Alert archive / Pennsylvania / 1999
Weather alerts in Pennsylvania, July 1999
192 weather alerts in July 1999, 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 1999. Tap one for its archive.
- Alerts
- 192
- Warnings
- 176
- Watches
- 16
- Advisories
- 0
- Busiest day
- July 10, 199938 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, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 46 min |
| Jul 1, 5:39 PM EDT | Severe Thunderstorm Warning | CTP | Fulton | 51 min |
| Jul 1, 6:20 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 55 min |
| Jul 1, 6:33 PM EDT | Tornado Warning | CTP | Lycoming | 37 min |
| Jul 1, 6:45 PM EDT | Severe Thunderstorm Watch | SPC | Armstrong, Butler, Cameron, Clarion, Clearfield, Crawford and 10 more | 6 hr |
| Jul 1, 6:50 PM EDT | Tornado Warning | CTP | Sullivan | 55 min |
| Jul 1, 6:59 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 66 min |
| Jul 1, 7:41 PM EDT | Tornado Warning | BGM | Bradford | 44 min |
| Jul 1, 9:34 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 56 min |
| Jul 1, 9:47 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 58 min |
| Jul 2, 6:00 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 60 min |
| Jul 3, 3:22 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 63 min |
| Jul 3, 4:06 PM EDT | Tornado Warning | CLE | Crawford | 34 min |
| Jul 3, 4:38 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 62 min |
| Jul 3, 5:38 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 47 min |
| Jul 3, 8:45 PM EDT | Severe Thunderstorm Watch | SPC | Wayne | 4 hr |
| Jul 6, 12:45 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Cameron, Crawford, Elk, Forest, Lycoming and 6 more | 5 hr |
| Jul 6, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | Wayne | 6 hr |
| Jul 6, 3:54 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 66 min |
| Jul 6, 4:47 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 58 min |
| Jul 6, 5:00 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 60 min |
| Jul 6, 5:02 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 33 min |
| Jul 6, 5:25 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 57 min |
| Jul 6, 5:48 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 57 min |
| Jul 6, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bradford, Butler, Cambria and 35 more | 5 hr |
| Jul 6, 6:05 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 55 min |
| Jul 6, 6:39 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 66 min |
| Jul 6, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 85 min |
| Jul 6, 7:00 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Westmoreland | 60 min |
| Jul 6, 7:26 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 64 min |
| Jul 6, 7:29 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 61 min |
| Jul 6, 7:36 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 64 min |
| Jul 6, 7:51 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 39 min |
| Jul 6, 8:00 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 40 min |
| Jul 6, 8:01 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 64 min |
| Jul 6, 8:08 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 67 min |
| Jul 9, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 58 min |
| Jul 9, 4:02 PM EDT | Tornado Warning | CTP | Elk | 28 min |
| Jul 9, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield | 65 min |
| Jul 9, 4:42 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 63 min |
| Jul 9, 5:15 PM EDT | Severe Thunderstorm Watch | SPC | Beaver, Butler, Crawford, Erie, Lawrence, Mercer and 1 more | 6 hr |
| Jul 9, 5:35 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Snyder, Union | 55 min |
| Jul 9, 6:07 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 63 min |
| Jul 9, 6:17 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 43 min |
| Jul 9, 6:20 PM EDT | Tornado Warning | CLE | Erie | 65 min |
| Jul 9, 6:31 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 64 min |
| Jul 9, 6:33 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 42 min |
| Jul 9, 6:39 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 66 min |
| Jul 9, 6:45 PM EDT | Severe Thunderstorm Watch | SPC | Armstrong, Bradford, Butler, Cameron, Centre, Clarion and 20 more | 5 hr |
| Jul 9, 6:48 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 57 min |
| Jul 9, 6:54 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 81 min |
| Jul 9, 6:56 PM EDT | Tornado Warning | CTP | Warren | 49 min |
| Jul 9, 7:14 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 61 min |
| Jul 9, 7:17 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 58 min |
| Jul 9, 7:26 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 64 min |
| Jul 9, 7:28 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler | 62 min |
| Jul 9, 7:45 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 30 min |
| Jul 9, 7:45 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 60 min |
| Jul 9, 7:51 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 54 min |
| Jul 9, 8:00 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 40 min |
| Jul 9, 8:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Bedford, Blair, Cambria, Fayette, Fulton and 6 more | 4 hr |
| Jul 9, 8:02 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 58 min |
| Jul 9, 8:06 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 39 min |
| Jul 9, 8:07 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 53 min |
| Jul 9, 8:22 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 53 min |
| Jul 9, 8:24 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield | 66 min |
| Jul 9, 8:26 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 34 min |
| Jul 9, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 62 min |
| Jul 9, 8:39 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 66 min |
| Jul 9, 8:40 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 65 min |
| Jul 9, 8:47 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, Potter | 28 min |
| Jul 9, 8:50 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 70 min |
| Jul 9, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 55 min |
| Jul 9, 9:00 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 90 min |
| Jul 9, 9:01 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 59 min |
| Jul 9, 9:03 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 42 min |
| Jul 9, 9:22 PM EDT | Tornado Warning | CTP | Cambria, Clearfield | 23 min |
| Jul 9, 9:28 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 77 min |
| Jul 9, 9:30 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 75 min |
| Jul 9, 9:34 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 26 min |
| Jul 9, 9:39 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 66 min |
| Jul 9, 9:40 PM EDT | Tornado Warning | CTP | Centre, Huntingdon | 50 min |
| Jul 9, 9:47 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder, Union | 73 min |
| Jul 9, 9:59 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| Jul 9, 10:00 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 75 min |
| Jul 9, 10:00 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Bradford, Carbon, Columbia and 27 more | 5 hr |
| Jul 9, 10:04 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 16 min |
| Jul 9, 10:10 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 65 min |
| Jul 9, 10:16 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 64 min |
| Jul 9, 10:19 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 86 min |
| Jul 9, 10:22 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 63 min |
| Jul 9, 10:47 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna | 48 min |
| Jul 9, 10:50 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 55 min |
| Jul 9, 11:05 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 40 min |
| Jul 9, 11:14 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 46 min |
| Jul 9, 11:26 PM EDT | Severe Thunderstorm Warning | BGM | Pike | 64 min |
| Jul 9, 11:28 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 32 min |
| Jul 17, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 43 min |
| Jul 17, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon, Mifflin | 45 min |
| Jul 17, 4:20 PM EDT | Flash Flood Warning | CTP | Somerset | 3 hr |
| Jul 17, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 58 min |
| Jul 17, 5:15 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 60 min |
| Jul 17, 5:55 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 65 min |
| Jul 17, 6:32 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 48 min |
| Jul 17, 7:51 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 49 min |
| Jul 17, 8:27 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 63 min |
| Jul 18, 5:14 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne | 46 min |
| Jul 19, 6:33 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Montgomery | 42 min |
| Jul 19, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 47 min |
| Jul 21, 11:09 PM EDT | Severe Thunderstorm Warning | CTP | York | 66 min |
| Jul 22, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 65 min |
| Jul 22, 5:15 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 60 min |
| Jul 23, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | Crawford, Erie, Lawrence, Mercer, Venango | 6 hr |
| Jul 24, 2:36 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 49 min |
| Jul 24, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | Carbon, Lehigh, Monroe, Northampton, Pike | 6 hr |
| Jul 24, 3:43 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 47 min |
| Jul 25, 3:06 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 58 min |
| Jul 25, 3:20 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 60 min |
| Jul 25, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 33 min |
| Jul 28, 9:43 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 58 min |
| Jul 28, 10:36 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 54 min |
| Jul 28, 10:40 AM EDT | Flash Flood Warning | PBZ | Mercer | 2 hr |
| Jul 28, 10:46 AM EDT | Flash Flood Warning | PBZ | Lawrence | 3 hr |
| Jul 28, 10:47 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 58 min |
| Jul 28, 10:55 AM EDT | Severe Thunderstorm Warning | PBZ | Butler | 65 min |
| Jul 28, 11:00 AM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 11 more | 6 hr |
| Jul 28, 11:30 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 60 min |
| Jul 28, 11:55 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 50 min |
| Jul 28, 12:17 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 58 min |
| Jul 28, 12:21 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 54 min |
| Jul 28, 12:21 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 54 min |
| Jul 28, 12:24 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 51 min |
| Jul 28, 12:27 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 63 min |
| Jul 28, 12:28 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 62 min |
| Jul 28, 12:28 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jul 28, 12:34 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 2 hr |
| Jul 28, 1:03 PM EDT | Flash Flood Warning | PBZ | Lawrence | 4 hr |
| Jul 28, 1:11 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 64 min |
| Jul 28, 1:21 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 54 min |
| Jul 28, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 58 min |
| Jul 28, 8:44 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 46 min |
| Jul 28, 9:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 41 min |
| Jul 28, 10:30 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 9 more | 6 hr |
| Jul 28, 11:05 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 60 min |
| Jul 29, 12:31 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 59 min |
| Jul 29, 12:41 AM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 64 min |
| Jul 29, 12:41 AM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 64 min |
| Jul 29, 12:57 AM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence | 63 min |
| Jul 29, 1:16 AM EDT | Flash Flood Warning | PBZ | Lawrence | 3 hr |
| Jul 29, 2:00 AM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver | 3 hr |
| Jul 30, 1:59 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 61 min |
| Jul 30, 2:57 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 63 min |
| Jul 30, 3:40 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 80 min |
| Jul 30, 3:50 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 55 min |
| Jul 30, 3:56 PM EDT | Severe Thunderstorm Warning | CTP | Union | 64 min |
| Jul 30, 4:02 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 58 min |
| Jul 30, 4:19 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 71 min |
| Jul 30, 4:31 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 49 min |
| Jul 30, 4:36 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Snyder | 69 min |
| Jul 30, 4:52 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Union | 83 min |
| Jul 30, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 58 min |
| Jul 30, 5:44 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 61 min |
| Jul 30, 6:00 PM EDT | Severe Thunderstorm Warning | CTP | Snyder, Union | 60 min |
| Jul 30, 6:17 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 73 min |
| Jul 30, 6:24 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin | 66 min |
| Jul 30, 7:05 PM EDT | Severe Thunderstorm Warning | CTP | York | 55 min |
| Jul 30, 7:23 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 67 min |
| Jul 30, 7:32 PM EDT | Tornado Warning | CTP | York | 28 min |
| Jul 31, 4:15 PM EDT | Severe Thunderstorm Watch | SPC | Crawford, Erie, Forest, McKean, Mercer, Potter and 2 more | 6 hr |
| Jul 31, 5:05 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 40 min |
| Jul 31, 5:10 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 35 min |
| Jul 31, 5:20 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 65 min |
| Jul 31, 5:31 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Jul 31, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | Bradford, Lackawanna, Sullivan, Susquehanna, Wayne, Wyoming | 6 hr |
| Jul 31, 6:04 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 59 min |
| Jul 31, 6:05 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 70 min |
| Jul 31, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 31 min |
| Jul 31, 6:18 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence | 57 min |
| Jul 31, 6:22 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 63 min |
| Jul 31, 6:22 PM EDT | Severe Thunderstorm Warning | PBZ | Venango | 58 min |
| Jul 31, 6:30 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 65 min |
| Jul 31, 6:33 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 62 min |
| Jul 31, 6:42 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 33 min |
| Jul 31, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 80 min |
| Jul 31, 6:59 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion | 76 min |
| Jul 31, 7:00 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 45 min |
| Jul 31, 7:08 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence | 62 min |
| Jul 31, 7:15 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 24 more | 5 hr |
| Jul 31, 7:37 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 53 min |
| Jul 31, 7:38 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Potter | 82 min |
| Jul 31, 7:39 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 61 min |
| Jul 31, 7:41 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 64 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 | |
| Severe Thunderstorm Warning | 158 |
| Tornado Warning | 10 |
| Severe Thunderstorm Watch | 16 |
| Flooding | |
| Flash Flood Warning | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Crawford County17
- Lawrence County17
- Elk County14
- Mercer County14
- Warren County14
- Butler County13
- Allegheny County13
- Erie County12
- McKean County12
- Venango County12
- Wayne County12
- Potter County11
- Bradford County11
- Lycoming County10
- Cameron County10
- Forest County10
- Tioga County10
- Beaver County10
- Cambria County10
- Clearfield County9
- Jefferson County9
- Centre County9
- Union County9
- Westmoreland County9
- Armstrong County8
- Clarion County8
- Snyder County8
- Susquehanna County8
- Sullivan County7
- Clinton County7
- Indiana County7
- Washington County7
- York County6
- Northumberland County6
- Huntingdon County6
- Somerset County6
- Dauphin County6
- Bedford County5
- Lackawanna County5
- Mifflin County5
25 more counties
- Monroe County5
- Wyoming County5
- Blair County5
- Fulton County4
- Carbon County4
- Columbia County4
- Montour County4
- Schuylkill County4
- Fayette County4
- Juniata County4
- Perry County4
- Franklin County3
- Lancaster County3
- Lehigh County3
- Luzerne County3
- Northampton County3
- Pike County3
- Greene County2
- Cumberland County2
- Lebanon County2
- Adams County1
- Berks County1
- Delaware County1
- Montgomery County1
- Philadelphia County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.