Alert archive / Pennsylvania / Mesoscale Discussions / 2014

Mesoscale Discussions in Pennsylvania, May 2014

11 mesoscale discussions in May 2014. 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 2014. Tap one for its archive.

Mesoscale Discussions
11
Busiest day
May 14, 20142 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 9, 5:50 PM EDTMesoscale DiscussionSPCCameron, Elk, McKean, Potter, Tioga85 min
May 10, 2:23 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 9 more2 hr
May 14, 1:48 PM EDTMesoscale DiscussionSPCArmstrong, Cambria, Clarion, Clearfield, Elk, Fayette and 4 more117 min
May 14, 5:50 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 14 more85 min
May 14, 9:33 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Clarion, Crawford, Erie and 6 more87 min
May 15, 5:33 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Centre, Clinton, Columbia and 19 more117 min
May 22, 11:49 AM EDTMesoscale DiscussionSPCArmstrong, Berks, Blair, Bradford, Cambria, Cameron and 35 more2 hr
May 22, 1:19 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Chester and 26 more116 min
May 27, 1:43 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Berks, Blair and 45 more62 min
May 27, 6:39 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia36 min
May 28, 2:28 PM EDTMesoscale DiscussionSPCGreene3 hr

By county

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

27 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20132015

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.