Alert archive / Pennsylvania / 2009
Weather alerts in Pennsylvania, January 2009
89 weather alerts in January 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in January 2009. Tap one for its archive.
- Alerts
- 89
- Warnings
- 25
- Watches
- 14
- Advisories
- 39
- Busiest day
- January 6, 200910 alerts
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 |
|---|---|---|---|---|
| Dec 31, 9:12 PM EST | Lake Effect Snow Warning | CLE | Erie | 6 hr |
| Jan 3, 9:27 PM EST | Freezing Rain Advisory | CLE | Crawford, Erie | 14 hr |
| Jan 4, 11:59 AM EST | Dense Fog Advisory | CLE | Crawford, Erie | 8 hr |
| Jan 5, 3:10 AM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 19 more | 19 hr |
| Jan 5, 3:46 AM EST | Winter Storm Watch | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 25 hr |
| Jan 5, 3:50 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 36 hr |
| Jan 5, 9:46 PM EST | Winter Storm Warning | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 36 hr |
| Jan 5, 9:53 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 36 hr |
| Jan 5, 10:11 PM EST | Ice Storm Warning | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 20 more | 39 hr |
| Jan 5, 10:11 PM EST | Winter Weather Advisory | CTP | Adams, Cambria, Cameron, Centre, Clearfield, Clinton and 10 more | 72 hr |
| Jan 6, 3:07 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 41 hr |
| Jan 6, 4:39 AM EST | Winter Storm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 16 hr |
| Jan 6, 4:39 AM EST | Winter Weather Advisory | PHI | Delaware, Philadelphia | 23 hr |
| Jan 6, 1:05 PM EST | Winter Weather Advisory | PBZ | Greene | 2 hr |
| Jan 6, 4:23 PM EST | Winter Storm Warning | BGM | Pike, Wayne | 28 hr |
| Jan 6, 5:17 PM EST | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Berks and 38 more | 4 hr |
| Jan 6, 8:55 PM EST | Ice Storm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 19 hr |
| Jan 7, 12:10 AM EST | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Bucks, Cameron, Carbon and 36 more | 4 hr |
| Jan 7, 6:08 AM EST | Mesoscale Discussion | SPC | Carbon, Lackawanna, Monroe, Pike, Susquehanna, Wayne and 1 more | 3 hr |
| Jan 7, 8:21 AM EST | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 8 hr |
| Jan 7, 8:32 AM EST | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Montgomery | 8 hr |
| Jan 7, 3:31 PM EST | Winter Weather Advisory | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 37 hr |
| Jan 7, 8:00 PM EST | Lake Effect Snow Warning | CLE | Erie | 44 hr |
| Jan 7, 8:00 PM EST | Lake Effect Snow Advisory | CLE | Crawford, Erie | 37 hr |
| Jan 7, 10:42 PM EST | River Flood Advisory | PBZ | Allegheny | 18 hr |
| Jan 8, 8:31 AM EST | Lake Effect Snow Warning | CTP | McKean, Warren | 25 hr |
| Jan 8, 2:40 PM EST | Winter Storm Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 22 hr |
| Jan 8, 3:30 PM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 23 hr |
| Jan 8, 4:10 PM EST | Winter Storm Watch | CLE | Crawford, Erie | 19 hr |
| Jan 9, 2:38 AM EST | Winter Storm Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 13 hr |
| Jan 9, 4:19 AM EST | Winter Storm Watch | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 11 hr |
| Jan 9, 11:12 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 32 hr |
| Jan 9, 12:32 PM EST | Winter Storm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 5 more | 31 hr |
| Jan 9, 12:32 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 34 hr |
| Jan 9, 2:32 PM EST | Winter Storm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 20 more | 30 hr |
| Jan 9, 2:32 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 37 hr |
| Jan 9, 3:27 PM EST | Winter Storm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 37 hr |
| Jan 9, 3:27 PM EST | Winter Weather Advisory | PHI | Berks, Delaware, Lehigh, Northampton, Philadelphia | 37 hr |
| Jan 9, 4:07 PM EST | Winter Storm Warning | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 36 hr |
| Jan 10, 6:33 AM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 18 more | 5 hr |
| Jan 10, 12:56 PM EST | Mesoscale Discussion | SPC | Bradford, Lackawanna, Lycoming, Potter, Sullivan, Susquehanna and 3 more | 4 hr |
| Jan 10, 3:29 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 13 hr |
| Jan 10, 7:58 PM EST | Mesoscale Discussion | SPC | Bucks, Carbon, Lackawanna, Lehigh, Luzerne, Monroe and 5 more | 4 hr |
| Jan 11, 8:09 PM EST | Winter Weather Advisory | CTP | Somerset | 11 hr |
| Jan 12, 2:51 PM EST | Wind Chill Advisory | CLE | Crawford, Erie | 31 hr |
| Jan 12, 2:51 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 31 hr |
| Jan 14, 3:45 AM EST | Lake Effect Snow Watch | CLE | Crawford, Erie | 12 hr |
| Jan 14, 3:46 AM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 38 hr |
| Jan 14, 4:25 AM EST | Lake Effect Snow Watch | CTP | McKean, Warren | 23 hr |
| Jan 14, 4:25 AM EST | Winter Weather Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 15 more | 38 hr |
| Jan 14, 2:36 PM EST | Wind Chill Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 69 hr |
| Jan 14, 2:55 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 12 hr |
| Jan 14, 3:34 PM EST | Winter Weather Advisory | PHI | Carbon, Monroe, Northampton | 17 hr |
| Jan 14, 3:50 PM EST | Lake Effect Snow Warning | CLE | Crawford, Erie | 42 hr |
| Jan 14, 3:50 PM EST | Wind Chill Advisory | CLE | Crawford, Erie | 69 hr |
| Jan 14, 9:45 PM EST | Winter Storm Warning | CTP | Cambria, Somerset | 9 hr |
| Jan 15, 3:30 AM EST | Lake Effect Snow Warning | CTP | Warren | 21 hr |
| Jan 15, 3:30 AM EST | Lake Effect Snow Advisory | CTP | McKean | 21 hr |
| Jan 15, 3:30 AM EST | Wind Chill Warning | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 7 more | 32 hr |
| Jan 15, 3:30 AM EST | Wind Chill Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 10 more | 56 hr |
| Jan 15, 3:31 AM EST | Lake Effect Snow Advisory | PBZ | Forest, Mercer, Venango | 17 hr |
| Jan 15, 3:41 AM EST | Wind Chill Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 56 hr |
| Jan 15, 3:54 AM EST | Wind Chill Warning | CLE | Crawford | 34 hr |
| Jan 15, 3:52 PM EST | Wind Chill Advisory | PHI | Carbon, Monroe | 42 hr |
| Jan 17, 2:36 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 45 hr |
| Jan 17, 2:44 PM EST | Winter Weather Advisory | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 4 more | 31 hr |
| Jan 17, 2:54 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 24 hr |
| Jan 18, 7:16 AM EST | Winter Weather Advisory | BGM | Pike, Wayne | 3 hr |
| Jan 18, 8:56 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 6 hr |
| Jan 18, 9:13 AM EST | Winter Storm Warning | PBZ | Armstrong, Clarion, Forest, Jefferson, Mercer, Venango | 13 hr |
| Jan 26, 2:42 AM EST | Winter Storm Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 25 hr |
| Jan 26, 3:05 AM EST | Winter Storm Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 33 hr |
| Jan 26, 3:30 AM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 32 hr |
| Jan 26, 12:35 PM EST | Winter Storm Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 23 hr |
| Jan 26, 2:41 PM EST | Winter Storm Watch | CLE | Crawford, Erie | 13 hr |
| Jan 27, 3:18 AM EST | Winter Storm Warning | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 40 hr |
| Jan 27, 3:29 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 40 hr |
| Jan 27, 7:02 AM EST | Winter Weather Advisory | PBZ | Greene, Washington | 5 hr |
| Jan 27, 11:40 AM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 31 hr |
| Jan 27, 11:48 AM EST | Winter Storm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 31 hr |
| Jan 27, 11:48 AM EST | Winter Weather Advisory | PBZ | Greene | 10 hr |
| Jan 27, 11:56 AM EST | Winter Storm Warning | BGM | Bradford, Susquehanna, Wayne | 33 hr |
| Jan 27, 11:56 AM EST | Winter Weather Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 32 hr |
| Jan 27, 7:25 PM EST | Mesoscale Discussion | SPC | Fayette, Greene, Washington | 6 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Berks and 60 more | 5 hr |
| Jan 28, 7:40 AM EST | Mesoscale Discussion | SPC | Beaver, Crawford, Lawrence, Mercer | 5 hr |
| Jan 28, 7:53 AM EST | Mesoscale Discussion | SPC | Berks, Blair, Bradford, Cambria, Cameron, Carbon and 34 more | 5 hr |
| Jan 28, 10:01 AM EST | Dense Fog Advisory | PHI | Delaware, Philadelphia | 7 hr |
| Jan 28, 12:24 PM EST | Mesoscale Discussion | SPC | Lackawanna, Pike, Wayne | 4 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Mesoscale Discussion | 11 |
| Flooding | |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 1 |
| Winter | |
| Ice Storm Warning | 2 |
| Lake Effect Snow Warning | 5 |
| Winter Storm Warning | 16 |
| Lake Effect Snow Watch | 2 |
| Winter Storm Watch | 12 |
| Freezing Rain Advisory | 1 |
| Lake Effect Snow Advisory | 3 |
| Winter Weather Advisory | 24 |
| Cold | |
| Wind Chill Warning | 2 |
| Wind Chill Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Crawford County20
- Erie County19
- Cambria County17
- Forest County17
- Mercer County17
- Wayne County17
- Centre County16
- Clinton County16
- Lycoming County16
- Somerset County16
- Jefferson County16
- Venango County16
- Cameron County16
- Clearfield County16
- Elk County16
- Clarion County15
- Greene County15
- McKean County15
- Warren County15
- Pike County15
- Carbon County14
- Monroe County14
- Washington County14
- Sullivan County14
- Potter County14
- Lackawanna County14
- Blair County13
- Huntingdon County13
- Berks County13
- Northampton County13
- Allegheny County13
- Armstrong County13
- Beaver County13
- Lawrence County13
- Tioga County13
- Susquehanna County13
- Columbia County12
- Mifflin County12
- Montour County12
- Northumberland County12
27 more counties
- Snyder County12
- Union County12
- Lehigh County12
- Butler County12
- Wyoming County12
- Dauphin County11
- Juniata County11
- Lebanon County11
- Perry County11
- Schuylkill County11
- Bradford County11
- Luzerne County11
- Bedford County10
- Cumberland County10
- Lancaster County10
- York County10
- Adams County9
- Fulton County9
- Franklin County8
- Delaware County7
- Philadelphia County7
- Bucks County5
- Montgomery County5
- Fayette County4
- Indiana County4
- Westmoreland County3
- Chester County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.