Alert archive / Pennsylvania / 2021
Weather alerts in Pennsylvania, January 2021
101 weather alerts in January 2021, 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 2021. Tap one for its archive.
- Alerts
- 101
- Warnings
- 14
- Watches
- 7
- Advisories
- 24
- Busiest day
- January 20, 202117 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 |
|---|---|---|---|---|
| Jan 1, 2:36 AM EST | Ice Storm Warning | CTP | Somerset | 20 hr |
| Jan 1, 12:55 PM EST | Winter Weather Advisory | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 4 more | 5 hr |
| Jan 2, 2:41 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 35 hr |
| Jan 2, 2:55 PM EST | Winter Weather Advisory | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 37 hr |
| Jan 2, 3:16 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 32 hr |
| Jan 2, 3:35 PM EST | Winter Weather Advisory | PBZ | Clarion, Fayette, Forest, Jefferson, Venango, Westmoreland | 21 hr |
| Jan 3, 3:42 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 6 hr |
| Jan 3, 9:28 PM EST | Special Weather Statement | BGM | Bradford, Susquehanna, Wayne | 107 min |
| Jan 3, 10:03 PM EST | Winter Storm Warning | BGM | Bradford, Susquehanna, Wayne, Wyoming | 4 hr |
| Jan 4, 12:02 AM EST | Special Weather Statement | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 118 min |
| Jan 15, 2:59 AM EST | Winter Weather Advisory | CTP | Potter | 24 hr |
| Jan 15, 5:23 PM EST | Dense Fog Advisory | BGM | Pike, Wayne | 8 hr |
| Jan 16, 3:19 AM EST | Winter Weather Advisory | PBZ | Fayette, Westmoreland | 28 hr |
| Jan 16, 8:51 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver, Butler, Greene, Washington | 54 min |
| Jan 16, 10:07 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver, Washington | 53 min |
| Jan 16, 11:07 AM EST | Special Weather Statement | PBZ | Allegheny, Butler | 53 min |
| Jan 16, 12:31 PM EST | Special Weather Statement | CTP | Cambria, Somerset | 119 min |
| Jan 16, 1:53 PM EST | Winter Weather Advisory | CTP | Cambria, Somerset | 17 hr |
| Jan 16, 2:26 PM EST | Special Weather Statement | CTP | Bedford, Cambria | 64 min |
| Jan 16, 4:51 PM EST | Special Weather Statement | CLE | Crawford | 54 min |
| Jan 16, 6:18 PM EST | Special Weather Statement | CTP | Blair | 27 min |
| Jan 16, 8:51 PM EST | Special Weather Statement | PBZ | Jefferson | 39 min |
| Jan 16, 9:32 PM EST | Special Weather Statement | PBZ | Jefferson | 43 min |
| Jan 16, 9:43 PM EST | Special Weather Statement | CTP | Clearfield | 32 min |
| Jan 16, 10:13 PM EST | Special Weather Statement | CTP | Centre, Clearfield | 62 min |
| Jan 16, 10:16 PM EST | Special Weather Statement | CTP | Clinton | 59 min |
| Jan 16, 11:03 PM EST | Special Weather Statement | PBZ | Allegheny, Beaver, Lawrence, Westmoreland | 57 min |
| Jan 16, 11:15 PM EST | Special Weather Statement | CTP | Union | 30 min |
| Jan 16, 11:44 PM EST | Special Weather Statement | CTP | Centre | 46 min |
| Jan 17, 1:00 PM EST | Winter Weather Advisory | CLE | Erie | 21 hr |
| Jan 18, 8:47 AM EST | Lake Effect Snow Warning | CLE | Erie | 13 hr |
| Jan 19, 2:37 AM EST | Winter Weather Advisory | PBZ | Fayette, Westmoreland | 34 hr |
| Jan 19, 3:00 AM EST | Winter Weather Advisory | CTP | Cambria, McKean, Somerset, Warren | 34 hr |
| Jan 19, 4:06 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 28 hr |
| Jan 19, 9:21 AM EST | Special Weather Statement | CLE | Erie | 84 min |
| Jan 19, 2:28 PM EST | Lake Effect Snow Warning | CLE | Erie | 17 hr |
| Jan 20, 4:49 AM EST | Special Weather Statement | CTP | Clearfield | 56 min |
| Jan 20, 5:29 AM EST | Special Weather Statement | CTP | Bedford, Somerset | 61 min |
| Jan 20, 5:40 AM EST | Special Weather Statement | CTP | Centre, Mifflin | 50 min |
| Jan 20, 6:27 AM EST | Special Weather Statement | BGM | Bradford, Susquehanna | 63 min |
| Jan 20, 6:27 AM EST | Special Weather Statement | CTP | Bedford, Franklin, Fulton | 48 min |
| Jan 20, 6:54 AM EST | Special Weather Statement | CTP | Sullivan | 51 min |
| Jan 20, 7:39 AM EST | Special Weather Statement | BGM | Lackawanna, Luzerne, Wayne, Wyoming | 51 min |
| Jan 20, 8:17 AM EST | Special Weather Statement | CTP | Centre | 43 min |
| Jan 20, 8:56 AM EST | Special Weather Statement | PHI | Carbon, Monroe | 49 min |
| Jan 20, 9:37 AM EST | Special Weather Statement | CTP | Juniata | 38 min |
| Jan 20, 9:38 AM EST | Special Weather Statement | CTP | Centre | 37 min |
| Jan 20, 9:39 AM EST | Special Weather Statement | CTP | Centre | 36 min |
| Jan 20, 9:52 AM EST | Special Weather Statement | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 53 min |
| Jan 20, 10:18 AM EST | Special Weather Statement | CTP | Mifflin | 57 min |
| Jan 20, 10:42 AM EST | Special Weather Statement | PHI | Bucks, Delaware, Montgomery, Philadelphia | 63 min |
| Jan 20, 11:35 AM EST | Special Weather Statement | BGM | Bradford | 55 min |
| Jan 20, 11:47 AM EST | Special Weather Statement | BGM | Susquehanna | 58 min |
| Jan 22, 6:26 AM EST | Special Weather Statement | CLE | Crawford, Erie | 2 hr |
| Jan 22, 7:36 AM EST | Special Weather Statement | CLE | Crawford | 114 min |
| Jan 22, 9:00 AM EST | Special Weather Statement | PBZ | Venango | 60 min |
| Jan 22, 9:22 AM EST | Special Weather Statement | PBZ | Mercer | 53 min |
| Jan 22, 9:51 AM EST | Special Weather Statement | CTP | Elk, McKean | 54 min |
| Jan 22, 11:42 AM EST | Snow Squall Warning | CTP | Potter | 48 min |
| Jan 22, 11:54 AM EST | Special Weather Statement | CTP | Cameron | 66 min |
| Jan 22, 12:46 PM EST | Snow Squall Warning | CTP | Lycoming, Potter, Tioga | 44 min |
| Jan 22, 1:43 PM EST | Snow Squall Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 77 min |
| Jan 22, 1:48 PM EST | Special Weather Statement | CTP | Clinton | 57 min |
| Jan 22, 2:24 PM EST | Special Weather Statement | BGM | Bradford, Susquehanna | 36 min |
| Jan 22, 3:08 PM EST | Special Weather Statement | BGM | Lackawanna, Wayne, Wyoming | 52 min |
| Jan 22, 4:00 PM EST | Special Weather Statement | CTP | Sullivan | 30 min |
| Jan 22, 4:18 PM EST | Special Weather Statement | BGM | Lackawanna, Pike, Susquehanna, Wayne | 42 min |
| Jan 22, 5:05 PM EST | Special Weather Statement | PHI | Carbon, Monroe | 55 min |
| Jan 23, 12:27 AM EST | Special Weather Statement | CTP | Huntingdon | 78 min |
| Jan 23, 8:44 AM EST | Special Weather Statement | BGM | Susquehanna | 61 min |
| Jan 24, 3:43 AM EST | Winter Storm Watch | PBZ | Fayette, Westmoreland | 24 hr |
| Jan 24, 3:44 AM EST | Winter Storm Watch | CTP | Bedford, Somerset | 24 hr |
| Jan 24, 2:50 PM EST | Special Weather Statement | CLE | Crawford | 85 min |
| Jan 25, 3:29 AM EST | Winter Storm Warning | CTP | Bedford, Somerset | 33 hr |
| Jan 25, 3:29 AM EST | Winter Weather Advisory | CTP | Adams, Blair, Cambria, Cameron, Centre, Clearfield and 25 more | 43 hr |
| Jan 25, 3:47 AM EST | Winter Storm Warning | PBZ | Fayette, Westmoreland | 30 hr |
| Jan 25, 3:47 AM EST | Winter Weather Advisory | PBZ | Armstrong, Beaver, Butler, Clarion, Forest, Jefferson and 3 more | 30 hr |
| Jan 25, 3:52 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 33 hr |
| Jan 25, 3:08 PM EST | Winter Weather Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 34 hr |
| Jan 25, 3:19 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 38 hr |
| Jan 26, 8:46 AM EST | Mesoscale Discussion | SPC | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 15 more | 4 hr |
| Jan 26, 5:12 PM EST | Special Weather Statement | CTP | Centre, Clinton, Snyder, Union | 108 min |
| Jan 28, 4:09 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 30 hr |
| Jan 28, 1:12 PM EST | Winter Weather Advisory | CTP | Warren | 21 hr |
| Jan 28, 6:31 PM EST | Wind Chill Advisory | PHI | Carbon, Monroe | 16 hr |
| Jan 28, 8:03 PM EST | Special Weather Statement | CTP | Clearfield | 57 min |
| Jan 28, 9:43 PM EST | Special Weather Statement | CTP | Clinton | 62 min |
| Jan 29, 1:00 AM EST | Special Weather Statement | BGM | Susquehanna | 45 min |
| Jan 29, 3:14 PM EST | Winter Storm Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 25 hr |
| Jan 29, 8:54 PM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cumberland, Dauphin and 10 more | 19 hr |
| Jan 29, 9:33 PM EST | Special Weather Statement | CTP | Centre | 57 min |
| Jan 30, 3:42 AM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 5 more | 71 hr |
| Jan 30, 3:24 PM EST | Winter Storm Watch | CTP | Centre, Clearfield, Clinton, Lycoming, Tioga | 13 hr |
| Jan 30, 3:24 PM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 20 more | 13 hr |
| Jan 30, 3:34 PM EST | Winter Storm Watch | BGM | Bradford, Lackawanna, Pike, Susquehanna, Wayne | 37 hr |
| Jan 30, 3:34 PM EST | Winter Storm Warning | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 4 days |
| Jan 30, 3:44 PM EST | Winter Storm Watch | PHI | Carbon, Monroe | 6 hr |
| Jan 30, 3:44 PM EST | Winter Storm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 72 hr |
| Jan 31, 4:52 AM EST | Winter Storm Warning | CTP | Adams, Bedford, Blair, Cambria, Centre, Clinton and 21 more | 48 hr |
| Jan 31, 4:52 AM EST | Winter Weather Advisory | CTP | Cameron, Clearfield, Elk, Potter, Tioga | 48 hr |
| Jan 31, 4:42 PM EST | Winter Storm Warning | PBZ | Fayette, Westmoreland | 41 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 | 1 |
| Special Weather Statement | 55 |
| Winter | |
| Ice Storm Warning | 1 |
| Lake Effect Snow Warning | 2 |
| Snow Squall Warning | 3 |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 22 |
| Cold | |
| Wind Chill Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Centre County14
- Somerset County12
- Susquehanna County12
- Wayne County11
- Bedford County10
- Cambria County10
- Clinton County10
- Westmoreland County9
- Bradford County9
- Clearfield County9
- Erie County9
- Fayette County8
- Lackawanna County8
- Mifflin County8
- Crawford County8
- Jefferson County7
- Pike County7
- Wyoming County7
- Carbon County7
- Monroe County7
- Blair County7
- Fulton County7
- Huntingdon County7
- Juniata County7
- Lycoming County7
- Sullivan County7
- Tioga County7
- Union County7
- Bucks County6
- Montgomery County6
- Franklin County6
- Perry County6
- Potter County6
- Snyder County6
- Butler County5
- Luzerne County5
- Berks County5
- Lehigh County5
- Northampton County5
- Adams County5
27 more counties
- Cameron County5
- Columbia County5
- Cumberland County5
- Dauphin County5
- Elk County5
- Lancaster County5
- Lebanon County5
- Northumberland County5
- Warren County5
- York County5
- Allegheny County5
- Beaver County5
- Clarion County4
- Forest County4
- Lawrence County4
- Venango County4
- Chester County4
- McKean County4
- Montour County4
- Schuylkill County4
- Delaware County4
- Philadelphia County4
- Armstrong County3
- Mercer County3
- Washington County3
- Greene County2
- Indiana County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.