Alert archive / Pennsylvania / Heat Advisories

Heat Advisories in Pennsylvania, 2021

21 heat advisories 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 heat advisories reaches back to 2005.

Heat Advisories by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Heat Advisories
21
Busiest month
June8 heat advisories
Busiest day
August 10, 20214 heat advisories

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
Jun 5, 3:35 PM EDTHeat AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 days
Jun 21, 4:35 AM EDTHeat AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia15 hr
Jun 27, 3:19 AM EDTHeat AdvisoryPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more4 days
Jun 28, 3:13 PM EDTHeat AdvisoryPHIBucks, Carbon, Chester, Delaware, Monroe, Montgomery and 1 more53 hr
Jun 28, 3:53 PM EDTHeat AdvisoryBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more28 hr
Jun 28, 10:35 PM EDTHeat AdvisoryCTPColumbia, Dauphin, Lancaster, Lebanon, Montour, Northumberland and 2 more20 hr
Jun 29, 3:30 PM EDTHeat AdvisoryBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more29 hr
Jun 29, 8:56 PM EDTHeat AdvisoryCTPColumbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 5 more22 hr
Jul 5, 3:21 AM EDTHeat AdvisoryPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more65 hr
Jul 5, 2:13 PM EDTHeat AdvisoryCTPAdams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more28 hr
Jul 6, 6:59 PM EDTHeat AdvisoryCTPAdams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more24 hr
Jul 11, 6:18 PM EDTHeat AdvisoryPHIBucks, Delaware, Montgomery, Philadelphia50 hr
Jul 15, 2:33 PM EDTHeat AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia52 hr
Aug 10, 3:33 AM EDTHeat AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 days
Aug 10, 12:55 PM EDTHeat AdvisoryCTPAdams, Columbia, Cumberland, Dauphin, Franklin, Juniata and 10 more30 hr
Aug 10, 12:55 PM EDTHeat AdvisoryCTPAdams, Bedford, Blair, Centre, Clinton, Columbia and 19 more54 hr
Aug 10, 3:14 PM EDTHeat AdvisoryBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more28 hr
Aug 11, 3:15 AM EDTHeat AdvisoryBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more40 hr
Aug 12, 3:15 AM EDTHeat AdvisoryPBZAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more16 hr
Aug 12, 3:33 AM EDTHeat AdvisoryCTPColumbia, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 8 more39 hr
Aug 25, 2:13 PM EDTHeat AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia53 hr

By county

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

11 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 10, 20214heat advisories
  2. June 28, 20212heat advisories
  3. June 29, 20212heat advisories
  4. July 5, 20212heat advisories
  5. August 12, 20212heat advisories
  6. June 5, 20211heat advisories
  7. June 21, 20211heat advisories
  8. June 27, 20211heat advisories
  9. June 30, 20211heat advisories
  10. July 6, 20211heat advisories
  11. July 11, 20211heat advisories
  12. July 15, 20211heat advisories

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.