Alert archive / Pennsylvania / Areal Flood Warnings
Areal Flood Warnings in Pennsylvania, 2011
153 areal flood 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 areal flood warnings reaches back to 2005.
Areal Flood Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Areal Flood Warnings
- 153
- Busiest month
- September52 areal flood warnings
- Busiest day
- February 28, 201110 areal 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 |
|---|---|---|---|---|
| Feb 28, 1:54 AM EST | Areal Flood Warning | CLE | Crawford, Erie | 12 hr |
| Feb 28, 4:16 AM EST | Areal Flood Warning | PBZ | Forest, Mercer, Venango | 20 hr |
| Feb 28, 4:51 AM EST | Areal Flood Warning | CTP | McKean, Warren | 6 hr |
| Feb 28, 5:17 AM EST | Areal Flood Warning | PBZ | Beaver, Butler, Lawrence | 20 hr |
| Feb 28, 6:39 AM EST | Areal Flood Warning | PBZ | Clarion, Jefferson | 15 hr |
| Feb 28, 6:46 AM EST | Areal Flood Warning | PBZ | Allegheny, Westmoreland | 11 hr |
| Feb 28, 6:57 AM EST | Areal Flood Warning | CTP | Cameron, Elk | 6 hr |
| Feb 28, 8:14 AM EST | Areal Flood Warning | PBZ | Armstrong, Indiana, Westmoreland | 10 hr |
| Feb 28, 10:18 AM EST | Areal Flood Warning | CLE | Crawford, Erie | 50 hr |
| Feb 28, 10:19 AM EST | Areal Flood Warning | PBZ | Fayette | 6 hr |
| Mar 5, 9:15 AM EST | Areal Flood Warning | CLE | Crawford, Erie | 24 hr |
| Mar 5, 10:59 AM EST | Areal Flood Warning | PBZ | Venango | 8 hr |
| Mar 6, 8:59 AM EST | Areal Flood Warning | CLE | Crawford | 6 hr |
| Mar 6, 12:36 PM EST | Areal Flood Warning | PBZ | Forest | 8 hr |
| Mar 6, 1:56 PM EST | Areal Flood Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 6 hr |
| Mar 6, 3:22 PM EST | Areal Flood Warning | BGM | Lackawanna | 12 hr |
| Mar 6, 3:32 PM EST | Areal Flood Warning | PHI | Berks, Monroe | 41 days |
| Mar 6, 4:55 PM EST | Areal Flood Warning | PHI | Carbon, Lehigh, Northampton | 12 hr |
| Mar 6, 9:31 PM EST | Areal Flood Warning | PHI | Carbon, Monroe | 6 hr |
| Mar 6, 10:11 PM EST | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 9 hr |
| Mar 7, 6:19 PM EST | Areal Flood Warning | PHI | Monroe | 5 hr |
| Mar 10, 9:00 AM EST | Areal Flood Warning | CLE | Crawford, Erie | 10 hr |
| Mar 10, 12:48 PM EST | Areal Flood Warning | PBZ | Allegheny, Beaver, Greene, Washington | 22 hr |
| Mar 10, 3:00 PM EST | Areal Flood Warning | PBZ | Butler, Lawrence, Mercer, Venango | 20 hr |
| Mar 10, 3:28 PM EST | Areal Flood Warning | CTP | Bedford, Somerset | 6 hr |
| Mar 10, 4:31 PM EST | Areal Flood Warning | CTP | Adams, Blair, Cambria, Centre, Clearfield, Cumberland and 9 more | 10 hr |
| Mar 10, 4:36 PM EST | Areal Flood Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more | 37 hr |
| Mar 10, 5:11 PM EST | Areal Flood Warning | CTP | Cameron, Clinton, Columbia, Dauphin, Elk, Lancaster and 10 more | 12 hr |
| Mar 10, 6:48 PM EST | Areal Flood Warning | CLE | Crawford, Erie | 41 hr |
| Mar 10, 9:54 PM EST | Areal Flood Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 12 hr |
| Mar 10, 11:47 PM EST | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 12 hr |
| Mar 11, 2:26 AM EST | Areal Flood Warning | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 11 more | 8 hr |
| Mar 11, 4:11 AM EST | Areal Flood Warning | BGM | Luzerne | 2 hr |
| Mar 11, 4:52 AM EST | Areal Flood Warning | CTP | Clinton, Columbia, Dauphin, Lancaster, Lebanon, Lycoming and 6 more | 8 hr |
| Mar 11, 10:47 AM EST | Areal Flood Warning | PBZ | Allegheny, Beaver | 11 hr |
| Mar 11, 11:05 AM EST | Areal Flood Warning | PBZ | Lawrence | 11 hr |
| Apr 5, 7:57 AM EDT | Areal Flood Warning | PBZ | Washington | 4 hr |
| Apr 16, 4:39 PM EDT | Areal Flood Warning | CTP | Adams, Centre, Clinton, Columbia, Cumberland, Dauphin and 17 more | 20 hr |
| Apr 16, 6:22 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery | 12 hr |
| Apr 16, 6:37 PM EDT | Areal Flood Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 8 hr |
| Apr 16, 8:08 PM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 8 hr |
| Apr 17, 1:05 AM EDT | Areal Flood Warning | PHI | Berks | 5 hr |
| Apr 17, 3:56 AM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Apr 17, 6:07 AM EDT | Areal Flood Warning | PHI | Chester | 3 hr |
| Apr 26, 11:23 PM EDT | Areal Flood Warning | BGM | Bradford | 6 hr |
| May 12, 8:42 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 3 hr |
| May 13, 3:49 PM EDT | Areal Flood Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 6 hr |
| May 13, 3:50 PM EDT | Areal Flood Warning | CLE | Crawford, Erie | 4 hr |
| May 13, 5:54 PM EDT | Areal Flood Warning | PBZ | Greene | 14 hr |
| May 15, 10:28 AM EDT | Areal Flood Warning | PBZ | Armstrong, Butler, Clarion, Forest, Indiana, Jefferson and 1 more | 6 hr |
| May 15, 10:34 AM EDT | Areal Flood Warning | CLE | Crawford, Erie | 9 hr |
| May 18, 2:12 PM EDT | Areal Flood Warning | PBZ | Westmoreland | 4 hr |
| May 19, 6:47 PM EDT | Areal Flood Warning | CTP | Potter, Tioga | 3 hr |
| May 19, 7:23 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 82 min |
| May 25, 8:17 PM EDT | Areal Flood Warning | CLE | Crawford, Erie | 10 hr |
| May 26, 4:54 PM EDT | Areal Flood Warning | CLE | Erie | 4 hr |
| Jun 18, 12:50 AM EDT | Areal Flood Warning | PBZ | Greene | 3 hr |
| Jun 19, 11:40 PM EDT | Areal Flood Warning | PBZ | Beaver, Fayette, Greene, Washington, Westmoreland | 4 hr |
| Jul 4, 3:20 PM EDT | Areal Flood Warning | PBZ | Greene | 3 hr |
| Jul 4, 5:35 PM EDT | Areal Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Jul 6, 9:23 PM EDT | Areal Flood Warning | PBZ | Fayette | 3 hr |
| Jul 7, 5:20 PM EDT | Areal Flood Warning | PBZ | Fayette, Washington, Westmoreland | 2 hr |
| Jul 18, 5:59 PM EDT | Areal Flood Warning | PBZ | Allegheny, Beaver | 4 hr |
| Jul 22, 6:08 PM EDT | Areal Flood Warning | PBZ | Butler, Lawrence, Mercer | 2 hr |
| Jul 22, 6:15 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 4 hr |
| Jul 25, 6:39 PM EDT | Areal Flood Warning | PBZ | Westmoreland | 3 hr |
| Aug 14, 9:21 AM EDT | Areal Flood Warning | PHI | Northampton | 3 hr |
| Aug 14, 11:14 AM EDT | Areal Flood Warning | PBZ | Forest | 3 hr |
| Aug 14, 12:37 PM EDT | Areal Flood Warning | PHI | Bucks, Lehigh, Northampton | 7 hr |
| Aug 14, 1:00 PM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 8 hr |
| Aug 15, 11:11 AM EDT | Areal Flood Warning | CLE | Erie | 4 hr |
| Aug 19, 4:00 AM EDT | Areal Flood Warning | PHI | Delaware | 4 hr |
| Aug 19, 3:24 PM EDT | Areal Flood Warning | PBZ | Lawrence, Mercer | 3 hr |
| Aug 19, 4:03 PM EDT | Areal Flood Warning | PBZ | Beaver | 3 hr |
| Aug 19, 4:58 PM EDT | Areal Flood Warning | PBZ | Beaver, Lawrence | 3 hr |
| Aug 19, 8:03 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 9 hr |
| Aug 19, 8:54 PM EDT | Areal Flood Warning | PHI | Chester | 4 hr |
| Aug 19, 11:51 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Aug 27, 5:42 PM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Aug 27, 9:43 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 6 hr |
| Aug 27, 11:21 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe | 6 hr |
| Aug 28, 2:37 AM EDT | Areal Flood Warning | CTP | Lancaster, York | 8 hr |
| Aug 28, 10:38 AM EDT | Areal Flood Warning | CTP | York | 4 hr |
| Aug 28, 11:07 AM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 18 hr |
| Aug 28, 12:39 PM EDT | Areal Flood Warning | CTP | Lancaster | 5 hr |
| Aug 28, 1:27 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 8 hr |
| Aug 28, 3:23 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe | 8 hr |
| Aug 28, 9:52 PM EDT | Areal Flood Warning | PHI | Bucks, Lehigh, Northampton | 31 hr |
| Sep 1, 8:02 AM EDT | Areal Flood Warning | PBZ | Mercer | 3 hr |
| Sep 5, 9:32 PM EDT | Areal Flood Warning | PHI | Montgomery | 9 hr |
| Sep 6, 3:40 AM EDT | Areal Flood Warning | PHI | Berks | 3 hr |
| Sep 6, 12:06 PM EDT | Areal Flood Warning | CTP | Bedford, Blair, Cambria, Somerset | 34 hr |
| Sep 6, 5:35 PM EDT | Areal Flood Warning | PBZ | Fayette | 12 hr |
| Sep 6, 5:49 PM EDT | Areal Flood Warning | PHI | Philadelphia | 20 hr |
| Sep 6, 6:10 PM EDT | Areal Flood Warning | PHI | Bucks, Monroe, Northampton | 71 hr |
| Sep 6, 6:32 PM EDT | Areal Flood Warning | PHI | Montgomery | 26 hr |
| Sep 6, 6:38 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 23 hr |
| Sep 6, 6:44 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 15 hr |
| Sep 6, 6:48 PM EDT | Areal Flood Warning | PHI | Bucks | 31 hr |
| Sep 6, 8:32 PM EDT | Areal Flood Warning | CTP | Franklin, Fulton, Huntingdon, Juniata, Mifflin, Perry | 16 hr |
| Sep 6, 10:20 PM EDT | Areal Flood Warning | CTP | Columbia, Cumberland, Dauphin, Lycoming, Montour, Northumberland and 3 more | 14 hr |
| Sep 6, 10:31 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 15 hr |
| Sep 7, 6:15 AM EDT | Areal Flood Warning | CTP | Centre, Clinton, Lycoming | 6 hr |
| Sep 7, 12:09 PM EDT | Areal Flood Warning | CTP | Adams, Centre, Clinton, Columbia, Cumberland, Dauphin and 17 more | 12 hr |
| Sep 7, 7:21 PM EDT | Areal Flood Warning | PHI | Berks, Chester | 14 hr |
| Sep 7, 8:24 PM EDT | Areal Flood Warning | PHI | Montgomery | 6 hr |
| Sep 8, 12:13 AM EDT | Areal Flood Warning | PHI | Berks | 24 hr |
| Sep 8, 12:59 AM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 8 hr |
| Sep 8, 4:01 AM EDT | Areal Flood Warning | CTP | Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 4 more | 34 hr |
| Sep 8, 5:01 AM EDT | Areal Flood Warning | CTP | Adams, Cumberland, Perry | 22 hr |
| Sep 8, 8:36 AM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 16 hr |
| Sep 8, 9:22 AM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 24 hr |
| Sep 8, 9:32 AM EDT | Areal Flood Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Montgomery | 15 hr |
| Sep 9, 2:55 AM EDT | Areal Flood Warning | CTP | Adams, Cumberland, Perry | 6 hr |
| Sep 9, 9:18 AM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 8 hr |
| Sep 10, 12:57 AM EDT | Areal Flood Warning | CTP | Juniata, Mifflin, Perry, Snyder | 6 hr |
| Sep 10, 10:48 AM EDT | Areal Flood Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 4 hr |
| Sep 23, 1:59 PM EDT | Areal Flood Warning | PHI | Carbon | 3 hr |
| Sep 23, 5:27 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 12 hr |
| Sep 23, 5:35 PM EDT | Areal Flood Warning | CTP | Adams | 6 hr |
| Sep 23, 5:53 PM EDT | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 12 hr |
| Sep 23, 6:34 PM EDT | Areal Flood Warning | PHI | Bucks | 4 hr |
| Sep 23, 10:31 PM EDT | Areal Flood Warning | PHI | Bucks | 6 hr |
| Sep 23, 11:48 PM EDT | Areal Flood Warning | PHI | Philadelphia | 5 hr |
| Sep 24, 5:29 AM EDT | Areal Flood Warning | PHI | Chester, Montgomery | 5 hr |
| Sep 26, 9:33 PM EDT | Areal Flood Warning | PBZ | Beaver, Butler, Lawrence | 6 hr |
| Sep 27, 3:31 PM EDT | Areal Flood Warning | CTP | Adams, Bedford, Centre, Cumberland, Dauphin, Franklin and 8 more | 6 hr |
| Sep 27, 4:57 PM EDT | Areal Flood Warning | CTP | Montour, Northumberland, Snyder, Union | 5 hr |
| Sep 27, 7:00 PM EDT | Areal Flood Warning | PHI | Berks | 3 hr |
| Sep 27, 7:45 PM EDT | Areal Flood Warning | PHI | Carbon | 3 hr |
| Sep 27, 8:16 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe | 3 hr |
| Sep 28, 4:38 AM EDT | Areal Flood Warning | PHI | Bucks | 3 hr |
| Sep 28, 9:52 AM EDT | Areal Flood Warning | BGM | Luzerne | 5 hr |
| Sep 28, 6:35 PM EDT | Areal Flood Warning | PHI | Bucks | 2 hr |
| Sep 28, 7:44 PM EDT | Areal Flood Warning | PHI | Chester | 3 hr |
| Sep 28, 8:38 PM EDT | Areal Flood Warning | PHI | Montgomery | 8 hr |
| Sep 28, 9:26 PM EDT | Areal Flood Warning | CTP | Adams, Columbia, Cumberland, Dauphin, Juniata, Lancaster and 11 more | 6 hr |
| Sep 28, 9:58 PM EDT | Areal Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 12 hr |
| Sep 29, 9:54 AM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 7 hr |
| Sep 29, 4:44 PM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Nov 22, 9:07 PM EST | Areal Flood Warning | PBZ | Fayette, Greene, Indiana, Westmoreland | 6 hr |
| Nov 22, 9:56 PM EST | Areal Flood Warning | PHI | Berks, Chester, Montgomery | 6 hr |
| Nov 23, 2:56 AM EST | Areal Flood Warning | PBZ | Fayette, Greene | 6 hr |
| Nov 23, 3:44 AM EST | Areal Flood Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Monroe and 3 more | 8 hr |
| Nov 23, 7:37 AM EST | Areal Flood Warning | CTP | Lancaster | 3 hr |
| Nov 23, 11:50 AM EST | Areal Flood Warning | PHI | Berks, Chester, Montgomery | 4 hr |
| Dec 7, 6:25 PM EST | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 8 hr |
| Dec 7, 8:04 PM EST | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 18 hr |
| Dec 8, 1:58 AM EST | Areal Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 5 hr |
| Dec 23, 3:18 AM EST | Areal Flood Warning | PHI | Chester | 3 hr |
| Dec 23, 6:27 AM EST | Areal Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 93 min |
| Dec 27, 6:01 PM EST | Areal Flood Warning | PHI | Chester | 3 hr |
| Dec 27, 7:55 PM EST | Areal Flood Warning | PHI | Delaware | 94 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County28
- Bucks County23
- Chester County22
- Philadelphia County18
- Berks County17
- Lehigh County16
- Northampton County16
- Delaware County16
- Monroe County14
- Carbon County14
- Westmoreland County11
- York County11
- Dauphin County11
- Lancaster County11
- Erie County10
- Perry County10
- Snyder County10
- Crawford County9
- Lycoming County9
- Adams County9
- Cumberland County9
- Union County9
- Beaver County8
- Allegheny County8
- Fayette County8
- Columbia County8
- Tioga County8
- Juniata County8
- Lebanon County8
- Montour County8
- Northumberland County8
- Butler County7
- Lawrence County7
- Sullivan County7
- Greene County7
- Mifflin County7
- Schuylkill County7
- Armstrong County6
- Centre County6
- Franklin County6
23 more counties
- Fulton County6
- Huntingdon County6
- Mercer County5
- Indiana County5
- Washington County5
- Clinton County5
- Forest County4
- Venango County4
- Clarion County4
- Jefferson County4
- Bedford County4
- Somerset County3
- Blair County3
- Cambria County3
- Potter County3
- McKean County2
- Warren County2
- Cameron County2
- Elk County2
- Clearfield County2
- Luzerne County2
- Lackawanna County1
- Bradford 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.