Alert archive / Pennsylvania / Flash Flood Warnings / 2018
Flash Flood Warnings in Pennsylvania, August 2018
79 flash flood warnings in August 2018. 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in August 2018. Tap one for its archive.
- Flash Flood Warnings
- 79
- Busiest day
- August 13, 201817 flash 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 |
|---|---|---|---|---|
| Aug 1, 9:55 PM EDT | Flash Flood Warning | CTP | Lycoming | 3 hr |
| Aug 3, 4:16 AM EDT | Flash Flood Warning | CTP | Centre, Huntingdon | 3 hr |
| Aug 3, 7:32 AM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna, Wyoming | 118 min |
| Aug 3, 8:21 AM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 6 hr |
| Aug 3, 9:05 AM EDT | Flash Flood Warning | CTP | Bedford, Blair | 3 hr |
| Aug 3, 9:28 AM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna, Wyoming | 3 hr |
| Aug 3, 9:45 AM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Clarion, Venango | 2 hr |
| Aug 3, 9:49 AM EDT | Flash Flood Warning | CTP | Centre, Huntingdon | 3 hr |
| Aug 3, 2:32 PM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna, Wyoming | 3 hr |
| Aug 3, 8:08 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 3, 9:03 PM EDT | Flash Flood Warning | PHI | Berks | 8 hr |
| Aug 3, 10:23 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 4 hr |
| Aug 3, 10:57 PM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon, York | 3 hr |
| Aug 4, 1:56 AM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon, York | 5 hr |
| Aug 5, 2:18 PM EDT | Flash Flood Warning | PBZ | Allegheny | 117 min |
| Aug 5, 3:13 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 99 min |
| Aug 5, 4:33 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 88 min |
| Aug 7, 5:12 PM EDT | Flash Flood Warning | BGM | Bradford, Wyoming | 4 hr |
| Aug 7, 6:58 PM EDT | Flash Flood Warning | CTP | Sullivan | 3 hr |
| Aug 8, 6:20 PM EDT | Flash Flood Warning | BGM | Susquehanna | 5 hr |
| Aug 8, 6:58 PM EDT | Flash Flood Warning | BGM | Susquehanna | 5 hr |
| Aug 8, 7:04 PM EDT | Flash Flood Warning | BGM | Wayne | 4 hr |
| Aug 10, 2:04 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 5 hr |
| Aug 10, 3:20 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Aug 10, 4:37 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Aug 10, 4:55 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 77 min |
| Aug 11, 5:19 AM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Aug 11, 7:10 AM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna | 3 hr |
| Aug 11, 10:03 AM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna | 3 hr |
| Aug 11, 10:18 AM EDT | Flash Flood Warning | BGM | Bradford | 117 min |
| Aug 11, 1:33 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Aug 11, 1:40 PM EDT | Flash Flood Warning | PHI | Chester | 4 hr |
| Aug 11, 1:48 PM EDT | Flash Flood Warning | PHI | Delaware, Philadelphia | 4 hr |
| Aug 11, 2:00 PM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Northampton | 9 hr |
| Aug 11, 2:14 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Aug 11, 3:06 PM EDT | Flash Flood Warning | PHI | Northampton | 4 hr |
| Aug 12, 5:46 PM EDT | Flash Flood Warning | CTP | Schuylkill | 3 hr |
| Aug 13, 4:03 AM EDT | Flash Flood Warning | CTP | Lancaster | 3 hr |
| Aug 13, 4:17 AM EDT | Flash Flood Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Union | 9 hr |
| Aug 13, 4:26 AM EDT | Flash Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 6 hr |
| Aug 13, 6:05 AM EDT | Flash Flood Warning | CTP | Sullivan | 6 hr |
| Aug 13, 6:31 AM EDT | Flash Flood Warning | CTP | Columbia | 6 hr |
| Aug 13, 6:50 AM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 6 hr |
| Aug 13, 7:04 AM EDT | Flash Flood Warning | CTP | Columbia, Lycoming | 6 hr |
| Aug 13, 8:14 AM EDT | Flash Flood Warning | BGM | Bradford | 9 hr |
| Aug 13, 8:43 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Lehigh, Montgomery, Northampton, Philadelphia | 4 hr |
| Aug 13, 11:16 AM EDT | Flash Flood Warning | BGM | Bradford | 6 hr |
| Aug 13, 11:23 AM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 3 hr |
| Aug 13, 12:20 PM EDT | Flash Flood Warning | PBZ | Armstrong | 87 min |
| Aug 13, 1:13 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
| Aug 13, 1:27 PM EDT | Flash Flood Warning | BGM | Bradford | 4 hr |
| Aug 13, 5:20 PM EDT | Flash Flood Warning | BGM | Bradford | 4 hr |
| Aug 13, 5:56 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Wayne, Wyoming | 7 hr |
| Aug 13, 6:08 PM EDT | Flash Flood Warning | BGM | Lackawanna, Susquehanna, Wyoming | 7 hr |
| Aug 14, 6:15 AM EDT | Flash Flood Warning | BGM | Bradford | 9 hr |
| Aug 14, 6:41 AM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 3 hr |
| Aug 14, 6:50 AM EDT | Flash Flood Warning | BGM | Wyoming | 3 hr |
| Aug 14, 7:18 AM EDT | Flash Flood Warning | BGM | Susquehanna | 9 hr |
| Aug 14, 7:45 AM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna | 8 hr |
| Aug 14, 9:01 AM EDT | Flash Flood Warning | BGM | Susquehanna | 6 hr |
| Aug 14, 9:27 AM EDT | Flash Flood Warning | BGM | Susquehanna, Wayne | 6 hr |
| Aug 14, 9:36 AM EDT | Flash Flood Warning | BGM | Bradford | 6 hr |
| Aug 14, 9:43 AM EDT | Flash Flood Warning | BGM | Wyoming | 6 hr |
| Aug 14, 7:49 PM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna | 5 hr |
| Aug 14, 8:18 PM EDT | Flash Flood Warning | BGM | Bradford, Susquehanna, Wyoming | 4 hr |
| Aug 17, 6:40 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Aug 21, 7:13 PM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 3 hr |
| Aug 21, 10:16 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Montgomery | 7 hr |
| Aug 21, 10:26 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 21, 11:08 PM EDT | Flash Flood Warning | PHI | Bucks, Lehigh, Northampton | 4 hr |
| Aug 29, 10:29 PM EDT | Flash Flood Warning | PBZ | Fayette | 3 hr |
| Aug 31, 9:58 AM EDT | Flash Flood Warning | CTP | Lebanon | 3 hr |
| Aug 31, 10:09 AM EDT | Flash Flood Warning | PHI | Berks | 7 hr |
| Aug 31, 1:31 PM EDT | Flash Flood Warning | CTP | Lancaster | 9 hr |
| Aug 31, 2:55 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Aug 31, 3:59 PM EDT | Flash Flood Warning | PHI | Berks, Chester | 4 hr |
| Aug 31, 4:38 PM EDT | Flash Flood Warning | CTP | Lancaster, York | 3 hr |
| Aug 31, 4:44 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland | 3 hr |
| Aug 31, 5:08 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bradford County16
- Susquehanna County14
- Wyoming County9
- Lancaster County7
- York County7
- Berks County7
- Allegheny County7
- Lycoming County6
- Sullivan County5
- Northampton County5
- Chester County5
- Armstrong County4
- Lehigh County4
- Lebanon County4
- Montgomery County4
- Bucks County4
- Washington County3
- Westmoreland County3
- Wayne County3
- Delaware County3
- Columbia County3
- Centre County2
- Huntingdon County2
- Butler County2
- Clarion County2
- Philadelphia County2
- Schuylkill County2
- Lackawanna County2
- Bedford County1
- Blair County1
- Venango County1
- Montour County1
- Northumberland County1
- Union County1
- Dauphin County1
- Luzerne County1
- Indiana County1
- Jefferson County1
- Fayette County1
- Adams County1
1 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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. Rebuilt daily.