Alert archive / Pennsylvania / Mesoscale Discussions

Mesoscale Discussions in Pennsylvania, 2010

156 mesoscale discussions in 2010. 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 2010. Tap one for its archive.

Mesoscale Discussions
156
Busiest month
June41 mesoscale discussions
Busiest day
June 4, 20106 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
Feb 5, 11:45 AM ESTMesoscale DiscussionSPCAdams, Franklin, Fulton4 hr
Feb 5, 11:49 AM ESTMesoscale DiscussionSPCGreene, Washington5 hr
Feb 5, 6:58 PM ESTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Cambria, Chester and 17 more4 hr
Feb 6, 12:03 PM ESTMesoscale DiscussionSPCDelaware, Philadelphia4 hr
Feb 9, 7:04 PM ESTMesoscale DiscussionSPCChester, Delaware, Montgomery, Philadelphia4 hr
Feb 10, 7:27 AM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 19 more5 hr
Feb 10, 12:20 PM ESTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 12 more4 hr
Feb 15, 1:41 PM ESTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 18 more5 hr
Feb 25, 7:39 AM ESTMesoscale DiscussionSPCPike6 hr
Feb 25, 3:11 PM ESTMesoscale DiscussionSPCBradford, Carbon, Lackawanna, Luzerne, Sullivan, Susquehanna and 1 more3 hr
Feb 25, 7:46 PM ESTMesoscale DiscussionSPCLackawanna, Pike, Wayne3 hr
Feb 26, 12:44 AM ESTMesoscale DiscussionSPCBradford, Bucks, Carbon, Lackawanna, Lehigh, Luzerne and 7 more4 hr
Mar 22, 12:44 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 12 more2 hr
Mar 22, 6:53 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 19 more3 hr
Apr 6, 5:20 AM EDTMesoscale DiscussionSPCBlair, Cambria, Cameron, Centre, Clearfield, Elk and 6 more85 min
Apr 6, 1:29 PM EDTMesoscale DiscussionSPCErie61 min
Apr 8, 2:57 PM EDTMesoscale DiscussionSPCBradford, Cameron, Centre, Clinton, Columbia, Lackawanna and 10 more63 min
Apr 8, 7:35 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Lackawanna, Luzerne, Monroe and 6 more115 min
Apr 8, 9:00 PM EDTMesoscale DiscussionSPCPike, Wayne60 min
Apr 16, 12:44 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 16 more2 hr
Apr 16, 4:34 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 37 more86 min
Apr 16, 6:14 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 34 more61 min
Apr 25, 10:56 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 12 more2 hr
Apr 25, 2:26 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 16 more94 min
Apr 25, 6:16 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Cameron, Centre and 18 more89 min
Apr 25, 8:53 PM EDTMesoscale DiscussionSPCAdams, Cumberland2 hr
May 2, 4:45 PM EDTMesoscale DiscussionSPCAdams, Bedford, Franklin, Fulton60 min
May 2, 8:27 PM EDTMesoscale DiscussionSPCAdams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 6 more63 min
May 4, 10:53 AM EDTMesoscale DiscussionSPCBradford, Cameron, Centre, Clearfield, Clinton, Columbia and 12 more97 min
May 4, 4:44 PM EDTMesoscale DiscussionSPCLackawanna, Pike, Susquehanna, Wayne2 hr
May 5, 7:09 PM EDTMesoscale DiscussionSPCCrawford, Erie, Mercer96 min
May 7, 7:25 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Lawrence, Mercer and 2 more95 min
May 7, 9:17 PM EDTMesoscale DiscussionSPCBeaver, Butler, Clarion, Crawford, Erie, Forest and 4 more58 min
May 7, 11:42 PM EDTMesoscale DiscussionSPCArmstrong, Cameron, Centre, Clarion, Clearfield, Clinton and 12 more63 min
May 8, 2:36 AM EDTMesoscale DiscussionSPCBlair, Cambria, Cameron, Centre, Clearfield, Clinton and 10 more54 min
May 13, 8:30 PM EDTMesoscale DiscussionSPCElk, Erie, McKean, Warren90 min
May 14, 1:48 AM EDTMesoscale DiscussionSPCLawrence87 min
May 14, 3:48 AM EDTMesoscale DiscussionSPCArmstrong, Butler, Clarion, Lawrence, Mercer, Venango87 min
May 14, 11:56 AM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Centre, Cumberland and 11 more2 hr
May 14, 6:35 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Delaware and 6 more55 min
May 27, 11:28 AM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Centre and 32 more92 min
May 27, 4:13 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Chester and 25 more62 min
May 27, 8:08 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 15 more97 min
May 29, 3:54 PM EDTMesoscale DiscussionSPCBerks, Carbon, Columbia, Lackawanna, Lebanon, Lehigh and 11 more96 min
Jun 2, 1:09 PM EDTMesoscale DiscussionSPCBeaver, Butler, Lawrence, Mercer, Venango, Washington66 min
Jun 2, 4:14 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 14 more91 min
Jun 2, 7:19 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Fayette, Washington, Westmoreland56 min
Jun 3, 11:27 AM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 13 more93 min
Jun 3, 3:36 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 3 more54 min
Jun 3, 6:28 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Cumberland, Dauphin, Delaware and 8 more62 min
Jun 4, 12:15 PM EDTMesoscale DiscussionSPCWashington60 min
Jun 4, 1:09 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Cumberland, Dauphin and 11 more66 min
Jun 4, 3:45 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Lawrence, Mercer, Venango60 min
Jun 4, 4:24 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 19 more66 min
Jun 4, 7:03 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 28 more57 min
Jun 4, 7:30 PM EDTMesoscale DiscussionSPCFayette, Greene, Washington60 min
Jun 5, 8:51 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Greene, Washington114 min
Jun 5, 1:35 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more85 min
Jun 5, 7:14 PM EDTMesoscale DiscussionSPCGreene61 min
Jun 5, 7:30 PM EDTMesoscale DiscussionSPCWayne60 min
Jun 6, 12:30 AM EDTMesoscale DiscussionSPCCrawford, Erie3 hr
Jun 6, 3:38 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bradford, Butler, Cambria and 23 more2 hr
Jun 6, 7:05 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 37 more115 min
Jun 6, 10:25 AM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Cumberland, Dauphin and 10 more65 min
Jun 6, 2:38 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Lehigh, Montgomery, Northampton and 1 more67 min
Jun 12, 2:02 PM EDTMesoscale DiscussionSPCBradford, Lackawanna, Luzerne, Lycoming, McKean, Potter and 5 more118 min
Jun 13, 12:58 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 5 more2 hr
Jun 16, 1:39 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 27 more96 min
Jun 19, 6:04 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Clearfield and 10 more56 min
Jun 22, 11:35 AM EDTMesoscale DiscussionSPCAdams, Armstrong, Bedford, Berks, Blair, Bradford and 36 more25 min
Jun 22, 3:48 PM EDTMesoscale DiscussionSPCAdams, Berks, Blair, Bradford, Cameron, Carbon and 33 more27 min
Jun 22, 6:59 PM EDTMesoscale DiscussionSPCBucks, Delaware, Philadelphia61 min
Jun 23, 11:52 AM EDTMesoscale DiscussionSPCCrawford, Lawrence, Mercer53 min
Jun 23, 3:13 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Crawford, Erie, Fayette and 4 more92 min
Jun 23, 6:38 PM EDTMesoscale DiscussionSPCArmstrong, Bedford, Blair, Cambria, Cameron, Centre and 17 more97 min
Jun 24, 12:13 AM EDTMesoscale DiscussionSPCErie62 min
Jun 24, 9:38 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Berks, Blair and 44 more97 min
Jun 24, 12:16 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Bedford, Berks, Blair and 47 more89 min
Jun 24, 3:07 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Delaware and 12 more53 min
Jun 27, 3:49 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more116 min
Jun 27, 8:12 PM EDTMesoscale DiscussionSPCBeaver, Butler, Cameron, Clarion, Crawford, Elk and 9 more93 min
Jun 28, 12:05 PM EDTMesoscale DiscussionSPCCrawford, Erie, Warren55 min
Jun 28, 12:26 PM EDTMesoscale DiscussionSPCAdams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 6 more2 hr
Jun 28, 12:49 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 8 more56 min
Jun 28, 3:53 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 11 more2 hr
Jul 9, 4:21 PM EDTMesoscale DiscussionSPCBedford, Blair, Bradford, Cambria, Cameron, Centre and 11 more114 min
Jul 16, 1:23 PM EDTMesoscale DiscussionSPCBradford, Carbon, Columbia, Cumberland, Dauphin, Franklin and 16 more97 min
Jul 18, 7:29 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Lawrence, Mercer91 min
Jul 19, 1:17 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Chester, Clinton and 24 more58 min
Jul 19, 7:39 PM EDTMesoscale DiscussionSPCBucks, Delaware, Montgomery, Philadelphia96 min
Jul 21, 10:43 AM EDTMesoscale DiscussionSPCBradford, Cameron, Forest, Lackawanna, McKean, Potter and 6 more2 hr
Jul 21, 12:38 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Dauphin, Delaware, Lancaster and 6 more67 min
Jul 21, 1:59 PM EDTMesoscale DiscussionSPCBradford, Cameron, Carbon, Centre, Clearfield, Clinton and 21 more61 min
Jul 21, 3:41 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Cameron, Carbon, Centre and 39 more64 min
Jul 21, 7:00 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 41 more90 min
Jul 23, 12:14 PM EDTMesoscale DiscussionSPCBradford, Cameron, Clarion, Crawford, Elk, Forest and 12 more91 min
Jul 23, 6:23 PM EDTMesoscale DiscussionSPCArmstrong, Berks, Blair, Bucks, Centre, Chester and 23 more67 min
Jul 23, 7:00 PM EDTMesoscale DiscussionSPCButler, Crawford, Erie, Forest, Lawrence, Mercer and 2 more60 min
Jul 23, 9:06 PM EDTMesoscale DiscussionSPCArmstrong, Blair, Cambria, Cameron, Centre, Clarion and 23 more54 min
Jul 23, 10:45 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Butler, Clarion, Clearfield, Crawford and 7 more90 min
Jul 24, 4:02 PM EDTMesoscale DiscussionSPCBradford, Erie, McKean, Potter, Susquehanna, Tioga and 2 more58 min
Jul 24, 5:34 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Lawrence, Mercer, Venango86 min
Jul 24, 6:22 PM EDTMesoscale DiscussionSPCBradford, Cameron, Clinton, Columbia, Elk, Lackawanna and 11 more53 min
Jul 24, 8:23 PM EDTMesoscale DiscussionSPCBerks, Bucks, Lehigh, Monroe, Montgomery, Northampton67 min
Jul 24, 9:36 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Lawrence54 min
Jul 24, 10:22 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Columbia, Lehigh, Mifflin and 7 more83 min
Jul 25, 10:48 AM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 36 more27 min
Jul 25, 12:50 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 30 more55 min
Jul 25, 3:25 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Philadelphia65 min
Jul 28, 4:21 PM EDTMesoscale DiscussionSPCCrawford, Erie, Forest, McKean, Mercer, Venango and 1 more114 min
Aug 4, 1:58 PM EDTMesoscale DiscussionSPCGreene62 min
Aug 4, 3:52 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Fayette, Greene, Indiana, Washington and 1 more53 min
Aug 4, 5:30 PM EDTMesoscale DiscussionSPCAdams, Bedford, Franklin, Fulton30 min
Aug 4, 7:48 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Cumberland, Dauphin and 11 more87 min
Aug 4, 9:26 PM EDTMesoscale DiscussionSPCBeaver64 min
Aug 4, 11:52 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Butler, Cambria and 13 more113 min
Aug 5, 7:38 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Butler, Cameron, Clarion, Crawford and 10 more2 hr
Aug 12, 1:52 PM EDTMesoscale DiscussionSPCBedford, Fayette, Franklin, Fulton, Somerset, Westmoreland83 min
Aug 14, 1:15 PM EDTMesoscale DiscussionSPCBeaver, Lawrence2 hr
Aug 16, 5:09 AM EDTMesoscale DiscussionSPCBradford, Cameron, Clearfield, Clinton, Elk, Lackawanna and 8 more2 hr
Aug 16, 8:40 AM EDTMesoscale DiscussionSPCBradford, Carbon, Centre, Clinton, Columbia, Dauphin and 18 more2 hr
Aug 16, 11:14 AM EDTMesoscale DiscussionSPCBlair, Bradford, Cambria, Carbon, Centre, Clinton and 22 more2 hr
Aug 16, 2:17 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 19 more88 min
Aug 16, 7:16 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 11 more59 min
Aug 22, 3:19 PM EDTMesoscale DiscussionSPCBucks, Philadelphia56 min
Sep 13, 12:51 PM EDTMesoscale DiscussionSPCBradford, Carbon, Lackawanna, Luzerne, Monroe, Northampton and 5 more84 min
Sep 13, 4:03 PM EDTMesoscale DiscussionSPCBradford, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 9 more87 min
Sep 13, 6:06 PM EDTMesoscale DiscussionSPCBucks, Carbon, Lehigh, Monroe, Northampton, Pike54 min
Sep 16, 4:29 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Erie, Lawrence, Mercer and 2 more91 min
Sep 16, 4:37 PM EDTMesoscale DiscussionSPCDelaware, Philadelphia53 min
Sep 16, 6:04 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more56 min
Sep 22, 1:26 PM EDTMesoscale DiscussionSPCArmstrong, Berks, Blair, Bradford, Bucks, Cambria and 38 more94 min
Sep 22, 3:10 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 14 more65 min
Sep 22, 4:46 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 31 more59 min
Sep 22, 7:14 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Bucks, Carbon, Chester and 19 more61 min
Sep 27, 1:03 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Delaware, Franklin, Lancaster and 1 more87 min
Sep 28, 8:00 AM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Carbon, Centre and 33 more2 hr
Sep 28, 1:50 PM EDTMesoscale DiscussionSPCBucks, Carbon, Chester, Delaware, Lackawanna, Lehigh and 7 more55 min
Sep 30, 10:49 AM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Dauphin, Delaware and 10 more116 min
Sep 30, 3:16 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Dauphin and 12 more119 min
Sep 30, 8:29 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lehigh, Monroe and 4 more91 min
Oct 1, 12:01 AM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia89 min
Oct 1, 2:04 AM EDTMesoscale DiscussionSPCBucks, Philadelphia26 min
Oct 11, 3:19 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Berks, Blair, Bradford, Bucks and 46 more56 min
Oct 11, 6:07 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 19 more83 min
Oct 11, 8:15 PM EDTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Columbia, Dauphin and 15 more60 min
Oct 26, 1:09 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 13 more66 min
Oct 26, 5:45 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 13 more90 min
Oct 27, 11:54 AM EDTMesoscale DiscussionSPCDelaware, Philadelphia66 min
Nov 25, 5:02 AM ESTMesoscale DiscussionSPCCameron, Centre, Clearfield, Clinton, Elk, Jefferson and 5 more4 hr
Dec 1, 6:55 AM ESTMesoscale DiscussionSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 22 more65 min
Dec 1, 10:52 AM ESTMesoscale DiscussionSPCBradford, Clinton, Lycoming, Potter, Tioga4 hr
Dec 26, 6:56 AM ESTMesoscale DiscussionSPCBucks, Philadelphia6 hr
Dec 26, 12:31 PM ESTMesoscale DiscussionSPCBucks, Philadelphia6 hr
Dec 26, 6:26 PM ESTMesoscale DiscussionSPCPike6 hr
Dec 27, 2:49 AM ESTMesoscale DiscussionSPCBucks, Chester, Delaware, Lehigh, Montgomery, Northampton and 1 more4 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. June 4, 20106mesoscale discussions
  2. July 25, 20106mesoscale discussions
  3. May 14, 20105mesoscale discussions
  4. June 6, 20105mesoscale discussions
  5. June 28, 20105mesoscale discussions
  6. July 21, 20105mesoscale discussions
  7. July 24, 20105mesoscale discussions
  8. August 16, 20105mesoscale discussions
  9. June 5, 20104mesoscale discussions
  10. June 24, 20104mesoscale discussions
  11. August 4, 20104mesoscale discussions
  12. September 22, 20104mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20092011

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.