Alert archive / Pennsylvania / 2009
Weather alerts in Pennsylvania, September 2009
32 weather alerts in September 2009, 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 2009. Tap one for its archive.
- Alerts
- 32
- Warnings
- 3
- Watches
- 1
- Advisories
- 14
- Busiest day
- September 28, 200913 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 |
|---|---|---|---|---|
| Sep 10, 2:50 PM EDT | Flash Flood Watch | PHI | Delaware, Philadelphia | 25 hr |
| Sep 11, 8:09 AM EDT | Areal Flood Advisory | CTP | Lancaster, Lebanon, York | 4 hr |
| Sep 11, 8:41 AM EDT | Areal Flood Advisory | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 11, 9:41 AM EDT | Areal Flood Warning | PHI | Chester | 82 min |
| Sep 11, 12:05 PM EDT | Areal Flood Advisory | CTP | Dauphin, Lancaster, Lebanon, York | 4 hr |
| Sep 12, 2:21 AM EDT | Areal Flood Advisory | PHI | Monroe | 3 hr |
| Sep 13, 7:24 AM EDT | Dense Fog Advisory | PBZ | Butler, Clarion, Forest, Jefferson, Lawrence, Mercer and 1 more | 3 hr |
| Sep 15, 2:52 PM EDT | Coastal Flood Advisory | PHI | Delaware, Philadelphia | 59 hr |
| Sep 19, 3:59 AM EDT | Frost Advisory | BGM | Bradford, Lackawanna, Susquehanna, Wayne, Wyoming | 29 hr |
| Sep 19, 3:19 PM EDT | Frost Advisory | CTP | Lycoming, McKean, Potter, Sullivan, Tioga | 18 hr |
| Sep 19, 3:27 PM EDT | Frost Advisory | PHI | Carbon, Monroe | 17 hr |
| Sep 23, 6:16 PM EDT | Mesoscale Discussion | SPC | Bradford, Clinton, Lycoming, Potter, Sullivan, Susquehanna and 3 more | 89 min |
| Sep 23, 8:49 PM EDT | Special Weather Statement | CTP | Adams, Dauphin, Lancaster, Lebanon, Schuylkill, York | 26 min |
| Sep 23, 9:12 PM EDT | Special Weather Statement | CTP | Adams, Lancaster, Lebanon, Schuylkill, York | 78 min |
| Sep 27, 2:18 PM EDT | Wind Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more | 29 hr |
| Sep 27, 3:06 PM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 28 hr |
| Sep 27, 3:48 PM EDT | Wind Advisory | CLE | Crawford, Erie | 35 hr |
| Sep 28, 5:54 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 51 min |
| Sep 28, 7:49 AM EDT | Special Weather Statement | CTP | Cameron, Elk | 56 min |
| Sep 28, 8:12 AM EDT | Special Weather Statement | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Elk | 63 min |
| Sep 28, 8:26 AM EDT | Special Weather Statement | CTP | McKean | 34 min |
| Sep 28, 8:45 AM EDT | Special Weather Statement | CTP | Bedford, Blair, Huntingdon, Somerset | 60 min |
| Sep 28, 9:23 AM EDT | Special Weather Statement | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Potter | 52 min |
| Sep 28, 9:56 AM EDT | Special Weather Statement | CTP | Blair, Huntingdon, Lycoming, Mifflin, Tioga, Union | 64 min |
| Sep 28, 11:05 AM EDT | Special Weather Statement | CTP | Columbia, Montour, Sullivan, Union | 40 min |
| Sep 28, 12:24 PM EDT | Special Weather Statement | CTP | McKean | 66 min |
| Sep 28, 2:35 PM EDT | Special Weather Statement | CTP | Tioga | 40 min |
| Sep 28, 2:46 PM EDT | Special Weather Statement | CTP | Tioga | 29 min |
| Sep 28, 4:25 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 65 min |
| Sep 28, 6:12 PM EDT | Special Weather Statement | CTP | Schuylkill | 48 min |
| Sep 30, 2:11 PM EDT | Frost Advisory | CTP | Cambria, Cameron, Clearfield, Elk, Lycoming, McKean and 5 more | 14 hr |
| Sep 30, 3:27 PM EDT | Frost Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more | 18 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 | 2 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 13 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Cold | |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tioga County6
- McKean County5
- Potter County5
- Cameron County5
- Lancaster County4
- Lebanon County4
- York County4
- Lycoming County4
- Sullivan County4
- Blair County4
- Cambria County4
- Clearfield County4
- Elk County4
- Delaware County3
- Philadelphia County3
- Butler County3
- Clarion County3
- Forest County3
- Jefferson County3
- Lawrence County3
- Mercer County3
- Venango County3
- Bradford County3
- Susquehanna County3
- Clinton County3
- Schuylkill County3
- Centre County3
- Somerset County3
- Allegheny County3
- Beaver County3
- Washington County3
- Chester County2
- Dauphin County2
- Monroe County2
- Wayne County2
- Wyoming County2
- Adams County2
- Bedford County2
- Warren County2
- Armstrong County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.