Alert archive / Pennsylvania / 2020
Weather alerts in Pennsylvania, November 2020
85 weather alerts in November 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 November 2020. Tap one for its archive.
- Alerts
- 85
- Warnings
- 42
- Watches
- 5
- Advisories
- 22
- Busiest day
- November 15, 202031 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 |
|---|---|---|---|---|
| Nov 1, 3:10 AM EST | Wind Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 36 hr |
| Nov 1, 3:35 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 28 hr |
| Nov 1, 3:53 AM EST | Wind Advisory | CLE | Erie | 24 hr |
| Nov 1, 4:00 AM EST | Winter Weather Advisory | PBZ | Clarion, Fayette, Forest, Mercer, Venango, Westmoreland | 27 hr |
| Nov 1, 4:10 AM EST | Winter Weather Advisory | CTP | Cambria, McKean, Somerset, Warren | 31 hr |
| Nov 1, 3:08 PM EST | Wind Advisory | BGM | Lackawanna, Luzerne, Pike, Wayne | 28 hr |
| Nov 1, 3:21 PM EST | Special Weather Statement | BGM | Bradford | 54 min |
| Nov 1, 4:13 PM EST | Special Weather Statement | BGM | Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 62 min |
| Nov 1, 5:06 PM EST | Special Weather Statement | BGM | Lackawanna, Pike, Wayne | 54 min |
| Nov 1, 9:59 PM EST | Wind Advisory | CTP | Adams, Bedford, Blair, Centre, Clinton, Columbia and 17 more | 14 hr |
| Nov 1, 11:33 PM EST | Lake Effect Snow Warning | CLE | Crawford | 8 hr |
| Nov 2, 4:10 AM EST | Wind Advisory | CLE | Erie | 21 hr |
| Nov 11, 6:34 PM EST | Areal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 3 hr |
| Nov 14, 3:26 AM EST | Wind Advisory | CLE | Crawford, Erie | 40 hr |
| Nov 14, 1:10 PM EST | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 42 hr |
| Nov 14, 2:09 PM EST | Coastal Flood Advisory | PHI | Bucks | 26 hr |
| Nov 14, 2:11 PM EST | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 32 hr |
| Nov 15, 3:31 AM EST | High Wind Warning | CLE | Erie | 19 hr |
| Nov 15, 11:33 AM EST | Mesoscale Discussion | SPC | Crawford, Erie, Lawrence, Mercer, Venango | 57 min |
| Nov 15, 11:51 AM EST | Severe Thunderstorm Watch | SPC | Beaver, Butler, Crawford, Erie, Lawrence, Mercer and 1 more | 3 hr |
| Nov 15, 1:16 PM EST | Mesoscale Discussion | SPC | Allegheny, Armstrong, Clarion, Elk, Forest, Indiana and 5 more | 89 min |
| Nov 15, 1:32 PM EST | Severe Thunderstorm Warning | CLE | Crawford, Erie | 88 min |
| Nov 15, 1:57 PM EST | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Cameron, Clarion, Clearfield, Elk and 8 more | 4 hr |
| Nov 15, 2:01 PM EST | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence, Mercer, Venango | 44 min |
| Nov 15, 2:06 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Greene, Washington | 39 min |
| Nov 15, 2:36 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 2 more | 39 min |
| Nov 15, 2:40 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Clarion, Forest, Lawrence and 2 more | 50 min |
| Nov 15, 2:49 PM EST | Severe Thunderstorm Warning | CTP | Warren | 59 min |
| Nov 15, 3:02 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Fayette, Indiana, Washington and 1 more | 43 min |
| Nov 15, 3:13 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Forest, Indiana, Jefferson, Venango | 47 min |
| Nov 15, 3:16 PM EST | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington | 44 min |
| Nov 15, 3:30 PM EST | Severe Thunderstorm Warning | CTP | Clearfield, Elk, McKean | 63 min |
| Nov 15, 3:33 PM EST | Severe Thunderstorm Warning | PBZ | Fayette, Indiana, Westmoreland | 27 min |
| Nov 15, 3:33 PM EST | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 23 more | 2 hr |
| Nov 15, 3:39 PM EST | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 24 min |
| Nov 15, 3:46 PM EST | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 48 min |
| Nov 15, 3:46 PM EST | Severe Thunderstorm Warning | PBZ | Fayette | 44 min |
| Nov 15, 4:23 PM EST | Severe Thunderstorm Warning | CTP | Bedford | 34 min |
| Nov 15, 4:55 PM EST | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 80 min |
| Nov 15, 5:32 PM EST | Special Weather Statement | BGM | Bradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 58 min |
| Nov 15, 5:35 PM EST | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Dauphin, Delaware and 9 more | 5 hr |
| Nov 15, 5:51 PM EST | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 84 min |
| Nov 15, 5:57 PM EST | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 78 min |
| Nov 15, 6:25 PM EST | Lakeshore Flood Warning | CLE | Erie | 6 hr |
| Nov 15, 6:29 PM EST | Special Weather Statement | BGM | Lackawanna, Pike, Wayne | 76 min |
| Nov 15, 6:44 PM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Monroe, Montgomery and 1 more | 76 min |
| Nov 15, 6:52 PM EST | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 7 more | 113 min |
| Nov 15, 6:53 PM EST | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 67 min |
| Nov 15, 7:11 PM EST | Severe Thunderstorm Warning | BGM | Pike | 41 min |
| Nov 15, 7:31 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 74 min |
| Nov 15, 7:50 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 70 min |
| Nov 15, 8:01 PM EST | Special Weather Statement | PBZ | Mercer, Venango | 29 min |
| Nov 15, 10:55 PM EST | Wind Advisory | CLE | Erie | 5 hr |
| Nov 17, 12:38 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 17 hr |
| Nov 17, 1:00 PM EST | Winter Weather Advisory | CTP | Warren | 18 hr |
| Nov 18, 8:03 AM EST | Special Weather Statement | BGM | Susquehanna | 117 min |
| Nov 18, 10:07 AM EST | Special Weather Statement | BGM | Susquehanna | 113 min |
| Nov 29, 3:18 PM EST | Winter Storm Watch | CLE | Crawford, Erie | 12 hr |
| Nov 29, 3:18 PM EST | Winter Weather Advisory | CLE | Erie | 63 hr |
| Nov 29, 7:35 PM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 56 hr |
| Nov 29, 8:10 PM EST | Winter Weather Advisory | CTP | Cambria, Clearfield, Elk, McKean, Somerset, Warren | 59 hr |
| Nov 30, 2:51 AM EST | Winter Storm Warning | CLE | Crawford, Erie | 52 hr |
| Nov 30, 3:18 AM EST | Winter Storm Warning | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 4 more | 48 hr |
| Nov 30, 12:15 PM EST | Areal Flood Advisory | PHI | Chester, Delaware | 3 hr |
| Nov 30, 12:26 PM EST | Mesoscale Discussion | SPC | Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Nov 30, 12:41 PM EST | Special Weather Statement | PHI | Chester, Montgomery | 49 min |
| Nov 30, 1:07 PM EST | Tornado Watch | SPC | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Nov 30, 1:08 PM EST | Winter Storm Warning | CTP | Warren | 42 hr |
| Nov 30, 2:17 PM EST | Areal Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 9 hr |
| Nov 30, 2:18 PM EST | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 2 hr |
| Nov 30, 2:41 PM EST | Severe Thunderstorm Warning | PHI | Chester, Delaware | 49 min |
| Nov 30, 2:48 PM EST | Areal Flood Warning | PHI | Chester, Delaware, Montgomery | 8 hr |
| Nov 30, 3:01 PM EST | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 44 min |
| Nov 30, 3:02 PM EST | Mesoscale Discussion | SPC | Bucks, Delaware, Montgomery, Philadelphia | 88 min |
| Nov 30, 3:26 PM EST | Areal Flood Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Northampton | 4 hr |
| Nov 30, 3:43 PM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Monroe, Montgomery, Northampton and 1 more | 47 min |
| Nov 30, 3:51 PM EST | River Flood Warning | PHI | Chester | 14 hr |
| Nov 30, 3:53 PM EST | Areal Flood Warning | PHI | Monroe, Northampton | 16 hr |
| Nov 30, 3:53 PM EST | Tornado Warning | PHI | Bucks, Montgomery | 13 min |
| Nov 30, 4:17 PM EST | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 10 hr |
| Nov 30, 4:27 PM EST | Areal Flood Advisory | BGM | Pike | 2 hr |
| Nov 30, 4:37 PM EST | Mesoscale Discussion | SPC | Bucks, Philadelphia | 53 min |
| Nov 30, 5:30 PM EST | River Flood Warning | PHI | Chester, Delaware | 16 hr |
| Nov 30, 5:33 PM EST | River Flood Warning | PHI | Montgomery | 10 hr |
| Nov 30, 5:35 PM EST | River Flood Warning | PHI | Delaware | 4 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 | 26 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 5 |
| River Flood Warning | 4 |
| Areal Flood Advisory | 3 |
| Winter | |
| Lake Effect Snow Warning | 1 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 8 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 9 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Coastal Flood Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County19
- Bucks County18
- Delaware County18
- Chester County15
- Philadelphia County15
- Erie County14
- Venango County10
- Berks County9
- Lehigh County9
- Monroe County9
- Northampton County9
- Crawford County9
- Fayette County9
- Mercer County9
- Westmoreland County9
- Armstrong County9
- Butler County9
- Clarion County8
- Forest County8
- Warren County8
- Washington County8
- Pike County7
- York County7
- Allegheny County7
- Beaver County7
- Jefferson County7
- Lawrence County7
- Carbon County6
- McKean County6
- Lackawanna County6
- Wayne County6
- Lancaster County6
- Indiana County6
- Susquehanna County5
- Dauphin County5
- Lebanon County5
- Greene County5
- Elk County5
- Cambria County4
- Somerset County4
27 more counties
- Luzerne County4
- Adams County4
- Cumberland County4
- Schuylkill County4
- Clearfield County4
- Wyoming County3
- Bedford County3
- Columbia County3
- Franklin County3
- Montour County3
- Northumberland County3
- Perry County3
- Snyder County3
- Bradford County2
- Blair County2
- Centre County2
- Clinton County2
- Fulton County2
- Huntingdon County2
- Juniata County2
- Lycoming County2
- Mifflin County2
- Union County2
- Cameron County2
- Potter County2
- Sullivan 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. Warning verification from the Mesonet's Cow. Rebuilt daily.