Alert archive / Pennsylvania / Mesoscale Discussions / 2015
Mesoscale Discussions in Pennsylvania, May 2015
12 mesoscale discussions in May 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 May 2015. Tap one for its archive.
- Mesoscale Discussions
- 12
- Busiest day
- May 11, 20153 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 |
|---|---|---|---|---|
| May 6, 3:21 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 8 more | 114 min |
| May 11, 1:32 PM EDT | Mesoscale Discussion | SPC | Bradford, Potter, Susquehanna, Tioga | 2 hr |
| May 11, 4:24 PM EDT | Mesoscale Discussion | SPC | Beaver, Lawrence, Mercer | 2 hr |
| May 11, 7:26 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 16 more | 64 min |
| May 11, 10:10 PM EDT | Mesoscale Discussion | SPC | McKean | 95 min |
| May 16, 1:35 PM EDT | Mesoscale Discussion | SPC | Adams, Armstrong, Bedford, Berks, Blair, Bradford and 47 more | 2 hr |
| May 19, 7:38 PM EDT | Mesoscale Discussion | SPC | Pike | 2 hr |
| May 27, 12:21 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 21 more | 54 min |
| May 27, 2:59 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 19 more | 2 hr |
| May 27, 4:49 PM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 3 more | 86 min |
| May 30, 7:23 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 13 more | 67 min |
| May 31, 12:51 PM EDT | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 27 more | 114 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Armstrong County5
- Beaver County5
- Indiana County5
- Westmoreland County5
- Pike County5
- Allegheny County4
- Butler County4
- Cambria County4
- Fayette County4
- Somerset County4
- Susquehanna County4
- Lawrence County4
- Elk County4
- Jefferson County4
- Adams County4
- Bucks County4
- Chester County4
- Cumberland County4
- Dauphin County4
- Delaware County4
- Lehigh County4
- Monroe County4
- Montgomery County4
- Northampton County4
- Northumberland County4
- Philadelphia County4
- Bedford County3
- Blair County3
- Franklin County3
- Fulton County3
- Huntingdon County3
- Mercer County3
- Clarion County3
- McKean County3
- Washington County3
- Berks County3
- Carbon County3
- Columbia County3
- Lackawanna County3
- Lancaster County3
27 more counties
- Lebanon County3
- Luzerne County3
- Montour County3
- Perry County3
- Schuylkill County3
- Wayne County3
- Wyoming County3
- York County3
- Bradford County2
- Potter County2
- Tioga County2
- Crawford County2
- Erie County2
- Forest County2
- Greene County2
- Venango County2
- Warren County2
- Cameron County2
- Centre County2
- Clearfield County2
- Clinton County2
- Juniata County2
- Mifflin County2
- Snyder County2
- Union County2
- Lycoming County1
- Sullivan County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.