Alert archive / Pennsylvania / Tornado Warnings

Tornado Warnings in Pennsylvania, 2011

67 tornado warnings in 2011. 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 tornado warnings reaches back to 1986.

Tornado Warnings by county

Each county as a circle sized by its count in 2011. Tap one for its archive.

Tornado Warnings
67
Busiest month
May21 tornado warnings
Busiest day
April 28, 20119 tornado warnings

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 23, 4:37 PM EDTTornado WarningPBZWestmoreland23 min
Mar 23, 4:54 PM EDTTornado WarningPBZIndiana, Westmoreland36 min
Mar 23, 5:09 PM EDTTornado WarningCTPCambria, Somerset36 min
Apr 16, 8:05 PM EDTTornado WarningCTPAdams, York25 min
Apr 16, 8:29 PM EDTTornado WarningCTPLancaster, York31 min
Apr 25, 2:37 PM EDTTornado WarningPBZArmstrong, Clarion, Jefferson23 min
Apr 25, 5:50 PM EDTTornado WarningPBZForest25 min
Apr 27, 5:57 PM EDTTornado WarningCTPFranklin, Fulton, Huntingdon33 min
Apr 27, 5:59 PM EDTTornado WarningCTPCameron, Potter31 min
Apr 27, 6:29 PM EDTTornado WarningCTPCumberland, Franklin, Perry31 min
Apr 27, 6:30 PM EDTTornado WarningCTPPotter, Tioga30 min
Apr 27, 6:40 PM EDTTornado WarningCTPCentre, Clinton, Mifflin, Union35 min
Apr 27, 8:09 PM EDTTornado WarningCTPLycoming, Sullivan26 min
Apr 28, 5:35 AM EDTTornado WarningCTPAdams, Cumberland, York25 min
Apr 28, 5:46 AM EDTTornado WarningBGMSusquehanna, Wayne44 min
Apr 28, 8:21 AM EDTTornado WarningCTPYork24 min
Apr 28, 8:44 AM EDTTornado WarningCTPLancaster, York14 min
Apr 28, 9:30 AM EDTTornado WarningCTPLancaster, York15 min
Apr 28, 9:58 AM EDTTornado WarningCTPYork21 min
Apr 28, 10:13 AM EDTTornado WarningCTPLancaster, York32 min
Apr 28, 10:58 AM EDTTornado WarningPHIBucks, Northampton32 min
May 17, 8:17 PM EDTTornado WarningCTPFranklin, Fulton28 min
May 17, 8:45 PM EDTTornado WarningCTPFranklin, Fulton45 min
May 18, 1:52 PM EDTTornado WarningPHIBucks, Montgomery, Philadelphia24 min
May 23, 4:13 PM EDTTornado WarningCTPHuntingdon, Juniata, Mifflin32 min
May 23, 5:15 PM EDTTornado WarningCTPJuniata, Northumberland, Snyder30 min
May 23, 5:49 PM EDTTornado WarningCTPDauphin, Northumberland, Schuylkill41 min
May 23, 7:30 PM EDTTornado WarningPHICarbon, Lehigh, Monroe, Northampton30 min
May 23, 7:58 PM EDTTornado WarningPHIBucks, Lehigh, Northampton32 min
May 23, 9:07 PM EDTTornado WarningPBZMercer38 min
May 23, 11:39 PM EDTTornado WarningCTPMcKean36 min
May 25, 8:34 PM EDTTornado WarningCLEErie56 min
May 26, 4:53 PM EDTTornado WarningCLECrawford, Erie52 min
May 26, 5:07 PM EDTTornado WarningCTPAdams, Cumberland, Franklin, Fulton68 min
May 26, 6:11 PM EDTTornado WarningCTPAdams, Cumberland, Franklin, Fulton49 min
May 26, 7:14 PM EDTTornado WarningBGMBradford46 min
May 26, 7:54 PM EDTTornado WarningCTPDauphin, Lebanon, Schuylkill36 min
May 27, 5:44 PM EDTTornado WarningCTPBedford46 min
May 27, 5:46 PM EDTTornado WarningCTPBedford, Fulton, Huntingdon59 min
May 27, 6:01 PM EDTTornado WarningCTPTioga59 min
May 27, 6:15 PM EDTTornado WarningCTPBedford, Fulton45 min
May 27, 8:36 PM EDTTornado WarningCTPLycoming, Montour, Sullivan39 min
Jun 4, 12:24 PM EDTTornado WarningCLEErie38 min
Jun 11, 6:18 PM EDTTornado WarningBGMSusquehanna27 min
Jun 11, 6:40 PM EDTTornado WarningBGMLackawanna, Susquehanna, Wyoming35 min
Jun 11, 6:58 PM EDTTornado WarningCTPLebanon47 min
Jun 11, 7:15 PM EDTTornado WarningCTPDauphin, Lebanon45 min
Jun 11, 7:42 PM EDTTornado WarningCTPLancaster, Lebanon48 min
Jun 11, 7:49 PM EDTTornado WarningCTPLancaster, Lebanon41 min
Jun 11, 7:56 PM EDTTornado WarningCTPLancaster, York49 min
Jun 12, 2:49 PM EDTTornado WarningCTPDauphin, Lancaster, York26 min
Jun 12, 3:16 PM EDTTornado WarningCTPLancaster, York44 min
Jun 12, 3:47 PM EDTTornado WarningCTPYork13 min
Jul 25, 11:43 AM EDTTornado WarningCLEErie32 min
Jul 29, 3:59 PM EDTTornado WarningBGMLackawanna, Susquehanna, Wayne46 min
Jul 29, 4:36 PM EDTTornado WarningBGMPike, Wayne39 min
Jul 29, 5:11 PM EDTTornado WarningBGMPike49 min
Aug 9, 12:32 PM EDTTornado WarningPHIDelaware28 min
Aug 21, 2:15 PM EDTTornado WarningCTPCentre, Mifflin, Snyder, Union21 min
Aug 27, 9:29 PM EDTTornado WarningPHIDelaware31 min
Aug 27, 10:14 PM EDTTornado WarningPHIChester, Delaware31 min
Aug 27, 10:23 PM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia37 min
Aug 27, 10:36 PM EDTTornado WarningPHIBucks, Montgomery, Philadelphia24 min
Aug 27, 11:22 PM EDTTornado WarningPHIBucks, Montgomery23 min
Sep 1, 8:29 PM EDTTornado WarningCTPCameron, Clinton, Potter46 min
Sep 1, 9:13 PM EDTTornado WarningCTPCameron62 min
Nov 14, 4:49 PM ESTTornado WarningCLEErie41 min

By county

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

12 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 28, 20119tornado warnings
  2. June 11, 20117tornado warnings
  3. May 26, 20116tornado warnings
  4. April 27, 20115tornado warnings
  5. May 23, 20115tornado warnings
  6. August 28, 20115tornado warnings
  7. May 27, 20114tornado warnings
  8. March 23, 20113tornado warnings
  9. May 18, 20113tornado warnings
  10. June 12, 20113tornado warnings
  11. July 29, 20113tornado warnings
  12. April 17, 20112tornado warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20102012

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. Rebuilt daily.