Alert archive / Pennsylvania / 2018
Weather alerts in Pennsylvania, April 2018
134 weather alerts in April 2018, 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 April 2018. Tap one for its archive.
- Alerts
- 134
- Warnings
- 38
- Watches
- 17
- Advisories
- 32
- Busiest day
- April 16, 201828 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 |
|---|---|---|---|---|
| Apr 1, 3:16 AM EDT | Winter Storm Watch | PBZ | Fayette, Westmoreland | 10 hr |
| Apr 1, 3:37 AM EDT | Winter Weather Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 30 hr |
| Apr 1, 4:08 AM EDT | Winter Weather Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 33 hr |
| Apr 1, 4:17 AM EDT | Winter Storm Watch | CTP | Bedford, Cambria, Fulton, Somerset | 10 hr |
| Apr 1, 4:17 AM EDT | Winter Weather Advisory | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 20 more | 29 hr |
| Apr 1, 1:32 PM EDT | Winter Storm Warning | PBZ | Fayette, Westmoreland | 17 hr |
| Apr 1, 1:32 PM EDT | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Butler, Clarion, Fayette, Greene and 3 more | 17 hr |
| Apr 1, 2:32 PM EDT | Winter Storm Warning | CTP | Somerset | 17 hr |
| Apr 2, 3:47 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 20 more | 6 hr |
| Apr 2, 8:40 PM EDT | River Flood Advisory | PBZ | Allegheny | 4 days |
| Apr 3, 7:10 AM EDT | Flash Flood Watch | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 19 hr |
| Apr 3, 12:36 PM EDT | Areal Flood Warning | PBZ | Fayette, Greene | 6 hr |
| Apr 3, 1:58 PM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 30 hr |
| Apr 3, 2:00 PM EDT | Special Weather Statement | PHI | Carbon | 2 hr |
| Apr 3, 2:26 PM EDT | Areal Flood Advisory | PBZ | Beaver, Washington | 3 hr |
| Apr 3, 3:08 PM EDT | Areal Flood Advisory | CTP | Somerset | 6 hr |
| Apr 3, 3:13 PM EDT | High Wind Warning | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 31 hr |
| Apr 3, 3:13 PM EDT | Wind Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 12 hr |
| Apr 3, 3:25 PM EDT | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 12 hr |
| Apr 3, 3:32 PM EDT | Wind Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 28 hr |
| Apr 3, 4:15 PM EDT | Special Weather Statement | PHI | Carbon | 105 min |
| Apr 3, 6:38 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 13 more | 2 hr |
| Apr 3, 7:07 PM EDT | Severe Thunderstorm Watch | SPC | Greene, Washington | 6 hr |
| Apr 3, 7:57 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington | 48 min |
| Apr 3, 7:58 PM EDT | Areal Flood Advisory | PBZ | Beaver, Greene, Washington | 3 hr |
| Apr 3, 8:09 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Greene, Washington | 26 min |
| Apr 3, 8:17 PM EDT | Areal Flood Advisory | PBZ | Beaver, Lawrence | 11 hr |
| Apr 3, 8:20 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 4 more | 11 hr |
| Apr 3, 8:29 PM EDT | Special Weather Statement | PBZ | Allegheny | 46 min |
| Apr 3, 8:33 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Washington, Westmoreland | 27 min |
| Apr 3, 8:58 PM EDT | Special Weather Statement | PBZ | Fayette, Westmoreland | 47 min |
| Apr 3, 9:10 PM EDT | Special Weather Statement | CTP | Blair, Cambria | 65 min |
| Apr 3, 9:13 PM EDT | Special Weather Statement | CTP | Bedford, Somerset | 62 min |
| Apr 4, 12:01 AM EDT | Dense Fog Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 10 hr |
| Apr 4, 3:36 AM EDT | High Wind Warning | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 16 hr |
| Apr 4, 3:39 AM EDT | High Wind Warning | CLE | Erie | 12 hr |
| Apr 4, 3:39 AM EDT | Wind Advisory | CLE | Crawford, Erie | 16 hr |
| Apr 4, 3:44 AM EDT | High Wind Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 16 hr |
| Apr 4, 12:29 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 31 min |
| Apr 4, 12:33 PM EDT | Special Weather Statement | CTP | Elk, McKean, Potter, Warren | 57 min |
| Apr 4, 12:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 51 min |
| Apr 4, 1:37 PM EDT | Special Weather Statement | CTP | Cameron, Clearfield, Elk, McKean, Potter, Warren | 53 min |
| Apr 4, 1:56 PM EDT | Wind Advisory | CTP | Cambria, Somerset | 12 hr |
| Apr 5, 12:02 AM EDT | Special Weather Statement | CTP | Cameron, Clinton, Elk, Lycoming | 58 min |
| Apr 5, 12:23 AM EDT | Special Weather Statement | CTP | Centre, Clearfield | 52 min |
| Apr 7, 12:44 AM EDT | Special Weather Statement | PBZ | Beaver, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more | 61 min |
| Apr 12, 7:25 AM EDT | Red Flag Warning | CTP | Bedford, Franklin, Fulton | 13 hr |
| Apr 12, 8:44 AM EDT | Red Flag Warning | PBZ | Fayette, Greene | 11 hr |
| Apr 12, 7:49 PM EDT | Fire Weather Watch | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 14 hr |
| Apr 13, 9:30 AM EDT | Red Flag Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 11 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Fayette, Washington, Westmoreland | 24 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Allegheny, Washington, Westmoreland | 24 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Allegheny | 47 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Clarion, Forest, Jefferson | 47 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Indiana, Westmoreland | 47 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Fayette | 24 hr |
| Apr 13, 10:53 AM EDT | River Flood Watch | PBZ | Allegheny | 47 hr |
| Apr 13, 3:37 PM EDT | Winter Weather Advisory | BGM | Wayne | 62 hr |
| Apr 14, 2:41 PM EDT | Flash Flood Watch | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 37 hr |
| Apr 14, 6:46 PM EDT | Special Weather Statement | CLE | Erie | 119 min |
| Apr 14, 9:52 PM EDT | Winter Weather Advisory | CLE | Erie | 8 hr |
| Apr 15, 6:08 AM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 39 hr |
| Apr 15, 3:41 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 20 hr |
| Apr 15, 3:43 PM EDT | Flash Flood Watch | BGM | Lackawanna, Luzerne, Pike, Wayne | 22 hr |
| Apr 15, 9:36 PM EDT | River Flood Advisory | PBZ | Allegheny | 5 days |
| Apr 15, 10:10 PM EDT | Areal Flood Warning | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 18 hr |
| Apr 16, 12:32 AM EDT | Winter Weather Advisory | PHI | Carbon, Monroe | 8 hr |
| Apr 16, 1:44 AM EDT | Flash Flood Watch | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more | 10 hr |
| Apr 16, 4:27 AM EDT | Special Weather Statement | CTP | York | 33 min |
| Apr 16, 4:46 AM EDT | Special Weather Statement | CTP | Lancaster | 29 min |
| Apr 16, 5:34 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 4 hr |
| Apr 16, 5:52 AM EDT | Areal Flood Advisory | PHI | Bucks, Delaware, Montgomery, Philadelphia | 7 hr |
| Apr 16, 6:30 AM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 4 hr |
| Apr 16, 6:48 AM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more | 4 hr |
| Apr 16, 7:04 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Apr 16, 7:26 AM EDT | Special Weather Statement | PHI | Bucks, Philadelphia | 34 min |
| Apr 16, 7:45 AM EDT | River Flood Warning | PHI | Delaware | 4 hr |
| Apr 16, 8:44 AM EDT | Areal Flood Warning | PHI | Philadelphia | 2 hr |
| Apr 16, 9:08 AM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne | 3 hr |
| Apr 16, 9:26 AM EDT | Areal Flood Warning | PHI | Bucks | 4 hr |
| Apr 16, 10:45 AM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Apr 16, 10:52 AM EDT | River Flood Warning | PBZ | Fayette, Greene | 22 hr |
| Apr 16, 10:52 AM EDT | River Flood Warning | PBZ | Fayette, Greene | 19 hr |
| Apr 16, 10:52 AM EDT | River Flood Warning | PBZ | Fayette, Washington, Westmoreland | 30 hr |
| Apr 16, 10:52 AM EDT | River Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 35 hr |
| Apr 16, 11:41 AM EDT | River Flood Warning | PHI | Bucks | 12 hr |
| Apr 16, 12:04 PM EDT | Special Weather Statement | PHI | Chester | 26 min |
| Apr 16, 1:31 PM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 4 hr |
| Apr 16, 1:45 PM EDT | Special Weather Statement | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 8 more | 45 min |
| Apr 16, 2:21 PM EDT | River Flood Warning | CTP | Perry | 6 hr |
| Apr 16, 2:27 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 5 hr |
| Apr 16, 2:45 PM EDT | Coastal Flood Warning | PHI | Bucks, Delaware, Philadelphia | 3 hr |
| Apr 17, 8:37 AM EDT | River Flood Warning | CTP | Cumberland | 10 hr |
| Apr 17, 1:07 PM EDT | Freeze Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more | 19 hr |
| Apr 17, 2:36 PM EDT | Freeze Warning | PHI | Berks, Bucks, Chester, Montgomery | 17 hr |
| Apr 17, 3:52 PM EDT | Special Weather Statement | CTP | Cambria, Centre, Clearfield, Clinton, Elk, Mifflin | 83 min |
| Apr 17, 5:12 PM EDT | Special Weather Statement | CTP | Centre, Clearfield, Clinton | 63 min |
| Apr 17, 5:45 PM EDT | Special Weather Statement | CTP | Columbia, Lycoming, Sullivan | 60 min |
| Apr 17, 6:02 PM EDT | Special Weather Statement | CTP | Bedford, Blair, Cumberland, Dauphin, Franklin, Fulton and 9 more | 58 min |
| Apr 18, 2:51 PM EDT | Winter Weather Advisory | CTP | McKean, Potter, Tioga, Warren | 13 hr |
| Apr 19, 2:22 PM EDT | Freeze Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more | 18 hr |
| Apr 19, 3:04 PM EDT | Freeze Warning | PHI | Berks, Chester, Montgomery | 17 hr |
| Apr 20, 4:27 AM EDT | Freeze Watch | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 10 more | 10 hr |
| Apr 20, 2:38 PM EDT | Freeze Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 10 more | 17 hr |
| Apr 20, 3:35 PM EDT | Frost Advisory | PHI | Bucks, Chester, Montgomery | 16 hr |
| Apr 20, 3:35 PM EDT | Freeze Warning | PHI | Berks, Bucks, Chester, Montgomery | 16 hr |
| Apr 27, 6:44 PM EDT | Special Weather Statement | PBZ | Beaver | 46 min |
| Apr 27, 6:45 PM EDT | Special Weather Statement | PBZ | Lawrence, Mercer | 45 min |
| Apr 27, 6:54 PM EDT | Special Weather Statement | CLE | Crawford, Erie | 96 min |
| Apr 27, 7:03 PM EDT | Special Weather Statement | PBZ | Armstrong, Clarion, Jefferson | 42 min |
| Apr 27, 7:14 PM EDT | Special Weather Statement | PBZ | Mercer | 46 min |
| Apr 27, 8:11 PM EDT | Special Weather Statement | CTP | Blair, Centre | 64 min |
| Apr 27, 8:20 PM EDT | Special Weather Statement | CTP | Huntingdon, Mifflin | 25 min |
| Apr 27, 8:26 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 34 min |
| Apr 27, 8:26 PM EDT | Special Weather Statement | PBZ | Westmoreland | 34 min |
| Apr 27, 8:52 PM EDT | Special Weather Statement | CTP | Centre, Clinton | 38 min |
| Apr 27, 9:02 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 58 min |
| Apr 27, 9:43 PM EDT | Special Weather Statement | CTP | Lycoming, Union | 47 min |
| Apr 27, 10:05 PM EDT | Special Weather Statement | CTP | Franklin, Fulton, Huntingdon, Mifflin | 55 min |
| Apr 27, 11:38 PM EDT | Special Weather Statement | CTP | Adams, Cumberland, York | 52 min |
| Apr 28, 5:16 AM EDT | Dense Fog Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 4 hr |
| Apr 28, 5:18 AM EDT | Dense Fog Advisory | CTP | Lancaster, Lebanon, York | 4 hr |
| Apr 28, 9:03 AM EDT | Dense Fog Advisory | CTP | Lancaster, Lebanon, York | 117 min |
| Apr 28, 3:11 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Lancaster, Lebanon and 7 more | 2 hr |
| Apr 28, 4:03 PM EDT | Special Weather Statement | CTP | Adams, Lancaster, Lebanon, Schuylkill, York | 27 min |
| Apr 28, 4:08 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 37 min |
| Apr 28, 4:40 PM EDT | Special Weather Statement | PHI | Berks, Lehigh, Northampton | 50 min |
| Apr 28, 4:56 PM EDT | Special Weather Statement | CTP | Lancaster | 34 min |
| Apr 28, 5:15 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 30 min |
| Apr 28, 5:22 PM EDT | Special Weather Statement | PHI | Chester, Montgomery | 23 min |
| Apr 28, 5:52 PM EDT | Special Weather Statement | PHI | Montgomery | 23 min |
| Apr 28, 6:09 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Montgomery | 36 min |
| Apr 28, 6:21 PM EDT | Special Weather Statement | PHI | Bucks | 24 min |
| Apr 28, 6:26 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Philadelphia | 49 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 6 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 44 |
| Flooding | |
| Areal Flood Warning | 7 |
| Flash Flood Warning | 1 |
| River Flood Warning | 8 |
| Flash Flood Watch | 5 |
| River Flood Watch | 7 |
| Areal Flood Advisory | 10 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 4 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bucks County22
- Montgomery County21
- Chester County20
- Fayette County19
- Westmoreland County19
- Allegheny County19
- Washington County19
- Philadelphia County18
- Delaware County17
- Lancaster County16
- York County16
- Greene County16
- Lebanon County15
- Berks County14
- Cumberland County13
- Franklin County13
- Lehigh County12
- Adams County12
- Northampton County11
- Centre County11
- Dauphin County11
- Huntingdon County11
- Carbon County10
- Fulton County10
- Somerset County10
- Clearfield County10
- Mifflin County10
- Perry County10
- Beaver County10
- Bedford County9
- Cambria County9
- Clinton County9
- Monroe County8
- Blair County8
- Schuylkill County8
- Union County8
- Juniata County7
- Northumberland County7
- Snyder County7
- Elk County7
27 more counties
- Pike County6
- Wayne County6
- Lycoming County6
- Montour County6
- Armstrong County6
- Clarion County6
- Jefferson County6
- Lawrence County6
- McKean County6
- Potter County6
- Warren County6
- Lackawanna County5
- Luzerne County5
- Columbia County5
- Butler County5
- Mercer County5
- Cameron County5
- Erie County5
- Sullivan County4
- Tioga County4
- Wyoming County3
- Forest County3
- Venango County3
- Indiana County3
- Bradford County2
- Susquehanna County2
- Crawford County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.