Alert archive / Pennsylvania / Flash Flood Watches / 2018
Flash Flood Watches in Pennsylvania, May 2018
5 flash flood watches in May 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in May 2018. Tap one for its archive.
- Flash Flood Watches
- 5
- Busiest day
- May 15, 20183 flash flood watches
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 |
|---|---|---|---|---|
| May 15, 2:42 AM EDT | Flash Flood Watch | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 20 hr |
| May 15, 3:40 AM EDT | Flash Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 21 hr |
| May 15, 3:47 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 5 more | 15 hr |
| May 26, 11:38 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 23 hr |
| May 27, 1:14 PM EDT | Flash Flood Watch | CTP | Adams, Bedford, Cumberland, Franklin, Fulton, Lancaster and 2 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Berks County2
- Bucks County2
- Chester County2
- Delaware County2
- Lehigh County2
- Montgomery County2
- Philadelphia County2
- Adams County2
- Bedford County2
- Cumberland County2
- Franklin County2
- Fulton County2
- Lancaster County2
- Somerset County2
- York County2
- Allegheny County1
- Fayette County1
- Greene County1
- Washington County1
- Westmoreland County1
- Dauphin County1
- Lebanon County1
- Perry County1
- Northampton County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.