Alert archive / Pennsylvania / Flash Flood Warnings / 2026
Flash Flood Warnings in Pennsylvania, June 2026
21 flash flood warnings in June 2026. 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 June 2026. Tap one for its archive.
- Flash Flood Warnings
- 21
- Busiest day
- June 22, 20267 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 |
|---|---|---|---|---|
| Jun 11, 5:31 PM EDT | Flash Flood Warning | CTP | Cameron, Clearfield, Elk | 2 hr |
| Jun 11, 7:58 PM EDT | Flash Flood Warning | BGM | Luzerne, Wyoming | 2 hr |
| Jun 11, 8:04 PM EDT | Flash Flood Warning | CTP | Columbia, Lycoming, Sullivan | 3 hr |
| Jun 11, 8:39 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne | 2 hr |
| Jun 11, 9:38 PM EDT | Flash Flood Warning | BGM | Pike | 67 min |
| Jun 14, 9:50 PM EDT | Flash Flood Warning | PHI | Chester | 3 hr |
| Jun 14, 10:15 PM EDT | Flash Flood Warning | PHI | Chester, Delaware | 3 hr |
| Jun 14, 10:26 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jun 14, 10:38 PM EDT | Flash Flood Warning | PHI | Delaware | 3 hr |
| Jun 14, 10:51 PM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 3 hr |
| Jun 22, 4:06 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jun 22, 4:46 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 2 hr |
| Jun 22, 6:02 PM EDT | Flash Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 4 hr |
| Jun 22, 6:26 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 4 hr |
| Jun 22, 6:31 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jun 22, 6:36 PM EDT | Flash Flood Warning | PHI | Philadelphia | 3 hr |
| Jun 22, 6:48 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jun 22, 11:21 PM EDT | Flash Flood Warning | PHI | Northampton | 3 hr |
| Jun 25, 10:45 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 72 min |
| Jun 28, 5:22 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Jun 28, 7:51 PM EDT | Flash Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 114 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Philadelphia County6
- Delaware County5
- Montgomery County4
- Chester County3
- Bucks County3
- Westmoreland County3
- Luzerne County2
- Washington County2
- Fayette County2
- Allegheny County2
- Cameron County1
- Clearfield County1
- Elk County1
- Wyoming County1
- Columbia County1
- Lycoming County1
- Sullivan County1
- Lackawanna County1
- Pike County1
- Greene County1
- Northampton County1
Nearby
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.