Alert archive / Pennsylvania / Mesoscale Discussions / 2015
Mesoscale Discussions in Pennsylvania, August 2015
4 mesoscale discussions in August 2015. 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 2015. Tap one for its archive.
- Mesoscale Discussions
- 4
- Busiest day
- August 20, 20152 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, 3:29 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Chester, Delaware, Lancaster and 4 more | 3 hr |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | Chester, Lancaster | 3 hr |
| Aug 20, 11:49 AM EDT | Mesoscale Discussion | SPC | Adams, Armstrong, Bedford, Berks, Blair, Bradford and 39 more | 2 hr |
| Aug 20, 3:45 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Clinton, Columbia, Cumberland and 19 more | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lancaster County4
- Adams County3
- Berks County3
- York County3
- Chester County2
- Bradford County2
- Clinton County2
- Columbia County2
- Cumberland County2
- Dauphin County2
- Franklin County2
- Juniata County2
- Lebanon County2
- Luzerne County2
- Lycoming County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Perry County2
- Schuylkill County2
- Snyder County2
- Sullivan County2
- Susquehanna County2
- Tioga County2
- Union County2
- Wyoming County2
- Bucks County1
- Delaware County1
- Lehigh County1
- Montgomery County1
- Philadelphia County1
- Armstrong County1
- Bedford County1
- Blair County1
- Cambria County1
- Cameron County1
- Centre County1
- Clarion County1
- Clearfield County1
- Elk County1
Nearby
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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.