Alert archive / Pennsylvania / Mesoscale Discussions

Mesoscale Discussions in Pennsylvania, 2016

82 mesoscale discussions in 2016. 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 2016. Tap one for its archive.

Mesoscale Discussions
82
Busiest month
July19 mesoscale discussions
Busiest day
January 23, 20166 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 8, 2:39 PM ESTMesoscale DiscussionSPCBradford, Cameron, Centre, Clearfield, Clinton, Elk and 9 more5 hr
Jan 22, 9:56 PM ESTMesoscale DiscussionSPCChester, Delaware, Philadelphia, York5 hr
Jan 23, 12:08 AM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 13 more5 hr
Jan 23, 4:20 AM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 15 more5 hr
Jan 23, 8:51 AM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more4 hr
Jan 23, 12:44 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Delaware and 9 more6 hr
Jan 23, 6:40 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 6 more4 hr
Feb 15, 1:46 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Delaware and 8 more5 hr
Feb 15, 6:19 PM ESTMesoscale DiscussionSPCLackawanna, Monroe, Pike, Susquehanna, Wayne5 hr
Feb 15, 8:29 PM ESTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Cambria and 32 more5 hr
Feb 24, 3:06 PM ESTMesoscale DiscussionSPCBucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia54 min
Feb 24, 6:46 PM ESTMesoscale DiscussionSPCBerks, Bucks, Carbon, Lehigh, Monroe, Northampton and 1 more119 min
Feb 24, 10:39 PM ESTMesoscale DiscussionSPCBucks, Philadelphia66 min
Apr 1, 1:46 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 24 more119 min
Apr 26, 1:19 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 23 more86 min
Apr 26, 6:46 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Chester, Cumberland and 14 more59 min
May 30, 1:55 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Lycoming, Montour, Sullivan, Susquehanna and 3 more2 hr
Jun 5, 1:14 PM EDTMesoscale DiscussionSPCAdams, Berks, Carbon, Chester, Cumberland, Dauphin and 8 more91 min
Jun 5, 4:33 PM EDTMesoscale DiscussionSPCBeaver, Butler, Clarion, Forest, Lawrence, Mercer and 2 more87 min
Jun 5, 4:57 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia93 min
Jun 6, 11:41 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 4 more64 min
Jun 6, 3:11 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Greene and 7 more3 hr
Jun 11, 2:32 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 42 more58 min
Jun 16, 11:27 AM EDTMesoscale DiscussionSPCFayette, Greene63 min
Jun 16, 1:08 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Beaver, Bedford, Fayette, Franklin and 6 more97 min
Jun 16, 4:20 PM EDTMesoscale DiscussionSPCAllegheny, Bedford, Fayette, Fulton, Greene, Somerset and 2 more55 min
Jun 16, 6:54 PM EDTMesoscale DiscussionSPCAdams, York96 min
Jun 21, 12:00 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Delaware, Franklin, Fulton and 2 more90 min
Jun 28, 1:09 PM EDTMesoscale DiscussionSPCBradford, Carbon, Clinton, Columbia, Lackawanna, Luzerne and 11 more66 min
Jun 28, 3:49 PM EDTMesoscale DiscussionSPCBerks, Chester, Lancaster, Lehigh, York56 min
Jun 28, 7:16 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lancaster and 10 more59 min
Jul 1, 12:51 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Delaware and 15 more114 min
Jul 1, 5:21 PM EDTMesoscale DiscussionSPCCarbon, Columbia, Lackawanna, Luzerne, Monroe, Montour and 6 more84 min
Jul 1, 5:43 PM EDTMesoscale DiscussionSPCChester, Delaware92 min
Jul 8, 9:22 PM EDTMesoscale DiscussionSPCCrawford, Erie53 min
Jul 14, 10:05 AM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Lycoming and 10 more115 min
Jul 18, 11:40 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 20 more95 min
Jul 18, 3:09 PM EDTMesoscale DiscussionSPCDelaware, Philadelphia66 min
Jul 18, 3:21 PM EDTMesoscale DiscussionSPCBradford, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 12 more84 min
Jul 18, 6:49 PM EDTMesoscale DiscussionSPCCarbon, Lackawanna, Luzerne, Monroe, Northampton, Pike and 3 more86 min
Jul 23, 2:34 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Beaver, Bedford, Blair, Cambria and 15 more2 hr
Jul 24, 1:03 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Lawrence, Washington2 hr
Jul 24, 3:54 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Cambria, Fayette, Greene, Indiana and 3 more3 hr
Jul 25, 10:51 AM EDTMesoscale DiscussionSPCBradford, Cameron, Clarion, Clinton, Crawford, Elk and 13 more114 min
Jul 25, 12:41 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 31 more64 min
Jul 25, 3:03 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Berks, Blair and 54 more57 min
Jul 25, 4:52 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Berks, Blair and 51 more83 min
Jul 28, 12:58 PM EDTMesoscale DiscussionSPCAdams, Chester, Delaware, Philadelphia, York2 hr
Jul 28, 4:10 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia95 min
Jul 30, 12:11 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 6 more64 min
Aug 1, 2:55 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Dauphin, Delaware and 6 more95 min
Aug 6, 12:54 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Bucks, Carbon, Chester and 19 more3 hr
Aug 13, 3:11 PM EDTMesoscale DiscussionSPCSusquehanna2 hr
Aug 13, 6:10 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Luzerne, Lycoming, Pike, Sullivan and 3 more3 hr
Aug 13, 8:53 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Cameron, Carbon, Centre and 21 more2 hr
Aug 14, 1:45 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Dauphin and 12 more2 hr
Aug 15, 1:58 PM EDTMesoscale DiscussionSPCAdams, Bedford, Fayette, Franklin, Fulton, Somerset92 min
Aug 16, 1:40 PM EDTMesoscale DiscussionSPCAdams, Blair, Centre, Clinton, Columbia, Cumberland and 15 more2 hr
Aug 16, 2:57 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Erie, Lawrence, Mercer and 2 more2 hr
Aug 16, 4:55 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Delaware and 10 more95 min
Aug 16, 6:40 PM EDTMesoscale DiscussionSPCBedford, Blair, Cambria, Centre, Clearfield, Fayette and 6 more2 hr
Aug 16, 9:00 PM EDTMesoscale DiscussionSPCBradford, Susquehanna, Wayne90 min
Aug 25, 5:42 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more93 min
Sep 7, 3:06 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Cumberland, Fayette and 8 more2 hr
Sep 8, 1:21 PM EDTMesoscale DiscussionSPCForest, McKean, Potter, Tioga, Warren2 hr
Sep 10, 1:16 PM EDTMesoscale DiscussionSPCCrawford, Erie, Lawrence, Mercer, Venango, Warren2 hr
Sep 10, 4:38 PM EDTMesoscale DiscussionSPCCrawford, Erie, Lawrence, Mercer, Venango, Warren2 hr
Sep 10, 8:06 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more84 min
Sep 14, 1:33 PM EDTMesoscale DiscussionSPCLackawanna, Luzerne, Monroe, Pike, Sullivan, Susquehanna and 2 more87 min
Sep 17, 4:23 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more2 hr
Sep 17, 6:55 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Butler, Clarion, Elk, Forest and 4 more65 min
Sep 26, 1:58 PM EDTMesoscale DiscussionSPCFayette, Greene2 hr
Oct 20, 2:28 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 20 more3 hr
Oct 20, 6:58 PM EDTMesoscale DiscussionSPCBedford, Blair, Cambria, Cameron, Centre, Clearfield and 8 more92 min
Oct 20, 11:01 PM EDTMesoscale DiscussionSPCBradford, Columbia, Lycoming, Montour, Northumberland, Snyder and 4 more59 min
Oct 30, 3:55 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Dauphin, Delaware and 4 more2 hr
Dec 11, 10:05 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 25 more4 hr
Dec 16, 11:42 PM ESTMesoscale DiscussionSPCAllegheny, Beaver, Greene, Lawrence, Washington5 hr
Dec 17, 3:08 AM ESTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Blair, Bradford and 36 more4 hr
Dec 17, 4:21 AM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Delaware and 9 more5 hr
Dec 17, 6:57 AM ESTMesoscale DiscussionSPCLackawanna, Pike, Susquehanna, Wayne, Wyoming5 hr
Dec 18, 2:07 AM ESTMesoscale DiscussionSPCFayette, Greene2 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. January 23, 20166mesoscale discussions
  2. June 16, 20164mesoscale discussions
  3. July 18, 20164mesoscale discussions
  4. July 25, 20164mesoscale discussions
  5. August 16, 20164mesoscale discussions
  6. December 17, 20164mesoscale discussions
  7. June 5, 20163mesoscale discussions
  8. June 28, 20163mesoscale discussions
  9. July 1, 20163mesoscale discussions
  10. February 15, 20162mesoscale discussions
  11. February 24, 20162mesoscale discussions
  12. April 26, 20162mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20152017

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.