Alert archive / Pennsylvania / Mesoscale Discussions / 2007
Mesoscale Discussions in Pennsylvania, September 2007
7 mesoscale discussions in September 2007. 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 September 2007. Tap one for its archive.
- Mesoscale Discussions
- 7
- Busiest day
- September 27, 20073 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 |
|---|---|---|---|---|
| Sep 11, 4:58 AM EDT | Mesoscale Discussion | SPC | Erie | 3 hr |
| Sep 11, 7:11 PM EDT | Mesoscale Discussion | SPC | Susquehanna, Wayne, Wyoming | 64 min |
| Sep 26, 12:36 PM EDT | Mesoscale Discussion | SPC | Armstrong, Bradford, Cameron, Clarion, Clearfield, Clinton and 11 more | 84 min |
| Sep 27, 12:43 PM EDT | Mesoscale Discussion | SPC | Bradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 11 more | 2 hr |
| Sep 27, 1:00 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Cumberland, Franklin, Fulton, Huntingdon and 2 more | 2 hr |
| Sep 27, 7:01 PM EDT | Mesoscale Discussion | SPC | Adams, Bradford, Carbon, Columbia, Cumberland, Dauphin and 18 more | 89 min |
| Sep 28, 11:28 AM EDT | Mesoscale Discussion | SPC | Bradford, Lackawanna, Potter, Sullivan, Susquehanna, Tioga and 2 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Susquehanna County5
- Wayne County4
- Wyoming County4
- Bradford County4
- Lycoming County3
- Tioga County3
- Lackawanna County3
- Sullivan County3
- Potter County2
- Carbon County2
- Columbia County2
- Luzerne County2
- Monroe County2
- Montour County2
- Northumberland County2
- Pike County2
- Schuylkill County2
- Snyder County2
- Union County2
- Adams County2
- Cumberland County2
- Juniata County2
- Perry County2
- Erie County1
- Armstrong County1
- Cameron County1
- Clarion County1
- Clearfield County1
- Clinton County1
- Elk County1
- Forest County1
- Indiana County1
- Jefferson County1
- McKean County1
- Venango County1
- Warren County1
- Bedford County1
- Franklin County1
- Fulton County1
- Huntingdon County1
2 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.