Alert archive / Pennsylvania / Mesoscale Discussions

Mesoscale Discussions in Pennsylvania, 2013

135 mesoscale discussions in 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 2013. Tap one for its archive.

Mesoscale Discussions
135
Busiest month
June28 mesoscale discussions
Busiest day
May 22, 20136 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 15, 8:36 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Bedford, Berks, Blair, Cambria and 35 more4 hr
Jan 16, 3:42 AM ESTMesoscale DiscussionSPCMonroe, Pike4 hr
Jan 27, 10:21 PM ESTMesoscale DiscussionSPCBeaver, Lawrence, Mercer4 hr
Jan 28, 12:22 AM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Butler, Cambria, Clarion, Crawford and 10 more4 hr
Jan 28, 4:32 AM ESTMesoscale DiscussionSPCClearfield, Elk, McKean, Warren5 hr
Jan 28, 7:33 AM ESTMesoscale DiscussionSPCBerks, Bradford, Carbon, Centre, Clinton, Columbia and 25 more5 hr
Jan 28, 11:55 AM ESTMesoscale DiscussionSPCBucks, Carbon, Lackawanna, Lehigh, Luzerne, Monroe and 5 more6 hr
Jan 30, 10:19 AM ESTMesoscale DiscussionSPCAdams, Armstrong, Bedford, Blair, Cambria, Cameron and 20 more86 min
Jan 30, 12:54 PM ESTMesoscale DiscussionSPCAdams, Cumberland, Dauphin, Franklin, Fulton, Juniata and 4 more96 min
Jan 30, 9:06 PM ESTMesoscale DiscussionSPCChester, Delaware, Montgomery, Philadelphia54 min
Jan 31, 1:48 AM ESTMesoscale DiscussionSPCBucks, Delaware, Montgomery, Philadelphia57 min
Feb 8, 7:51 PM ESTMesoscale DiscussionSPCSusquehanna, Wayne3 hr
Feb 26, 11:37 AM ESTMesoscale DiscussionSPCBedford, Somerset5 hr
Feb 26, 8:02 PM ESTMesoscale DiscussionSPCBradford, Lackawanna, Pike, Susquehanna, Wayne, Wyoming4 hr
Mar 24, 7:13 PM EDTMesoscale DiscussionSPCGreene6 hr
Mar 25, 12:35 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Bedford, Cambria, Fayette, Fulton and 5 more5 hr
Mar 25, 5:31 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 34 more6 hr
Apr 10, 1:33 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 44 more117 min
Apr 10, 5:59 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Berks, Blair and 49 more61 min
Apr 10, 8:28 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 30 more2 hr
Apr 10, 11:11 PM EDTMesoscale DiscussionSPCAdams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 5 more94 min
Apr 16, 9:02 PM EDTMesoscale DiscussionSPCFayette, Greene, Washington, Westmoreland88 min
Apr 19, 1:27 PM EDTMesoscale DiscussionSPCAdams, Chester, Lancaster, York63 min
Apr 19, 3:36 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Carbon, Chester, Columbia and 25 more54 min
Apr 19, 6:02 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Carbon, Chester, Columbia and 21 more58 min
Apr 19, 7:12 PM EDTMesoscale DiscussionSPCBucks, Delaware, Montgomery, Philadelphia93 min
Apr 19, 9:11 PM EDTMesoscale DiscussionSPCBucks, Delaware, Montgomery, Philadelphia94 min
Apr 24, 3:36 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Bradford, Cambria, Cameron and 24 more84 min
Apr 24, 6:59 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Chester, Columbia, Dauphin and 15 more2 hr
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
Jun 2, 10:48 AM EDTMesoscale DiscussionSPCLackawanna, Pike, Susquehanna, Wayne, Wyoming2 hr
Jun 2, 3:18 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Dauphin and 11 more2 hr
Jun 10, 4:38 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Chester, Cumberland and 12 more97 min
Jun 12, 6:11 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Fayette, Greene, Somerset, Washington and 1 more94 min
Jun 12, 8:05 PM EDTMesoscale DiscussionSPCFayette, Greene, Washington55 min
Jun 12, 11:22 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 5 more53 min
Jun 13, 2:40 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 34 more2 hr
Jun 13, 5:27 AM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 42 more2 hr
Jun 13, 8:10 AM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lebanon and 5 more95 min
Jun 24, 1:48 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Dauphin, Delaware and 6 more57 min
Jun 24, 4:43 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lancaster and 5 more62 min
Jun 25, 12:22 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Bradford, Butler and 41 more2 hr
Jun 25, 3:04 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 13 more116 min
Jun 25, 5:27 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 36 more93 min
Jun 25, 8:22 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lebanon and 4 more83 min
Jun 25, 8:44 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Erie, Fayette and 5 more61 min
Jun 26, 1:19 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Lancaster, Lebanon, York2 hr
Jun 26, 3:52 PM EDTMesoscale DiscussionSPCBradford, Potter, Tioga113 min
Jun 26, 4:11 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Columbia, Cumberland, Dauphin and 16 more2 hr
Jun 26, 4:38 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia97 min
Jun 27, 1:04 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Chester and 29 more116 min
Jun 27, 3:57 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 22 more93 min
Jun 27, 6:58 PM EDTMesoscale DiscussionSPCPike, Wayne62 min
Jun 28, 1:02 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 48 more118 min
Jun 28, 3:30 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 36 more2 hr
Jun 28, 7:11 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 19 more64 min
Jun 30, 11:48 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 25 more2 hr
Jun 30, 2:33 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Berks, Blair, Bradford, Cambria and 36 more2 hr
Jul 5, 1:59 PM EDTMesoscale DiscussionSPCBradford, Potter, Susquehanna, Tioga61 min
Jul 7, 12:48 PM EDTMesoscale DiscussionSPCBedford, Blair, Cambria, Centre, Clinton, Cumberland and 9 more117 min
Jul 7, 3:19 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Centre, Chester, Columbia and 27 more116 min
Jul 7, 6:09 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 11 more66 min
Jul 10, 3:45 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Blair, Bradford and 42 more30 min
Jul 10, 6:15 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Blair, Bradford, Cambria, Cameron and 17 more90 min
Jul 10, 9:02 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Monroe and 10 more88 min
Jul 18, 6:28 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Cambria, Centre and 20 more2 hr
Jul 19, 6:09 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Franklin and 7 more2 hr
Jul 20, 1:36 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 5 more54 min
Jul 20, 7:47 PM EDTMesoscale DiscussionSPCBucks58 min
Jul 22, 1:18 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 7 more87 min
Jul 23, 12:44 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Greene, Lawrence and 2 more91 min
Jul 23, 4:02 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more88 min
Jul 23, 5:27 PM EDTMesoscale DiscussionSPCBedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more3 hr
Jul 23, 6:57 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 7 more93 min
Jul 27, 5:25 PM EDTMesoscale DiscussionSPCAdams, Blair, Bradford, Cambria, Cameron, Centre and 24 more95 min
Jul 28, 11:31 AM EDTMesoscale DiscussionSPCBerks, Carbon, Columbia, Dauphin, Lackawanna, Lancaster and 10 more59 min
Jul 28, 1:34 PM EDTMesoscale DiscussionSPCBucks, Delaware, Philadelphia56 min
Aug 7, 3:24 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Forest and 7 more66 min
Aug 7, 5:52 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Centre, Cumberland, Dauphin and 9 more83 min
Aug 8, 3:45 PM EDTMesoscale DiscussionSPCBeaver, Butler, Clarion, Crawford, Elk, Forest and 6 more90 min
Aug 9, 3:17 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia58 min
Aug 13, 6:24 AM EDTMesoscale DiscussionSPCDelaware, Philadelphia3 hr
Aug 22, 2:03 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Blair, Bradford, Butler, Cambria and 35 more2 hr
Aug 22, 2:51 PM EDTMesoscale DiscussionSPCBeaver, Greene, Washington2 hr
Aug 31, 4:02 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Lycoming, Sullivan, Susquehanna, Tioga and 2 more58 min
Sep 2, 12:33 PM EDTMesoscale DiscussionSPCCameron, Clarion, Crawford, Elk, Forest, Jefferson and 7 more117 min
Sep 2, 6:52 PM EDTMesoscale DiscussionSPCArmstrong, Bradford, Cameron, Carbon, Centre, Clearfield and 21 more113 min
Sep 11, 11:42 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Bradford, Butler and 34 more63 min
Sep 11, 2:47 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bradford, Butler, Cambria and 28 more58 min
Sep 12, 12:02 PM EDTMesoscale DiscussionSPCBlair, Bradford, Cameron, Carbon, Centre, Clearfield and 26 more58 min
Sep 12, 2:41 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Bradford, Cambria, Carbon and 29 more64 min
Sep 12, 3:26 PM EDTMesoscale DiscussionSPCPike64 min
Sep 12, 4:24 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 3 more66 min
Oct 7, 8:10 AM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Carbon, Chester, Columbia and 23 more2 hr
Oct 7, 10:36 AM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 19 more114 min
Oct 7, 12:20 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 8 more115 min
Oct 17, 6:36 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Centre, Clinton, Columbia and 20 more114 min
Nov 1, 12:39 AM EDTMesoscale DiscussionSPCCrawford96 min
Nov 1, 3:37 AM EDTMesoscale DiscussionSPCAdams, Armstrong, Bedford, Blair, Cambria, Cameron and 30 more83 min
Nov 1, 5:41 AM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Chester and 33 more94 min
Nov 1, 8:34 AM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia86 min
Nov 17, 7:36 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 19 more54 min
Nov 17, 10:24 PM ESTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Bradford, Cambria, Cameron and 27 more66 min
Nov 18, 2:31 AM ESTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 14 more89 min
Nov 26, 10:25 AM ESTMesoscale DiscussionSPCBedford, Blair, Cambria, Centre, Cumberland, Franklin and 5 more6 hr
Nov 26, 6:15 PM ESTMesoscale DiscussionSPCButler, Clarion, Crawford, Forest, Lawrence, McKean and 3 more4 hr
Dec 6, 4:37 AM ESTMesoscale DiscussionSPCLawrence, Mercer5 hr
Dec 6, 4:02 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Indiana and 5 more3 hr
Dec 6, 7:41 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Bradford, Butler and 37 more6 hr
Dec 8, 11:05 AM ESTMesoscale DiscussionSPCAdams, Bedford, Cumberland, Fayette, Franklin, Fulton and 4 more3 hr
Dec 8, 2:30 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Dauphin, Delaware and 5 more2 hr
Dec 10, 4:37 AM ESTMesoscale DiscussionSPCFranklin, Fulton4 hr
Dec 10, 7:28 AM ESTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia5 hr
Dec 14, 3:02 PM ESTMesoscale DiscussionSPCArmstrong, Bedford, Berks, Blair, Bradford, Butler and 40 more6 hr
Dec 22, 12:55 AM ESTMesoscale DiscussionSPCBeaver, Lawrence, Mercer95 min
Dec 22, 6:14 AM ESTMesoscale DiscussionSPCAdams, Columbia, Cumberland, Dauphin, Franklin, Fulton and 12 more61 min

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 22, 20136mesoscale discussions
  2. June 26, 20136mesoscale discussions
  3. January 28, 20135mesoscale discussions
  4. May 23, 20135mesoscale discussions
  5. June 13, 20135mesoscale discussions
  6. April 19, 20134mesoscale discussions
  7. July 23, 20134mesoscale discussions
  8. September 12, 20134mesoscale discussions
  9. November 1, 20134mesoscale discussions
  10. May 29, 20133mesoscale discussions
  11. June 25, 20133mesoscale discussions
  12. June 27, 20133mesoscale discussions

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.