Alert archive / Pennsylvania / Flash Flood Watches
Flash Flood Watches in Pennsylvania, 2011
48 flash flood watches 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 flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Flash Flood Watches
- 48
- Busiest month
- September10 flash flood watches
- Busiest day
- April 27, 20114 flash flood watches
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 |
|---|---|---|---|---|
| Apr 15, 12:54 PM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more | 33 hr |
| Apr 19, 3:29 PM EDT | Flash Flood Watch | PBZ | Fayette, Greene, Washington | 3 hr |
| Apr 21, 2:55 PM EDT | Flash Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 53 hr |
| Apr 22, 2:51 PM EDT | Flash Flood Watch | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 30 hr |
| Apr 26, 5:10 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 9 hr |
| Apr 27, 10:09 AM EDT | Flash Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 18 hr |
| Apr 27, 11:16 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 23 hr |
| Apr 27, 11:25 AM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 27 hr |
| Apr 27, 3:26 PM EDT | Flash Flood Watch | PHI | Carbon, Lehigh, Monroe, Northampton | 24 hr |
| May 3, 3:54 AM EDT | Flash Flood Watch | CTP | Bedford, Blair, Centre, Clinton, Columbia, Cumberland and 17 more | 22 hr |
| May 14, 4:00 AM EDT | Flash Flood Watch | CTP | Cambria, Clearfield, Elk, McKean, Somerset, Warren | 24 hr |
| May 14, 4:10 AM EDT | Flash Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 20 hr |
| May 14, 4:19 AM EDT | Flash Flood Watch | CLE | Crawford, Erie | 19 hr |
| May 15, 9:50 AM EDT | Flash Flood Watch | CTP | McKean, Warren | 12 hr |
| May 19, 1:30 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming | 8 hr |
| May 20, 3:30 AM EDT | Flash Flood Watch | PHI | Carbon, Monroe, Northampton | 15 hr |
| May 23, 11:03 PM EDT | Flash Flood Watch | BGM | Bradford | 4 hr |
| May 27, 7:43 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 7 hr |
| Jun 11, 10:46 AM EDT | Flash Flood Watch | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 2 more | 13 hr |
| Jun 19, 1:55 PM EDT | Flash Flood Watch | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 15 hr |
| Jun 19, 2:30 PM EDT | Flash Flood Watch | CTP | Bedford, Somerset | 13 hr |
| Jun 24, 3:41 AM EDT | Flash Flood Watch | PHI | Carbon, Lehigh, Monroe, Northampton | 16 hr |
| Jul 8, 3:58 AM EDT | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 19 hr |
| Jul 8, 11:40 AM EDT | Flash Flood Watch | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, York | 7 hr |
| Jul 8, 2:47 PM EDT | Flash Flood Watch | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 6 hr |
| Aug 7, 1:55 AM EDT | Flash Flood Watch | PBZ | Fayette, Greene | 3 hr |
| Aug 7, 6:03 AM EDT | Flash Flood Watch | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 14 hr |
| Aug 14, 3:42 AM EDT | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 25 hr |
| Aug 14, 1:04 PM EDT | Flash Flood Watch | BGM | Bradford, Luzerne, Wyoming | 4 hr |
| Aug 18, 3:12 PM EDT | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 29 hr |
| Aug 19, 2:13 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 5 hr |
| Aug 19, 4:52 PM EDT | Flash Flood Watch | PBZ | Allegheny, Beaver, Fayette, Lawrence, Washington, Westmoreland | 3 hr |
| Aug 21, 3:28 AM EDT | Flash Flood Watch | PHI | Delaware, Philadelphia | 17 hr |
| Aug 26, 5:34 AM EDT | Flash Flood Watch | CTP | Dauphin, Lancaster, Lebanon, Schuylkill, York | 54 hr |
| Sep 4, 7:50 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 30 hr |
| Sep 4, 11:29 PM EDT | Flash Flood Watch | CTP | Adams, Columbia, Cumberland, Dauphin, Franklin, Juniata and 12 more | 21 hr |
| Sep 5, 3:49 PM EDT | Flash Flood Watch | PBZ | Fayette, Greene, Jefferson, Westmoreland | 36 hr |
| Sep 8, 7:59 PM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cumberland, Franklin, Fulton and 5 more | 8 hr |
| Sep 9, 8:33 PM EDT | Flash Flood Watch | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more | 7 hr |
| Sep 23, 9:53 AM EDT | Flash Flood Watch | CTP | Adams, Columbia, Cumberland, Dauphin, Juniata, Lancaster and 10 more | 16 hr |
| Sep 23, 12:42 PM EDT | Flash Flood Watch | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 9 hr |
| Sep 27, 9:12 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 40 hr |
| Sep 28, 2:43 AM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 39 hr |
| Sep 28, 3:56 AM EDT | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 39 hr |
| Oct 14, 12:10 PM EDT | Flash Flood Watch | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 6 hr |
| Nov 22, 2:47 PM EST | Flash Flood Watch | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 13 hr |
| Nov 22, 2:48 PM EST | Flash Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 16 hr |
| Nov 30, 10:00 AM EST | Flash Flood Watch | CTP | Lancaster | 27 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Luzerne County11
- Wyoming County11
- Dauphin County10
- Lebanon County10
- Lackawanna County10
- Cumberland County9
- Lancaster County9
- Schuylkill County9
- York County9
- Bradford County9
- Susquehanna County9
- Wayne County9
- Carbon County9
- Monroe County9
- Northampton County9
- Adams County8
- Perry County8
- Fayette County8
- Pike County8
- Lehigh County8
- Bedford County7
- Juniata County7
- Greene County7
- Blair County6
- Columbia County6
- Franklin County6
- Fulton County6
- Huntingdon County6
- Lycoming County6
- Montour County6
- Northumberland County6
- Snyder County6
- Somerset County6
- Sullivan County6
- Union County6
- Washington County6
- Westmoreland County6
- Berks County6
- Delaware County6
- Philadelphia County6
23 more counties
- Cambria County5
- Mifflin County5
- Allegheny County5
- Jefferson County5
- Centre County4
- Clearfield County4
- Clinton County4
- Armstrong County4
- Beaver County4
- Butler County4
- Clarion County4
- Forest County4
- Lawrence County4
- Mercer County4
- Venango County4
- McKean County4
- Tioga County4
- Warren County4
- Elk County3
- Potter County3
- Cameron County2
- Crawford County1
- Erie County1
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.