Alert archive / Pennsylvania / River Flood Warnings / 2011
River Flood Warnings in Pennsylvania, September 2011
89 river flood warnings in September 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 river flood warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count in September 2011. Tap one for its archive.
- River Flood Warnings
- 89
- Busiest day
- September 7, 201147 river flood warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 42 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 32 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Huntingdon | 44 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Centre, Snyder, Union | 45 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Cumberland, York | 67 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Perry | 45 hr |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 4 days |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 4 days |
| Sep 6, 12:00 PM EDT | River Flood Warning | CTP | Dauphin | 6 days |
| Sep 6, 5:16 PM EDT | River Flood Warning | CTP | Cumberland | 62 hr |
| Sep 6, 7:03 PM EDT | River Flood Warning | PHI | Chester | 16 hr |
| Sep 6, 7:41 PM EDT | River Flood Warning | PHI | Delaware | 5 hr |
| Sep 6, 7:52 PM EDT | River Flood Warning | PHI | Bucks | 52 hr |
| Sep 6, 11:13 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 3 days |
| Sep 6, 11:19 PM EDT | River Flood Warning | PHI | Montgomery | 17 hr |
| Sep 6, 11:24 PM EDT | River Flood Warning | CTP | Huntingdon | 22 hr |
| Sep 6, 11:24 PM EDT | River Flood Warning | CTP | Clinton | 31 hr |
| Sep 6, 11:24 PM EDT | River Flood Warning | CTP | Bedford | 18 hr |
| Sep 7, 12:59 AM EDT | River Flood Warning | PHI | Chester, Delaware | 41 hr |
| Sep 7, 3:40 AM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 54 hr |
| Sep 7, 3:47 AM EDT | River Flood Warning | PHI | Delaware | 4 hr |
| Sep 7, 3:49 AM EDT | River Flood Warning | BGM | Pike, Wayne | 31 hr |
| Sep 7, 4:26 AM EDT | River Flood Warning | PHI | Berks, Montgomery | 6 hr |
| Sep 7, 4:26 AM EDT | River Flood Warning | PHI | Montgomery | 3 days |
| Sep 7, 4:49 AM EDT | River Flood Warning | CTP | Lycoming, Sullivan | 41 hr |
| Sep 7, 9:45 AM EDT | River Flood Warning | BGM | Susquehanna | 5 days |
| Sep 7, 9:45 AM EDT | River Flood Warning | BGM | Bradford | 36 hr |
| Sep 7, 9:48 AM EDT | River Flood Warning | PHI | Lehigh, Northampton | 5 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Monroe, Northampton | 60 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Northampton | 67 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 68 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 67 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 67 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 64 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 67 hr |
| Sep 7, 10:05 AM EDT | River Flood Warning | PHI | Bucks | 68 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Huntingdon, Mifflin | 6 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Huntingdon, Juniata, Mifflin | 10 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Juniata, Perry | 10 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Columbia | 4 days |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Columbia, Montour, Northumberland | 4 days |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Union | 4 days |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Cumberland, Dauphin, Juniata, Lancaster, Northumberland, Perry and 2 more | 4 days |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Lancaster, York | 4 days |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Lycoming | 49 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Lycoming, Northumberland, Union | 49 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Northumberland, Union | 44 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Northumberland, Union | 44 hr |
| Sep 7, 11:22 AM EDT | River Flood Warning | CTP | Northumberland, Union | 53 hr |
| Sep 7, 11:24 AM EDT | River Flood Warning | BGM | Bradford | 5 days |
| Sep 7, 2:47 PM EDT | River Flood Warning | BGM | Wyoming | 37 hr |
| Sep 7, 3:28 PM EDT | River Flood Warning | CTP | Lancaster, York | 44 hr |
| Sep 7, 3:42 PM EDT | River Flood Warning | BGM | Wayne | 42 hr |
| Sep 7, 3:42 PM EDT | River Flood Warning | BGM | Pike | 40 hr |
| Sep 7, 4:03 PM EDT | River Flood Warning | BGM | Bradford | 3 days |
| Sep 7, 4:03 PM EDT | River Flood Warning | BGM | Wyoming | 3 days |
| Sep 7, 4:03 PM EDT | River Flood Warning | BGM | Luzerne | 4 days |
| Sep 7, 4:06 PM EDT | River Flood Warning | PHI | Berks, Montgomery | 41 hr |
| Sep 7, 4:06 PM EDT | River Flood Warning | PHI | Berks | 45 hr |
| Sep 7, 6:07 PM EDT | River Flood Warning | PHI | Chester | 10 hr |
| Sep 7, 9:38 PM EDT | River Flood Warning | PHI | Montgomery | 13 hr |
| Sep 7, 10:05 PM EDT | River Flood Warning | BGM | Bradford | 11 hr |
| Sep 8, 12:55 AM EDT | River Flood Warning | CTP | Tioga | 8 hr |
| Sep 8, 3:41 AM EDT | River Flood Warning | PHI | Lehigh, Northampton | 7 hr |
| Sep 8, 3:49 AM EDT | River Flood Warning | PHI | Monroe | 7 hr |
| Sep 8, 5:48 AM EDT | River Flood Warning | PHI | Monroe | 34 hr |
| Sep 8, 7:46 AM EDT | River Flood Warning | CTP | Lycoming | 8 hr |
| Sep 8, 11:12 AM EDT | River Flood Warning | PHI | Monroe, Northampton | 8 hr |
| Sep 8, 3:14 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 13 hr |
| Sep 9, 10:41 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 15 hr |
| Sep 9, 10:41 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 6 hr |
| Sep 9, 10:41 PM EDT | River Flood Warning | CTP | Perry | 15 hr |
| Sep 23, 6:48 PM EDT | River Flood Warning | CTP | Cumberland, York | 7 hr |
| Sep 23, 11:58 PM EDT | River Flood Warning | PHI | Chester | 5 hr |
| Sep 24, 1:04 AM EDT | River Flood Warning | PHI | Bucks | 5 hr |
| Sep 24, 4:13 AM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 7 hr |
| Sep 24, 4:44 AM EDT | River Flood Warning | PHI | Chester, Delaware | 14 hr |
| Sep 27, 5:32 PM EDT | River Flood Warning | CTP | Huntingdon | 3 hr |
| Sep 27, 10:20 PM EDT | River Flood Warning | BGM | Wyoming | 36 hr |
| Sep 28, 12:25 AM EDT | River Flood Warning | CTP | Huntingdon | 3 hr |
| Sep 28, 1:16 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 21 hr |
| Sep 28, 3:41 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 24 hr |
| Sep 28, 6:10 AM EDT | River Flood Warning | CTP | Dauphin | 22 hr |
| Sep 28, 7:14 PM EDT | River Flood Warning | CTP | Cumberland, York | 9 hr |
| Sep 28, 11:31 PM EDT | River Flood Warning | BGM | Susquehanna | 16 hr |
| Sep 29, 3:51 AM EDT | River Flood Warning | BGM | Bradford | 25 hr |
| Sep 29, 10:20 AM EDT | River Flood Warning | CTP | Cumberland, York | 10 hr |
| Sep 29, 12:20 PM EDT | River Flood Warning | CTP | Columbia | 20 hr |
| Sep 29, 12:20 PM EDT | River Flood Warning | CTP | Columbia, Montour, Northumberland | 20 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Huntingdon County10
- Dauphin County8
- Bucks County8
- Montgomery County8
- Northumberland County8
- York County7
- Chester County7
- Union County6
- Cumberland County6
- Northampton County6
- Perry County5
- Bradford County5
- Blair County4
- Lebanon County4
- Delaware County4
- Lycoming County4
- Monroe County4
- Juniata County4
- Columbia County4
- Philadelphia County3
- Berks County3
- Lehigh County3
- Lancaster County3
- Wyoming County3
- Snyder County2
- Schuylkill County2
- Pike County2
- Wayne County2
- Susquehanna County2
- Mifflin County2
- Montour County2
- Centre County1
- Clinton County1
- Bedford County1
- Sullivan County1
- Luzerne County1
- Tioga County1
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.