Alert archive / Pennsylvania / 2021
Weather alerts in Pennsylvania, November 2021
59 weather alerts in November 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 November 2021. Tap one for its archive.
- Alerts
- 59
- Warnings
- 5
- Watches
- 5
- Advisories
- 18
- Busiest day
- November 12, 202113 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, 4:23 AM EDT | Freeze Watch | CTP | Adams, Clinton, Columbia, Cumberland, Dauphin, Franklin and 14 more | 22 hr |
| Nov 1, 2:25 PM EDT | Freeze Watch | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 13 hr |
| Nov 2, 2:47 AM EDT | Freeze Warning | CTP | Adams, Clinton, Columbia, Cumberland, Dauphin, Franklin and 14 more | 30 hr |
| Nov 2, 3:30 AM EDT | Frost Advisory | PHI | Delaware, Philadelphia | 30 hr |
| Nov 2, 3:30 AM EDT | Freeze Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 30 hr |
| Nov 2, 2:23 PM EDT | Winter Weather Advisory | CTP | McKean, Warren | 19 hr |
| Nov 2, 2:34 PM EDT | Winter Weather Advisory | CLE | Erie | 18 hr |
| Nov 3, 1:52 PM EDT | Frost Advisory | PHI | Delaware, Philadelphia | 19 hr |
| Nov 10, 2:50 PM EST | Wind Advisory | CLE | Erie | 34 hr |
| Nov 12, 1:09 AM EST | Special Weather Statement | CTP | Blair, Cambria, Cameron, Clearfield, Elk, McKean | 81 min |
| Nov 12, 3:17 AM EST | Special Weather Statement | CTP | Cumberland, Franklin | 43 min |
| Nov 12, 4:25 AM EST | Special Weather Statement | CTP | Snyder | 35 min |
| Nov 12, 4:49 AM EST | Special Weather Statement | CTP | Northumberland | 26 min |
| Nov 12, 5:10 AM EST | Special Weather Statement | CTP | Columbia, Montour | 35 min |
| Nov 12, 6:04 AM EST | Special Weather Statement | BGM | Susquehanna, Wyoming | 41 min |
| Nov 12, 6:40 AM EST | Special Weather Statement | PHI | Berks | 80 min |
| Nov 12, 6:49 AM EST | Special Weather Statement | BGM | Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 56 min |
| Nov 12, 7:16 AM EST | Tornado Warning | BGM | Susquehanna | 29 min |
| Nov 12, 7:34 AM EST | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 2 hr |
| Nov 12, 7:44 AM EST | Areal Flood Advisory | BGM | Bradford | 3 hr |
| Nov 12, 8:05 AM EST | Special Weather Statement | BGM | Pike, Wayne | 55 min |
| Nov 12, 9:16 AM EST | Special Weather Statement | PHI | Bucks | 44 min |
| Nov 13, 2:55 AM EST | Wind Advisory | PHI | Bucks, Philadelphia | 14 hr |
| Nov 13, 3:15 PM EST | Winter Weather Advisory | CLE | Erie | 12 hr |
| Nov 15, 7:58 AM EST | Special Weather Statement | CTP | Clearfield | 47 min |
| Nov 15, 8:28 AM EST | Special Weather Statement | CTP | Mifflin | 47 min |
| Nov 15, 4:47 PM EST | Winter Weather Advisory | CTP | McKean, Warren | 11 hr |
| Nov 15, 8:49 PM EST | Special Weather Statement | CTP | Tioga | 56 min |
| Nov 18, 3:07 AM EST | Winter Storm Watch | CLE | Crawford, Erie | 10 hr |
| Nov 18, 3:07 AM EST | Winter Weather Advisory | CLE | Crawford, Erie | 30 hr |
| Nov 18, 3:29 AM EST | Winter Weather Advisory | CTP | McKean, Warren | 31 hr |
| Nov 22, 4:54 AM EST | Winter Weather Advisory | CTP | McKean, Warren | 33 hr |
| Nov 22, 6:26 AM EST | Special Weather Statement | CTP | Blair, Cambria, Centre, Columbia, Huntingdon, Juniata and 7 more | 79 min |
| Nov 25, 3:41 AM EST | Winter Storm Watch | CLE | Erie | 10 hr |
| Nov 25, 1:14 PM EST | Wind Advisory | PHI | Carbon, Monroe | 35 hr |
| Nov 25, 1:34 PM EST | Lake Effect Snow Warning | CLE | Erie | 38 hr |
| Nov 25, 1:34 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 38 hr |
| Nov 25, 2:53 PM EST | Winter Weather Advisory | CTP | McKean, Warren | 35 hr |
| Nov 26, 12:48 PM EST | Special Weather Statement | CLE | Erie | 87 min |
| Nov 26, 2:14 PM EST | Special Weather Statement | CLE | Erie | 91 min |
| Nov 26, 2:35 PM EST | Special Weather Statement | CTP | Cameron, Centre, Clinton, Elk, Warren | 85 min |
| Nov 26, 4:14 PM EST | Special Weather Statement | CTP | Cameron, Centre, Elk, Warren | 61 min |
| Nov 26, 6:23 PM EST | Special Weather Statement | CTP | Centre | 37 min |
| Nov 27, 2:26 PM EST | Winter Weather Advisory | CTP | McKean, Warren | 38 hr |
| Nov 27, 2:33 PM EST | Winter Storm Watch | CLE | Erie | 14 hr |
| Nov 27, 2:33 PM EST | Winter Weather Advisory | CLE | Crawford, Erie | 40 hr |
| Nov 28, 4:10 AM EST | Lake Effect Snow Warning | CLE | Erie | 24 hr |
| Nov 28, 1:37 PM EST | Special Weather Statement | CLE | Erie | 113 min |
| Nov 28, 5:32 PM EST | Special Weather Statement | CLE | Erie | 58 min |
| Nov 28, 6:02 PM EST | Mesoscale Discussion | SPC | Erie, McKean, Warren | 5 hr |
| Nov 28, 6:07 PM EST | Special Weather Statement | CTP | Blair, Cambria, Centre | 38 min |
| Nov 28, 6:33 PM EST | Special Weather Statement | CLE | Erie | 87 min |
| Nov 28, 6:49 PM EST | Special Weather Statement | CTP | Blair, Cambria, Centre | 41 min |
| Nov 28, 7:32 PM EST | Special Weather Statement | CTP | Huntingdon, Juniata, Mifflin | 43 min |
| Nov 28, 8:15 PM EST | Special Weather Statement | CTP | Juniata, Mifflin, Perry | 30 min |
| Nov 28, 8:48 PM EST | Special Weather Statement | CTP | Dauphin, Juniata, Perry | 27 min |
| Nov 28, 9:15 PM EST | Special Weather Statement | CTP | Dauphin, Lebanon | 30 min |
| Nov 28, 11:43 PM EST | Special Weather Statement | CTP | Blair, Cambria | 62 min |
| Nov 29, 2:01 AM EST | Special Weather Statement | CTP | Clearfield | 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 | |
| Tornado Warning | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 30 |
| Flooding | |
| Areal Flood Advisory | 2 |
| Winter | |
| Lake Effect Snow Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 11 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Erie County17
- Warren County9
- McKean County8
- Juniata County6
- Mifflin County6
- Centre County6
- Blair County5
- Cambria County5
- Columbia County4
- Dauphin County4
- Huntingdon County4
- Montour County4
- Northumberland County4
- Perry County4
- Snyder County4
- Berks County4
- Bucks County4
- Carbon County4
- Monroe County4
- Crawford County4
- Clinton County3
- Cumberland County3
- Franklin County3
- Lebanon County3
- Lycoming County3
- Union County3
- Lehigh County3
- Northampton County3
- Philadelphia County3
- Cameron County3
- Clearfield County3
- Elk County3
- Susquehanna County3
- Adams County2
- Fulton County2
- Lancaster County2
- Schuylkill County2
- York County2
- Chester County2
- Montgomery 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.