Alert archive / Pennsylvania / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Pennsylvania, 2025

34 severe thunderstorm watches in 2025. 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 2025. Tap one for its archive.

Severe Thunderstorm Watches
34
Busiest month
May12 severe thunderstorm watches
Busiest day
May 16, 20253 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
Jan 30, 10:22 AM ESTSevere Thunderstorm WatchSPCBradford, Susquehanna126 days
Mar 16, 1:35 PM EDTSevere Thunderstorm WatchSPCBradford, Lackawanna, Luzerne, Susquehanna, Wyoming5 hr
Mar 30, 10:12 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Greene, Washington5 hr
Apr 3, 12:56 AM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Greene, Lawrence, Mercer, Washington6 hr
Apr 14, 3:25 PM EDTSevere Thunderstorm WatchSPCFayette, Greene8 hr
Apr 29, 3:26 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 46 more6 hr
May 1, 1:22 PM EDTSevere Thunderstorm WatchSPCArmstrong, Beaver, Butler, Clarion, Crawford, Erie and 6 more6 hr
May 1, 6:35 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Blair, Cambria, Centre, Clearfield and 13 more4 hr
May 2, 12:49 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more7 hr
May 3, 4:36 PM EDTSevere Thunderstorm WatchSPCAdams, Lancaster, York5 hr
May 3, 5:51 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more4 hr
May 5, 4:07 PM EDTSevere Thunderstorm WatchSPCAllegheny, Beaver, Butler, Greene, Lawrence, Mercer and 2 more5 hr
May 5, 6:01 PM EDTSevere Thunderstorm WatchSPCAdams, Franklin, York5 hr
May 6, 1:06 PM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Bucks, Carbon, Chester, Columbia and 20 more6 hr
May 16, 10:06 AM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more6 hr
May 16, 2:32 PM EDTSevere Thunderstorm WatchSPCAdams, Allegheny, Armstrong, Bedford, Blair, Butler and 24 more5 hr
May 16, 4:36 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more3 hr
May 16, 9:56 PM EDTSevere Thunderstorm WatchSPCGreene, Washington4 hr
Jun 5, 5:50 PM EDTSevere Thunderstorm WatchSPCBradford, Susquehanna5 hr
Jun 9, 2:46 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Blair, Butler, Cambria and 27 more9 hr
Jun 18, 12:43 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Chester, Delaware, Lancaster and 3 more6 hr
Jun 18, 8:14 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more5 hr
Jun 19, 1:22 PM EDTSevere Thunderstorm WatchSPCLackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming8 hr
Jun 19, 1:46 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 16 more9 hr
Jun 26, 2:20 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Carbon, Chester, Columbia, Cumberland and 19 more8 hr
Jun 28, 11:48 AM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Bedford, Blair, Bradford, Cambria and 38 more8 hr
Jul 1, 12:59 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Carbon and 25 more9 hr
Jul 3, 1:30 PM EDTSevere Thunderstorm WatchSPCBradford, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 15 more7 hr
Jul 8, 1:42 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 12 more7 hr
Jul 9, 2:02 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Franklin, Fulton, Lancaster, York8 hr
Jul 9, 5:31 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more6 hr
Jul 25, 1:41 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Columbia and 23 more7 hr
Jul 31, 1:15 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Bucks, Chester, Cumberland and 12 more7 hr
Sep 6, 1:13 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lancaster and 6 more7 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. May 16, 20253severe thunderstorm watches
  2. June 19, 20253severe thunderstorm watches
  3. May 1, 20252severe thunderstorm watches
  4. May 3, 20252severe thunderstorm watches
  5. May 5, 20252severe thunderstorm watches
  6. July 9, 20252severe thunderstorm watches
  7. January 30, 20251severe thunderstorm watches
  8. March 16, 20251severe thunderstorm watches
  9. March 31, 20251severe thunderstorm watches
  10. April 3, 20251severe thunderstorm watches
  11. April 14, 20251severe thunderstorm watches
  12. April 29, 20251severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20242026

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.