Alert archive / Pennsylvania / Flash Flood Watches

Flash Flood Watches in Pennsylvania, 2021

40 flash flood watches 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 flash flood watches reaches back to 2005.

Flash Flood Watches by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Flash Flood Watches
40
Busiest month
July15 flash flood watches
Busiest day
July 16, 20214 flash flood watches

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.

IssuedProductOfficeCountiesLasted
May 4, 6:00 PM EDTFlash Flood WatchPBZFayette, Greene11 hr
Jun 3, 9:37 AM EDTFlash Flood WatchPHIBucks, Chester, Delaware, Montgomery, Philadelphia12 hr
Jun 10, 11:47 AM EDTFlash Flood WatchCTPAdams, Bedford, Blair, Cambria, Cumberland, Franklin and 5 more9 hr
Jun 30, 3:19 PM EDTFlash Flood WatchPHIBucks, Chester, Delaware, Montgomery, Philadelphia26 hr
Jul 7, 3:32 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more42 hr
Jul 8, 9:33 AM EDTFlash Flood WatchBGMLackawanna, Pike, Wayne25 hr
Jul 11, 3:31 AM EDTFlash Flood WatchBGMBradford, Susquehanna30 hr
Jul 11, 3:45 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more36 hr
Jul 11, 4:42 PM EDTFlash Flood WatchCTPColumbia, Lycoming, Sullivan, Tioga9 hr
Jul 12, 3:18 AM EDTFlash Flood WatchCLECrawford, Erie18 hr
Jul 12, 10:58 AM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more15 hr
Jul 12, 1:21 PM EDTFlash Flood WatchCTPColumbia, Cumberland, Dauphin, Juniata, Lebanon, Lycoming and 12 more13 hr
Jul 13, 12:39 PM EDTFlash Flood WatchCTPColumbia, Lycoming, Montour, Northumberland, Snyder, Sullivan and 2 more11 hr
Jul 13, 12:48 PM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Susquehanna, Wyoming11 hr
Jul 16, 3:07 AM EDTFlash Flood WatchCLECrawford, Erie36 hr
Jul 16, 1:46 PM EDTFlash Flood WatchCTPAdams, Cameron, Clinton, Columbia, Dauphin, Elk and 12 more32 hr
Jul 16, 2:24 PM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more32 hr
Jul 16, 3:17 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more35 hr
Jul 17, 2:46 AM EDTFlash Flood WatchPBZArmstrong, Beaver, Butler, Clarion, Forest, Jefferson and 3 more15 hr
Aug 17, 11:52 AM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more44 hr
Aug 17, 1:28 PM EDTFlash Flood WatchPBZAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more27 hr
Aug 17, 2:13 PM EDTFlash Flood WatchCTPAdams, Bedford, Blair, Cambria, Cameron, Centre and 27 more34 hr
Aug 17, 3:09 PM EDTFlash Flood WatchPHIBerks, Carbon, Lehigh, Monroe, Northampton36 hr
Aug 18, 3:23 AM EDTFlash Flood WatchCLECrawford12 hr
Aug 21, 3:31 PM EDTFlash Flood WatchBGMLackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming48 hr
Aug 26, 3:30 PM EDTFlash Flood WatchPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more48 hr
Aug 27, 4:40 AM EDTFlash Flood WatchCTPDauphin, Lancaster, Lebanon, York17 hr
Aug 30, 4:11 AM EDTFlash Flood WatchCTPAdams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more67 hr
Aug 30, 4:33 AM EDTFlash Flood WatchPBZAllegheny, Armstrong, Beaver, Butler, Fayette, Greene and 2 more57 hr
Aug 30, 4:54 AM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more70 hr
Aug 30, 5:00 AM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more71 hr
Sep 7, 2:33 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more37 hr
Sep 7, 3:28 PM EDTFlash Flood WatchBGMLackawanna, Luzerne, Pike, Wayne35 hr
Sep 8, 6:21 PM EDTFlash Flood WatchCTPAdams, Lancaster, York7 hr
Sep 22, 3:24 AM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more41 hr
Sep 22, 3:42 AM EDTFlash Flood WatchCTPAdams, Bedford, Blair, Cambria, Cameron, Centre and 26 more33 hr
Sep 22, 3:05 PM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more37 hr
Oct 24, 3:09 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more48 hr
Oct 25, 3:01 PM EDTFlash Flood WatchBGMBradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more33 hr
Oct 29, 2:55 PM EDTFlash Flood WatchBGMBradford11 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

26 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 16, 20214flash flood watches
  2. August 17, 20214flash flood watches
  3. August 30, 20214flash flood watches
  4. July 11, 20213flash flood watches
  5. July 12, 20213flash flood watches
  6. September 22, 20213flash flood watches
  7. July 13, 20212flash flood watches
  8. September 7, 20212flash flood watches
  9. May 4, 20211flash flood watches
  10. June 3, 20211flash flood watches
  11. June 10, 20211flash flood watches
  12. June 30, 20211flash flood watches

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. Rebuilt daily.