Alert archive / Pennsylvania / Tornado Warnings / 2011
Tornado Warnings in Pennsylvania, April 2011
18 tornado warnings in April 2011. 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 warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in April 2011. Tap one for its archive.
- Tornado Warnings
- 18
- Busiest day
- April 28, 20119 tornado 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 |
|---|---|---|---|---|
| Apr 16, 8:05 PM EDT | Tornado Warning | CTP | Adams, York | 25 min |
| Apr 16, 8:29 PM EDT | Tornado Warning | CTP | Lancaster, York | 31 min |
| Apr 25, 2:37 PM EDT | Tornado Warning | PBZ | Armstrong, Clarion, Jefferson | 23 min |
| Apr 25, 5:50 PM EDT | Tornado Warning | PBZ | Forest | 25 min |
| Apr 27, 5:57 PM EDT | Tornado Warning | CTP | Franklin, Fulton, Huntingdon | 33 min |
| Apr 27, 5:59 PM EDT | Tornado Warning | CTP | Cameron, Potter | 31 min |
| Apr 27, 6:29 PM EDT | Tornado Warning | CTP | Cumberland, Franklin, Perry | 31 min |
| Apr 27, 6:30 PM EDT | Tornado Warning | CTP | Potter, Tioga | 30 min |
| Apr 27, 6:40 PM EDT | Tornado Warning | CTP | Centre, Clinton, Mifflin, Union | 35 min |
| Apr 27, 8:09 PM EDT | Tornado Warning | CTP | Lycoming, Sullivan | 26 min |
| Apr 28, 5:35 AM EDT | Tornado Warning | CTP | Adams, Cumberland, York | 25 min |
| Apr 28, 5:46 AM EDT | Tornado Warning | BGM | Susquehanna, Wayne | 44 min |
| Apr 28, 8:21 AM EDT | Tornado Warning | CTP | York | 24 min |
| Apr 28, 8:44 AM EDT | Tornado Warning | CTP | Lancaster, York | 14 min |
| Apr 28, 9:30 AM EDT | Tornado Warning | CTP | Lancaster, York | 15 min |
| Apr 28, 9:58 AM EDT | Tornado Warning | CTP | York | 21 min |
| Apr 28, 10:13 AM EDT | Tornado Warning | CTP | Lancaster, York | 32 min |
| Apr 28, 10:58 AM EDT | Tornado Warning | PHI | Bucks, Northampton | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- York County8
- Lancaster County4
- Adams County2
- Franklin County2
- Potter County2
- Cumberland County2
- Armstrong County1
- Clarion County1
- Jefferson County1
- Forest County1
- Fulton County1
- Huntingdon County1
- Cameron County1
- Perry County1
- Tioga County1
- Centre County1
- Clinton County1
- Mifflin County1
- Union County1
- Lycoming County1
- Sullivan County1
- Susquehanna County1
- Wayne County1
- Bucks County1
- Northampton County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.