Alert archive / Pennsylvania / Mesoscale Discussions / 2003
Mesoscale Discussions in Pennsylvania, December 2003
3 mesoscale discussions in December 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 December 2003. Tap one for its archive.
- Mesoscale Discussions
- 3
- Busiest day
- December 5, 20032 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 5, 12:20 PM EST | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Berks and 38 more | 6 hr |
| Dec 5, 6:48 PM EST | Mesoscale Discussion | SPC | Carbon, Lackawanna, Monroe, Northampton, Pike, Wayne | 4 hr |
| Dec 14, 6:39 AM EST | Mesoscale Discussion | SPC | Bedford, Blair, Cambria, Centre, Clinton, Franklin and 11 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bedford County2
- Blair County2
- Cambria County2
- Centre County2
- Clinton County2
- Franklin County2
- Fulton County2
- Huntingdon County2
- Juniata County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Perry County2
- Snyder County2
- Somerset County2
- Union County2
- Adams County1
- Allegheny County1
- Armstrong County1
- Beaver County1
- Berks County1
- Butler County1
- Cameron County1
- Clarion County1
- Clearfield County1
- Columbia County1
- Crawford County1
- Cumberland County1
- Dauphin County1
- Elk County1
- Fayette County1
- Forest County1
- Greene County1
- Indiana County1
- Jefferson County1
- Lancaster County1
- Lawrence County1
- Lebanon County1
- Mercer County1
- Schuylkill 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.