Alert archive / Pennsylvania / Mesoscale Discussions / 2012

Mesoscale Discussions in Pennsylvania, July 2012

36 mesoscale discussions in July 2012. 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 July 2012. Tap one for its archive.

Mesoscale Discussions
36
Busiest day
July 26, 20128 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
Jul 1, 12:11 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Dauphin and 16 more64 min
Jul 1, 3:25 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 2 more95 min
Jul 1, 7:22 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 4 more83 min
Jul 1, 8:32 PM EDTMesoscale DiscussionSPCBedford, Fayette, Greene, Somerset, Westmoreland88 min
Jul 3, 10:20 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 4 more85 min
Jul 3, 7:40 PM EDTMesoscale DiscussionSPCCrawford, Erie, Forest, Lawrence, Mercer, Venango and 1 more2 hr
Jul 4, 8:38 AM EDTMesoscale DiscussionSPCCrawford, Erie, Lawrence, Mercer, Venango, Warren2 hr
Jul 4, 4:04 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Fayette, Greene, Lawrence and 3 more56 min
Jul 4, 6:46 PM EDTMesoscale DiscussionSPCBradford, Bucks, Carbon, Lackawanna, Lehigh, Luzerne and 6 more59 min
Jul 4, 8:05 PM EDTMesoscale DiscussionSPCBedford, Fayette, Fulton, Somerset55 min
Jul 4, 9:48 PM EDTMesoscale DiscussionSPCBeaver, Lawrence, Washington87 min
Jul 5, 4:37 PM EDTMesoscale DiscussionSPCAdams, Blair, Centre, Cumberland, Dauphin, Franklin and 6 more113 min
Jul 7, 11:19 AM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Cameron, Carbon, Centre and 32 more86 min
Jul 7, 1:36 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Lehigh, Luzerne and 14 more84 min
Jul 7, 1:48 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Butler, Cameron, Centre, Clarion and 13 more57 min
Jul 7, 3:57 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Bradford, Butler and 41 more2 hr
Jul 7, 5:43 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Bucks, Carbon, Chester and 18 more62 min
Jul 18, 10:25 AM EDTMesoscale DiscussionSPCBerks, Blair, Bradford, Bucks, Cambria, Cameron and 39 more2 hr
Jul 18, 12:54 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Greene, Lawrence, Washington2 hr
Jul 18, 3:44 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 5 more91 min
Jul 18, 4:21 PM EDTMesoscale DiscussionSPCGreene, Washington84 min
Jul 19, 6:53 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Dauphin, Delaware, Franklin and 5 more97 min
Jul 23, 12:32 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Lehigh, Luzerne and 12 more88 min
Jul 23, 4:01 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 12 more119 min
Jul 24, 11:48 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 13 more87 min
Jul 26, 1:15 AM EDTMesoscale DiscussionSPCButler, Clarion, Crawford, Elk, Erie, Forest and 6 more2 hr
Jul 26, 4:31 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 21 more89 min
Jul 26, 12:26 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 16 more2 hr
Jul 26, 1:50 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more115 min
Jul 26, 3:37 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 55 more113 min
Jul 26, 6:04 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Dauphin, Delaware and 15 more86 min
Jul 26, 6:06 PM EDTMesoscale DiscussionSPCAllegheny, Fayette, Greene, Somerset, Washington, Westmoreland84 min
Jul 26, 7:28 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia92 min
Jul 28, 12:26 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Dauphin and 11 more2 hr
Jul 28, 4:18 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 14 more87 min
Jul 28, 8:00 PM EDTMesoscale DiscussionSPCBerks, Chester, Lehigh30 min

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 archive20112013

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.