Alert archive / Pennsylvania / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Pennsylvania, 2001

28 severe thunderstorm watches in 2001. 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 2001. Tap one for its archive.

Severe Thunderstorm Watches
28
Busiest month
June8 severe thunderstorm watches
Busiest day
April 9, 20014 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 8, 3:45 PM EDTSevere Thunderstorm WatchSPCAllegheny, Fayette, Greene, Washington5 hr
Apr 9, 11:00 AM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 15 more6 hr
Apr 9, 2:30 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Cameron, Centre and 22 more6 hr
Apr 9, 5:00 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 9 more5 hr
Apr 9, 7:00 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Carbon and 27 more5 hr
May 27, 1:15 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bradford, Carbon, Centre, Chester and 27 more6 hr
Jun 11, 5:45 PM EDTSevere Thunderstorm WatchSPCLackawanna, Monroe, Northampton, Pike, Susquehanna, Wayne5 hr
Jun 12, 3:30 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Cambria, Centre and 18 more6 hr
Jun 12, 5:00 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Fayette, Greene, Indiana and 3 more4 hr
Jun 20, 1:15 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bradford, Carbon, Columbia, Cumberland and 25 more5 hr
Jun 20, 5:30 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Delaware, Lancaster, Lehigh and 6 more6 hr
Jun 21, 4:00 PM EDTSevere Thunderstorm WatchSPCCrawford6 hr
Jun 22, 2:00 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Chester, Cumberland, Dauphin, Franklin and 9 more5 hr
Jun 22, 7:00 PM EDTSevere Thunderstorm WatchSPCChester, Delaware, Lancaster, Philadelphia, York4 hr
Jul 1, 12:00 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 11 more6 hr
Jul 1, 12:00 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bradford, Bucks and 42 more6 hr
Jul 1, 4:30 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Bucks, Chester, Cumberland and 11 more5 hr
Jul 10, 1:45 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 18 more7 hr
Jul 10, 3:00 PM EDTSevere Thunderstorm WatchSPCCarbon, Monroe, Pike, Wayne5 hr
Jul 10, 4:00 PM EDTSevere Thunderstorm WatchSPCAllegheny, Fayette, Greene, Washington, Westmoreland7 hr
Jul 11, 3:30 AM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bradford, Cambria and 32 more6 hr
Jul 11, 5:30 AM EDTSevere Thunderstorm WatchSPCBucks, Lehigh, Monroe, Montgomery, Northampton, Pike5 hr
Aug 10, 12:45 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 15 more7 hr
Aug 19, 3:15 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 23 more5 hr
Aug 19, 6:15 PM EDTSevere Thunderstorm WatchSPCBradford, Clinton, Columbia, Dauphin, Juniata, Luzerne and 12 more4 hr
Aug 31, 3:15 PM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Carbon, Columbia, Dauphin, Juniata and 18 more6 hr
Sep 4, 3:00 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Chester, Dauphin, Delaware, Lancaster and 7 more6 hr
Oct 24, 10:45 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 13 more5 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

26 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 9, 20014severe thunderstorm watches
  2. July 1, 20013severe thunderstorm watches
  3. July 10, 20013severe thunderstorm watches
  4. June 12, 20012severe thunderstorm watches
  5. June 20, 20012severe thunderstorm watches
  6. June 22, 20012severe thunderstorm watches
  7. July 11, 20012severe thunderstorm watches
  8. August 19, 20012severe thunderstorm watches
  9. April 8, 20011severe thunderstorm watches
  10. May 27, 20011severe thunderstorm watches
  11. June 11, 20011severe thunderstorm watches
  12. June 21, 20011severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20002002

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.