Alert archive / Pennsylvania / Flash Flood Warnings
Flash Flood Warnings in Pennsylvania, 1990
179 flash flood warnings in 1990. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 1990. Tap one for its archive.
- Flash Flood Warnings
- 179
- Busiest month
- July79 flash flood warnings
- Busiest day
- July 15, 199024 flash flood warnings
Over time
By month
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 |
|---|---|---|---|---|
| Jan 30, 4:25 AM EST | Flash Flood Warning | PHI | Montgomery | 4 hr |
| Feb 15, 10:45 PM EST | Flash Flood Warning | PBZ | Butler | 3 hr |
| May 15, 4:53 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 3 hr |
| May 16, 8:18 PM EDT | Flash Flood Warning | CTP | Montour | 3 hr |
| May 20, 10:02 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| May 27, 7:07 PM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| May 29, 1:43 PM EDT | Flash Flood Warning | PHI | Chester | 62 min |
| Jun 6, 11:00 PM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Jun 8, 11:21 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler | 2 hr |
| Jun 9, 12:10 AM EDT | Flash Flood Warning | PBZ | Clearfield, Indiana | 80 min |
| Jun 9, 1:16 AM EDT | Flash Flood Warning | PBZ | Clearfield | 2 hr |
| Jun 9, 1:50 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 115 min |
| Jun 9, 2:33 AM EDT | Flash Flood Warning | PHI | Montgomery | 57 min |
| Jun 14, 9:08 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jun 14, 11:09 PM EDT | Flash Flood Warning | PBZ | Fayette | 5 hr |
| Jun 14, 11:29 PM EDT | Flash Flood Warning | PBZ | Allegheny | 5 hr |
| Jun 15, 4:00 AM EDT | Flash Flood Warning | PBZ | Clearfield | 4 hr |
| Jun 15, 4:00 AM EDT | Flash Flood Warning | PBZ | Jefferson | 2 hr |
| Jun 18, 10:36 AM EDT | Flash Flood Warning | CLE | Elk, McKean | 3 hr |
| Jun 18, 11:14 AM EDT | Flash Flood Warning | CLE | Potter | 61 min |
| Jun 18, 7:44 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 2 hr |
| Jun 18, 7:44 PM EDT | Flash Flood Warning | PHI | Bucks, Philadelphia | 2 hr |
| Jun 28, 2:44 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
| Jun 28, 5:45 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 2 hr |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Fayette, Washington, Westmoreland | 64 min |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Clarion, Jefferson | 64 min |
| Jun 30, 7:56 PM EDT | Flash Flood Warning | PBZ | Clearfield | 64 min |
| Jun 30, 8:27 PM EDT | Flash Flood Warning | PBZ | Somerset | 33 min |
| Jun 30, 8:27 PM EDT | Flash Flood Warning | PBZ | Allegheny | 33 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Clearfield, Indiana, Jefferson | 61 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Cambria, Somerset, Westmoreland | 61 min |
| Jun 30, 8:59 PM EDT | Flash Flood Warning | PBZ | Fayette | 61 min |
| Jun 30, 9:54 PM EDT | Flash Flood Warning | PBZ | Clearfield, Jefferson | 66 min |
| Jun 30, 9:54 PM EDT | Flash Flood Warning | PBZ | Fayette | 66 min |
| Jun 30, 10:57 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jun 30, 11:59 PM EDT | Flash Flood Warning | PBZ | Fayette | 4 hr |
| Jul 2, 1:15 AM EDT | Flash Flood Warning | PBZ | Somerset | 3 hr |
| Jul 2, 1:25 AM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Jul 5, 2:34 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jul 5, 8:12 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington | 2 hr |
| Jul 9, 12:48 PM EDT | Flash Flood Warning | CLE | Venango | 57 min |
| Jul 9, 12:54 PM EDT | Flash Flood Warning | PBZ | Clarion, Jefferson | 2 hr |
| Jul 9, 1:12 PM EDT | Flash Flood Warning | PBZ | Clearfield | 108 min |
| Jul 9, 1:12 PM EDT | Flash Flood Warning | PBZ | Armstrong | 108 min |
| Jul 9, 1:50 PM EDT | Flash Flood Warning | CLE | Venango | 70 min |
| Jul 9, 3:00 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 2 hr |
| Jul 9, 3:01 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver | 89 min |
| Jul 9, 3:50 PM EDT | Flash Flood Warning | PBZ | Washington, Westmoreland | 100 min |
| Jul 9, 4:36 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver | 114 min |
| Jul 9, 6:29 PM EDT | Flash Flood Warning | PBZ | Armstrong | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Indiana | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Clearfield | 3 hr |
| Jul 10, 1:50 PM EDT | Flash Flood Warning | PBZ | Jefferson | 93 min |
| Jul 12, 9:20 AM EDT | Flash Flood Warning | PBZ | Beaver, Butler | 4 hr |
| Jul 12, 10:12 AM EDT | Flash Flood Warning | CLE | Lawrence | 4 hr |
| Jul 12, 10:35 AM EDT | Flash Flood Warning | PBZ | Armstrong, Clarion, Jefferson | 3 hr |
| Jul 12, 12:08 PM EDT | Flash Flood Warning | PBZ | Indiana | 112 min |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Armstrong, Beaver, Butler, Clarion | 3 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Allegheny | 2 hr |
| Jul 12, 12:40 PM EDT | Flash Flood Warning | PBZ | Clearfield | 2 hr |
| Jul 12, 12:59 PM EDT | Flash Flood Warning | CLE | Elk, McKean | 3 hr |
| Jul 12, 3:50 PM EDT | Flash Flood Warning | PBZ | Bedford, Cambria | 2 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Beaver, Butler, Westmoreland | 4 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Jefferson | 4 hr |
| Jul 12, 8:00 PM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Jul 12, 11:59 PM EDT | Flash Flood Warning | PBZ | Beaver | 4 hr |
| Jul 13, 4:00 AM EDT | Flash Flood Warning | PBZ | Beaver | 6 hr |
| Jul 14, 11:13 PM EDT | Flash Flood Warning | PBZ | Beaver, Washington | 5 hr |
| Jul 14, 11:13 PM EDT | Flash Flood Warning | PBZ | Greene | 5 hr |
| Jul 15, 1:07 AM EDT | Flash Flood Warning | CLE | Lawrence | 2 hr |
| Jul 15, 1:59 AM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| Jul 15, 2:06 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 2:45 AM EDT | Flash Flood Warning | PBZ | Beaver, Washington | 5 hr |
| Jul 15, 2:45 AM EDT | Flash Flood Warning | PBZ | Greene | 5 hr |
| Jul 15, 3:10 AM EDT | Flash Flood Warning | CLE | Lawrence, Mercer | 3 hr |
| Jul 15, 4:40 AM EDT | Flash Flood Warning | CLE | Venango | 3 hr |
| Jul 15, 4:43 AM EDT | Flash Flood Warning | PBZ | Allegheny, Butler | 3 hr |
| Jul 15, 5:26 AM EDT | Flash Flood Warning | CLE | Warren | 3 hr |
| Jul 15, 5:44 AM EDT | Flash Flood Warning | CLE | Crawford | 3 hr |
| Jul 15, 7:08 AM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Jul 15, 7:39 AM EDT | Flash Flood Warning | CLE | Crawford, Venango, Warren | 2 hr |
| Jul 15, 9:53 AM EDT | Flash Flood Warning | CLE | Crawford, Venango, Warren | 3 hr |
| Jul 15, 12:36 PM EDT | Flash Flood Warning | PBZ | Fayette | 2 hr |
| Jul 15, 1:00 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 2 hr |
| Jul 15, 2:30 PM EDT | Flash Flood Warning | PBZ | Somerset | 2 hr |
| Jul 15, 2:30 PM EDT | Flash Flood Warning | PBZ | Indiana | 2 hr |
| Jul 15, 2:52 PM EDT | Flash Flood Warning | PBZ | Beaver, Butler | 2 hr |
| Jul 15, 3:15 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 75 min |
| Jul 15, 3:50 PM EDT | Flash Flood Warning | PBZ | Bedford, Cambria | 2 hr |
| Jul 15, 4:17 PM EDT | Flash Flood Warning | PBZ | Blair, Clearfield | 3 hr |
| Jul 15, 4:53 PM EDT | Flash Flood Warning | PBZ | Beaver | 3 hr |
| Jul 20, 2:55 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 65 min |
| Jul 20, 5:01 PM EDT | Flash Flood Warning | PBZ | Fayette, Somerset | 119 min |
| Jul 20, 6:29 PM EDT | Flash Flood Warning | PBZ | Butler | 2 hr |
| Jul 21, 2:05 PM EDT | Flash Flood Warning | PBZ | Allegheny | 115 min |
| Jul 21, 3:20 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Jul 21, 3:20 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 3 hr |
| Jul 21, 8:48 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 2 hr |
| Jul 22, 4:18 PM EDT | Flash Flood Warning | PBZ | Allegheny, Butler | 102 min |
| Jul 22, 6:38 PM EDT | Flash Flood Warning | PBZ | Clearfield | 67 min |
| Jul 22, 7:33 PM EDT | Flash Flood Warning | CLE | Venango | 3 hr |
| Jul 22, 8:52 PM EDT | Flash Flood Warning | PBZ | Clarion | 3 hr |
| Jul 22, 11:35 PM EDT | Flash Flood Warning | PBZ | Clarion | 4 hr |
| Jul 22, 11:49 PM EDT | Flash Flood Warning | CLE | Venango | 4 hr |
| Jul 23, 12:54 AM EDT | Flash Flood Warning | CLE | Mercer | 2 hr |
| Aug 11, 2:15 PM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 60 min |
| Aug 19, 5:26 AM EDT | Flash Flood Warning | PBZ | Greene | 3 hr |
| Aug 19, 6:40 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Aug 19, 8:05 PM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 81 min |
| Aug 19, 10:50 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 2 hr |
| Aug 27, 6:34 PM EDT | Flash Flood Warning | PHI | Montgomery, Philadelphia | 116 min |
| Sep 6, 9:01 PM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Sep 6, 11:41 PM EDT | Flash Flood Warning | CLE | Erie | 3 hr |
| Sep 7, 12:06 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 12:06 AM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 4 hr |
| Sep 7, 4:00 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 7:30 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 7, 9:45 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Sep 7, 1:50 PM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 12, 7:15 PM EDT | Flash Flood Warning | PBZ | Cambria | 3 hr |
| Sep 12, 8:16 PM EDT | Flash Flood Warning | PBZ | Fayette | 104 min |
| Oct 11, 1:20 PM EDT | Flash Flood Warning | CTP | Tioga | 4 hr |
| Oct 13, 1:49 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry | 56 min |
| Oct 13, 2:25 AM EDT | Flash Flood Warning | CTP | Cumberland, Perry | 65 min |
| Oct 13, 2:25 AM EDT | Flash Flood Warning | CTP | Northumberland, Union | 65 min |
| Oct 13, 3:44 AM EDT | Flash Flood Warning | CTP | Northumberland, Snyder, Union | 61 min |
| Oct 13, 3:44 AM EDT | Flash Flood Warning | CTP | Cumberland, Juniata, Perry | 61 min |
| Oct 13, 4:50 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry, Snyder, Union | 55 min |
| Oct 13, 5:42 AM EDT | Flash Flood Warning | CTP | Northumberland, Perry, Snyder, Union | 2 hr |
| Oct 13, 6:50 AM EDT | Flash Flood Warning | CTP | Bradford | 4 hr |
| Oct 13, 7:55 AM EDT | Flash Flood Warning | CTP | Lycoming | 4 hr |
| Oct 13, 9:44 AM EDT | Flash Flood Warning | CTP | Adams | 3 hr |
| Oct 13, 9:50 AM EDT | Flash Flood Warning | CTP | Lycoming | 4 hr |
| Oct 13, 10:28 AM EDT | Flash Flood Warning | CTP | Union | 3 hr |
| Oct 13, 3:49 PM EDT | Flash Flood Warning | CTP | Cumberland | 4 hr |
| Oct 18, 4:38 PM EDT | Flash Flood Warning | CTP | York | 2 hr |
| Oct 23, 3:03 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 6 hr |
| Oct 23, 3:05 PM EDT | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Oct 23, 3:19 PM EDT | Flash Flood Warning | CTP | York | 4 hr |
| Oct 23, 3:31 PM EDT | Flash Flood Warning | CTP | Mifflin | 4 hr |
| Oct 23, 3:40 PM EDT | Flash Flood Warning | CTP | Bradford, Tioga | 5 hr |
| Oct 23, 4:00 PM EDT | Flash Flood Warning | CTP | Union | 4 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | Snyder, Union | 3 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Oct 23, 8:55 PM EDT | Flash Flood Warning | CTP | Bradford, Lycoming, Sullivan, Tioga | 3 hr |
| Oct 23, 10:09 PM EDT | Flash Flood Warning | CTP | York | 2 hr |
| Oct 23, 10:09 PM EDT | Flash Flood Warning | CTP | Snyder | 2 hr |
| Oct 23, 11:35 PM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 23, 11:45 PM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 24, 1:47 AM EDT | Flash Flood Warning | CTP | Bradford | 2 hr |
| Oct 24, 4:02 AM EDT | Flash Flood Warning | CTP | Bradford | 4 hr |
| Dec 18, 1:18 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 4 hr |
| Dec 18, 2:02 PM EST | Flash Flood Warning | CLE | Lawrence, Mercer | 3 hr |
| Dec 18, 5:00 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 4 hr |
| Dec 18, 7:00 PM EST | Flash Flood Warning | PBZ | Fayette | 4 hr |
| Dec 18, 8:30 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 3 hr |
| Dec 18, 9:00 PM EST | Flash Flood Warning | PBZ | Greene, Washington | 2 hr |
| Dec 19, 12:56 AM EST | Flash Flood Warning | PBZ | Westmoreland | 6 hr |
| Dec 30, 8:46 AM EST | Flash Flood Warning | PBZ | Allegheny | 4 hr |
| Dec 30, 8:46 AM EST | Flash Flood Warning | PBZ | Clarion | 4 hr |
| Dec 30, 9:04 AM EST | Flash Flood Warning | PBZ | Beaver, Butler | 4 hr |
| Dec 30, 9:04 AM EST | Flash Flood Warning | PBZ | Armstrong | 4 hr |
| Dec 30, 10:37 AM EST | Flash Flood Warning | CLE | Mercer | 4 hr |
| Dec 30, 10:41 AM EST | Flash Flood Warning | PBZ | Westmoreland | 5 hr |
| Dec 30, 12:30 PM EST | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler, Clarion, Westmoreland | 5 hr |
| Dec 30, 12:30 PM EST | Flash Flood Warning | PBZ | Beaver | 5 hr |
| Dec 30, 12:55 PM EST | Flash Flood Warning | PBZ | Butler | 4 hr |
| Dec 30, 12:56 PM EST | Flash Flood Warning | CLE | Lawrence | 2 hr |
| Dec 30, 1:40 PM EST | Flash Flood Warning | CLE | Forest, McKean, Venango, Warren | 4 hr |
| Dec 30, 1:40 PM EST | Flash Flood Warning | CLE | Crawford, Erie | 4 hr |
| Dec 30, 2:54 PM EST | Flash Flood Warning | CLE | Mercer | 4 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Allegheny, Armstrong, Butler, Westmoreland | 6 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Beaver | 6 hr |
| Dec 30, 4:30 PM EST | Flash Flood Warning | PBZ | Clarion | 6 hr |
| Dec 30, 10:19 PM EST | Flash Flood Warning | CLE | Crawford | 3 hr |
| Dec 31, 5:04 AM EST | Flash Flood Warning | CLE | Mercer | 3 hr |
| Dec 31, 9:45 AM EST | Flash Flood Warning | PBZ | Beaver, Butler | 6 hr |
| Dec 31, 3:30 PM EST | Flash Flood Warning | PBZ | Beaver, Butler | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Butler County21
- Allegheny County20
- Westmoreland County18
- Washington County17
- Beaver County16
- Armstrong County14
- Fayette County14
- Clearfield County11
- Jefferson County9
- Clarion County9
- Greene County9
- Mercer County8
- Venango County8
- Union County7
- Bradford County7
- Indiana County6
- Crawford County6
- Somerset County5
- Lawrence County5
- Northumberland County5
- Perry County5
- Snyder County5
- Montgomery County4
- Cambria County4
- Warren County4
- Lycoming County4
- York County4
- Chester County3
- Philadelphia County3
- McKean County3
- Erie County3
- Tioga County3
- Cumberland County3
- Delaware County2
- Elk County2
- Bedford County2
- Sullivan County2
- Montour County1
- Potter County1
- Bucks County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19891991
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.