Alert archive / Pennsylvania / 2017
Weather alerts in Pennsylvania, January 2017
177 weather alerts in January 2017, 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 2017. Tap one for its archive.
- Alerts
- 177
- Warnings
- 30
- Watches
- 8
- Advisories
- 63
- Busiest day
- January 12, 201738 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, 3:06 PM EST | Freezing Rain Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 22 hr |
| Jan 1, 3:15 PM EST | Freezing Rain Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 23 hr |
| Jan 1, 3:40 PM EST | Freezing Rain Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 24 hr |
| Jan 1, 9:41 PM EST | Freezing Rain Advisory | PBZ | Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more | 8 hr |
| Jan 3, 11:37 AM EST | Lake Effect Snow Watch | CLE | Erie | 15 hr |
| Jan 3, 3:07 PM EST | Lake Effect Snow Advisory | CTP | Warren | 43 hr |
| Jan 4, 2:28 AM EST | Wind Advisory | CLE | Erie | 20 hr |
| Jan 4, 2:32 AM EST | Lake Effect Snow Advisory | CLE | Crawford, Erie | 3 days |
| Jan 4, 3:23 PM EST | Winter Weather Advisory | PBZ | Fayette, Greene, Westmoreland | 35 hr |
| Jan 4, 3:52 PM EST | Winter Weather Advisory | CTP | Adams, Lancaster, Somerset, York | 35 hr |
| Jan 5, 11:13 AM EST | Winter Weather Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 18 hr |
| Jan 5, 2:39 PM EST | Lake Effect Snow Warning | CLE | Erie | 41 hr |
| Jan 5, 4:12 PM EST | Special Weather Statement | PBZ | Fayette, Greene, Washington, Westmoreland | 3 hr |
| Jan 6, 4:35 AM EST | Special Weather Statement | CLE | Erie | 115 min |
| Jan 6, 1:35 PM EST | Wind Chill Advisory | PBZ | Fayette, Westmoreland | 56 hr |
| Jan 6, 2:33 PM EST | Special Weather Statement | CLE | Erie | 87 min |
| Jan 6, 3:49 PM EST | Special Weather Statement | CLE | Erie | 86 min |
| Jan 6, 4:42 PM EST | Winter Weather Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 25 hr |
| Jan 6, 5:14 PM EST | Special Weather Statement | CLE | Erie | 2 hr |
| Jan 7, 3:37 AM EST | Wind Chill Advisory | CTP | Cambria, Somerset | 31 hr |
| Jan 7, 4:01 AM EST | Lake Effect Snow Watch | CLE | Erie | 8 hr |
| Jan 7, 11:33 AM EST | Lake Effect Snow Advisory | CTP | McKean, Warren | 31 hr |
| Jan 7, 12:16 PM EST | Lake Effect Snow Warning | CLE | Erie | 28 hr |
| Jan 7, 12:16 PM EST | Lake Effect Snow Advisory | CLE | Crawford | 28 hr |
| Jan 7, 2:17 PM EST | Special Weather Statement | CLE | Erie | 88 min |
| Jan 7, 7:31 PM EST | Special Weather Statement | CLE | Erie | 119 min |
| Jan 7, 10:14 PM EST | Special Weather Statement | CLE | Erie | 2 hr |
| Jan 8, 1:21 PM EST | Special Weather Statement | CLE | Erie | 84 min |
| Jan 8, 1:36 PM EST | Special Weather Statement | PBZ | Armstrong, Butler, Lawrence | 39 min |
| Jan 8, 2:21 PM EST | Special Weather Statement | PBZ | Armstrong, Butler, Indiana, Lawrence | 39 min |
| Jan 8, 2:32 PM EST | Special Weather Statement | CTP | Centre, Montour, Northumberland, Snyder, Union | 58 min |
| Jan 8, 3:03 PM EST | Special Weather Statement | PBZ | Lawrence | 57 min |
| Jan 8, 5:54 PM EST | Special Weather Statement | CTP | Snyder | 51 min |
| Jan 9, 11:47 AM EST | Winter Weather Advisory | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more | 35 hr |
| Jan 9, 12:52 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 24 hr |
| Jan 9, 2:08 PM EST | Wind Advisory | CTP | McKean, Warren | 35 hr |
| Jan 9, 2:41 PM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 37 hr |
| Jan 9, 2:55 PM EST | Winter Weather Advisory | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more | 36 hr |
| Jan 9, 2:59 PM EST | Wind Advisory | CLE | Crawford, Erie | 33 hr |
| Jan 9, 3:32 PM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 36 hr |
| Jan 9, 6:49 PM EST | Freezing Rain Advisory | PBZ | Allegheny, Beaver, Washington, Westmoreland | 17 hr |
| Jan 10, 4:24 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver, Butler, Greene, Lawrence, Mercer and 1 more | 36 min |
| Jan 10, 4:45 PM EST | Wind Advisory | PBZ | Beaver, Butler, Forest, Lawrence, Mercer, Venango | 9 hr |
| Jan 10, 5:58 PM EST | High Wind Warning | CLE | Crawford, Erie | 10 hr |
| Jan 10, 6:13 PM EST | Mesoscale Discussion | SPC | Bradford, Cameron, Centre, Clearfield, Clinton, Elk and 7 more | 6 hr |
| Jan 10, 7:10 PM EST | Special Weather Statement | CTP | Bedford, Blair, Cameron, Centre, Clearfield, Clinton and 10 more | 35 min |
| Jan 10, 9:48 PM EST | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| Jan 11, 3:39 PM EST | Flood Watch | CLE | Crawford, Erie | 26 hr |
| Jan 12, 4:57 AM EST | Flood Watch | CTP | Cameron, Elk, McKean, Potter, Warren | 15 hr |
| Jan 12, 6:39 AM EST | Flash Flood Watch | PBZ | Beaver, Butler, Clarion, Forest, Lawrence, Mercer and 1 more | 10 hr |
| Jan 12, 7:33 AM EST | Flash Flood Warning | PBZ | Mercer, Venango | 3 hr |
| Jan 12, 8:05 AM EST | Areal Flood Advisory | CTP | McKean, Warren | 8 hr |
| Jan 12, 8:06 AM EST | Flash Flood Warning | PBZ | Lawrence | 3 hr |
| Jan 12, 8:34 AM EST | Areal Flood Warning | CLE | Crawford, Erie | 9 hr |
| Jan 12, 9:31 AM EST | Flash Flood Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 3 hr |
| Jan 12, 10:09 AM EST | River Flood Warning | CTP | Warren | 3 days |
| Jan 12, 10:16 AM EST | Special Weather Statement | CLE | Erie | 74 min |
| Jan 12, 10:27 AM EST | River Flood Advisory | PBZ | Allegheny | 3 days |
| Jan 12, 10:37 AM EST | Areal Flood Warning | PBZ | Forest, Mercer, Venango | 6 hr |
| Jan 12, 10:42 AM EST | Mesoscale Discussion | SPC | Beaver, Lawrence | 3 hr |
| Jan 12, 11:02 AM EST | Areal Flood Warning | PBZ | Lawrence | 5 hr |
| Jan 12, 12:06 PM EST | River Flood Warning | CLE | Crawford | 57 hr |
| Jan 12, 1:34 PM EST | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 41 min |
| Jan 12, 1:50 PM EST | Areal Flood Warning | PBZ | Lawrence | 115 min |
| Jan 12, 1:56 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 34 min |
| Jan 12, 2:14 PM EST | Severe Thunderstorm Warning | PBZ | Beaver | 46 min |
| Jan 12, 2:15 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Clarion, Lawrence, Mercer | 45 min |
| Jan 12, 2:22 PM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 10 more | 2 hr |
| Jan 12, 2:24 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Venango | 51 min |
| Jan 12, 2:26 PM EST | Special Weather Statement | CTP | Elk, McKean, Potter | 49 min |
| Jan 12, 2:40 PM EST | Special Weather Statement | PBZ | Armstrong, Beaver, Butler, Clarion, Jefferson | 80 min |
| Jan 12, 2:42 PM EST | Special Weather Statement | PBZ | Washington | 63 min |
| Jan 12, 3:03 PM EST | Areal Flood Warning | CTP | Warren | 9 hr |
| Jan 12, 3:20 PM EST | Special Weather Statement | PBZ | Allegheny, Armstrong, Butler, Indiana, Jefferson, Washington and 1 more | 70 min |
| Jan 12, 3:35 PM EST | Special Weather Statement | CTP | Cameron, Clearfield, Clinton, Tioga | 40 min |
| Jan 12, 3:42 PM EST | Special Weather Statement | PBZ | Greene | 63 min |
| Jan 12, 3:49 PM EST | Areal Flood Warning | CTP | McKean | 6 hr |
| Jan 12, 4:23 PM EST | Special Weather Statement | CTP | Blair, Centre, Clinton, Mifflin, Union | 52 min |
| Jan 12, 5:30 PM EST | Areal Flood Advisory | CLE | Crawford, Erie | 18 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Venango | 29 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Armstrong, Clarion | 33 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Armstrong, Clarion | 35 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Armstrong | 37 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Armstrong | 31 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Allegheny, Westmoreland | 44 hr |
| Jan 12, 5:38 PM EST | River Flood Warning | PBZ | Allegheny | 49 hr |
| Jan 12, 7:31 PM EST | Areal Flood Warning | PBZ | Venango | 6 hr |
| Jan 13, 3:19 AM EST | Freezing Rain Advisory | PBZ | Fayette, Greene, Westmoreland | 43 hr |
| Jan 13, 3:49 AM EST | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Cumberland, Franklin and 5 more | 44 hr |
| Jan 14, 2:37 AM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland | 16 hr |
| Jan 14, 3:25 AM EST | Winter Weather Advisory | PHI | Chester | 19 hr |
| Jan 15, 5:18 PM EST | River Flood Advisory | PBZ | Allegheny | 21 hr |
| Jan 16, 3:54 AM EST | Freezing Rain Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Columbia, Elk and 11 more | 30 hr |
| Jan 16, 4:04 AM EST | Freezing Rain Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 51 hr |
| Jan 16, 11:36 AM EST | Freezing Rain Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 43 hr |
| Jan 17, 8:08 PM EST | Dense Fog Advisory | CTP | Adams, Bedford, Blair, Cameron, Centre, Clearfield and 25 more | 8 hr |
| Jan 20, 3:43 AM EST | Freezing Rain Advisory | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 9 more | 5 hr |
| Jan 20, 9:10 PM EST | Dense Fog Advisory | CLE | Erie | 8 hr |
| Jan 20, 11:05 PM EST | Dense Fog Advisory | CTP | Adams, Bedford, Blair, Cameron, Centre, Clearfield and 25 more | 14 hr |
| Jan 21, 12:44 AM EST | Dense Fog Advisory | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 7 hr |
| Jan 21, 8:58 AM EST | Dense Fog Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 2 hr |
| Jan 21, 3:29 PM EST | Dense Fog Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 22 hr |
| Jan 21, 4:52 PM EST | Dense Fog Advisory | CTP | Adams, Bedford, Blair, Cameron, Centre, Clearfield and 24 more | 20 hr |
| Jan 21, 5:21 PM EST | Dense Fog Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 8 hr |
| Jan 22, 3:44 AM EST | High Wind Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 40 hr |
| Jan 22, 3:44 AM EST | Wind Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 38 hr |
| Jan 22, 6:31 AM EST | Dense Fog Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 6 hr |
| Jan 22, 1:51 PM EST | Wind Advisory | CTP | Adams, Dauphin, Lancaster, Lebanon, York | 26 hr |
| Jan 22, 1:58 PM EST | Winter Storm Watch | CTP | Lycoming, McKean, Potter, Sullivan, Tioga, Warren | 323 days |
| Jan 22, 3:18 PM EST | Winter Storm Watch | PHI | Carbon, Monroe | 12 hr |
| Jan 22, 3:41 PM EST | Winter Storm Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 12 hr |
| Jan 22, 8:58 PM EST | Dense Fog Advisory | CLE | Erie | 7 hr |
| Jan 23, 3:37 AM EST | Winter Weather Advisory | PHI | Carbon, Monroe | 38 hr |
| Jan 23, 3:41 AM EST | Winter Storm Warning | BGM | Bradford, Susquehanna, Wayne, Wyoming | 24 hr |
| Jan 23, 3:41 AM EST | Winter Weather Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 39 hr |
| Jan 23, 4:11 AM EST | Winter Storm Warning | CTP | Lycoming, Potter, Sullivan, Tioga | 30 hr |
| Jan 23, 4:11 AM EST | Winter Weather Advisory | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more | 30 hr |
| Jan 23, 4:28 PM EST | Areal Flood Advisory | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 8 hr |
| Jan 23, 5:19 PM EST | Special Weather Statement | PBZ | Fayette | 116 min |
| Jan 23, 5:44 PM EST | Wind Advisory | PHI | Delaware, Philadelphia | 115 min |
| Jan 24, 4:38 PM EST | Special Weather Statement | CLE | Erie | 52 min |
| Jan 24, 10:53 PM EST | Freezing Rain Advisory | CTP | Cambria, Somerset | 5 hr |
| Jan 26, 3:12 AM EST | Winter Weather Advisory | PBZ | Fayette, Westmoreland | 51 hr |
| Jan 26, 3:54 AM EST | Lake Effect Snow Advisory | CTP | Warren | 50 hr |
| Jan 26, 3:54 AM EST | Winter Weather Advisory | CTP | Cambria, Somerset | 50 hr |
| Jan 26, 10:49 AM EST | Wind Advisory | CTP | Adams, Bedford, Blair, Cumberland, Dauphin, Franklin and 8 more | 10 hr |
| Jan 26, 11:15 AM EST | Wind Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 7 hr |
| Jan 27, 9:56 AM EST | Special Weather Statement | CTP | Centre | 79 min |
| Jan 27, 11:33 AM EST | Special Weather Statement | PBZ | Allegheny | 42 min |
| Jan 27, 1:05 PM EST | Special Weather Statement | CTP | Huntingdon | 25 min |
| Jan 27, 1:15 PM EST | Special Weather Statement | CTP | Centre, Clearfield | 90 min |
| Jan 27, 9:28 PM EST | Special Weather Statement | CLE | Erie | 92 min |
| Jan 29, 6:54 AM EST | Special Weather Statement | PBZ | Fayette, Indiana, Westmoreland | 81 min |
| Jan 29, 6:59 AM EST | Special Weather Statement | CTP | Blair, Cambria | 31 min |
| Jan 29, 7:26 AM EST | Special Weather Statement | CTP | Somerset | 64 min |
| Jan 29, 7:41 AM EST | Special Weather Statement | CTP | Blair, Cambria, Mifflin, Snyder | 64 min |
| Jan 29, 8:52 AM EST | Special Weather Statement | CTP | Blair, Huntingdon, Juniata, Mifflin, Perry | 23 min |
| Jan 29, 9:12 AM EST | Special Weather Statement | CTP | Blair | 48 min |
| Jan 29, 9:50 AM EST | Special Weather Statement | CTP | Blair, Huntingdon, Mifflin | 55 min |
| Jan 29, 10:48 AM EST | Special Weather Statement | CTP | Huntingdon, Juniata, Mifflin | 57 min |
| Jan 29, 11:38 AM EST | Special Weather Statement | PBZ | Mercer, Venango | 82 min |
| Jan 29, 1:14 PM EST | Lake Effect Snow Advisory | CLE | Crawford, Erie | 24 hr |
| Jan 29, 6:16 PM EST | Special Weather Statement | BGM | Bradford | 59 min |
| Jan 30, 5:25 AM EST | Special Weather Statement | CLE | Erie | 80 min |
| Jan 30, 8:13 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver, Butler, Lawrence | 62 min |
| Jan 30, 9:11 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver | 94 min |
| Jan 30, 9:54 AM EST | Special Weather Statement | CTP | Adams, Cumberland, Dauphin, Perry | 51 min |
| Jan 30, 9:56 AM EST | Special Weather Statement | CTP | Huntingdon, Juniata, Mifflin | 64 min |
| Jan 30, 10:48 AM EST | Special Weather Statement | CTP | Cumberland, Franklin, Juniata, Mifflin, Perry | 27 min |
| Jan 30, 11:12 AM EST | Special Weather Statement | PBZ | Westmoreland | 78 min |
| Jan 30, 11:35 AM EST | Special Weather Statement | CTP | Somerset | 25 min |
| Jan 30, 11:42 AM EST | Special Weather Statement | PBZ | Armstrong, Butler | 78 min |
| Jan 30, 11:44 AM EST | Special Weather Statement | CTP | Adams, Cumberland, Dauphin, Lebanon, Northumberland, Perry and 2 more | 76 min |
| Jan 30, 11:49 AM EST | Special Weather Statement | CTP | Clearfield | 71 min |
| Jan 30, 12:00 PM EST | Special Weather Statement | PBZ | Clarion, Jefferson, Mercer, Venango | 2 hr |
| Jan 30, 12:06 PM EST | Special Weather Statement | PBZ | Indiana | 114 min |
| Jan 30, 12:10 PM EST | Special Weather Statement | CTP | Bedford, Somerset | 80 min |
| Jan 30, 12:49 PM EST | Special Weather Statement | CTP | Centre, Clearfield | 56 min |
| Jan 30, 12:56 PM EST | Special Weather Statement | CTP | Dauphin, Lebanon, Northumberland, York | 34 min |
| Jan 30, 1:27 PM EST | Special Weather Statement | CTP | Clinton | 63 min |
| Jan 30, 1:38 PM EST | Special Weather Statement | CTP | Blair | 67 min |
| Jan 30, 1:43 PM EST | Special Weather Statement | CTP | Lancaster | 47 min |
| Jan 30, 1:46 PM EST | Special Weather Statement | CTP | Blair | 59 min |
| Jan 30, 1:46 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more | 21 hr |
| Jan 30, 1:52 PM EST | Special Weather Statement | CTP | Centre | 53 min |
| Jan 30, 1:58 PM EST | Winter Weather Advisory | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more | 34 hr |
| Jan 30, 2:19 PM EST | Special Weather Statement | CTP | Mifflin, Montour, Union | 56 min |
| Jan 30, 2:40 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 21 hr |
| Jan 30, 2:47 PM EST | Special Weather Statement | CTP | Blair, Huntingdon | 58 min |
| Jan 30, 3:22 PM EST | Special Weather Statement | CTP | Juniata, Montour, Northumberland, Snyder, Union | 53 min |
| Jan 30, 3:36 PM EST | Special Weather Statement | CTP | Centre | 54 min |
| Jan 30, 4:02 PM EST | Special Weather Statement | PHI | Philadelphia | 43 min |
| Jan 30, 4:40 PM EST | Special Weather Statement | CTP | Mifflin | 65 min |
| Jan 30, 5:10 PM EST | Special Weather Statement | CTP | Cameron, Clearfield | 65 min |
| Jan 31, 5:06 AM EST | Special Weather Statement | CTP | Adams, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 1 more | 54 min |
| Jan 31, 5:53 AM EST | Special Weather Statement | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 52 min |
| Jan 31, 8:45 AM EST | Special Weather Statement | PBZ | Allegheny, Beaver | 60 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Erie County28
- Blair County20
- Centre County19
- Mifflin County18
- Clearfield County17
- Huntingdon County17
- McKean County17
- Armstrong County17
- Butler County17
- Lawrence County16
- Westmoreland County15
- Allegheny County15
- Beaver County15
- Adams County14
- Cameron County14
- Clinton County14
- Juniata County14
- Clarion County14
- Venango County14
- Warren County14
- Cumberland County13
- Elk County13
- Perry County13
- Potter County13
- Somerset County13
- York County13
- Mercer County13
- Cambria County12
- Lycoming County12
- Snyder County12
- Dauphin County11
- Franklin County11
- Lancaster County11
- Tioga County11
- Union County11
- Crawford County11
- Bedford County10
- Fulton County10
- Lebanon County10
- Northumberland County10
27 more counties
- Philadelphia County10
- Fayette County10
- Jefferson County10
- Montour County9
- Bucks County9
- Chester County9
- Delaware County9
- Montgomery County9
- Sullivan County8
- Carbon County8
- Monroe County8
- Wayne County8
- Wyoming County8
- Forest County8
- Washington County8
- Bradford County8
- Berks County7
- Lehigh County7
- Northampton County7
- Lackawanna County7
- Luzerne County7
- Pike County7
- Columbia County6
- Schuylkill County6
- Greene County6
- Susquehanna County6
- Indiana County5
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.