Alert archive / Pennsylvania / Mesoscale Discussions / 2013

Mesoscale Discussions in Pennsylvania, May 2013

20 mesoscale discussions in May 2013. 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 2013. Tap one for its archive.

Mesoscale Discussions
20
Busiest day
May 22, 20136 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.

IssuedProductOfficeCountiesLasted
May 10, 2:21 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 19 more54 min
May 10, 5:11 PM EDTMesoscale DiscussionSPCArmstrong, Butler, Cameron, Clarion, Clearfield, Clinton and 10 more94 min
May 11, 1:44 PM EDTMesoscale DiscussionSPCChester, Delaware, Lancaster, Montgomery, Philadelphia, York91 min
May 15, 5:07 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Bedford, Blair, Cambria, Centre and 13 more83 min
May 22, 11:31 AM EDTMesoscale DiscussionSPCLackawanna, Monroe, Pike, Susquehanna, Wayne, Wyoming119 min
May 22, 2:08 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 8 more2 hr
May 22, 3:53 PM EDTMesoscale DiscussionSPCAdams, Bedford, Centre, Cumberland, Dauphin, Franklin and 11 more67 min
May 22, 4:28 PM EDTMesoscale DiscussionSPCLackawanna, Sullivan, Susquehanna, Wayne, Wyoming92 min
May 22, 6:20 PM EDTMesoscale DiscussionSPCAdams, Centre, Clinton, Cumberland, Dauphin, Franklin and 8 more85 min
May 22, 7:41 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Luzerne, Pike, Sullivan, Susquehanna and 3 more94 min
May 22, 8:21 PM EDTMesoscale DiscussionSPCLackawanna, Sullivan, Susquehanna, Wayne, Wyoming54 min
May 23, 10:57 AM EDTMesoscale DiscussionSPCArmstrong, Bradford, Cameron, Centre, Clarion, Clearfield and 9 more3 hr
May 23, 11:23 AM EDTMesoscale DiscussionSPCBucks3 hr
May 23, 11:50 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 6 more115 min
May 23, 3:37 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Dauphin, Franklin and 5 more53 min
May 28, 8:42 PM EDTMesoscale DiscussionSPCCameron, Centre, Clarion, Clearfield, Clinton, Crawford and 8 more93 min
May 29, 11:38 AM EDTMesoscale DiscussionSPCBradford, Cameron, Centre, Clarion, Clearfield, Clinton and 19 more2 hr
May 29, 5:56 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Lycoming, Pike, Sullivan, Susquehanna and 3 more64 min
May 29, 9:38 PM EDTMesoscale DiscussionSPCWayne67 min
May 31, 6:13 PM EDTMesoscale DiscussionSPCLawrence, Mercer2 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

24 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20122014

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.