Alert archive / Pennsylvania / 2021
Weather alerts in Pennsylvania, March 2021
73 weather alerts in March 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 March 2021. Tap one for its archive.
- Alerts
- 73
- Warnings
- 15
- Watches
- 6
- Advisories
- 25
- Busiest day
- March 28, 202119 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 |
|---|---|---|---|---|
| Feb 28, 7:38 PM EST | Areal Flood Warning | PHI | Chester | 3 hr |
| Feb 28, 7:43 PM EST | River Flood Warning | PHI | Chester | 3 hr |
| Mar 1, 1:38 AM EST | Areal Flood Advisory | CTP | Bedford | 5 hr |
| Mar 1, 2:33 AM EST | Dense Fog Advisory | CTP | Adams, Bedford, Blair, Centre, Clinton, Cumberland and 14 more | 5 hr |
| Mar 1, 3:40 AM EST | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 23 hr |
| Mar 1, 5:27 AM EST | Areal Flood Advisory | PBZ | Fayette, Greene, Indiana, Washington, Westmoreland | 8 hr |
| Mar 1, 8:04 AM EST | River Flood Warning | CTP | Somerset | 6 hr |
| Mar 1, 12:16 PM EST | Wind Advisory | PBZ | Fayette, Westmoreland | 7 hr |
| Mar 1, 2:26 PM EST | Special Weather Statement | CLE | Crawford, Erie | 94 min |
| Mar 1, 2:40 PM EST | River Flood Warning | PBZ | Allegheny, Westmoreland | 10 hr |
| Mar 1, 3:44 PM EST | Special Weather Statement | CLE | Crawford | 76 min |
| Mar 1, 4:06 PM EST | Special Weather Statement | CTP | Elk, McKean, Warren | 54 min |
| Mar 1, 5:02 PM EST | Special Weather Statement | CTP | Cameron, Elk, Potter | 43 min |
| Mar 1, 5:43 PM EST | Special Weather Statement | CTP | Cameron | 32 min |
| Mar 1, 6:07 PM EST | Special Weather Statement | CTP | Clearfield | 23 min |
| Mar 1, 6:26 PM EST | Special Weather Statement | CTP | Centre | 34 min |
| Mar 1, 7:02 PM EST | Special Weather Statement | CTP | Somerset | 28 min |
| Mar 6, 6:48 AM EST | Special Weather Statement | PHI | Lehigh | 42 min |
| Mar 12, 9:24 AM EST | Wind Advisory | PHI | Carbon, Monroe, Northampton | 21 hr |
| Mar 12, 10:02 AM EST | Wind Advisory | BGM | Pike | 20 hr |
| Mar 13, 2:42 PM EST | Fire Weather Watch | CTP | Adams, Bedford, Columbia, Cumberland, Dauphin, Franklin and 12 more | 13 hr |
| Mar 13, 2:44 PM EST | Wind Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 28 hr |
| Mar 13, 2:56 PM EST | Fire Weather Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 12 hr |
| Mar 14, 4:19 AM EDT | Red Flag Warning | CTP | Adams, Bedford, Columbia, Cumberland, Dauphin, Franklin and 12 more | 18 hr |
| Mar 14, 4:22 AM EDT | Red Flag Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 37 hr |
| Mar 15, 2:36 PM EDT | Winter Weather Advisory | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 4 more | 20 hr |
| Mar 15, 2:41 PM EDT | Winter Weather Advisory | PBZ | Fayette, Forest, Jefferson, Westmoreland | 19 hr |
| Mar 15, 10:16 PM EDT | Winter Weather Advisory | CLE | Crawford, Erie | 8 hr |
| Mar 17, 3:24 PM EDT | Wind Advisory | CLE | Erie | 32 hr |
| Mar 18, 6:39 AM EDT | Dense Fog Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne | 3 hr |
| Mar 18, 7:23 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Washington and 1 more | 2 hr |
| Mar 24, 3:30 AM EDT | High Wind Watch | CLE | Crawford, Erie | 34 hr |
| Mar 24, 1:03 PM EDT | High Wind Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 24 hr |
| Mar 24, 1:45 PM EDT | High Wind Watch | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 8 more | 25 hr |
| Mar 24, 1:51 PM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 5 hr |
| Mar 24, 2:45 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Montgomery | 5 hr |
| Mar 24, 6:26 PM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 10 hr |
| Mar 24, 7:09 PM EDT | Dense Fog Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 14 hr |
| Mar 24, 8:06 PM EDT | River Flood Warning | PHI | Chester | 3 hr |
| Mar 24, 9:42 PM EDT | Areal Flood Warning | PHI | Bucks | 4 hr |
| Mar 25, 1:44 AM EDT | Dense Fog Advisory | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more | 7 hr |
| Mar 25, 4:08 AM EDT | High Wind Warning | CLE | Erie | 32 hr |
| Mar 25, 4:08 AM EDT | Wind Advisory | CLE | Crawford, Erie | 35 hr |
| Mar 25, 11:00 AM EDT | Wind Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 32 hr |
| Mar 25, 11:51 AM EDT | Wind Advisory | CTP | Adams, Cameron, Centre, Clearfield, Clinton, Columbia and 23 more | 30 hr |
| Mar 25, 1:12 PM EDT | High Wind Warning | PBZ | Beaver, Fayette, Lawrence, Mercer, Westmoreland | 27 hr |
| Mar 25, 1:12 PM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Butler, Clarion, Fayette, Forest and 5 more | 27 hr |
| Mar 25, 2:29 PM EDT | High Wind Warning | CTP | Bedford, Blair, Cambria, Somerset | 28 hr |
| Mar 25, 3:35 PM EDT | Wind Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 28 hr |
| Mar 25, 5:03 PM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Beaver, Butler, Lawrence, Westmoreland | 57 min |
| Mar 25, 5:29 PM EDT | Special Weather Statement | PBZ | Indiana | 31 min |
| Mar 25, 5:59 PM EDT | Special Weather Statement | PBZ | Armstrong, Indiana | 46 min |
| Mar 28, 2:59 PM EDT | Special Weather Statement | BGM | Bradford | 61 min |
| Mar 28, 3:04 PM EDT | Special Weather Statement | CTP | Bedford, Fulton, Huntingdon, Juniata, Lycoming, Mifflin and 2 more | 41 min |
| Mar 28, 3:52 PM EDT | Special Weather Statement | BGM | Bradford, Susquehanna, Wyoming | 53 min |
| Mar 28, 3:52 PM EDT | Special Weather Statement | CTP | Columbia, Cumberland, Franklin, Juniata, Montour, Northumberland and 3 more | 38 min |
| Mar 28, 4:26 PM EDT | Special Weather Statement | CTP | Adams, Cumberland, Dauphin, Lebanon, York | 49 min |
| Mar 28, 4:51 PM EDT | Special Weather Statement | BGM | Susquehanna | 54 min |
| Mar 28, 5:04 PM EDT | Special Weather Statement | PHI | Berks | 41 min |
| Mar 28, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | Bucks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Mar 28, 5:12 PM EDT | Special Weather Statement | CTP | York | 33 min |
| Mar 28, 5:13 PM EDT | Special Weather Statement | PHI | Carbon | 32 min |
| Mar 28, 5:41 PM EDT | Special Weather Statement | CTP | Lancaster | 34 min |
| Mar 28, 5:42 PM EDT | Special Weather Statement | BGM | Lackawanna, Pike, Wayne | 63 min |
| Mar 28, 5:45 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 30 min |
| Mar 28, 6:02 PM EDT | Special Weather Statement | PHI | Chester | 28 min |
| Mar 28, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 48 min |
| Mar 28, 6:15 PM EDT | Special Weather Statement | PHI | Montgomery | 30 min |
| Mar 28, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 47 min |
| Mar 28, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 43 min |
| Mar 28, 7:05 PM EDT | Mesoscale Discussion | SPC | Bucks, Delaware, Montgomery, Philadelphia | 115 min |
| Mar 31, 3:09 AM EDT | Winter Weather Advisory | CTP | Lycoming, Potter, Sullivan, Tioga | 29 hr |
| Mar 31, 4:02 AM EDT | Winter Weather Advisory | BGM | Bradford, Susquehanna | 30 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 | |
| Severe Thunderstorm Warning | 3 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 4 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Weather Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 3 |
| Wind Advisory | 11 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County14
- Chester County13
- Bucks County12
- Delaware County10
- Philadelphia County10
- Westmoreland County9
- Bedford County8
- Cumberland County8
- York County8
- Berks County8
- Adams County7
- Dauphin County7
- Franklin County7
- Fulton County7
- Huntingdon County7
- Juniata County7
- Lancaster County7
- Lebanon County7
- Perry County7
- Union County7
- Lehigh County7
- Centre County6
- Mifflin County6
- Northumberland County6
- Snyder County6
- Cameron County6
- Elk County6
- Potter County6
- Somerset County6
- Fayette County6
- Erie County6
- Northampton County6
- Clinton County5
- Clearfield County5
- Columbia County5
- McKean County5
- Montour County5
- Crawford County5
- Allegheny County5
- Carbon County5
27 more counties
- Armstrong County5
- Blair County4
- Schuylkill County4
- Cambria County4
- Lycoming County4
- Tioga County4
- Washington County4
- Warren County4
- Monroe County4
- Pike County4
- Beaver County4
- Butler County4
- Lawrence County4
- Bradford County4
- Susquehanna County4
- Sullivan County3
- Greene County3
- Indiana County3
- Forest County3
- Jefferson County3
- Lackawanna County3
- Wayne County3
- Luzerne County2
- Clarion County2
- Mercer County2
- Venango County2
- Wyoming County2
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.