Alert archive / Pennsylvania / Mesoscale Discussions / 2003
Mesoscale Discussions in Pennsylvania, September 2003
6 mesoscale discussions in September 2003. 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 2003. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- September 27, 20035 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 1, 7:17 PM EDT | Mesoscale Discussion | SPC | Adams, York | 88 min |
| Sep 27, 12:06 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Crawford, Lawrence and 3 more | 84 min |
| Sep 27, 3:37 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 17 more | 113 min |
| Sep 27, 5:15 AM EDT | Mesoscale Discussion | SPC | Beaver, Crawford, Lawrence, Mercer, Venango, Warren | 60 min |
| Sep 27, 2:22 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Bradford, Centre, Clinton, Columbia and 16 more | 113 min |
| Sep 27, 6:52 PM EDT | Mesoscale Discussion | SPC | Bedford, Blair, Centre, Clinton, Franklin, Fulton and 5 more | 53 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Beaver County3
- Crawford County3
- Lawrence County3
- Mercer County3
- Venango County3
- Adams County2
- Allegheny County2
- Armstrong County2
- Butler County2
- Washington County2
- Potter County2
- Warren County2
- Bedford County2
- Centre County2
- Clinton County2
- Franklin County2
- Fulton County2
- Huntingdon County2
- Juniata County2
- Lycoming County2
- Mifflin County2
- Tioga County2
- York County1
- Cambria County1
- Cameron County1
- Clarion County1
- Clearfield County1
- Elk County1
- Fayette County1
- Forest County1
- Greene County1
- Indiana County1
- Jefferson County1
- McKean County1
- Westmoreland County1
- Bradford County1
- Columbia County1
- Cumberland County1
- Dauphin County1
- Montour County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20022004
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.