Alert archive / Pennsylvania / Tornado Watches / 2017
Tornado Watches in Pennsylvania, May 2017
2 tornado watches in May 2017. 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in May 2017. Tap one for its archive.
- Tornado Watches
- 2
- Busiest day
- May 1, 20172 tornado 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, 12:32 PM EDT | Tornado Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more | 4 hr |
| May 1, 2:12 PM EDT | Tornado Watch | SPC | Bedford, Blair, Bradford, Cambria, Cameron, Centre and 23 more | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegheny County1
- Armstrong County1
- Beaver County1
- Butler County1
- Clarion County1
- Crawford County1
- Erie County1
- Fayette County1
- Forest County1
- Greene County1
- Indiana County1
- Jefferson County1
- Lawrence County1
- Mercer County1
- Venango County1
- Washington County1
- Westmoreland County1
- Bedford County1
- Blair County1
- Bradford County1
- Cambria County1
- Cameron County1
- Centre County1
- Clearfield County1
- Clinton County1
- Columbia County1
- Elk County1
- Fulton County1
- Huntingdon County1
- Juniata County1
- Lackawanna County1
- Luzerne County1
- Lycoming County1
- McKean County1
- Mifflin County1
- Montour County1
- Northumberland County1
- Potter County1
- Snyder County1
- Somerset County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.