Alert archive / Pennsylvania / Tornado Warnings

Tornado Warnings in Pennsylvania, 2021

65 tornado warnings in 2021. 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 2021. Tap one for its archive.

Tornado Warnings
65
Busiest month
July25 tornado warnings
Busiest day
July 29, 202113 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
May 3, 8:54 PM EDTTornado WarningPBZLawrence36 min
May 3, 9:29 PM EDTTornado WarningPBZButler, Lawrence31 min
May 4, 2:49 PM EDTTornado WarningCTPElk26 min
May 4, 2:56 PM EDTTornado WarningPBZJefferson19 min
Jun 21, 2:51 PM EDTTornado WarningPBZAllegheny, Beaver, Butler9 min
Jun 21, 2:58 PM EDTTornado WarningPBZAllegheny, Butler17 min
Jun 21, 5:03 PM EDTTornado WarningPBZGreene6 min
Jul 1, 5:02 PM EDTTornado WarningPHIBucks28 min
Jul 11, 4:41 PM EDTTornado WarningPBZJefferson14 min
Jul 11, 5:10 PM EDTTornado WarningCTPCameron, Elk24 min
Jul 11, 6:16 PM EDTTornado WarningCTPCentre, Clinton29 min
Jul 11, 6:48 PM EDTTornado WarningCTPCentre, Clinton27 min
Jul 11, 7:39 PM EDTTornado WarningCTPClinton, Lycoming36 min
Jul 11, 8:52 PM EDTTornado WarningCTPDauphin23 min
Jul 12, 7:08 PM EDTTornado WarningBGMSusquehanna, Wayne37 min
Jul 12, 7:36 PM EDTTornado WarningBGMBradford24 min
Jul 12, 7:45 PM EDTTornado WarningBGMWayne30 min
Jul 12, 7:59 PM EDTTornado WarningBGMBradford17 min
Jul 13, 8:51 PM EDTTornado WarningCTPLycoming, Montour, Northumberland24 min
Jul 29, 11:45 AM EDTTornado WarningCLECrawford, Erie27 min
Jul 29, 1:58 PM EDTTornado WarningPBZFayette, Westmoreland22 min
Jul 29, 2:13 PM EDTTornado WarningCTPSomerset32 min
Jul 29, 4:03 PM EDTTornado WarningPHIBerks, Lehigh, Northampton27 min
Jul 29, 4:27 PM EDTTornado WarningPHILehigh, Northampton16 min
Jul 29, 4:56 PM EDTTornado WarningPHIBucks, Lehigh, Northampton34 min
Jul 29, 5:08 PM EDTTornado WarningPHIBucks37 min
Jul 29, 5:32 PM EDTTornado WarningPHIBucks28 min
Jul 29, 5:48 PM EDTTornado WarningPBZGreene, Washington27 min
Jul 29, 5:51 PM EDTTornado Warning Tornado observedConsiderable damage threatPHIBucks24 min
Jul 29, 5:59 PM EDTTornado Warning Tornado observedPBZWashington31 min
Jul 29, 6:06 PM EDTTornado Warning Considerable damage threatPHIBucks39 min
Jul 29, 7:07 PM EDTTornado WarningPHIBucks, Philadelphia23 min
Aug 18, 2:02 PM EDTTornado WarningCTPCentre, Huntingdon28 min
Aug 18, 3:10 PM EDTTornado WarningCTPAdams, York40 min
Aug 19, 12:26 AM EDTTornado WarningPHIBucks, Montgomery34 min
Aug 19, 12:47 AM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia28 min
Aug 19, 12:48 AM EDTTornado WarningPHIBucks27 min
Aug 22, 5:46 PM EDTTornado WarningBGMWayne14 min
Aug 22, 6:27 PM EDTTornado WarningBGMPike, Wayne18 min
Aug 22, 7:32 PM EDTTornado WarningBGMLackawanna, Wayne13 min
Sep 1, 3:05 PM EDTTornado WarningCTPYork23 min
Sep 1, 4:13 PM EDTTornado WarningPHIChester32 min
Sep 1, 5:15 PM EDTTornado WarningPHIDelaware, Montgomery, Philadelphia30 min
Sep 1, 5:34 PM EDTTornado WarningPHIBucks, Montgomery, Philadelphia26 min
Sep 1, 5:57 PM EDTTornado WarningPHIBucks33 min
Sep 1, 6:20 PM EDTTornado WarningPHIBucks40 min
Sep 1, 6:22 PM EDTTornado Warning Tornado observedPHIPhiladelphia23 min
Sep 1, 6:42 PM EDTTornado WarningPHIBucks, Philadelphia33 min
Sep 1, 7:04 PM EDTTornado Warning EmergencyTornado observedCatastrophic damage threatPHIBucks26 min
Sep 1, 7:22 PM EDTTornado WarningPHIBucks11 min
Sep 8, 10:23 PM EDTTornado WarningPHIBerks22 min
Sep 22, 5:43 PM EDTTornado WarningPBZArmstrong, Butler18 min
Sep 22, 6:04 PM EDTTornado WarningPBZButler, Venango12 min
Oct 15, 2:55 PM EDTTornado WarningCLECrawford32 min
Oct 16, 6:07 AM EDTTornado WarningPBZBeaver23 min
Oct 16, 6:54 AM EDTTornado WarningPBZButler21 min
Oct 21, 6:42 PM EDTTornado WarningPBZMercer18 min
Oct 21, 6:56 PM EDTTornado WarningPBZBeaver, Butler, Lawrence19 min
Oct 21, 6:57 PM EDTTornado WarningPBZWashington33 min
Oct 21, 7:13 PM EDTTornado WarningPBZGreene, Washington32 min
Oct 21, 7:24 PM EDTTornado WarningPBZButler36 min
Oct 21, 7:26 PM EDTTornado WarningPBZWashington34 min
Oct 21, 7:40 PM EDTTornado WarningPBZAllegheny, Beaver, Westmoreland20 min
Oct 21, 8:07 PM EDTTornado WarningPBZAllegheny, Washington23 min
Nov 12, 7:16 AM ESTTornado WarningBGMSusquehanna29 min

By county

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

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 29, 202113tornado warnings
  2. September 1, 202110tornado warnings
  3. October 21, 20217tornado warnings
  4. July 11, 20215tornado warnings
  5. July 12, 20215tornado warnings
  6. May 4, 20214tornado warnings
  7. June 21, 20213tornado warnings
  8. August 19, 20213tornado warnings
  9. August 22, 20213tornado warnings
  10. August 18, 20212tornado warnings
  11. September 22, 20212tornado warnings
  12. October 16, 20212tornado warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.