Alert archive / Pennsylvania / River Flood Warnings
River Flood Warnings in Pennsylvania, 2023
52 river flood warnings in 2023. 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 2023. Tap one for its archive.
- River Flood Warnings
- 52
- Busiest month
- December38 river flood warnings
- Busiest day
- December 18, 202324 river 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 1, 12:46 AM EDT | River Flood Warning | BGM | Susquehanna | 33 hr |
| May 1, 4:12 AM EDT | River Flood Warning | BGM | Bradford | 34 hr |
| May 1, 4:26 AM EDT | River Flood Warning | BGM | Wyoming | 17 hr |
| May 1, 5:36 AM EDT | River Flood Warning | PHI | Bucks | 7 hr |
| Jun 27, 2:23 AM EDT | River Flood Warning | PHI | Chester | 6 hr |
| Jun 27, 3:26 AM EDT | River Flood Warning | PHI | Delaware | 4 hr |
| Jun 27, 3:54 AM EDT | River Flood Warning | PHI | Chester, Delaware | 5 hr |
| Jun 27, 10:08 AM EDT | River Flood Warning | PHI | Chester, Delaware | 109 min |
| Jul 9, 7:27 PM EDT | River Flood Warning | PHI | Chester | 4 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | Montgomery | 22 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 12 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 12 hr |
| Jul 9, 9:53 PM EDT | River Flood Warning | PHI | Chester, Delaware | 17 hr |
| Jul 25, 5:07 PM EDT | River Flood Warning | PHI | Chester | 6 hr |
| Dec 11, 2:43 AM EST | River Flood Warning | PHI | Bucks | 10 hr |
| Dec 11, 3:02 AM EST | River Flood Warning | PHI | Chester | 4 hr |
| Dec 18, 2:05 AM EST | River Flood Warning | PHI | Chester | 20 hr |
| Dec 18, 4:20 AM EST | River Flood Warning | PHI | Chester, Delaware | 22 hr |
| Dec 18, 4:27 AM EST | River Flood Warning | PHI | Montgomery | 13 hr |
| Dec 18, 4:35 AM EST | River Flood Warning | PHI | Montgomery, Philadelphia | 20 hr |
| Dec 18, 4:49 AM EST | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 30 hr |
| Dec 18, 4:51 AM EST | River Flood Warning | PHI | Bucks | 18 hr |
| Dec 18, 5:00 AM EST | River Flood Warning | PHI | Montgomery | 30 hr |
| Dec 18, 5:19 AM EST | River Flood Warning | PHI | Delaware | 9 hr |
| Dec 18, 5:37 AM EST | River Flood Warning | CTP | Lebanon, Schuylkill | 29 hr |
| Dec 18, 6:00 AM EST | River Flood Warning | BGM | Wyoming | 16 hr |
| Dec 18, 6:03 AM EST | River Flood Warning | BGM | Bradford | 19 hr |
| Dec 18, 6:35 AM EST | River Flood Warning | BGM | Susquehanna | 71 hr |
| Dec 18, 6:35 AM EST | River Flood Warning | BGM | Bradford | 45 hr |
| Dec 18, 8:31 AM EST | River Flood Warning | PHI | Berks | 11 hr |
| Dec 18, 9:02 AM EST | River Flood Warning | BGM | Bradford | 53 hr |
| Dec 18, 9:02 AM EST | River Flood Warning | BGM | Wyoming | 21 hr |
| Dec 18, 9:02 AM EST | River Flood Warning | BGM | Luzerne | 69 hr |
| Dec 18, 9:41 AM EST | River Flood Warning | PHI | Monroe | 6 hr |
| Dec 18, 9:44 AM EST | River Flood Warning | PHI | Monroe | 13 hr |
| Dec 18, 10:06 AM EST | River Flood Warning | PHI | Lehigh, Northampton | 12 hr |
| Dec 18, 11:08 AM EST | River Flood Warning | CTP | Dauphin, Lebanon | 29 hr |
| Dec 18, 11:53 AM EST | River Flood Warning | CTP | Lancaster | 14 hr |
| Dec 18, 2:26 PM EST | River Flood Warning | PHI | Berks | 12 hr |
| Dec 18, 2:59 PM EST | River Flood Warning | PHI | Philadelphia | 9 hr |
| Dec 19, 2:15 AM EST | River Flood Warning | PHI | Bucks | 16 hr |
| Dec 19, 2:17 AM EST | River Flood Warning | PHI | Northampton | 16 hr |
| Dec 19, 3:27 AM EST | River Flood Warning | CTP | Columbia | 11 hr |
| Dec 19, 4:36 AM EST | River Flood Warning | CTP | Columbia, Montour, Northumberland, Union | 23 hr |
| Dec 19, 6:06 AM EST | River Flood Warning | CTP | Dauphin | 15 hr |
| Dec 27, 11:06 PM EST | River Flood Warning | PHI | Chester | 9 hr |
| Dec 28, 12:12 AM EST | River Flood Warning | PHI | Montgomery | 12 hr |
| Dec 28, 12:53 AM EST | River Flood Warning | PHI | Delaware | 3 hr |
| Dec 28, 2:03 AM EST | River Flood Warning | PHI | Chester, Delaware | 15 hr |
| Dec 28, 3:07 AM EST | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 14 hr |
| Dec 28, 3:28 AM EST | River Flood Warning | PHI | Bucks | 9 hr |
| Dec 28, 7:30 AM EST | River Flood Warning | PHI | Montgomery, Philadelphia | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Chester County14
- Montgomery County10
- Delaware County8
- Philadelphia County7
- Bucks County5
- Bradford County4
- Wyoming County3
- Susquehanna County2
- Lebanon County2
- Berks County2
- Monroe County2
- Northampton County2
- Dauphin County2
- Columbia County2
- Schuylkill County1
- Luzerne County1
- Lehigh County1
- Lancaster County1
- Montour County1
- Northumberland County1
- Union County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.