Alert archive / Pennsylvania / Mesoscale Discussions / 2004

Mesoscale Discussions in Pennsylvania, June 2004

31 mesoscale discussions in June 2004. 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 June 2004. Tap one for its archive.

Mesoscale Discussions
31
Busiest day
June 14, 20046 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
Jun 1, 11:11 AM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 39 more64 min
Jun 1, 4:22 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 37 more53 min
Jun 1, 4:56 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Fayette, Greene, Washington34 min
Jun 2, 11:45 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 49 more2 hr
Jun 9, 3:44 PM EDTMesoscale DiscussionSPCCrawford, Erie, Forest, Lawrence, McKean, Mercer and 3 more91 min
Jun 9, 5:27 PM EDTMesoscale DiscussionSPCCrawford, Erie, Forest, McKean, Mercer, Venango and 1 more63 min
Jun 9, 6:54 PM EDTMesoscale DiscussionSPCButler, Clarion, Crawford, Elk, Forest, Lawrence and 5 more96 min
Jun 9, 8:12 PM EDTMesoscale DiscussionSPCBeaver, Butler, Clarion, Jefferson, Lawrence, Mercer and 1 more63 min
Jun 10, 1:31 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 25 more119 min
Jun 10, 4:56 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more94 min
Jun 13, 8:30 PM EDTMesoscale DiscussionSPCCrawford, Erie90 min
Jun 13, 11:08 PM EDTMesoscale DiscussionSPCBeaver, Butler, Crawford, Erie, Forest, Lawrence and 3 more97 min
Jun 14, 2:40 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Washington2 hr
Jun 14, 11:22 AM EDTMesoscale DiscussionSPCBeaver, Butler, Clarion, Crawford, Elk, Erie and 8 more53 min
Jun 14, 3:20 PM EDTMesoscale DiscussionSPCCameron, Clarion, Crawford, Elk, Erie, Forest and 6 more115 min
Jun 14, 4:45 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more2 hr
Jun 14, 8:03 PM EDTMesoscale DiscussionSPCArmstrong, Beaver, Butler, Cameron, Clarion, Elk and 8 more87 min
Jun 14, 10:13 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Carbon, Columbia, Cumberland and 23 more62 min
Jun 15, 2:22 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Greene, Lawrence, Washington113 min
Jun 15, 3:55 PM EDTMesoscale DiscussionSPCAdams, Berks, Bradford, Bucks, Cameron, Carbon and 37 more95 min
Jun 17, 12:05 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Bradford, Butler and 33 more115 min
Jun 17, 4:22 PM EDTMesoscale DiscussionSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 37 more83 min
Jun 17, 7:37 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Delaware and 7 more53 min
Jun 22, 12:08 PM EDTMesoscale DiscussionSPCAdams, Chester, Cumberland, Franklin, Fulton, Lancaster and 2 more97 min
Jun 22, 4:16 PM EDTMesoscale DiscussionSPCBucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more89 min
Jun 22, 7:04 PM EDTMesoscale DiscussionSPCDelaware, Philadelphia56 min
Jun 24, 3:11 PM EDTMesoscale DiscussionSPCCrawford, Erie, Mercer, Venango94 min
Jun 24, 7:44 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 14 more2 hr
Jun 24, 10:28 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 23 more2 hr
Jun 25, 1:08 PM EDTMesoscale DiscussionSPCAdams, Bucks, Chester, Delaware, Lancaster, Montgomery and 2 more2 hr
Jun 25, 4:14 PM EDTMesoscale DiscussionSPCAdams, Berks, Chester, Delaware, Lancaster, Montgomery and 2 more2 hr

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 archive20032005

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.