Alert archive / Pennsylvania / Areal Flood Warnings
Areal Flood Warnings in Pennsylvania, 2021
54 areal flood warnings in 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 areal flood warnings reaches back to 2005.
Areal Flood Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Areal Flood Warnings
- 54
- Busiest month
- September21 areal flood warnings
- Busiest day
- September 2, 20219 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, 3:14 PM EST | Areal Flood Warning | CTP | Somerset | 6 hr |
| Feb 28, 7:38 PM EST | Areal Flood Warning | PHI | Chester | 3 hr |
| Mar 24, 6:26 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 10 hr |
| Mar 24, 9:42 PM EDT | Areal Flood Warning | PHI | Bucks | 4 hr |
| May 5, 1:21 AM EDT | Areal Flood Warning | BGM | Lackawanna, Wayne | 114 min |
| Jun 8, 6:21 PM EDT | Areal Flood Warning | PHI | Chester, Delaware | 15 hr |
| Jun 21, 7:46 PM EDT | Areal Flood Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 3 hr |
| Jun 21, 8:40 PM EDT | Areal Flood Warning | PBZ | Allegheny, Greene, Washington, Westmoreland | 2 hr |
| Jun 21, 10:44 PM EDT | Areal Flood Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 3 hr |
| Jul 2, 10:02 PM EDT | Areal Flood Warning | BGM | Bradford | 5 hr |
| Jul 12, 8:37 PM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 9 hr |
| Aug 12, 10:32 PM EDT | Areal Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 3 hr |
| Aug 12, 11:43 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Washington | 92 min |
| Aug 13, 12:17 AM EDT | Areal Flood Warning | PBZ | Fayette, Washington, Westmoreland | 57 min |
| Aug 18, 3:17 PM EDT | Areal Flood Warning | CTP | Bedford, Blair, Huntingdon | 118 min |
| Aug 18, 10:34 PM EDT | Areal Flood Warning | CTP | Lancaster, York | 11 min |
| Aug 18, 10:48 PM EDT | Areal Flood Warning | CTP | Lancaster, York | 2 hr |
| Aug 18, 10:59 PM EDT | Areal Flood Warning | CTP | Lancaster | 2 hr |
| Aug 19, 4:33 AM EDT | Areal Flood Warning | PHI | Chester, Delaware | 4 hr |
| Aug 19, 6:09 AM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 3 hr |
| Aug 19, 8:50 AM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Aug 19, 10:40 AM EDT | Areal Flood Warning | PHI | Delaware | 3 hr |
| Aug 23, 12:13 AM EDT | Areal Flood Warning | BGM | Lackawanna | 8 hr |
| Aug 23, 12:13 AM EDT | Areal Flood Warning | BGM | Wayne | 8 hr |
| Aug 23, 2:01 AM EDT | Areal Flood Warning | BGM | Luzerne | 6 hr |
| Aug 23, 2:36 AM EDT | Areal Flood Warning | PHI | Carbon, Monroe | 21 hr |
| Aug 23, 8:28 AM EDT | Areal Flood Warning | PHI | Lehigh | 7 hr |
| Aug 30, 2:11 AM EDT | Areal Flood Warning | PBZ | Indiana, Jefferson | 117 min |
| Sep 1, 1:15 PM EDT | Areal Flood Warning | PBZ | Fayette | 2 hr |
| Sep 1, 1:16 PM EDT | Areal Flood Warning | PBZ | Indiana, Westmoreland | 2 hr |
| Sep 1, 1:24 PM EDT | Areal Flood Warning | PBZ | Fayette, Indiana, Westmoreland | 2 hr |
| Sep 1, 3:34 PM EDT | Areal Flood Warning | CTP | Cambria, Clearfield, Somerset | 6 hr |
| Sep 1, 4:04 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe, Northampton | 24 hr |
| Sep 1, 4:40 PM EDT | Areal Flood Warning | CTP | Bedford, Blair, Cambria, Centre, Clearfield, Franklin and 4 more | 6 hr |
| Sep 1, 5:41 PM EDT | Areal Flood Warning | CTP | Adams, Centre, Columbia, Cumberland, Dauphin, Franklin and 15 more | 14 hr |
| Sep 1, 7:23 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 14 hr |
| Sep 1, 10:42 PM EDT | Areal Flood Warning | PHI | Berks, Bucks, Montgomery | 12 hr |
| Sep 1, 10:47 PM EDT | Areal Flood Warning | PHI | Bucks, Carbon, Lehigh, Northampton | 23 hr |
| Sep 1, 10:52 PM EDT | Areal Flood Warning | PHI | Bucks | 12 hr |
| Sep 1, 11:38 PM EDT | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 10 hr |
| Sep 2, 12:01 AM EDT | Areal Flood Warning | PHI | Monroe, Northampton | 40 hr |
| Sep 2, 2:23 AM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 9 hr |
| Sep 2, 2:29 AM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 5 hr |
| Sep 2, 2:41 AM EDT | Areal Flood Warning | PHI | Bucks | 14 hr |
| Sep 2, 3:52 AM EDT | Areal Flood Warning | PHI | Bucks | 8 hr |
| Sep 9, 4:26 AM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Sep 9, 4:28 AM EDT | Areal Flood Warning | PHI | Northampton | 4 hr |
| Sep 23, 4:26 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 80 min |
| Sep 23, 7:18 PM EDT | Areal Flood Warning | PHI | Berks, Montgomery | 36 min |
| Oct 26, 12:31 AM EDT | Areal Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 5 hr |
| Oct 26, 6:09 AM EDT | Areal Flood Warning | PHI | Bucks | 3 hr |
| Oct 26, 12:20 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe, Northampton | 7 hr |
| Oct 26, 3:20 PM EDT | Areal Flood Warning | BGM | Susquehanna, Wayne | 115 min |
| Oct 26, 3:30 PM EDT | Areal Flood Warning | BGM | Pike, Wayne | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County11
- Montgomery County8
- Philadelphia County7
- Delaware County7
- Westmoreland County7
- Chester County6
- Washington County6
- Northampton County6
- Fayette County5
- Berks County5
- Wayne County4
- Allegheny County4
- Lancaster County4
- Carbon County4
- Monroe County4
- Lehigh County4
- Somerset County3
- Greene County3
- Huntingdon County3
- York County3
- Indiana County3
- Lackawanna County2
- Bedford County2
- Blair County2
- Cambria County2
- Clearfield County2
- Centre County2
- Franklin County2
- Fulton County2
- Mifflin County2
- Bradford County1
- Armstrong County1
- Beaver County1
- Butler County1
- Luzerne County1
- Jefferson County1
- Adams County1
- Columbia County1
- Cumberland County1
- Dauphin County1
The busiest days
Days with the most alerts issued, by UTC date.
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.