Alert archive / Pennsylvania / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Pennsylvania, 2012

31 severe thunderstorm watches in 2012. 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 severe thunderstorm watches reaches back to 1997.

Severe Thunderstorm Watches by county

Each county as a circle sized by its count in 2012. Tap one for its archive.

Severe Thunderstorm Watches
31
Busiest month
July15 severe thunderstorm watches
Busiest day
July 7, 20124 severe thunderstorm watches

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
May 16, 1:18 PM EDTSevere Thunderstorm WatchSPCBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more9 hr
May 26, 2:29 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Columbia, Cumberland and 18 more6 hr
May 27, 1:33 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more5 hr
May 27, 5:21 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more4 hr
May 29, 10:27 AM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 19 more5 hr
May 29, 1:03 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bradford, Carbon and 30 more8 hr
May 29, 5:54 PM EDTSevere Thunderstorm WatchSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia3 hr
Jun 1, 8:24 PM EDTSevere Thunderstorm WatchSPCBradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming3 hr
Jun 22, 1:41 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 26 more7 hr
Jun 25, 6:39 AM EDTSevere Thunderstorm WatchSPCBucks, Chester, Delaware, Montgomery, Philadelphia7 hr
Jun 29, 4:34 AM EDTSevere Thunderstorm WatchSPCBucks, Chester, Delaware, Montgomery, Philadelphia3 hr
Jun 29, 6:34 PM EDTSevere Thunderstorm WatchSPCAllegheny, Bedford, Fayette, Franklin, Fulton, Greene and 3 more6 hr
Jul 1, 1:35 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more6 hr
Jul 4, 4:26 PM EDTSevere Thunderstorm WatchSPCFayette, Greene, Washington6 hr
Jul 4, 10:19 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Butler, Greene, Lawrence, Mercer and 2 more4 hr
Jul 5, 6:16 AM EDTSevere Thunderstorm WatchSPCCrawford, Erie, Lawrence, Mercer3 hr
Jul 7, 11:41 AM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Bucks, Carbon, Columbia, Cumberland and 21 more7 hr
Jul 7, 2:16 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 21 more5 hr
Jul 7, 6:14 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 29 more3 hr
Jul 7, 6:59 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Fayette, Greene, Washington, Westmoreland3 hr
Jul 18, 12:41 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 36 more8 hr
Jul 18, 1:16 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more8 hr
Jul 23, 1:24 PM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 20 more10 hr
Jul 24, 1:08 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Blair, Cambria, Chester, Cumberland and 11 more6 hr
Jul 26, 1:16 PM EDTSevere Thunderstorm WatchSPCAdams, Allegheny, Armstrong, Beaver, Bedford, Blair and 44 more9 hr
Jul 26, 3:57 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more6 hr
Jul 28, 1:36 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 13 more8 hr
Aug 5, 3:36 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Dauphin, Delaware and 9 more5 hr
Aug 9, 4:41 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more5 hr
Sep 7, 3:22 PM EDTSevere Thunderstorm WatchSPCBeaver, Butler, Clarion, Crawford, Erie, Forest and 3 more4 hr
Sep 8, 12:15 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Carbon and 29 more9 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. July 7, 20124severe thunderstorm watches
  2. May 29, 20123severe thunderstorm watches
  3. May 27, 20122severe thunderstorm watches
  4. June 29, 20122severe thunderstorm watches
  5. July 5, 20122severe thunderstorm watches
  6. July 18, 20122severe thunderstorm watches
  7. July 26, 20122severe thunderstorm watches
  8. May 16, 20121severe thunderstorm watches
  9. May 26, 20121severe thunderstorm watches
  10. June 2, 20121severe thunderstorm watches
  11. June 22, 20121severe thunderstorm watches
  12. June 25, 20121severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20112013

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.