Alert archive / Pennsylvania / 2020
Weather alerts in Pennsylvania, March 2020
139 weather alerts in March 2020, 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 March 2020. Tap one for its archive.
- Alerts
- 139
- Warnings
- 46
- Watches
- 4
- Advisories
- 22
- Busiest day
- March 28, 202049 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 |
|---|---|---|---|---|
| Mar 3, 1:22 PM EST | Mesoscale Discussion | SPC | Allegheny, Bedford, Cambria, Fayette, Fulton, Greene and 3 more | 113 min |
| Mar 3, 4:27 PM EST | Mesoscale Discussion | SPC | Adams, Armstrong, Bedford, Blair, Cambria, Cameron and 20 more | 2 hr |
| Mar 3, 6:02 PM EST | Special Weather Statement | CTP | Clinton | 28 min |
| Mar 3, 6:17 PM EST | Special Weather Statement | CTP | Centre, Clinton, Lycoming | 43 min |
| Mar 3, 6:20 PM EST | Special Weather Statement | CTP | Blair, Huntingdon | 40 min |
| Mar 3, 6:47 PM EST | Special Weather Statement | CTP | Juniata, Mifflin, Perry, Snyder, Union | 43 min |
| Mar 3, 6:50 PM EST | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Columbia, Dauphin and 17 more | 2 hr |
| Mar 3, 7:23 PM EST | Special Weather Statement | BGM | Bradford | 37 min |
| Mar 3, 8:01 PM EST | Special Weather Statement | BGM | Susquehanna | 59 min |
| Mar 3, 8:09 PM EST | Special Weather Statement | CTP | Lancaster, Lebanon, Schuylkill, York | 36 min |
| Mar 3, 8:09 PM EST | Special Weather Statement | PHI | Berks, Carbon, Chester, Delaware, Lehigh, Monroe and 2 more | 51 min |
| Mar 3, 8:39 PM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more | 51 min |
| Mar 3, 8:45 PM EST | Special Weather Statement | BGM | Lackawanna, Wayne | 60 min |
| Mar 3, 8:52 PM EST | Special Weather Statement | PBZ | Armstrong, Clarion, Fayette, Indiana, Westmoreland | 23 min |
| Mar 3, 8:57 PM EST | Special Weather Statement | CTP | Cambria, Somerset | 63 min |
| Mar 3, 9:09 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 51 min |
| Mar 3, 9:20 PM EST | Special Weather Statement | PBZ | Fayette, Forest, Indiana, Jefferson, Westmoreland | 25 min |
| Mar 3, 9:41 PM EST | Special Weather Statement | BGM | Pike | 34 min |
| Mar 3, 9:42 PM EST | Special Weather Statement | CTP | Bedford, Blair, Centre, Fulton, Huntingdon, Mifflin | 33 min |
| Mar 3, 10:14 PM EST | Special Weather Statement | CTP | Centre, Cumberland, Franklin, Fulton, Juniata, Mifflin and 2 more | 46 min |
| Mar 3, 10:52 PM EST | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 21 more | 113 min |
| Mar 3, 10:57 PM EST | Special Weather Statement | CTP | Adams, Cumberland, York | 48 min |
| Mar 14, 2:12 PM EDT | Winter Weather Advisory | PBZ | Fayette | 21 hr |
| Mar 14, 5:17 PM EDT | Winter Weather Advisory | CTP | Somerset | 15 hr |
| Mar 15, 3:10 AM EDT | Special Weather Statement | CTP | Blair, Cambria | 20 min |
| Mar 20, 2:32 AM EDT | Dense Fog Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 6 hr |
| Mar 20, 3:00 AM EDT | Dense Fog Advisory | CTP | Dauphin, Lancaster, Lebanon, York | 5 hr |
| Mar 20, 7:14 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland | 3 hr |
| Mar 20, 12:21 PM EDT | Special Weather Statement | PBZ | Armstrong, Fayette, Greene, Indiana, Jefferson, Westmoreland | 54 min |
| Mar 20, 12:40 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more | 2 hr |
| Mar 20, 12:54 PM EDT | Special Weather Statement | PBZ | Lawrence, Mercer, Venango | 51 min |
| Mar 20, 1:01 PM EDT | Areal Flood Warning | PBZ | Beaver | 3 hr |
| Mar 20, 1:06 PM EDT | Areal Flood Warning | PBZ | Venango | 4 hr |
| Mar 20, 1:25 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 38 min |
| Mar 20, 1:29 PM EDT | Special Weather Statement | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Venango | 46 min |
| Mar 20, 1:42 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence | 33 min |
| Mar 20, 1:48 PM EDT | Special Weather Statement | CTP | Elk, McKean | 27 min |
| Mar 20, 1:49 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 26 min |
| Mar 20, 2:02 PM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Beaver | 43 min |
| Mar 20, 2:03 PM EDT | Areal Flood Warning | PBZ | Beaver, Butler, Lawrence | 3 hr |
| Mar 20, 2:15 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean | 45 min |
| Mar 20, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Indiana, Jefferson | 45 min |
| Mar 20, 2:20 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 40 min |
| Mar 20, 2:33 PM EDT | Areal Flood Warning | PBZ | Clarion, Jefferson, Venango | 3 hr |
| Mar 20, 2:49 PM EDT | Special Weather Statement | CTP | Cameron, Tioga | 41 min |
| Mar 20, 2:57 PM EDT | Special Weather Statement | PBZ | Indiana | 33 min |
| Mar 20, 3:01 PM EDT | Special Weather Statement | CTP | Centre, Clinton | 44 min |
| Mar 20, 3:29 PM EDT | Special Weather Statement | BGM | Bradford, Susquehanna | 61 min |
| Mar 20, 3:32 PM EDT | Areal Flood Warning | PBZ | Allegheny, Butler | 3 hr |
| Mar 20, 3:36 PM EDT | Special Weather Statement | CTP | Lycoming | 39 min |
| Mar 20, 3:43 PM EDT | Special Weather Statement | CTP | Centre, Union | 47 min |
| Mar 20, 3:49 PM EDT | Special Weather Statement | CTP | Mifflin | 41 min |
| Mar 20, 4:07 PM EDT | Areal Flood Warning | PBZ | Beaver | 16 hr |
| Mar 20, 4:08 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Northumberland, Snyder, Sullivan, Union | 67 min |
| Mar 20, 4:18 PM EDT | Special Weather Statement | BGM | Susquehanna, Wayne | 57 min |
| Mar 20, 4:26 PM EDT | Special Weather Statement | PBZ | Westmoreland | 49 min |
| Mar 20, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 28 min |
| Mar 20, 4:36 PM EDT | Special Weather Statement | BGM | Lackawanna, Luzerne, Pike, Wyoming | 54 min |
| Mar 20, 5:34 PM EDT | Special Weather Statement | BGM | Pike, Wayne | 41 min |
| Mar 21, 12:43 AM EDT | River Flood Advisory | PBZ | Allegheny | 19 hr |
| Mar 22, 3:16 AM EDT | Winter Weather Advisory | PHI | Carbon, Monroe | 40 hr |
| Mar 22, 4:14 AM EDT | Winter Weather Advisory | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 42 hr |
| Mar 23, 1:33 PM EDT | Special Weather Statement | CTP | Centre, Clinton, Lycoming, Mifflin, Union | 72 min |
| Mar 23, 2:50 PM EDT | Special Weather Statement | CTP | Columbia, Lycoming, Mifflin, Montour, Snyder, Sullivan and 1 more | 85 min |
| Mar 27, 11:01 AM EDT | River Flood Advisory | PBZ | Allegheny | 4 days |
| Mar 27, 12:07 PM EDT | Flash Flood Watch | CLE | Crawford, Erie | 41 hr |
| Mar 28, 9:36 AM EDT | Special Weather Statement | CTP | Mifflin | 24 min |
| Mar 28, 10:22 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 38 min |
| Mar 28, 10:32 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Indiana and 4 more | 88 min |
| Mar 28, 11:00 AM EDT | Special Weather Statement | PBZ | Armstrong | 45 min |
| Mar 28, 11:42 AM EDT | Special Weather Statement | PBZ | Butler, Lawrence | 48 min |
| Mar 28, 11:51 AM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 3 hr |
| Mar 28, 12:06 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 24 min |
| Mar 28, 12:30 PM EDT | Special Weather Statement | PBZ | Armstrong | 45 min |
| Mar 28, 1:13 PM EDT | Special Weather Statement | CTP | Blair, Cambria | 62 min |
| Mar 28, 1:13 PM EDT | Special Weather Statement | PBZ | Mercer | 47 min |
| Mar 28, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 6 hr |
| Mar 28, 1:43 PM EDT | Special Weather Statement | PBZ | Armstrong | 32 min |
| Mar 28, 1:49 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 26 min |
| Mar 28, 2:15 PM EDT | Special Weather Statement | PBZ | Butler | 45 min |
| Mar 28, 2:25 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer | 35 min |
| Mar 28, 2:42 PM EDT | Special Weather Statement | CTP | Blair, Cambria | 33 min |
| Mar 28, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 35 min |
| Mar 28, 3:06 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Jefferson | 24 min |
| Mar 28, 3:17 PM EDT | Special Weather Statement | PBZ | Butler, Lawrence | 28 min |
| Mar 28, 3:18 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 42 min |
| Mar 28, 3:19 PM EDT | Special Weather Statement | CTP | Blair, Cambria | 41 min |
| Mar 28, 3:26 PM EDT | Areal Flood Advisory | PBZ | Armstrong, Butler, Clarion | 3 hr |
| Mar 28, 3:31 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler | 29 min |
| Mar 28, 3:40 PM EDT | Tornado Warning | PBZ | Allegheny, Beaver, Washington | 35 min |
| Mar 28, 3:55 PM EDT | Wind Advisory | CLE | Crawford, Erie | 28 hr |
| Mar 28, 3:56 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 49 min |
| Mar 28, 4:03 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Butler, Greene, Lawrence, Washington and 1 more | 87 min |
| Mar 28, 4:10 PM EDT | Special Weather Statement | CTP | Cambria | 35 min |
| Mar 28, 4:10 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Fayette, Washington, Westmoreland | 9 hr |
| Mar 28, 4:13 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Washington, Westmoreland | 47 min |
| Mar 28, 4:14 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 46 min |
| Mar 28, 4:19 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Westmoreland | 3 hr |
| Mar 28, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Indiana, Jefferson | 50 min |
| Mar 28, 4:35 PM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana, Jefferson, Westmoreland | 5 hr |
| Mar 28, 4:42 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 48 min |
| Mar 28, 4:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 51 min |
| Mar 28, 5:02 PM EDT | Areal Flood Advisory | CTP | Clearfield | 3 hr |
| Mar 28, 5:04 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 41 min |
| Mar 28, 5:12 PM EDT | Special Weather Statement | CTP | Clearfield | 33 min |
| Mar 28, 5:20 PM EDT | Special Weather Statement | CTP | Somerset | 25 min |
| Mar 28, 5:23 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington | 3 hr |
| Mar 28, 5:30 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 30 min |
| Mar 28, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 37 min |
| Mar 28, 5:39 PM EDT | Areal Flood Advisory | CTP | Bedford, Cambria, Somerset | 51 min |
| Mar 28, 5:51 PM EDT | Mesoscale Discussion | SPC | Bedford, Blair, Cambria, Franklin, Fulton, Huntingdon and 1 more | 84 min |
| Mar 28, 6:00 PM EDT | Special Weather Statement | CTP | Somerset | 30 min |
| Mar 28, 6:21 PM EDT | Areal Flood Advisory | CTP | Blair, Centre, Huntingdon | 3 hr |
| Mar 28, 6:29 PM EDT | Areal Flood Advisory | CTP | Bedford, Cambria, Somerset | 2 hr |
| Mar 28, 7:09 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Westmoreland | 3 hr |
| Mar 28, 9:13 PM EDT | Areal Flood Warning | PBZ | Armstrong, Indiana, Jefferson, Westmoreland | 6 hr |
| Mar 28, 9:24 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Mar 28, 9:58 PM EDT | Areal Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Westmoreland | 5 hr |
| Mar 28, 10:00 PM EDT | Flash Flood Watch | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon | 6 hr |
| Mar 28, 10:33 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 6 hr |
| Mar 28, 10:43 PM EDT | Areal Flood Advisory | CTP | Cambria, Somerset | 2 hr |
| Mar 28, 10:58 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 35 min |
| Mar 29, 12:32 AM EDT | Areal Flood Warning | PBZ | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 8 hr |
| Mar 29, 3:05 AM EDT | Areal Flood Advisory | CLE | Crawford | 4 hr |
| Mar 29, 3:58 AM EDT | Areal Flood Advisory | PBZ | Mercer | 2 hr |
| Mar 29, 6:41 AM EDT | Areal Flood Advisory | CLE | Crawford | 4 hr |
| Mar 29, 7:54 AM EDT | Special Weather Statement | BGM | Lackawanna, Luzerne, Wyoming | 51 min |
| Mar 29, 10:58 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Butler, Clarion, Elk, Forest and 5 more | 2 hr |
| Mar 29, 12:05 PM EDT | Severe Thunderstorm Watch | SPC | Armstrong, Beaver, Butler, Cameron, Clarion, Clearfield and 12 more | 4 hr |
| Mar 29, 1:18 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 25 min |
| Mar 29, 1:58 PM EDT | Special Weather Statement | CTP | McKean | 47 min |
| Mar 29, 1:58 PM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 7 hr |
| Mar 29, 2:21 PM EDT | Mesoscale Discussion | SPC | McKean, Potter | 84 min |
| Mar 29, 2:32 PM EDT | Special Weather Statement | CTP | Elk | 28 min |
| Mar 29, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 49 min |
| Mar 29, 3:35 PM EDT | Special Weather Statement | CTP | McKean | 40 min |
| Mar 30, 12:39 AM EDT | Dense Fog Advisory | CTP | Centre, Clinton, Columbia, Franklin, Fulton, Huntingdon and 8 more | 7 hr |
| Mar 30, 2:42 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 33 min |
| Mar 30, 4:31 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 44 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 | 29 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 57 |
| Flooding | |
| Areal Flood Warning | 10 |
| Flash Flood Warning | 5 |
| River Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 11 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Weather Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Armstrong County29
- Butler County29
- Westmoreland County25
- Allegheny County24
- Beaver County22
- Washington County18
- Clarion County18
- Lawrence County17
- Jefferson County16
- Fayette County15
- Indiana County15
- Cambria County13
- Venango County13
- Greene County12
- Somerset County11
- Blair County11
- Mercer County11
- Centre County10
- Elk County9
- Mifflin County9
- Huntingdon County8
- Union County8
- Delaware County8
- Forest County8
- McKean County8
- Snyder County7
- Chester County7
- Montgomery County7
- Bedford County6
- Fulton County6
- Cameron County6
- Clearfield County6
- Clinton County6
- Lycoming County6
- Berks County6
- Bucks County6
- Lehigh County6
- Northampton County6
- Philadelphia County6
- Crawford County6
27 more counties
- Juniata County5
- Carbon County5
- Columbia County5
- Lackawanna County5
- Luzerne County5
- Monroe County5
- Montour County5
- Pike County5
- Sullivan County5
- York County5
- Cumberland County4
- Dauphin County4
- Franklin County4
- Perry County4
- Lancaster County4
- Lebanon County4
- Northumberland County4
- Wyoming County4
- Susquehanna County4
- Wayne County4
- Erie County4
- Adams County3
- Schuylkill County3
- Warren County3
- Potter County3
- Bradford County2
- Tioga County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.