Alert archive / Pennsylvania / Severe Thunderstorm Watches / 2007
Severe Thunderstorm Watches in Pennsylvania, May 2007
4 severe thunderstorm watches in May 2007. 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in May 2007. Tap one for its archive.
- Severe Thunderstorm Watches
- 4
- Busiest day
- May 1, 20071 severe thunderstorm 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 1, 4:22 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more | 7 hr |
| May 10, 12:17 PM EDT | Severe Thunderstorm Watch | SPC | Blair, Bradford, Centre, Clinton, Columbia, Cumberland and 21 more | 8 hr |
| May 16, 1:26 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Carbon, Chester, Delaware and 9 more | 7 hr |
| May 27, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 40 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegheny County2
- Armstrong County2
- Beaver County2
- Butler County2
- Clarion County2
- Forest County2
- Indiana County2
- Jefferson County2
- Lawrence County2
- Mercer County2
- Venango County2
- Washington County2
- Westmoreland County2
- Blair County2
- Bradford County2
- Centre County2
- Clinton County2
- Columbia County2
- Huntingdon County2
- Juniata County2
- Lackawanna County2
- Lebanon County2
- Luzerne County2
- Lycoming County2
- Mifflin County2
- Montour County2
- Northumberland County2
- Pike County2
- Potter County2
- Schuylkill County2
- Snyder County2
- Sullivan County2
- Susquehanna County2
- Tioga County2
- Union County2
- Wayne County2
- Wyoming County2
- Crawford County1
- Erie County1
- Cumberland County1
26 more counties
- Dauphin County1
- Perry County1
- Adams County1
- Berks County1
- Bucks County1
- Carbon County1
- Chester County1
- Delaware County1
- Lancaster County1
- Lehigh County1
- Monroe County1
- Montgomery County1
- Northampton County1
- Philadelphia County1
- York County1
- Bedford County1
- Cambria County1
- Cameron County1
- Clearfield County1
- Elk County1
- Fayette County1
- Fulton County1
- Greene County1
- McKean County1
- Somerset County1
- Warren County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.