Alert archive / Pennsylvania / 2004
Weather alerts in Pennsylvania, July 2004
146 weather alerts in July 2004, 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 July 2004. Tap one for its archive.
- Alerts
- 146
- Warnings
- 130
- Watches
- 3
- Advisories
- 0
- Busiest day
- July 14, 200442 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 |
|---|---|---|---|---|
| Jul 1, 11:50 AM EDT | Mesoscale Discussion | SPC | Delaware, York | 115 min |
| Jul 1, 2:38 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 52 min |
| Jul 1, 2:57 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 63 min |
| Jul 1, 3:23 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 82 min |
| Jul 1, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 28 min |
| Jul 1, 4:20 PM EDT | Tornado Warning | CTP | Lancaster | 55 min |
| Jul 1, 4:56 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 79 days |
| Jul 1, 5:47 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 1, 8:47 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 1, 8:47 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 2, 10:04 AM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 4, 11:08 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 17 more | 3 hr |
| Jul 4, 12:50 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 5 hr |
| Jul 4, 3:00 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 18 more | 2 hr |
| Jul 4, 4:24 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 66 min |
| Jul 4, 4:38 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 67 min |
| Jul 4, 4:55 PM EDT | Mesoscale Discussion | SPC | Bedford, Blair, Cambria, Cameron, Clearfield, Elk and 9 more | 65 min |
| Jul 4, 4:57 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 63 min |
| Jul 4, 5:34 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 56 min |
| Jul 4, 5:51 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 54 min |
| Jul 4, 6:01 PM EDT | Tornado Warning | PBZ | Jefferson | 29 min |
| Jul 4, 6:03 PM EDT | Tornado Warning | CTP | Clearfield | 27 min |
| Jul 4, 6:10 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 80 min |
| Jul 4, 6:30 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 75 min |
| Jul 4, 6:36 PM EDT | Tornado Warning | CTP | Clearfield, Elk | 54 min |
| Jul 4, 7:29 PM EDT | Mesoscale Discussion | SPC | Cameron, Centre, Clinton, Potter, Tioga | 61 min |
| Jul 4, 7:30 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 45 min |
| Jul 5, 5:24 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 36 min |
| Jul 5, 8:06 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 39 min |
| Jul 7, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Chester, Cumberland, Dauphin, Lancaster and 3 more | 5 hr |
| Jul 7, 2:35 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Chester, Cumberland, Dauphin, Lancaster and 3 more | 55 min |
| Jul 7, 7:43 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery | 73 days |
| Jul 8, 2:33 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Monroe, Pike, Wayne | 117 min |
| Jul 12, 5:09 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 12, 7:26 AM EDT | Flash Flood Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 68 days |
| Jul 12, 7:50 AM EDT | Flash Flood Warning | PHI | Chester | 68 days |
| Jul 12, 8:28 AM EDT | Flash Flood Warning | PHI | Montgomery | 78 days |
| Jul 12, 9:31 AM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware | 78 days |
| Jul 12, 10:05 AM EDT | Flash Flood Warning | CTP | Schuylkill | 4 hr |
| Jul 12, 12:10 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 78 days |
| Jul 12, 12:13 PM EDT | Flash Flood Warning | CLE | Crawford | 4 hr |
| Jul 12, 12:44 PM EDT | Flash Flood Warning | CLE | Erie | 4 hr |
| Jul 12, 12:48 PM EDT | Flash Flood Warning | CTP | Warren | 4 hr |
| Jul 12, 2:41 PM EDT | Mesoscale Discussion | SPC | Adams, Lancaster, York | 2 hr |
| Jul 12, 3:28 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 62 min |
| Jul 12, 4:27 PM EDT | Flash Flood Warning | CTP | Perry | 4 hr |
| Jul 12, 4:33 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 78 days |
| Jul 12, 4:49 PM EDT | Flash Flood Warning | PHI | Philadelphia | 78 days |
| Jul 12, 4:50 PM EDT | Special Marine Warning | PHI | 70 min | |
| Jul 12, 6:51 PM EDT | Flash Flood Warning | PHI | Chester, Delaware | 78 days |
| Jul 12, 7:32 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 78 days |
| Jul 12, 8:07 PM EDT | Flash Flood Warning | CTP | Elk | 3 hr |
| Jul 14, 4:16 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 59 min |
| Jul 14, 5:32 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 73 min |
| Jul 14, 8:13 AM EDT | Severe Thunderstorm Warning | CTP | Cameron | 32 min |
| Jul 14, 12:06 PM EDT | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Bedford, Blair, Butler and 35 more | 2 hr |
| Jul 14, 12:08 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 52 min |
| Jul 14, 12:15 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 60 min |
| Jul 14, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Carbon, Centre and 27 more | 6 hr |
| Jul 14, 1:50 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 40 min |
| Jul 14, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 43 min |
| Jul 14, 2:12 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 63 min |
| Jul 14, 2:21 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Perry | 24 min |
| Jul 14, 2:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 53 min |
| Jul 14, 2:23 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 52 min |
| Jul 14, 2:29 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 61 min |
| Jul 14, 2:36 PM EDT | Flash Flood Warning | CTP | Dauphin | 4 hr |
| Jul 14, 2:43 PM EDT | Severe Thunderstorm Warning | CTP | York | 62 min |
| Jul 14, 2:59 PM EDT | Tornado Warning | CTP | Lebanon | 46 min |
| Jul 14, 3:05 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 76 days |
| Jul 14, 3:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 63 min |
| Jul 14, 3:16 PM EDT | Mesoscale Discussion | SPC | Susquehanna, Wayne, Wyoming | 89 min |
| Jul 14, 3:19 PM EDT | Tornado Warning | CTP | York | 41 min |
| Jul 14, 3:25 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 65 min |
| Jul 14, 3:40 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 65 min |
| Jul 14, 3:40 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Carbon, Centre and 28 more | 95 min |
| Jul 14, 3:44 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 31 min |
| Jul 14, 4:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 65 min |
| Jul 14, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 66 min |
| Jul 14, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 65 min |
| Jul 14, 4:44 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 61 min |
| Jul 14, 5:01 PM EDT | Tornado Warning | PHI | Montgomery | 29 min |
| Jul 14, 5:17 PM EDT | Special Marine Warning | PHI | 103 min | |
| Jul 14, 5:28 PM EDT | Flash Flood Warning | CTP | Lancaster | 4 hr |
| Jul 14, 5:41 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 64 min |
| Jul 14, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 61 min |
| Jul 14, 5:51 PM EDT | Flash Flood Warning | PHI | Bucks | 2 hr |
| Jul 14, 6:01 PM EDT | Special Marine Warning | PHI | 74 min | |
| Jul 14, 6:39 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 14, 6:39 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 14, 6:46 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Jul 14, 7:00 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 14, 7:38 PM EDT | Special Marine Warning | PHI | 82 min | |
| Jul 14, 7:38 PM EDT | Special Marine Warning | PHI | 82 min | |
| Jul 17, 5:48 PM EDT | Severe Thunderstorm Warning | CTP | York | 57 min |
| Jul 17, 7:10 PM EDT | Flash Flood Warning | BGM | Susquehanna | 3 hr |
| Jul 17, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 63 min |
| Jul 17, 8:15 PM EDT | Flash Flood Warning | CTP | Tioga | 6 hr |
| Jul 17, 8:38 PM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Jul 18, 1:02 AM EDT | Flash Flood Warning | CTP | Warren | 6 hr |
| Jul 18, 1:45 AM EDT | Flash Flood Warning | CLE | Crawford, Erie | 4 hr |
| Jul 18, 6:14 AM EDT | Special Marine Warning | PHI | 76 min | |
| Jul 18, 6:14 AM EDT | Special Marine Warning | PHI | 76 min | |
| Jul 18, 1:05 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 40 min |
| Jul 18, 2:54 PM EDT | Flash Flood Warning | PBZ | Indiana | 3 hr |
| Jul 18, 3:10 PM EDT | Flash Flood Warning | PBZ | Venango | 3 hr |
| Jul 18, 3:23 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 52 min |
| Jul 18, 3:36 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Jul 18, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 42 min |
| Jul 18, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 45 min |
| Jul 18, 5:34 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 56 min |
| Jul 18, 5:38 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jul 18, 6:35 PM EDT | Flash Flood Warning | PBZ | Fayette | 3 hr |
| Jul 18, 6:36 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 39 min |
| Jul 18, 7:00 PM EDT | Flash Flood Warning | CTP | Somerset | 4 hr |
| Jul 19, 5:29 PM EDT | Flash Flood Warning | BGM | Bradford | 2 hr |
| Jul 22, 6:50 PM EDT | Flash Flood Warning | CTP | Dauphin | 3 hr |
| Jul 23, 2:16 PM EDT | Flash Flood Warning | BGM | Bradford | 89 min |
| Jul 23, 3:04 PM EDT | Flash Flood Warning | CTP | Dauphin, Lebanon | 6 hr |
| Jul 23, 6:33 PM EDT | Flash Flood Warning | PHI | Berks | 117 min |
| Jul 23, 6:43 PM EDT | Special Marine Warning | PHI | 47 min | |
| Jul 27, 2:26 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 34 min |
| Jul 27, 2:59 PM EDT | Flash Flood Warning | PHI | Montgomery | 3 hr |
| Jul 27, 3:31 PM EDT | Flash Flood Warning | CTP | Franklin | 6 hr |
| Jul 27, 5:23 PM EDT | Special Marine Warning | PHI | 52 min | |
| Jul 27, 6:38 PM EDT | Flash Flood Warning | PHI | Berks, Montgomery | 4 hr |
| Jul 27, 7:15 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jul 27, 7:46 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 29 min |
| Jul 27, 9:37 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 38 min |
| Jul 27, 9:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 36 min |
| Jul 27, 10:44 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 28, 2:28 AM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jul 28, 7:00 PM EDT | Flash Flood Warning | PHI | Montgomery | 2 hr |
| Jul 28, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 50 min |
| Jul 28, 7:21 PM EDT | Flash Flood Warning | PHI | Bucks | 114 min |
| Jul 30, 6:58 PM EDT | Flash Flood Warning | BGM | Bradford | 92 min |
| Jul 30, 7:10 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 35 min |
| Jul 31, 11:55 AM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jul 31, 12:32 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Luzerne, Monroe, Pike, Susquehanna, Wayne and 1 more | 118 min |
| Jul 31, 2:45 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 45 min |
| Jul 31, 2:55 PM EDT | Flash Flood Warning | BGM | Bradford | 3 hr |
| Jul 31, 3:26 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 64 min |
| Jul 31, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 28 min |
| Jul 31, 4:06 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Carbon, Columbia, Cumberland, Dauphin and 19 more | 84 min |
| Jul 31, 4:49 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 6 hr |
| Jul 31, 5:41 PM EDT | Flash Flood Warning | BGM | Bradford | 2 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 | 55 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 13 |
| Flooding | |
| Flash Flood Warning | 52 |
| Marine | |
| Special Marine Warning | 16 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Berks County17
- Bucks County14
- Montgomery County14
- Lancaster County13
- Chester County13
- York County11
- Lebanon County10
- Dauphin County10
- Perry County9
- Elk County8
- Adams County8
- Cumberland County8
- Delaware County7
- Cameron County7
- Clearfield County7
- Crawford County7
- Fayette County7
- Indiana County7
- Westmoreland County7
- Monroe County7
- Philadelphia County7
- Bradford County7
- Butler County6
- Erie County6
- Jefferson County6
- McKean County6
- Warren County6
- Lehigh County6
- Northampton County6
- Franklin County6
- Armstrong County5
- Cambria County5
- Clarion County5
- Venango County5
- Washington County5
- Somerset County5
- Centre County5
- Tioga County5
- Lackawanna County5
- Pike County5
27 more counties
- Carbon County5
- Schuylkill County5
- Columbia County5
- Northumberland County5
- Susquehanna County5
- Allegheny County4
- Beaver County4
- Forest County4
- Greene County4
- Lawrence County4
- Bedford County4
- Blair County4
- Fulton County4
- Huntingdon County4
- Clinton County4
- Wayne County4
- Lycoming County4
- Montour County4
- Snyder County4
- Luzerne County4
- Sullivan County4
- Mercer County3
- Potter County3
- Juniata County3
- Mifflin County3
- Union County3
- Wyoming County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.