Alert archive / Pennsylvania / Mesoscale Discussions / 2007

Mesoscale Discussions in Pennsylvania, August 2007

22 mesoscale discussions in August 2007. 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 August 2007. Tap one for its archive.

Mesoscale Discussions
22
Busiest day
August 9, 20075 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
Aug 3, 3:33 PM EDTMesoscale DiscussionSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 4 more87 min
Aug 3, 6:01 PM EDTMesoscale DiscussionSPCBradford, Cameron, Clinton, Columbia, Lackawanna, Luzerne and 11 more59 min
Aug 7, 10:27 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 10 more2 hr
Aug 8, 2:34 AM EDTMesoscale DiscussionSPCBedford, Berks, Blair, Bucks, Carbon, Cumberland and 12 more86 min
Aug 8, 1:14 PM EDTMesoscale DiscussionSPCBeaver, Fayette, Greene, Washington91 min
Aug 8, 6:23 PM EDTMesoscale DiscussionSPCFayette, Greene67 min
Aug 9, 8:47 AM EDTMesoscale DiscussionSPCAdams, Bedford, Cumberland, Franklin, Fulton, Huntingdon and 1 more58 min
Aug 9, 11:54 AM EDTMesoscale DiscussionSPCAllegheny, Beaver, Butler, Fayette, Greene, Lawrence and 3 more2 hr
Aug 9, 2:41 PM EDTMesoscale DiscussionSPCBedford, Cambria, Fayette, Franklin, Fulton, Indiana and 2 more94 min
Aug 9, 5:03 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 4 more87 min
Aug 9, 7:23 PM EDTMesoscale DiscussionSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Berks and 49 more67 min
Aug 17, 1:13 PM EDTMesoscale DiscussionSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 21 more92 min
Aug 17, 3:41 PM EDTMesoscale DiscussionSPCBerks, Bucks, Carbon, Chester, Columbia, Delaware and 8 more94 min
Aug 20, 12:18 PM EDTMesoscale DiscussionSPCGreene, Washington117 min
Aug 20, 4:24 PM EDTMesoscale DiscussionSPCAllegheny, Beaver, Fayette, Greene, Washington, Westmoreland66 min
Aug 20, 7:11 PM EDTMesoscale DiscussionSPCAdams, Bedford, Franklin, Fulton, Somerset, York94 min
Aug 23, 11:17 AM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 12 more88 min
Aug 23, 5:30 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 15 more60 min
Aug 24, 4:13 PM EDTMesoscale DiscussionSPCBradford, Cameron, Clarion, Clearfield, Clinton, Crawford and 9 more92 min
Aug 25, 2:57 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Clearfield and 13 more93 min
Aug 25, 9:11 PM EDTMesoscale DiscussionSPCAdams, Bedford, Blair, Cambria, Centre, Clearfield and 15 more94 min
Aug 30, 2:20 PM EDTMesoscale DiscussionSPCAllegheny, Armstrong, Bedford, Blair, Bradford, Cambria and 26 more115 min

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 archive20062008

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.