Alert archive / Pennsylvania / Mesoscale Discussions / 2012
Mesoscale Discussions in Pennsylvania, August 2012
12 mesoscale discussions in August 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 August 2012. Tap one for its archive.
- Mesoscale Discussions
- 12
- Busiest day
- August 5, 20124 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 |
|---|---|---|---|---|
| Aug 4, 10:46 PM EDT | Mesoscale Discussion | SPC | Mercer | 119 min |
| Aug 5, 12:06 PM EDT | Mesoscale Discussion | SPC | Cameron, Clarion, Clearfield, Crawford, Elk, Forest and 5 more | 84 min |
| Aug 5, 2:49 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Bucks, Carbon, Centre and 34 more | 86 min |
| Aug 5, 6:38 PM EDT | Mesoscale Discussion | SPC | Philadelphia | 2 hr |
| Aug 9, 12:46 PM EDT | Mesoscale Discussion | SPC | Bradford, Cameron, Lycoming, Potter, Sullivan, Susquehanna and 2 more | 89 min |
| Aug 9, 4:18 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Greene, Washington | 57 min |
| Aug 10, 8:21 AM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 4 more | 2 hr |
| Aug 10, 12:49 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 16 more | 86 min |
| Aug 10, 3:31 PM EDT | Mesoscale Discussion | SPC | Adams, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 2 more | 89 min |
| Aug 10, 7:31 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Chester, Cumberland, Delaware, Lancaster and 2 more | 119 min |
| Aug 14, 2:07 PM EDT | Mesoscale Discussion | SPC | Adams, Cumberland, Franklin, Fulton, York | 113 min |
| Aug 14, 9:57 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Carbon, Chester, Columbia, Cumberland and 16 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County5
- Cumberland County5
- Chester County4
- York County4
- Cameron County3
- Berks County3
- Delaware County3
- Franklin County3
- Fulton County3
- Lancaster County3
- Montgomery County3
- Perry County3
- Philadelphia County3
- Sullivan County3
- Susquehanna County3
- Wayne County3
- Wyoming County3
- Mercer County2
- Clarion County2
- Clearfield County2
- Crawford County2
- Elk County2
- Forest County2
- Jefferson County2
- McKean County2
- Potter County2
- Venango County2
- Warren County2
- Bradford County2
- Bucks County2
- Carbon County2
- Columbia County2
- Dauphin County2
- Huntingdon County2
- Juniata County2
- Lackawanna County2
- Lebanon County2
- Lehigh County2
- Luzerne County2
- Lycoming County2
23 more counties
- Mifflin County2
- Monroe County2
- Montour County2
- Northampton County2
- Northumberland County2
- Pike County2
- Schuylkill County2
- Snyder County2
- Tioga County2
- Union County2
- Allegheny County2
- Beaver County2
- Greene County2
- Washington County2
- Centre County1
- Clinton County1
- Armstrong County1
- Butler County1
- Erie County1
- Fayette County1
- Indiana County1
- Lawrence County1
- Westmoreland 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.