Alert archive / Pennsylvania / Excessive Heat Warnings
Excessive Heat Warnings in Pennsylvania, 2011
10 excessive heat 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 excessive heat warnings reaches back to 2005.
Excessive Heat Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Excessive Heat Warnings
- 10
- Busiest month
- July8 excessive heat warnings
- Busiest day
- July 20, 20115 excessive heat 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 1:27 PM EDT | Excessive Heat Warning | PHI | Delaware, Philadelphia | 31 hr |
| Jun 7, 3:15 PM EDT | Excessive Heat Warning | PHI | Delaware, Philadelphia | 53 hr |
| Jul 19, 2:29 PM EDT | Excessive Heat Warning | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 5 days |
| Jul 20, 11:32 AM EDT | Excessive Heat Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 30 hr |
| Jul 20, 1:43 PM EDT | Excessive Heat Warning | CTP | Adams, Clinton, Columbia, Cumberland, Dauphin, Franklin and 12 more | 30 hr |
| Jul 20, 1:43 PM EDT | Excessive Heat Warning | CTP | Adams, Clinton, Columbia, Cumberland, Dauphin, Franklin and 12 more | 54 hr |
| Jul 20, 2:15 PM EDT | Excessive Heat Warning | CLE | Crawford, Erie | 31 hr |
| Jul 20, 3:48 PM EDT | Excessive Heat Warning | BGM | Lackawanna, Luzerne | 28 hr |
| Jul 22, 9:16 AM EDT | Excessive Heat Warning | BGM | Lackawanna, Luzerne | 11 hr |
| Jul 22, 11:36 AM EDT | Excessive Heat Warning | PBZ | Allegheny, Beaver, Washington | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Delaware County3
- Philadelphia County3
- Allegheny County2
- Beaver County2
- Washington County2
- Adams County2
- Clinton County2
- Columbia County2
- Cumberland County2
- Dauphin County2
- Franklin County2
- Juniata County2
- Lancaster County2
- Lebanon County2
- Lycoming County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Perry County2
- Schuylkill County2
- Snyder County2
- Union County2
- York County2
- Lackawanna County2
- Luzerne County2
- Berks County1
- Carbon County1
- Lehigh County1
- Monroe County1
- Northampton County1
- Armstrong County1
- Butler County1
- Clarion County1
- Fayette County1
- Greene County1
- Lawrence County1
- Mercer County1
- Venango County1
- Westmoreland County1
- Crawford County1
1 more counties
The busiest days
Days with the most alerts issued, by UTC date.
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. Warning verification from the Mesonet's Cow. Rebuilt daily.