Alert archive / Pennsylvania / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Pennsylvania, 1997

27 severe thunderstorm watches in 1997. 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 1997. Tap one for its archive.

Severe Thunderstorm Watches
27
Busiest month
May9 severe thunderstorm watches
Busiest day
August 16, 19975 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
Mar 29, 12:15 PM ESTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Chester, Cumberland, Dauphin and 7 more6 hr
May 1, 4:00 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 11 more6 hr
May 3, 1:30 PM EDTSevere Thunderstorm WatchSPCAdams, Armstrong, Bedford, Blair, Bradford, Cambria and 30 more7 hr
May 3, 4:30 PM EDTSevere Thunderstorm WatchSPCBerks, Bucks, Carbon, Chester, Delaware, Lackawanna and 14 more6 hr
May 6, 9:30 AM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bradford, Carbon and 28 more6 hr
May 6, 11:45 AM EDTSevere Thunderstorm WatchSPCBucks, Chester, Delaware, Montgomery, Northampton, Philadelphia5 hr
May 18, 3:45 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Butler, Crawford, Erie and 5 more6 hr
May 19, 5:15 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 32 more6 hr
May 19, 8:00 PM EDTSevere Thunderstorm WatchSPCBerks, Carbon, Columbia, Dauphin, Lackawanna, Lebanon and 11 more4 hr
May 19, 9:45 PM EDTSevere Thunderstorm WatchSPCBucks3 hr
Jun 18, 2:30 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 21 more6 hr
Jun 18, 5:30 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Carbon, Columbia, Cumberland, Dauphin and 18 more6 hr
Jun 22, 2:00 PM EDTSevere Thunderstorm WatchSPCCarbon, Lehigh, Monroe, Northampton, Pike, Schuylkill and 1 more5 hr
Jun 25, 6:30 PM EDTSevere Thunderstorm WatchSPCBradford, Crawford, Erie, Lackawanna, McKean, Potter and 5 more6 hr
Jul 2, 8:00 PM EDTSevere Thunderstorm WatchSPCFayette, Greene, Somerset6 hr
Jul 2, 9:00 PM EDTSevere Thunderstorm WatchSPCCameron, Crawford, Elk, Erie, Forest, McKean and 3 more5 hr
Jul 9, 1:15 PM EDTSevere Thunderstorm WatchSPCAdams, Berks, Bucks, Carbon, Chester, Cumberland and 16 more7 hr
Jul 18, 1:45 PM EDTSevere Thunderstorm WatchSPCBradford, Cameron, Clarion, Clinton, Crawford, Elk and 11 more6 hr
Jul 18, 4:45 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Berks, Blair, Bucks, Cambria and 37 more6 hr
Jul 28, 1:30 PM EDTSevere Thunderstorm WatchSPCBedford, Fayette, Greene, Somerset, Washington6 hr
Aug 16, 8:15 AM EDTSevere Thunderstorm WatchSPCCrawford, Erie4 hr
Aug 16, 11:00 AM EDTSevere Thunderstorm WatchSPCBradford, Cameron, Clarion, Clinton, Crawford, Elk and 12 more6 hr
Aug 16, 3:00 PM EDTSevere Thunderstorm WatchSPCBerks, Bradford, Bucks, Carbon, Columbia, Dauphin and 21 more6 hr
Aug 16, 4:15 PM EDTSevere Thunderstorm WatchSPCButler, Clarion, Crawford, Erie, Lawrence, Mercer and 1 more6 hr
Aug 16, 7:30 PM EDTSevere Thunderstorm WatchSPCAllegheny, Armstrong, Beaver, Bedford, Blair, Butler and 20 more5 hr
Aug 17, 4:30 PM EDTSevere Thunderstorm WatchSPCAdams, Bedford, Cumberland, Franklin, Fulton, Lancaster and 3 more7 hr
Aug 17, 6:00 PM EDTSevere Thunderstorm WatchSPCChester, Delaware, Philadelphia6 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. August 16, 19975severe thunderstorm watches
  2. May 3, 19972severe thunderstorm watches
  3. May 6, 19972severe thunderstorm watches
  4. May 20, 19972severe thunderstorm watches
  5. June 18, 19972severe thunderstorm watches
  6. July 3, 19972severe thunderstorm watches
  7. July 18, 19972severe thunderstorm watches
  8. August 17, 19972severe thunderstorm watches
  9. March 29, 19971severe thunderstorm watches
  10. May 1, 19971severe thunderstorm watches
  11. May 18, 19971severe thunderstorm watches
  12. May 19, 19971severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive19961998

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.