Alert archive / Pennsylvania / Flash Flood Warnings
Flash Flood Warnings in Pennsylvania, 2012
55 flash flood warnings in 2012. 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Flash Flood Warnings
- 55
- Busiest month
- May17 flash flood warnings
- Busiest day
- May 26, 20126 flash flood 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 3, 4:18 PM EDT | Flash Flood Warning | CTP | Centre, Clearfield, Clinton | 3 hr |
| May 7, 10:32 PM EDT | Flash Flood Warning | PBZ | Mercer | 4 hr |
| May 8, 7:53 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| May 16, 12:34 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 4 hr |
| May 26, 2:36 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 5 hr |
| May 26, 3:32 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 4 hr |
| May 26, 3:54 PM EDT | Flash Flood Warning | PHI | Carbon | 4 hr |
| May 26, 3:57 PM EDT | Flash Flood Warning | CTP | Schuylkill | 3 hr |
| May 26, 5:33 PM EDT | Flash Flood Warning | PHI | Monroe | 114 min |
| May 26, 5:35 PM EDT | Flash Flood Warning | CTP | Columbia, Schuylkill | 85 min |
| May 27, 4:08 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 4 hr |
| May 27, 5:57 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 2 hr |
| May 27, 1:52 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland | 83 min |
| May 27, 9:09 PM EDT | Flash Flood Warning | CTP | Columbia, Montour, Northumberland | 3 hr |
| May 27, 10:11 PM EDT | Flash Flood Warning | CTP | Bedford, Cambria, Somerset | 2 hr |
| May 29, 5:37 PM EDT | Flash Flood Warning | CTP | Cumberland, Dauphin, Lebanon, Perry, Schuylkill | 3 hr |
| May 29, 6:23 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 112 min |
| Jun 1, 9:17 PM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 5 hr |
| Jun 1, 11:04 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh, Montgomery | 4 hr |
| Jun 18, 5:40 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jun 22, 9:14 PM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster | 2 hr |
| Jun 29, 7:46 PM EDT | Flash Flood Warning | CTP | Bedford, Somerset | 3 hr |
| Jul 12, 7:51 PM EDT | Flash Flood Warning | CTP | McKean | 4 hr |
| Jul 18, 3:42 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jul 18, 3:52 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 113 min |
| Jul 18, 5:32 PM EDT | Flash Flood Warning | PBZ | Greene | 4 hr |
| Jul 20, 2:02 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 5 hr |
| Jul 20, 4:11 PM EDT | Flash Flood Warning | PBZ | Fayette, Washington, Westmoreland | 3 hr |
| Jul 23, 7:39 PM EDT | Flash Flood Warning | PHI | Monroe | 2 hr |
| Jul 28, 4:47 PM EDT | Flash Flood Warning | PHI | Northampton | 4 hr |
| Jul 28, 6:26 PM EDT | Flash Flood Warning | CTP | Lycoming | 102 min |
| Jul 31, 1:33 PM EDT | Flash Flood Warning | CTP | Cambria | 104 min |
| Aug 1, 1:16 AM EDT | Flash Flood Warning | CTP | Dauphin, Juniata, Northumberland, Schuylkill, Snyder | 2 hr |
| Aug 1, 4:07 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 3 hr |
| Aug 1, 5:09 PM EDT | Flash Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Aug 1, 5:22 PM EDT | Flash Flood Warning | PHI | Monroe | 106 min |
| Aug 1, 6:08 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 2 hr |
| Aug 4, 2:24 PM EDT | Flash Flood Warning | CTP | Cumberland, Dauphin, Perry, York | 117 min |
| Aug 9, 5:26 PM EDT | Flash Flood Warning | PHI | Bucks | 2 hr |
| Aug 9, 10:25 PM EDT | Flash Flood Warning | PHI | Monroe | 83 min |
| Aug 14, 10:12 PM EDT | Flash Flood Warning | CTP | Cumberland, Dauphin, Perry | 3 hr |
| Aug 26, 3:46 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Aug 26, 4:21 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Franklin, Perry | 3 hr |
| Sep 1, 4:32 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver | 2 hr |
| Sep 3, 12:58 AM EDT | Flash Flood Warning | PHI | Chester, Delaware | 5 hr |
| Sep 3, 8:23 AM EDT | Flash Flood Warning | PHI | Delaware | 82 min |
| Sep 3, 9:15 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 3 hr |
| Sep 4, 4:00 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 84 min |
| Sep 4, 1:47 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 4, 7:33 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe, Northampton | 6 hr |
| Sep 6, 5:07 PM EDT | Flash Flood Warning | CTP | Lycoming, Tioga | 6 hr |
| Sep 7, 12:57 AM EDT | Flash Flood Warning | CTP | Columbia | 75 min |
| Sep 18, 2:00 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Schuylkill and 1 more | 5 hr |
| Sep 18, 2:25 PM EDT | Flash Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 4 hr |
| Sep 27, 5:43 PM EDT | Flash Flood Warning | PBZ | Allegheny | 85 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County10
- Monroe County10
- Dauphin County7
- Northampton County6
- Bucks County6
- Cumberland County6
- Delaware County5
- Schuylkill County5
- Chester County4
- Carbon County4
- Philadelphia County4
- Perry County4
- York County4
- Columbia County3
- Adams County3
- Lebanon County3
- Lancaster County3
- Washington County3
- Allegheny County3
- Westmoreland County2
- Northumberland County2
- Bedford County2
- Cambria County2
- Somerset County2
- Lehigh County2
- Fayette County2
- Lycoming County2
- Centre County1
- Clearfield County1
- Clinton County1
- Mercer County1
- Montour County1
- Berks County1
- McKean County1
- Greene County1
- Juniata County1
- Snyder County1
- Franklin County1
- Beaver County1
- Tioga County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.