discussions in December 2012. 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 December 2012. Tap one for its archive.
- Mesoscale Discussions
- 5
- Busiest day
- December 26, 20123 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 |
|---|---|---|---|---|
| Dec 7, 3:44 AM EST | Mesoscale Discussion | SPC | Bradford, Cameron, Centre, Clearfield, Clinton, Columbia and 15 more | 6 hr |
| Dec 24, 10:34 AM EST | Mesoscale Discussion | SPC | Fayette, Greene | 2 hr |
| Dec 26, 11:40 AM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Centre and 17 more | 6 hr |
| Dec 26, 12:48 PM EST | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Bradford, Bucks, Carbon and 27 more | 6 hr |
| Dec 26, 2:14 PM EST | Mesoscale Discussion | SPC | Bradford, Susquehanna, Tioga, Wayne | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bradford County3
- Tioga County3
- Cameron County2
- Centre County2
- Clearfield County2
- Clinton County2
- Columbia County2
- Cumberland County2
- Dauphin County2
- Huntingdon County2
- Juniata County2
- Lycoming County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Perry County2
- Potter County2
- Schuylkill County2
- Snyder County2
- Sullivan County2
- Union County2
- Fayette County1
- Greene County1
- Allegheny County1
- Armstrong County1
- Beaver County1
- Butler County1
- Clarion County1
- Crawford County1
- Elk County1
- Forest County1
- Indiana County1
- Jefferson County1
- Lawrence County1
- McKean County1
- Mercer County1
- Venango County1
- Warren County1
- Adams County1
- Bedford County1
20 more counties
- Berks County1
- Bucks County1
- Carbon County1
- Chester County1
- Franklin County1
- Fulton County1
- Lackawanna County1
- Lancaster County1
- Lebanon County1
- Lehigh County1
- Luzerne County1
- Monroe County1
- Montgomery County1
- Northampton County1
- Pike County1
- Somerset County1
- Wyoming County1
- York County1
- Susquehanna County1
- Wayne County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.