Alert archive / Pennsylvania / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Pennsylvania, 2015

24 severe thunderstorm watches in 2015. 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 2015. Tap one for its archive.

Severe Thunderstorm Watches
24
Busiest month
June15 severe thunderstorm watches
Busiest day
June 23, 20155 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
Apr 9, 4:29 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more6 hr
Apr 20, 7:56 PM EDTSevere Thunderstorm WatchSPCBradford, Carbon, Lackawanna, Luzerne, Monroe, Northampton and 4 more4 hr
May 11, 5:47 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Butler, Clarion, Crawford, Erie and 7 more4 hr
May 11, 8:18 PM EDTSevere Thunderstorm WatchSPCCameron, Elk, McKean, Potter, Warren4 hr
May 27, 12:54 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 22 more6 hr
Jun 12, 1:14 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 16 more8 hr
Jun 12, 2:54 PM EDTSevere Thunderstorm WatchSPCMcKean, Potter, Tioga, Warren6 hr
Jun 12, 7:25 PM EDTSevere Thunderstorm WatchSPCBedford, Blair, Bradford, Cambria, Centre, Columbia and 17 more4 hr
Jun 14, 1:46 PM EDTSevere Thunderstorm WatchSPCCrawford, Erie7 hr
Jun 18, 4:26 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Fayette, Greene, Lawrence, Washington and 1 more7 hr
Jun 20, 2:23 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Fayette, Franklin, Fulton, Greene and 4 more9 hr
Jun 20, 8:56 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Jun 22, 4:47 PM EDTSevere Thunderstorm WatchSPCCrawford, Erie, Lawrence, Mercer, Venango3 hr
Jun 23, 3:30 AM EDTSevere Thunderstorm WatchSPCCrawford, Erie3 hr
Jun 23, 6:08 AM EDTSevere Thunderstorm WatchSPCBradford, Cameron, Centre, Clearfield, Clinton, Elk and 11 more4 hr
Jun 23, 10:20 AM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 30 more7 hr
Jun 23, 1:17 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more7 hr
Jun 23, 4:09 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more7 hr
Jun 30, 12:58 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more8 hr
Jun 30, 1:21 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 44 more7 hr
Jul 9, 4:57 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 8 more5 hr
Jul 14, 12:40 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more7 hr
Jul 19, 3:18 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 31 more7 hr
Oct 9, 3:34 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 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 23, 20155severe thunderstorm watches
  2. June 12, 20153severe thunderstorm watches
  3. June 30, 20152severe thunderstorm watches
  4. April 9, 20151severe thunderstorm watches
  5. April 20, 20151severe thunderstorm watches
  6. May 11, 20151severe thunderstorm watches
  7. May 12, 20151severe thunderstorm watches
  8. May 27, 20151severe thunderstorm watches
  9. June 14, 20151severe thunderstorm watches
  10. June 18, 20151severe thunderstorm watches
  11. June 20, 20151severe thunderstorm watches
  12. June 21, 20151severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20142016

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.