Alert archive / Pennsylvania / Mesoscale Discussions

Mesoscale Discussions in Pennsylvania, 2008

140 mesoscale discussions in 2008. 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 2008. Tap one for its archive.

Mesoscale Discussions
140
Busiest month
June43 mesoscale discussions
Busiest day
May 31, 20086 mesoscale discussions

Over time

By month

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
Jan 9, 3:50 AM ESTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Bradford, Cambria, Cameron and 20 more115 min
Jan 17, 12:53 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 5 more4 hr
Jan 18, 12:57 AM ESTMesoscale DiscussionSPCMonroe, Pike6 hr
Feb 1, 1:43 AM ESTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Lawrence, Mercer and 1 more5 hr
Feb 1, 7:36 AM ESTMesoscale DiscussionSPCAdams, Armstrong, Bedford, Berks, Blair, Bradford and 48 more5 hr
Feb 1, 1:15 PM ESTMesoscale DiscussionSPCSusquehanna, Wayne4 hr
Feb 6, 2:48 AM ESTMesoscale DiscussionSPCGreene87 min
Feb 6, 6:09 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Butler, Cambria and 6 more66 min
Feb 6, 9:41 PM ESTMesoscale DiscussionSPCBerks, Chester, Lancaster, Lebanon, Lehigh, Montgomery and 2 more64 min
Feb 12, 7:54 AM ESTMesoscale DiscussionSPCBeaver, Washington4 hr
Feb 12, 1:06 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Berks, Blair and 55 more6 hr
Feb 12, 4:15 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 8 more6 hr
Feb 12, 7:41 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Berks, Blair, Bradford and 46 more6 hr
Feb 13, 1:31 AM ESTMesoscale DiscussionSPCAdams, Berks, Carbon, Columbia, Cumberland, Dauphin and 19 more6 hr
Feb 22, 12:40 AM ESTMesoscale DiscussionSPCAdams, Chester, Cumberland, Delaware, Lancaster, Philadelphia and 1 more6 hr
Feb 22, 7:01 AM ESTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 33 more6 hr
Feb 22, 12:51 PM ESTMesoscale DiscussionSPCCarbon, Columbia, Lackawanna, Luzerne, Monroe, Montour and 5 more6 hr
Feb 26, 12:13 PM ESTMesoscale DiscussionSPCBradford, Lycoming, Sullivan, Susquehanna, Tioga6 hr
Mar 4, 9:08 AM ESTMesoscale DiscussionSPCBradford, Cameron, Clarion, Crawford, Elk, Forest and 8 more4 hr
Mar 4, 7:34 PM ESTMesoscale DiscussionSPCFayette56 min
Mar 5, 12:23 AM ESTMesoscale DiscussionSPCChester, Delaware, Philadelphia67 min
Mar 5, 2:32 AM ESTMesoscale DiscussionSPCBucks, Delaware, Lehigh, Monroe, Montgomery, Northampton and 2 more88 min
Mar 7, 10:05 PM ESTMesoscale DiscussionSPCBeaver, Crawford, Greene, Lawrence, Mercer, Washington5 hr
Mar 8, 6:16 AM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 25 more6 hr
Apr 1, 6:31 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 10 more59 min
Apr 20, 6:44 PM EDTMesoscale DiscussionSPCCumberland, Perry, York61 min
Apr 26, 2:16 PM EDTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Cambria, Cameron, Centre and 13 more59 min
May 27, 11:20 AM EDTMesoscale DiscussionSPCBradford, Cameron, Clinton, Columbia, Lackawanna, Luzerne and 10 more115 min
May 27, 2:45 PM EDTMesoscale DiscussionSPCLackawanna, Luzerne, Monroe, Pike, Wayne, Wyoming90 min
May 27, 7:14 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lebanon and 3 more61 min
May 31, 2:56 AM EDTMesoscale DiscussionSPCBeaver, Lawrence, Mercer94 min
May 31, 7:27 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Cambria, Fayette, Greene, Indiana and 3 more2 hr
May 31, 8:54 AM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Lancaster, Lebanon and 1 more96 min
May 31, 2:55 PM EDTMesoscale DiscussionSPCMcKean, Potter, Tioga65 min
May 31, 4:28 PM EDTMesoscale DiscussionSPCGreene62 min
May 31, 5:34 PM EDTMesoscale DiscussionSPCBradford, Cameron, Carbon, Centre, Clarion, Clearfield and 24 more26 min
Jun 4, 11:51 AM EDTMesoscale DiscussionSPCAdams, Bedford, Cumberland, Franklin, Fulton, York84 min
Jun 5, 2:34 PM EDTMesoscale DiscussionSPCArmstrong, Blair, Cambria, Cameron, Centre, Clarion and 26 more86 min
Jun 7, 2:19 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Monroe and 5 more2 hr
Jun 8, 11:56 AM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Chester and 25 more2 hr
Jun 8, 2:40 PM EDTMesoscale DiscussionSPCBucks, Carbon, Delaware, Lackawanna, Lehigh, Luzerne and 8 more95 min
Jun 10, 9:43 AM EDTMesoscale DiscussionSPCBradford, Susquehanna, Wayne2 hr
Jun 10, 1:25 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 15 more95 min
Jun 10, 2:27 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Centre, Columbia, Cumberland and 15 more63 min
Jun 10, 3:49 PM EDTMesoscale DiscussionSPCBradford, Susquehanna, Tioga, Wayne, Wyoming116 min
Jun 10, 4:52 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lancaster and 6 more53 min
Jun 10, 6:51 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 21 more54 min
Jun 13, 8:16 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Lawrence, Mercer and 2 more89 min
Jun 14, 12:10 PM EDTMesoscale DiscussionSPCAdams, Franklin95 min
Jun 15, 9:08 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Crawford, Lawrence, Mercer, Washington97 min
Jun 16, 10:19 AM EDTMesoscale DiscussionSPCArmstrong, Beaver, Berks, Blair, Bradford, Butler and 43 more2 hr
Jun 16, 12:54 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Bucks, Carbon, Chester and 15 more2 hr
Jun 16, 2:41 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 21 more64 min
Jun 16, 5:53 PM EDTMesoscale DiscussionSPCArmstrong, Bradford, Cambria, Cameron, Centre, Clarion and 15 more67 min
Jun 16, 6:18 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 2 more87 min
Jun 21, 1:12 PM EDTMesoscale DiscussionSPCCameron, Elk, McKean, Potter, Tioga93 min
Jun 21, 7:04 PM EDTMesoscale DiscussionSPCBeaver, Crawford, Erie, Lawrence, Mercer116 min
Jun 22, 12:16 PM EDTMesoscale DiscussionSPCBedford, Fayette, Fulton, Greene, Somerset89 min
Jun 23, 3:30 AM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Lackawanna, Lehigh and 8 more90 min
Jun 23, 11:10 AM EDTMesoscale DiscussionSPCBedford, Blair, Bradford, Cambria, Cameron, Centre and 18 more95 min
Jun 23, 2:55 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 17 more95 min
Jun 27, 11:37 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more2 hr
Jun 27, 4:12 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Delaware, Lancaster, Philadelphia and 1 more63 min
Jun 27, 4:46 PM EDTMesoscale DiscussionSPCBradford, Susquehanna, Tioga, Wayne59 min
Jun 28, 10:39 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Greene, Lawrence and 3 more66 min
Jun 28, 12:02 PM EDTMesoscale DiscussionSPCGreene, Washington88 min
Jun 28, 3:52 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Crawford, Greene, Lawrence, Mercer and 1 more113 min
Jun 28, 6:06 PM EDTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Cambria, Cameron, Centre and 17 more84 min
Jun 28, 6:47 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Erie, Greene and 4 more58 min
Jun 29, 10:46 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more119 min
Jun 29, 12:53 PM EDTMesoscale DiscussionSPCBucks, Carbon, Lackawanna, Lehigh, Monroe, Northampton and 2 more67 min
Jun 29, 2:04 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Carbon and 28 more116 min
Jun 29, 4:14 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 45 more91 min
Jun 29, 7:13 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Berks, Blair and 52 more92 min
Jun 29, 9:30 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Carbon and 31 more2 hr
Jun 29, 11:58 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 7 more92 min
Jun 30, 12:15 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 7 more90 min
Jun 30, 11:01 AM EDTMesoscale DiscussionSPCBedford, Fayette, Greene, Somerset119 min
Jun 30, 7:52 PM EDTMesoscale DiscussionSPCAdams, Chester, Lancaster, Lebanon, York113 min
Jul 1, 12:19 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 11 more2 hr
Jul 3, 2:06 PM EDTMesoscale DiscussionSPCLackawanna, Luzerne, Pike, Sullivan, Susquehanna, Wayne and 1 more84 min
Jul 7, 1:20 PM EDTMesoscale DiscussionSPCBedford, Fayette, Fulton, Greene, Somerset, Washington and 1 more55 min
Jul 8, 5:56 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more64 min
Jul 8, 8:19 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Forest and 5 more56 min
Jul 13, 1:03 PM EDTMesoscale DiscussionSPCAdams, Bedford, Centre, Clinton, Columbia, Cumberland and 15 more87 min
Jul 16, 5:33 PM EDTMesoscale DiscussionSPCSusquehanna57 min
Jul 17, 11:38 AM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 8 more2 hr
Jul 20, 11:29 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 8 more61 min
Jul 20, 4:28 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Bradford, Cambria, Centre and 27 more2 hr
Jul 21, 10:28 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Greene, Lawrence, Mercer and 1 more62 min
Jul 21, 2:09 PM EDTMesoscale DiscussionSPCBradford, Susquehanna, Wayne, Wyoming66 min
Jul 21, 6:33 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Lawrence and 3 more57 min
Jul 22, 2:15 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Delaware and 14 more2 hr
Jul 23, 3:29 AM EDTMesoscale DiscussionSPCBerks, Carbon, Columbia, Lackawanna, Lehigh, Luzerne and 13 more91 min
Jul 23, 12:33 PM EDTMesoscale DiscussionSPCBucks, Delaware, Philadelphia57 min
Jul 23, 1:28 PM EDTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Cambria, Cameron, Clarion and 11 more62 min
Jul 23, 9:26 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia and 1 more64 min
Jul 24, 1:56 PM EDTMesoscale DiscussionSPCBlair, Bradford, Cambria, Cameron, Centre, Clarion and 19 more2 hr
Jul 26, 10:16 AM EDTMesoscale DiscussionSPCCrawford, Erie, Forest, McKean, Mercer, Potter and 2 more119 min
Jul 26, 4:53 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Bradford, Butler, Cameron, Centre and 20 more97 min
Jul 27, 11:03 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 19 more57 min
Jul 27, 3:41 PM EDTMesoscale DiscussionSPCMonroe, Pike2 hr
Jul 30, 2:23 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 3 more97 min
Jul 30, 7:47 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 5 more88 min
Aug 1, 10:56 PM EDTMesoscale DiscussionSPCCrawford, Mercer94 min
Aug 2, 10:11 AM EDTMesoscale DiscussionSPCBerks, Bucks, Montgomery, Philadelphia94 min
Aug 2, 1:18 PM EDTMesoscale DiscussionSPCAdams, York57 min
Aug 2, 7:09 PM EDTMesoscale DiscussionSPCAdams, Lancaster, York96 min
Aug 7, 11:34 AM EDTMesoscale DiscussionSPCBradford, Lackawanna, Luzerne, Lycoming, McKean, Monroe and 7 more116 min
Aug 7, 4:25 PM EDTMesoscale DiscussionSPCBradford, Susquehanna, Wayne65 min
Aug 7, 5:42 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Chester, Columbia, Dauphin and 10 more63 min
Aug 10, 10:27 AM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia33 min
Aug 10, 1:05 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lehigh, Monroe and 4 more85 min
Aug 10, 4:06 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Carbon, Columbia, Cumberland and 21 more84 min
Aug 11, 10:56 AM EDTMesoscale DiscussionSPCBucks, Delaware, Lehigh, Monroe, Montgomery, Northampton and 2 more2 hr
Aug 14, 6:15 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more60 min
Aug 15, 2:47 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 6 more88 min
Aug 15, 6:20 PM EDTMesoscale DiscussionSPCPhiladelphia85 min
Sep 9, 8:35 AM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 3 more115 min
Sep 9, 12:11 PM EDTMesoscale DiscussionSPCDelaware, Philadelphia94 min
Sep 13, 3:51 PM EDTMesoscale DiscussionSPCGreene, Washington114 min
Oct 28, 1:40 PM EDTMesoscale DiscussionSPCBradford, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 10 more4 hr
Nov 15, 1:47 PM ESTMesoscale DiscussionSPCCarbon, Lackawanna, Lehigh, Luzerne, Monroe, Northampton and 5 more58 min
Dec 11, 12:04 AM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Blair, Butler, Cambria, Carbon and 21 more3 hr
Dec 11, 7:30 AM ESTMesoscale DiscussionSPCCarbon, Columbia, Lackawanna, Luzerne, Lycoming, Monroe and 10 more4 hr
Dec 11, 1:52 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 14 more3 hr
Dec 11, 6:56 PM ESTMesoscale DiscussionSPCLackawanna, Pike, Susquehanna, Wayne, Wyoming4 hr
Dec 12, 12:21 AM ESTMesoscale DiscussionSPCLackawanna, Pike, Susquehanna, Wayne, Wyoming4 hr
Dec 16, 11:56 AM ESTMesoscale DiscussionSPCFayette, Greene, Somerset, Washington6 hr
Dec 16, 11:55 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 12 more4 hr
Dec 17, 6:36 AM ESTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 10 more4 hr
Dec 19, 7:22 AM ESTMesoscale DiscussionSPCBradford, Cameron, Carbon, Centre, Clarion, Clearfield and 23 more5 hr
Dec 19, 12:22 PM ESTMesoscale DiscussionSPCLackawanna, Monroe, Pike, Susquehanna, Wayne6 hr
Dec 20, 11:55 PM ESTMesoscale DiscussionSPCBucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more4 hr
Dec 21, 6:35 AM ESTMesoscale DiscussionSPCDelaware, Philadelphia4 hr
Dec 21, 11:24 PM ESTMesoscale DiscussionSPCCrawford, Erie4 hr
Dec 24, 12:50 AM ESTMesoscale DiscussionSPCBradford, Cambria, Cameron, Centre, Clarion, Clearfield and 20 more6 hr
Dec 24, 7:32 AM ESTMesoscale DiscussionSPCBradford, Centre, Clinton, Columbia, Dauphin, Huntingdon and 16 more4 hr
Dec 31, 12:52 AM ESTMesoscale DiscussionSPCBradford, Crawford, Erie, Forest, McKean, Potter and 5 more6 hr
Dec 31, 7:06 AM ESTMesoscale DiscussionSPCLackawanna, Monroe, Pike, Susquehanna, Wayne3 hr

By county

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

27 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 31, 20086mesoscale discussions
  2. June 10, 20086mesoscale discussions
  3. June 16, 20086mesoscale discussions
  4. June 28, 20085mesoscale discussions
  5. June 29, 20085mesoscale discussions
  6. June 30, 20085mesoscale discussions
  7. August 2, 20084mesoscale discussions
  8. December 11, 20084mesoscale discussions
  9. February 1, 20083mesoscale discussions
  10. February 12, 20083mesoscale discussions
  11. February 22, 20083mesoscale discussions
  12. March 5, 20083mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20072009

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.