Alert archive / Pennsylvania / Heat Advisories / 2021
Heat Advisories in Pennsylvania, June 2021
8 heat advisories in June 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 June 2021. Tap one for its archive.
- Heat Advisories
- 8
- Busiest day
- June 28, 20212 heat advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 3:35 PM EDT | Heat Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 days |
| Jun 21, 4:35 AM EDT | Heat Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 15 hr |
| Jun 27, 3:19 AM EDT | Heat Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 4 days |
| Jun 28, 3:13 PM EDT | Heat Advisory | PHI | Bucks, Carbon, Chester, Delaware, Monroe, Montgomery and 1 more | 53 hr |
| Jun 28, 3:53 PM EDT | Heat Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 28 hr |
| Jun 28, 10:35 PM EDT | Heat Advisory | CTP | Columbia, Dauphin, Lancaster, Lebanon, Montour, Northumberland and 2 more | 20 hr |
| Jun 29, 3:30 PM EDT | Heat Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 29 hr |
| Jun 29, 8:56 PM EDT | Heat Advisory | CTP | Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 5 more | 22 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County4
- Chester County4
- Delaware County4
- Montgomery County4
- Philadelphia County4
- Carbon County2
- Monroe County2
- Bradford County2
- Lackawanna County2
- Luzerne County2
- Pike County2
- Susquehanna County2
- Wayne County2
- Wyoming County2
- Columbia County2
- Dauphin County2
- Lancaster County2
- Lebanon County2
- Montour County2
- Northumberland County2
- Schuylkill County2
- York County2
- Berks County1
- Lehigh County1
- Northampton County1
- Lycoming County1
- Snyder County1
- Union County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.