Alert archive / Pennsylvania / Tornado Warnings

Tornado Warnings in Pennsylvania, 2020

27 tornado warnings in 2020. 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 2020. Tap one for its archive.

Tornado Warnings
27
Busiest month
August16 tornado warnings
Busiest day
August 4, 20207 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
Feb 7, 9:39 AM ESTTornado WarningPHIChester, Delaware36 min
Mar 28, 3:40 PM EDTTornado WarningPBZAllegheny, Beaver, Washington35 min
Apr 8, 12:37 AM EDTTornado WarningPBZBeaver11 min
Apr 8, 1:17 AM EDTTornado WarningPBZAllegheny, Westmoreland6 min
Jun 3, 7:21 PM EDTTornado WarningPHIDelaware, Montgomery, Philadelphia24 min
Jun 4, 4:59 PM EDTTornado WarningCTPDauphin, Lebanon, Perry46 min
Jun 4, 5:17 PM EDTTornado WarningPBZButler, Mercer, Venango15 min
Jun 10, 9:34 PM EDTTornado WarningPBZBeaver26 min
Jun 10, 9:47 PM EDTTornado WarningPBZBeaver7 min
Jul 30, 6:45 PM EDTTornado WarningBGMSusquehanna30 min
Aug 2, 6:37 AM EDTTornado WarningPHIBerks, Lehigh23 min
Aug 2, 6:56 AM EDTTornado WarningPHIBerks, Lehigh34 min
Aug 2, 7:39 AM EDTTornado WarningPHIBucks, Lehigh, Northampton36 min
Aug 4, 7:23 AM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia20 min
Aug 4, 8:19 AM EDTTornado WarningPHIBucks26 min
Aug 4, 9:23 AM EDTTornado Warning Tornado observedPHIChester22 min
Aug 4, 9:29 AM EDTTornado WarningPHIMonroe, Northampton31 min
Aug 4, 9:58 AM EDTTornado WarningPHIMonroe16 min
Aug 4, 10:03 AM EDTTornado WarningBGMWayne13 min
Aug 4, 10:51 AM EDTTornado WarningPHIMontgomery24 min
Aug 7, 5:49 PM EDTTornado WarningPHIChester, Delaware26 min
Aug 7, 6:00 PM EDTTornado WarningPHIDelaware30 min
Aug 18, 12:31 AM EDTTornado WarningPHIMonroe, Northampton29 min
Aug 28, 1:15 PM EDTTornado WarningCTPHuntingdon, Mifflin30 min
Aug 28, 2:22 PM EDTTornado WarningCTPAdams, Cumberland38 min
Aug 28, 3:28 PM EDTTornado WarningPBZFayette32 min
Nov 30, 3:53 PM ESTTornado WarningPHIBucks, Montgomery13 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. August 4, 20207tornado warnings
  2. August 2, 20203tornado warnings
  3. August 28, 20203tornado warnings
  4. April 8, 20202tornado warnings
  5. June 4, 20202tornado warnings
  6. June 11, 20202tornado warnings
  7. August 7, 20202tornado warnings
  8. February 7, 20201tornado warnings
  9. March 28, 20201tornado warnings
  10. June 3, 20201tornado warnings
  11. July 30, 20201tornado warnings
  12. August 18, 20201tornado warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.