Alert archive / Pennsylvania / 2024
Weather alerts in Pennsylvania, September 2024
97 weather alerts in September 2024, 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 September 2024. Tap one for its archive.
- Alerts
- 97
- Warnings
- 27
- Watches
- 0
- Advisories
- 22
- Busiest day
- September 22, 202440 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 |
|---|---|---|---|---|
| Aug 31, 10:17 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Washington, Westmoreland | 118 min |
| Aug 31, 10:35 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Beaver, Butler | 115 min |
| Aug 31, 11:36 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Westmoreland | 114 min |
| Sep 2, 4:27 AM EDT | Frost Advisory | CTP | Elk, McKean, Potter | 29 hr |
| Sep 4, 7:07 AM EDT | Special Weather Statement | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 16 more | 83 min |
| Sep 5, 4:46 AM EDT | Special Weather Statement | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 21 more | 4 hr |
| Sep 6, 3:53 AM EDT | Beach Hazards Statement | CLE | Erie | 48 hr |
| Sep 6, 3:18 PM EDT | Mesoscale Discussion | SPC | Beaver, Butler, Clarion, Crawford, Erie, Forest and 4 more | 117 min |
| Sep 6, 3:29 PM EDT | Special Weather Statement | PBZ | Mercer | 46 min |
| Sep 6, 3:51 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 39 min |
| Sep 6, 4:34 PM EDT | Special Weather Statement | PBZ | Venango | 41 min |
| Sep 6, 4:56 PM EDT | Special Weather Statement | CTP | Warren | 34 min |
| Sep 6, 5:24 PM EDT | Special Weather Statement | PBZ | Clarion | 36 min |
| Sep 6, 5:43 PM EDT | Special Weather Statement | PBZ | Venango | 32 min |
| Sep 6, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 49 min |
| Sep 6, 6:33 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 42 min |
| Sep 6, 6:38 PM EDT | Special Weather Statement | PBZ | Venango | 52 min |
| Sep 6, 7:09 PM EDT | Special Weather Statement | CTP | Elk | 36 min |
| Sep 6, 7:13 PM EDT | Special Weather Statement | PBZ | Beaver | 32 min |
| Sep 6, 7:16 PM EDT | Special Weather Statement | CLE | Warren | 44 min |
| Sep 6, 7:22 PM EDT | Special Weather Statement | CTP | Warren | 53 min |
| Sep 6, 8:22 PM EDT | Special Weather Statement | CTP | McKean | 23 min |
| Sep 8, 8:12 AM EDT | Beach Hazards Statement | CLE | Erie | 38 hr |
| Sep 9, 8:13 PM EDT | Special Weather Statement | CTP | Tioga | 32 min |
| Sep 9, 8:26 PM EDT | Special Weather Statement | BGM | Bradford | 34 min |
| Sep 9, 8:53 PM EDT | Special Weather Statement | CTP | Sullivan | 37 min |
| Sep 12, 4:15 AM EDT | Dense Fog Advisory | PHI | Bucks, Chester, Montgomery | 6 hr |
| Sep 18, 4:45 AM EDT | Coastal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 6 days |
| Sep 21, 12:39 PM EDT | Special Weather Statement | PBZ | Washington | 36 min |
| Sep 21, 1:22 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington | 38 min |
| Sep 21, 2:10 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 50 min |
| Sep 21, 2:37 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Bedford, Blair, Cambria, Cameron and 22 more | 2 hr |
| Sep 21, 2:49 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 41 min |
| Sep 21, 3:16 PM EDT | Special Weather Statement | CTP | Potter | 14 min |
| Sep 21, 3:24 PM EDT | Special Weather Statement | PBZ | Greene | 36 min |
| Sep 21, 3:26 PM EDT | Special Weather Statement | CTP | Bedford | 34 min |
| Sep 21, 3:29 PM EDT | Special Weather Statement | CTP | Potter | 31 min |
| Sep 21, 3:47 PM EDT | Special Weather Statement | CTP | Somerset | 28 min |
| Sep 21, 3:53 PM EDT | Areal Flood Advisory | CTP | Potter | 86 min |
| Sep 21, 3:57 PM EDT | Special Weather Statement | CTP | Potter | 33 min |
| Sep 21, 4:28 PM EDT | Special Weather Statement | CTP | Fulton | 32 min |
| Sep 21, 4:44 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton | 33 min |
| Sep 21, 4:58 PM EDT | Special Weather Statement | CTP | Huntingdon | 32 min |
| Sep 21, 5:46 PM EDT | Special Weather Statement | PBZ | Westmoreland | 29 min |
| Sep 21, 6:23 PM EDT | Special Weather Statement | CTP | Potter | 37 min |
| Sep 21, 6:32 PM EDT | Areal Flood Advisory | CTP | Potter, Tioga | 118 min |
| Sep 21, 6:49 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 41 min |
| Sep 21, 7:02 PM EDT | Flash Flood Warning | CTP | Potter, Tioga | 3 hr |
| Sep 21, 7:15 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 45 min |
| Sep 21, 7:17 PM EDT | Special Weather Statement | CTP | Potter | 28 min |
| Sep 21, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 52 min |
| Sep 21, 7:55 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 50 min |
| Sep 21, 7:55 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 50 min |
| Sep 21, 8:00 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, McKean, Potter | 45 min |
| Sep 21, 8:10 PM EDT | Special Weather Statement | CTP | Warren | 35 min |
| Sep 21, 8:26 PM EDT | Special Weather Statement | PBZ | Forest | 34 min |
| Sep 21, 8:29 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 24 min |
| Sep 21, 8:40 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 50 min |
| Sep 21, 8:56 PM EDT | Special Weather Statement | CTP | Clinton | 34 min |
| Sep 21, 8:59 PM EDT | Special Weather Statement | CTP | Cameron | 31 min |
| Sep 21, 9:14 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 46 min |
| Sep 21, 9:17 PM EDT | Special Weather Statement | CTP | Cameron | 28 min |
| Sep 21, 9:26 PM EDT | Special Weather Statement | CTP | Clinton | 34 min |
| Sep 21, 9:39 PM EDT | Special Weather Statement | CTP | Elk | 36 min |
| Sep 21, 9:44 PM EDT | Special Weather Statement | CTP | Cameron | 31 min |
| Sep 21, 9:49 PM EDT | Areal Flood Advisory | CTP | Dauphin | 2 hr |
| Sep 21, 9:58 PM EDT | Special Weather Statement | CTP | Clinton | 32 min |
| Sep 21, 10:00 PM EDT | Flash Flood Warning | CTP | Dauphin | 110 min |
| Sep 21, 10:08 PM EDT | Special Weather Statement | CTP | Northumberland | 37 min |
| Sep 21, 10:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 45 min |
| Sep 21, 10:21 PM EDT | Areal Flood Advisory | CTP | Montour, Northumberland, Union | 2 hr |
| Sep 21, 10:37 PM EDT | Flash Flood Warning | CTP | Dauphin | 113 min |
| Sep 21, 10:44 PM EDT | Flash Flood Warning | CTP | Northumberland, Union | 2 hr |
| Sep 21, 10:52 PM EDT | Areal Flood Advisory | CTP | Dauphin, York | 2 hr |
| Sep 21, 10:53 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, York | 52 min |
| Sep 21, 10:58 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Northumberland, Schuylkill, Snyder | 32 min |
| Sep 21, 11:11 PM EDT | Areal Flood Advisory | CTP | Northumberland, Snyder, Union | 2 hr |
| Sep 21, 11:21 PM EDT | Special Weather Statement | CTP | Lebanon | 24 min |
| Sep 21, 11:28 PM EDT | Special Weather Statement | CTP | Dauphin, Juniata, Lebanon, Perry | 62 min |
| Sep 21, 11:40 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 50 min |
| Sep 21, 11:50 PM EDT | Areal Flood Warning | CTP | Dauphin | 115 min |
| Sep 21, 11:59 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 28 min |
| Sep 22, 12:11 AM EDT | Areal Flood Advisory | CTP | Dauphin, Northumberland | 94 min |
| Sep 22, 12:21 AM EDT | Special Weather Statement | CTP | Adams, Cumberland, York | 54 min |
| Sep 22, 12:36 AM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, York | 91 min |
| Sep 22, 12:39 AM EDT | Areal Flood Advisory | CTP | Lancaster | 81 min |
| Sep 22, 12:46 AM EDT | Special Weather Statement | CTP | Cumberland | 29 min |
| Sep 22, 1:08 AM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 22 min |
| Sep 22, 1:18 AM EDT | Areal Flood Advisory | CTP | Adams, York | 89 min |
| Sep 22, 1:32 AM EDT | Special Weather Statement | CTP | Adams | 28 min |
| Sep 22, 2:35 AM EDT | Dense Fog Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more | 6 hr |
| Sep 22, 2:43 AM EDT | Dense Fog Advisory | PBZ | Armstrong, Butler, Clarion, Fayette, Forest, Greene and 6 more | 7 hr |
| Sep 22, 5:14 AM EDT | Dense Fog Advisory | CLE | Crawford, Erie | 4 hr |
| Sep 23, 7:27 PM EDT | Dense Fog Advisory | CTP | Schuylkill | 13 hr |
| Sep 26, 1:33 PM EDT | Wind Advisory | PBZ | Fayette, Westmoreland | 31 hr |
| Sep 26, 3:31 PM EDT | Beach Hazards Statement | CLE | Erie | 44 hr |
| Sep 27, 5:07 AM EDT | Dense Fog Advisory | PHI | Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia | 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 | 22 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 43 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 4 |
| Areal Flood Advisory | 13 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| Beach Hazards Statement | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Potter County20
- Dauphin County13
- Tioga County10
- Cameron County9
- Clinton County9
- Elk County8
- Northumberland County8
- York County7
- Westmoreland County6
- McKean County6
- Union County6
- Venango County6
- Warren County6
- Clearfield County5
- Lycoming County5
- Bedford County5
- Erie County5
- Fayette County5
- Greene County5
- Adams County5
- Allegheny County4
- Washington County4
- Beaver County4
- Butler County4
- Blair County4
- Cambria County4
- Centre County4
- Huntingdon County4
- Juniata County4
- Perry County4
- Snyder County4
- Cumberland County4
- Fulton County4
- Somerset County4
- Clarion County4
- Forest County4
- Mercer County4
- Lebanon County4
- Armstrong County3
- Mifflin County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.