Alert archive / Pennsylvania / Winter Weather Advisories
Winter Weather Advisories in Pennsylvania, 2011
90 winter weather advisories in 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 winter weather advisories reaches back to 2005.
Winter Weather Advisories by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Winter Weather Advisories
- 90
- Busiest month
- January33 winter weather advisories
- Busiest day
- January 6, 20115 winter weather advisories
Over time
By month
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 |
|---|---|---|---|---|
| Jan 6, 1:31 PM EST | Winter Weather Advisory | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 25 hr |
| Jan 6, 2:36 PM EST | Winter Weather Advisory | CTP | Columbia, Lycoming, Montour, Northumberland, Potter, Schuylkill and 2 more | 22 hr |
| Jan 6, 2:50 PM EST | Winter Weather Advisory | PBZ | Forest, Mercer, Venango | 20 hr |
| Jan 6, 3:14 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 24 hr |
| Jan 6, 3:31 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 6 hr |
| Jan 7, 2:33 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 15 more | 37 hr |
| Jan 7, 3:34 PM EST | Winter Weather Advisory | PHI | Berks, Delaware, Lehigh, Philadelphia | 27 hr |
| Jan 7, 8:54 PM EST | Winter Weather Advisory | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 4 more | 39 hr |
| Jan 10, 2:48 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 61 hr |
| Jan 10, 3:14 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 3 days |
| Jan 10, 3:19 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 3 days |
| Jan 11, 3:34 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 32 hr |
| Jan 11, 4:24 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 26 hr |
| Jan 17, 4:11 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 32 hr |
| Jan 17, 4:15 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 47 hr |
| Jan 17, 6:03 AM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 20 more | 33 hr |
| Jan 17, 2:20 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 20 hr |
| Jan 18, 3:33 PM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 16 hr |
| Jan 18, 8:34 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Centre, Clinton, Columbia and 19 more | 11 hr |
| Jan 19, 2:40 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 37 hr |
| Jan 19, 2:54 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 54 hr |
| Jan 20, 3:35 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 29 hr |
| Jan 20, 4:13 AM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 40 hr |
| Jan 20, 8:38 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 22 hr |
| Jan 21, 3:23 AM EST | Winter Weather Advisory | PBZ | Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more | 15 hr |
| Jan 25, 2:24 PM EST | Winter Weather Advisory | CTP | Bedford, Blair, Cambria, Columbia, Cumberland, Dauphin and 13 more | 33 hr |
| Jan 25, 2:54 PM EST | Winter Weather Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne | 33 hr |
| Jan 25, 8:58 PM EST | Winter Weather Advisory | PBZ | Fayette, Greene, Westmoreland | 24 hr |
| Jan 26, 4:07 AM EST | Winter Weather Advisory | PHI | Carbon, Lehigh, Monroe, Northampton | 23 hr |
| Jan 29, 10:45 AM EST | Winter Weather Advisory | CTP | Cameron, Clinton, Elk, Lycoming, McKean, Potter and 3 more | 5 hr |
| Jan 31, 10:55 AM EST | Winter Weather Advisory | PBZ | Greene | 25 hr |
| Jan 31, 3:07 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 25 hr |
| Jan 31, 3:18 PM EST | Winter Weather Advisory | PHI | Delaware, Philadelphia | 24 hr |
| Feb 1, 3:04 PM EST | Winter Weather Advisory | PBZ | Allegheny, Washington | 13 hr |
| Feb 2, 8:54 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 6 hr |
| Feb 2, 8:58 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 4 hr |
| Feb 4, 4:24 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 41 hr |
| Feb 4, 2:17 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 36 hr |
| Feb 4, 2:47 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 32 hr |
| Feb 4, 3:46 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 7 more | 30 hr |
| Feb 5, 3:54 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 18 hr |
| Feb 7, 2:52 PM EST | Winter Weather Advisory | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 7 more | 19 hr |
| Feb 7, 3:30 PM EST | Winter Weather Advisory | BGM | Bradford, Susquehanna, Wayne, Wyoming | 16 hr |
| Feb 7, 3:45 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Clarion, Fayette, Forest, Greene and 3 more | 20 hr |
| Feb 20, 3:32 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 31 hr |
| Feb 20, 3:52 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 47 hr |
| Feb 20, 4:00 AM EST | Winter Weather Advisory | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 17 hr |
| Feb 20, 4:03 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 30 hr |
| Feb 20, 4:29 AM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 30 hr |
| Feb 20, 8:42 PM EST | Winter Weather Advisory | PBZ | Armstrong, Butler, Lawrence | 13 hr |
| Feb 21, 12:08 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 16 hr |
| Feb 21, 1:22 PM EST | Winter Weather Advisory | CTP | Centre, Clearfield, Dauphin, Juniata, Lancaster, Lebanon and 3 more | 17 hr |
| Feb 21, 3:13 PM EST | Winter Weather Advisory | PHI | 15 hr | |
| Feb 21, 4:45 PM EST | Winter Weather Advisory | PBZ | Greene | 11 hr |
| Feb 23, 11:19 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 11 hr |
| Feb 24, 2:48 PM EST | Winter Weather Advisory | PBZ | Armstrong, Beaver, Butler, Clarion, Forest, Jefferson and 3 more | 24 hr |
| Feb 24, 3:31 PM EST | Winter Weather Advisory | BGM | Bradford, Susquehanna, Wayne | 25 hr |
| Feb 24, 9:58 PM EST | Winter Weather Advisory | CTP | Cameron, Clinton, Elk, Lycoming, Sullivan, Tioga | 18 hr |
| Mar 5, 3:22 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 21 hr |
| Mar 5, 7:50 PM EST | Winter Weather Advisory | PBZ | Butler, Clarion, Forest, Jefferson, Lawrence, Mercer and 1 more | 19 hr |
| Mar 5, 10:50 PM EST | Winter Weather Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 13 more | 32 hr |
| Mar 6, 3:37 AM EST | Winter Weather Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 28 hr |
| Mar 6, 4:11 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 31 hr |
| Mar 6, 2:41 PM EST | Winter Weather Advisory | PBZ | Fayette, Westmoreland | 6 hr |
| Mar 8, 2:18 PM EST | Winter Weather Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 5 more | 38 hr |
| Mar 9, 3:47 AM EST | Winter Weather Advisory | PHI | Carbon, Monroe | 27 hr |
| Mar 10, 3:51 PM EST | Winter Weather Advisory | PBZ | Armstrong, Clarion, Fayette, Forest, Greene, Jefferson and 1 more | 26 hr |
| Mar 11, 1:01 AM EST | Winter Weather Advisory | CTP | Cambria, Clearfield, Elk, McKean, Somerset, Warren | 21 hr |
| Mar 20, 4:03 AM EDT | Winter Weather Advisory | PHI | Carbon, Monroe, Northampton | 29 hr |
| Mar 22, 3:35 PM EDT | Winter Weather Advisory | PHI | Berks, Lehigh, Northampton | 19 hr |
| Mar 22, 3:49 PM EDT | Winter Weather Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 7 more | 22 hr |
| Mar 22, 3:57 PM EDT | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 39 hr |
| Mar 23, 5:29 PM EDT | Winter Weather Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 5 more | 4 hr |
| Mar 23, 9:30 PM EDT | Winter Weather Advisory | PHI | Carbon, Lehigh, Monroe, Northampton | 9 hr |
| Mar 31, 2:22 PM EDT | Winter Weather Advisory | CTP | Columbia, Schuylkill, Sullivan | 8 hr |
| Mar 31, 3:59 PM EDT | Winter Weather Advisory | PHI | Lehigh, Northampton | 12 hr |
| Apr 1, 3:57 AM EDT | Winter Weather Advisory | PHI | Carbon, Monroe | 8 hr |
| Apr 2, 6:32 AM EDT | Winter Weather Advisory | CTP | Bedford, Cambria, Somerset | 6 hr |
| Apr 6, 5:14 PM EDT | Winter Weather Advisory | CTP | McKean, Potter, Warren | 13 hr |
| Oct 28, 12:38 PM EDT | Winter Weather Advisory | PBZ | Fayette, Westmoreland | 25 hr |
| Oct 28, 1:19 PM EDT | Winter Weather Advisory | CTP | Cameron, Elk, McKean, Potter, Warren | 30 hr |
| Oct 28, 3:52 PM EDT | Winter Weather Advisory | PHI | Delaware, Philadelphia | 31 hr |
| Dec 7, 2:35 AM EST | Winter Weather Advisory | PBZ | Fayette, Greene, Westmoreland | 17 hr |
| Dec 7, 4:12 AM EST | Winter Weather Advisory | PHI | Berks, Lehigh, Northampton | 23 hr |
| Dec 7, 4:33 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 22 hr |
| Dec 7, 4:51 AM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 20 more | 20 hr |
| Dec 8, 3:30 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 19 hr |
| Dec 27, 3:37 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 27 hr |
| Dec 27, 4:15 AM EST | Winter Weather Advisory | CTP | Cambria, Elk, McKean, Somerset, Warren | 29 hr |
| Dec 27, 4:21 AM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Elk County15
- Lehigh County14
- Northampton County14
- Lycoming County14
- Sullivan County14
- Forest County14
- Wayne County14
- Cambria County14
- Centre County14
- Fayette County14
- Westmoreland County14
- Clinton County14
- McKean County14
- Carbon County13
- Monroe County13
- Bradford County13
- Susquehanna County13
- Clearfield County13
- Somerset County13
- Clarion County13
- Jefferson County13
- Warren County13
- Schuylkill County12
- Mercer County12
- Venango County12
- Lackawanna County12
- Luzerne County12
- Pike County12
- Wyoming County12
- Bedford County12
- Snyder County12
- Cameron County12
- Berks County11
- Columbia County11
- Montour County11
- Northumberland County11
- Potter County11
- Tioga County11
- Blair County11
- Armstrong County11
23 more counties
- Crawford County10
- Erie County10
- Dauphin County10
- Juniata County10
- Lebanon County10
- Mifflin County10
- Perry County10
- Butler County10
- Lawrence County10
- Union County10
- Cumberland County9
- Franklin County9
- Fulton County9
- Huntingdon County9
- Lancaster County9
- Greene County9
- Adams County8
- York County8
- Allegheny County8
- Delaware County7
- Philadelphia County7
- Beaver County7
- Washington County6
The busiest days
Days with the most alerts issued, by UTC date.
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. Warning verification from the Mesonet's Cow. Rebuilt daily.