Alert archive / Pennsylvania / 2011
Weather alerts in Pennsylvania, April 2011
546 weather alerts in April 2011, 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 April 2011. Tap one for its archive.
- Alerts
- 546
- Warnings
- 233
- Watches
- 29
- Advisories
- 50
- Busiest day
- April 28, 2011149 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 |
|---|---|---|---|---|
| Apr 1, 3:57 AM EDT | Winter Weather Advisory | PHI | Carbon, Monroe | 8 hr |
| Apr 2, 6:32 AM EDT | Winter Weather Advisory | CTP | Bedford, Cambria, Somerset | 6 hr |
| Apr 3, 3:45 PM EDT | Wind Advisory | CLE | Erie | 24 hr |
| Apr 3, 6:15 PM EDT | Special Weather Statement | PBZ | Greene | 45 min |
| Apr 3, 6:25 PM EDT | Special Weather Statement | PBZ | Allegheny, Beaver, Westmoreland | 35 min |
| Apr 3, 7:04 PM EDT | Special Weather Statement | PBZ | Westmoreland | 11 min |
| Apr 3, 7:51 PM EDT | Special Weather Statement | PBZ | Westmoreland | 24 min |
| Apr 3, 8:26 PM EDT | Special Weather Statement | CTP | Bedford, Somerset | 49 min |
| Apr 3, 9:13 PM EDT | Special Weather Statement | CTP | Fulton | 32 min |
| Apr 4, 9:18 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 42 min |
| Apr 4, 9:19 AM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 26 min |
| Apr 4, 9:33 AM EDT | Special Weather Statement | CTP | Warren | 57 min |
| Apr 4, 9:50 AM EDT | Special Weather Statement | PBZ | Forest | 55 min |
| Apr 4, 9:51 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 39 min |
| Apr 4, 10:02 AM EDT | Special Weather Statement | PBZ | Beaver, Butler, Clarion, Lawrence, Mercer, Venango | 58 min |
| Apr 4, 10:12 AM EDT | Special Weather Statement | CTP | McKean | 33 min |
| Apr 4, 10:59 AM EDT | Special Weather Statement | CTP | Cameron, Elk | 46 min |
| Apr 4, 10:59 AM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 5 more | 2 hr |
| Apr 4, 11:32 AM EDT | Special Weather Statement | CTP | Potter | 28 min |
| Apr 4, 11:56 AM EDT | Special Weather Statement | CTP | Clinton | 34 min |
| Apr 4, 2:55 PM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Butler, Fayette, Greene, Indiana and 2 more | 65 min |
| Apr 4, 3:16 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 29 min |
| Apr 4, 3:33 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 42 min |
| Apr 4, 4:03 PM EDT | Special Weather Statement | PBZ | Washington | 42 min |
| Apr 4, 4:09 PM EDT | Special Weather Statement | CTP | Clinton | 36 min |
| Apr 4, 4:12 PM EDT | Mesoscale Discussion | SPC | Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland | 63 min |
| Apr 4, 4:21 PM EDT | Special Weather Statement | PBZ | Westmoreland | 39 min |
| Apr 4, 4:43 PM EDT | Special Weather Statement | CTP | Columbia, Montour | 32 min |
| Apr 4, 5:05 PM EDT | Special Weather Statement | PBZ | Beaver, Butler, Lawrence | 40 min |
| Apr 4, 5:47 PM EDT | Special Weather Statement | PBZ | Butler, Clarion, Forest, Venango | 58 min |
| Apr 4, 6:00 PM EDT | Special Weather Statement | PBZ | Fayette | 60 min |
| Apr 4, 6:00 PM EDT | Mesoscale Discussion | SPC | Allegheny, Fayette, Greene, Indiana, Somerset, Washington and 1 more | 90 min |
| Apr 4, 6:19 PM EDT | Special Weather Statement | CTP | Somerset | 41 min |
| Apr 4, 6:35 PM EDT | Special Weather Statement | CTP | Cambria | 40 min |
| Apr 4, 6:55 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Huntingdon | 35 min |
| Apr 4, 7:29 PM EDT | Special Weather Statement | CTP | Centre, Clinton, Mifflin | 31 min |
| Apr 4, 7:47 PM EDT | Special Weather Statement | CTP | Cambria | 28 min |
| Apr 4, 8:14 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Northumberland, Snyder, Union | 31 min |
| Apr 4, 10:00 PM EDT | Flood Watch | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 4 more | 10 hr |
| Apr 4, 10:22 PM EDT | Special Weather Statement | CTP | Adams, Cumberland, Dauphin, Lebanon, York | 38 min |
| Apr 5, 4:03 AM EDT | Special Weather Statement | PHI | Berks | 57 min |
| Apr 5, 4:05 AM EDT | Areal Flood Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 2 more | 3 hr |
| Apr 5, 4:53 AM EDT | Special Weather Statement | CTP | Lancaster | 22 min |
| Apr 5, 5:01 AM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 74 min |
| Apr 5, 5:03 AM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 5 more | 27 min |
| Apr 5, 5:07 AM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 2 hr |
| Apr 5, 5:23 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 67 min |
| Apr 5, 5:27 AM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 4 more | 3 hr |
| Apr 5, 5:29 AM EDT | Special Weather Statement | CTP | Lancaster | 31 min |
| Apr 5, 5:58 AM EDT | Special Weather Statement | PHI | Monroe, Northampton | 62 min |
| Apr 5, 6:05 AM EDT | Special Weather Statement | PHI | Philadelphia | 55 min |
| Apr 5, 6:25 AM EDT | Mesoscale Discussion | SPC | Bucks, Delaware, Philadelphia | 2 hr |
| Apr 5, 6:30 AM EDT | Special Weather Statement | PHI | Philadelphia | 60 min |
| Apr 5, 7:21 AM EDT | Areal Flood Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 3 more | 4 hr |
| Apr 5, 7:57 AM EDT | Areal Flood Warning | PBZ | Washington | 4 hr |
| Apr 5, 8:55 AM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Lehigh, Montgomery, Northampton | 65 min |
| Apr 5, 9:37 AM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 53 min |
| Apr 5, 10:16 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 44 min |
| Apr 5, 11:16 AM EDT | River Flood Advisory | PBZ | Allegheny | 5 days |
| Apr 5, 9:04 PM EDT | River Flood Warning | BGM | Bradford | 25 hr |
| Apr 6, 5:14 PM EDT | Winter Weather Advisory | CTP | McKean, Potter, Warren | 13 hr |
| Apr 11, 11:58 AM EDT | Special Weather Statement | PBZ | Washington | 47 min |
| Apr 11, 12:24 PM EDT | Mesoscale Discussion | SPC | Fayette, Greene, Somerset | 36 min |
| Apr 11, 12:48 PM EDT | Special Weather Statement | PBZ | Westmoreland | 57 min |
| Apr 11, 2:11 PM EDT | Special Weather Statement | CTP | Blair | 34 min |
| Apr 11, 2:42 PM EDT | Special Weather Statement | CTP | Mifflin | 33 min |
| Apr 11, 6:43 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Carbon, Columbia, Cumberland and 22 more | 62 min |
| Apr 11, 7:05 PM EDT | Special Weather Statement | CTP | Dauphin, Schuylkill | 25 min |
| Apr 11, 7:13 PM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 92 min |
| Apr 11, 7:46 PM EDT | Special Weather Statement | CTP | Lancaster, Lebanon, York | 59 min |
| Apr 11, 8:04 PM EDT | Special Weather Statement | PHI | Berks, Chester, Lehigh, Monroe, Montgomery, Northampton | 56 min |
| Apr 11, 9:03 PM EDT | Special Weather Statement | PHI | Bucks, Montgomery | 57 min |
| Apr 11, 9:48 PM EDT | River Flood Advisory | PBZ | Allegheny | 13 hr |
| Apr 12, 10:00 AM EDT | Special Weather Statement | PHI | Montgomery | 90 min |
| Apr 12, 5:37 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 23 min |
| Apr 12, 6:04 PM EDT | Special Weather Statement | PHI | Philadelphia | 41 min |
| Apr 12, 10:16 PM EDT | Areal Flood Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more | 3 hr |
| Apr 12, 10:20 PM EDT | River Flood Advisory | PBZ | Allegheny | 6 days |
| Apr 13, 11:48 AM EDT | Areal Flood Advisory | CTP | Blair, Huntingdon, Juniata, Mifflin, Perry, Snyder | 4 hr |
| Apr 15, 3:30 AM EDT | Wind Advisory | PBZ | Fayette, Forest, Greene, Jefferson, Westmoreland | 35 hr |
| Apr 15, 12:54 PM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more | 33 hr |
| Apr 15, 1:56 PM EDT | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 32 hr |
| Apr 15, 3:06 PM EDT | Coastal Flood Watch | PHI | Delaware, Philadelphia | 12 hr |
| Apr 15, 3:10 PM EDT | Wind Advisory | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 32 hr |
| Apr 15, 3:12 PM EDT | Wind Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 24 hr |
| Apr 15, 3:34 PM EDT | High Wind Warning | CLE | Erie | 22 hr |
| Apr 15, 3:34 PM EDT | Wind Advisory | CLE | Crawford, Erie | 22 hr |
| Apr 16, 1:48 AM EDT | Flood Watch | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 26 hr |
| Apr 16, 3:25 AM EDT | Coastal Flood Warning | PHI | Delaware, Philadelphia | 31 hr |
| Apr 16, 4:07 AM EDT | Flood Watch | PHI | Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more | 24 hr |
| Apr 16, 9:32 AM EDT | High Wind Warning | PBZ | Fayette, Westmoreland | 4 hr |
| Apr 16, 10:43 AM EDT | Mesoscale Discussion | SPC | Fayette, Greene, Washington | 62 min |
| Apr 16, 1:34 PM EDT | Mesoscale Discussion | SPC | Beaver, Crawford, Lawrence, Mercer, Washington | 116 min |
| Apr 16, 2:05 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 6 more | 55 min |
| Apr 16, 2:52 PM EDT | Areal Flood Advisory | CTP | Bedford, Blair, Cambria, Centre, Clearfield, Fulton and 4 more | 3 hr |
| Apr 16, 3:42 PM EDT | River Flood Warning | CTP | Huntingdon | 27 hr |
| Apr 16, 3:49 PM EDT | Wind Advisory | CLE | Crawford, Erie | 28 hr |
| Apr 16, 3:53 PM EDT | Special Weather Statement | CTP | Adams | 37 min |
| Apr 16, 4:01 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Perry and 1 more | 59 min |
| Apr 16, 4:01 PM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 27 hr |
| Apr 16, 4:29 PM EDT | Mesoscale Discussion | SPC | Adams, Chester, Franklin, Fulton, Lancaster, York | 31 min |
| Apr 16, 4:39 PM EDT | Areal Flood Warning | CTP | Adams, Centre, Clinton, Columbia, Cumberland, Dauphin and 17 more | 20 hr |
| Apr 16, 4:41 PM EDT | Tornado Watch | SPC | Adams, Bedford, Berks, Blair, Chester, Cumberland and 13 more | 6 hr |
| Apr 16, 4:50 PM EDT | Flash Flood Warning | CTP | Adams | 5 hr |
| Apr 16, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton, Perry | 37 min |
| Apr 16, 5:24 PM EDT | Flash Flood Warning | CTP | Cumberland | 5 hr |
| Apr 16, 5:38 PM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 7 hr |
| Apr 16, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 46 min |
| Apr 16, 6:04 PM EDT | Flash Flood Warning | CTP | Franklin | 5 hr |
| Apr 16, 6:22 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery | 12 hr |
| Apr 16, 6:27 PM EDT | River Flood Warning | CTP | Centre, Snyder, Union | 8 hr |
| Apr 16, 6:27 PM EDT | River Flood Warning | CTP | Cumberland | 50 hr |
| Apr 16, 6:27 PM EDT | River Flood Warning | CTP | Cumberland, York | 44 hr |
| Apr 16, 6:28 PM EDT | Areal Flood Advisory | BGM | Bradford, Susquehanna, Wyoming | 7 hr |
| Apr 16, 6:31 PM EDT | Special Weather Statement | CTP | Dauphin | 44 min |
| Apr 16, 6:37 PM EDT | Areal Flood Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 8 hr |
| Apr 16, 6:38 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Chester, Cumberland, Dauphin, Delaware and 13 more | 97 min |
| Apr 16, 6:46 PM EDT | Special Weather Statement | CTP | Adams, Lancaster, York | 29 min |
| Apr 16, 7:21 PM EDT | Special Weather Statement | CTP | Dauphin | 39 min |
| Apr 16, 7:27 PM EDT | Flash Flood Warning | CTP | Schuylkill | 5 hr |
| Apr 16, 7:47 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, York | 43 min |
| Apr 16, 7:52 PM EDT | River Flood Warning | CTP | Perry | 19 hr |
| Apr 16, 8:02 PM EDT | Special Weather Statement | CTP | Columbia, Lebanon, Schuylkill | 58 min |
| Apr 16, 8:05 PM EDT | Tornado Warning | CTP | Adams, York | 25 min |
| Apr 16, 8:08 PM EDT | Areal Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 8 hr |
| Apr 16, 8:25 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 65 min |
| Apr 16, 8:29 PM EDT | Tornado Warning | CTP | Lancaster, York | 31 min |
| Apr 16, 8:51 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 44 min |
| Apr 16, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 64 min |
| Apr 16, 9:18 PM EDT | River Flood Warning | PHI | Chester | 11 hr |
| Apr 16, 9:32 PM EDT | River Flood Warning | PHI | Delaware | 6 hr |
| Apr 16, 9:40 PM EDT | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 22 hr |
| Apr 16, 9:49 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 56 min |
| Apr 16, 9:58 PM EDT | Mesoscale Discussion | SPC | Berks, Chester, Delaware | 62 min |
| Apr 16, 10:02 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 12 hr |
| Apr 16, 10:02 PM EDT | River Flood Warning | CTP | Blair, Huntingdon | 3 hr |
| Apr 16, 10:02 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 28 hr |
| Apr 16, 10:02 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 33 hr |
| Apr 16, 10:13 PM EDT | Flash Flood Warning | CTP | Adams | 2 hr |
| Apr 16, 10:54 PM EDT | Flash Flood Warning | BGM | Bradford | 6 hr |
| Apr 16, 10:55 PM EDT | River Flood Warning | BGM | Bradford | 4 hr |
| Apr 16, 11:09 PM EDT | River Flood Warning | PHI | Bucks | 13 hr |
| Apr 16, 11:11 PM EDT | River Flood Warning | PHI | Montgomery | 6 hr |
| Apr 17, 12:24 AM EDT | River Flood Warning | CTP | Dauphin | 38 hr |
| Apr 17, 1:05 AM EDT | Areal Flood Warning | PHI | Berks | 5 hr |
| Apr 17, 3:34 AM EDT | High Wind Warning | CLE | Erie | 16 hr |
| Apr 17, 3:56 AM EDT | Areal Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Apr 17, 4:02 AM EDT | Wind Advisory | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 16 hr |
| Apr 17, 6:07 AM EDT | Areal Flood Warning | PHI | Chester | 3 hr |
| Apr 17, 6:37 AM EDT | River Flood Warning | PHI | Chester, Delaware | 7 hr |
| Apr 17, 9:51 AM EDT | Coastal Flood Warning | PHI | Delaware, Philadelphia | 4 hr |
| Apr 17, 11:13 AM EDT | River Flood Warning | BGM | Bradford | 10 hr |
| Apr 17, 12:28 PM EDT | River Flood Warning | CTP | Lancaster, York | 19 hr |
| Apr 17, 10:35 PM EDT | Coastal Flood Statement | PHI | Delaware, Philadelphia | 5 hr |
| Apr 17, 11:29 PM EDT | Special Weather Statement | CTP | Adams, Bedford, Blair, Cambria, Cumberland, Dauphin and 9 more | 3 hr |
| Apr 18, 4:05 PM EDT | Coastal Flood Statement | PHI | Delaware, Philadelphia | 12 hr |
| Apr 18, 10:04 PM EDT | Special Weather Statement | PBZ | Butler | 26 min |
| Apr 18, 10:28 PM EDT | Special Weather Statement | PBZ | Clarion | 32 min |
| Apr 19, 10:23 AM EDT | Flood Watch | PBZ | Fayette, Greene, Washington | 5 hr |
| Apr 19, 3:29 PM EDT | Flash Flood Watch | PBZ | Fayette, Greene, Washington | 3 hr |
| Apr 19, 3:37 PM EDT | Coastal Flood Statement | PHI | Delaware, Philadelphia | 6 hr |
| Apr 19, 4:10 PM EDT | Special Weather Statement | PBZ | Greene | 50 min |
| Apr 19, 4:13 PM EDT | River Flood Advisory | PBZ | Allegheny | 11 days |
| Apr 19, 4:36 PM EDT | Special Weather Statement | PBZ | Fayette, Greene | 54 min |
| Apr 19, 4:50 PM EDT | Special Weather Statement | CTP | Somerset | 55 min |
| Apr 19, 7:15 PM EDT | Special Weather Statement | PBZ | Armstrong, Butler, Clarion | 45 min |
| Apr 19, 8:16 PM EDT | Special Weather Statement | PBZ | Allegheny | 44 min |
| Apr 19, 8:39 PM EDT | Special Weather Statement | CTP | Blair, Cambria | 66 min |
| Apr 19, 8:43 PM EDT | Special Weather Statement | PBZ | Indiana | 47 min |
| Apr 19, 9:05 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Huntingdon | 40 min |
| Apr 19, 9:46 PM EDT | Special Weather Statement | CTP | Huntingdon | 44 min |
| Apr 19, 9:48 PM EDT | Coastal Flood Advisory | PHI | Delaware, Philadelphia | 5 hr |
| Apr 20, 12:18 AM EDT | Severe Thunderstorm Watch | SPC | Crawford, Erie | 4 hr |
| Apr 20, 2:22 AM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 3 hr |
| Apr 20, 2:45 AM EDT | Special Weather Statement | CTP | Warren | 45 min |
| Apr 20, 3:20 AM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more | 85 min |
| Apr 20, 3:28 AM EDT | Special Weather Statement | CTP | Elk, McKean | 47 min |
| Apr 20, 3:51 AM EDT | Special Weather Statement | PBZ | Mercer, Venango | 39 min |
| Apr 20, 4:02 AM EDT | Coastal Flood Statement | PHI | Delaware, Philadelphia | 58 min |
| Apr 20, 4:11 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence, Mercer | 34 min |
| Apr 20, 4:18 AM EDT | Special Weather Statement | CTP | McKean | 42 min |
| Apr 20, 4:37 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion | 38 min |
| Apr 20, 4:57 AM EDT | Special Weather Statement | PBZ | Fayette, Greene, Westmoreland | 63 min |
| Apr 20, 5:05 AM EDT | Special Weather Statement | CTP | Cameron, Elk, McKean, Warren | 40 min |
| Apr 20, 5:13 AM EDT | Special Weather Statement | PBZ | Forest, Jefferson | 47 min |
| Apr 20, 11:31 AM EDT | Wind Advisory | CLE | Crawford, Erie | 4 hr |
| Apr 20, 3:45 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Bradford, Cambria and 30 more | 30 min |
| Apr 20, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Berks, Blair, Bradford, Carbon and 29 more | 4 hr |
| Apr 20, 4:40 PM EDT | Special Weather Statement | CTP | Lycoming, Sullivan | 35 min |
| Apr 21, 2:55 PM EDT | Flash Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 53 hr |
| Apr 21, 2:59 PM EDT | Frost Advisory | CTP | Adams, Franklin, Lancaster, York | 17 hr |
| Apr 21, 3:15 PM EDT | Frost Advisory | PHI | Berks, Delaware | 17 hr |
| Apr 22, 2:51 PM EDT | Flash Flood Watch | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 30 hr |
| Apr 23, 12:52 AM EDT | Special Weather Statement | PBZ | Greene | 53 min |
| Apr 23, 2:44 AM EDT | Special Weather Statement | PBZ | Beaver, Butler | 31 min |
| Apr 23, 7:43 AM EDT | Special Weather Statement | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 2 hr |
| Apr 23, 6:00 PM EDT | Special Weather Statement | PBZ | Armstrong, Butler, Clarion, Jefferson | 60 min |
| Apr 24, 2:12 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more | 93 min |
| Apr 24, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bucks, Chester, Delaware, Lancaster, Montgomery and 2 more | 5 hr |
| Apr 24, 4:47 PM EDT | Special Weather Statement | CTP | Cumberland | 43 min |
| Apr 24, 5:17 PM EDT | Special Weather Statement | CTP | Adams, Dauphin, Lebanon, York | 28 min |
| Apr 24, 5:46 PM EDT | Special Weather Statement | CTP | Adams, Lebanon, Schuylkill, York | 29 min |
| Apr 24, 6:10 PM EDT | Mesoscale Discussion | SPC | Adams, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more | 65 min |
| Apr 24, 6:20 PM EDT | Special Weather Statement | CTP | Lancaster, York | 25 min |
| Apr 25, 12:48 PM EDT | Flood Watch | CLE | Crawford, Erie | 63 hr |
| Apr 25, 1:39 PM EDT | Special Weather Statement | PBZ | Butler | 36 min |
| Apr 25, 1:52 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Blair, Bradford, Butler and 34 more | 83 min |
| Apr 25, 1:59 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 46 min |
| Apr 25, 2:37 PM EDT | Tornado Warning | PBZ | Armstrong, Clarion, Jefferson | 23 min |
| Apr 25, 2:45 PM EDT | Special Weather Statement | CTP | Elk | 60 min |
| Apr 25, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 33 more | 7 hr |
| Apr 25, 2:59 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 30 min |
| Apr 25, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 61 min |
| Apr 25, 3:20 PM EDT | Flood Watch | BGM | Bradford | 12 hr |
| Apr 25, 4:09 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Lycoming, Potter | 66 min |
| Apr 25, 4:51 PM EDT | Special Weather Statement | CTP | Tioga | 24 min |
| Apr 25, 4:54 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 36 min |
| Apr 25, 5:03 PM EDT | Special Weather Statement | PBZ | Forest, Venango | 57 min |
| Apr 25, 5:05 PM EDT | Special Weather Statement | CTP | Warren | 40 min |
| Apr 25, 5:17 PM EDT | Special Weather Statement | CTP | Tioga | 13 min |
| Apr 25, 5:23 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 37 min |
| Apr 25, 5:24 PM EDT | Special Weather Statement | PBZ | Beaver | 51 min |
| Apr 25, 5:32 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 58 min |
| Apr 25, 5:39 PM EDT | Special Weather Statement | CTP | Tioga | 21 min |
| Apr 25, 5:50 PM EDT | Tornado Warning | PBZ | Forest | 25 min |
| Apr 25, 5:59 PM EDT | Special Weather Statement | PBZ | Allegheny | 31 min |
| Apr 25, 6:00 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 22 more | 60 min |
| Apr 25, 6:14 PM EDT | Special Weather Statement | CTP | Lycoming | 31 min |
| Apr 25, 6:25 PM EDT | Special Weather Statement | PBZ | Armstrong | 35 min |
| Apr 25, 6:28 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 32 min |
| Apr 25, 6:36 PM EDT | Special Weather Statement | PBZ | Allegheny | 24 min |
| Apr 25, 6:54 PM EDT | Special Weather Statement | CTP | Tioga | 51 min |
| Apr 25, 6:58 PM EDT | Special Weather Statement | PBZ | Jefferson | 32 min |
| Apr 25, 7:00 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 30 min |
| Apr 25, 7:23 PM EDT | Special Weather Statement | CTP | Elk, McKean | 67 min |
| Apr 25, 7:34 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Potter | 26 min |
| Apr 25, 8:06 PM EDT | Special Weather Statement | CTP | Tioga | 24 min |
| Apr 25, 8:19 PM EDT | Special Weather Statement | BGM | Bradford | 41 min |
| Apr 25, 8:22 PM EDT | Special Weather Statement | CTP | Cambria | 38 min |
| Apr 25, 8:36 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 39 min |
| Apr 25, 8:39 PM EDT | Special Weather Statement | CTP | Tioga | 21 min |
| Apr 25, 8:44 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 61 min |
| Apr 25, 8:48 PM EDT | Special Weather Statement | CTP | Clearfield, Tioga | 42 min |
| Apr 25, 9:15 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 45 min |
| Apr 25, 9:20 PM EDT | Special Weather Statement | CTP | Clinton, Tioga | 25 min |
| Apr 25, 9:48 PM EDT | Special Weather Statement | BGM | Bradford | 57 min |
| Apr 25, 9:50 PM EDT | Special Weather Statement | CTP | Clinton, Lycoming | 25 min |
| Apr 25, 10:07 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 23 min |
| Apr 25, 10:14 PM EDT | Flash Flood Warning | BGM | Bradford | 4 hr |
| Apr 25, 10:14 PM EDT | Special Weather Statement | CTP | Lycoming, Union | 31 min |
| Apr 25, 10:31 PM EDT | Special Weather Statement | CTP | Lycoming, Sullivan, Union | 29 min |
| Apr 25, 10:48 PM EDT | Areal Flood Advisory | BGM | Susquehanna | 3 hr |
| Apr 25, 10:57 PM EDT | Special Weather Statement | CTP | Montour, Sullivan, Union | 33 min |
| Apr 25, 11:18 PM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Susquehanna, Wyoming | 2 hr |
| Apr 25, 11:29 PM EDT | Special Weather Statement | CTP | Columbia, Montour | 31 min |
| Apr 25, 11:57 PM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne | 3 hr |
| Apr 26, 4:53 AM EDT | Dense Fog Advisory | CLE | Erie | 4 hr |
| Apr 26, 8:16 AM EDT | Special Weather Statement | PBZ | Clarion, Venango | 44 min |
| Apr 26, 8:47 AM EDT | Special Weather Statement | PBZ | Forest | 43 min |
| Apr 26, 8:50 AM EDT | Special Weather Statement | CTP | Warren | 40 min |
| Apr 26, 11:51 AM EDT | Special Weather Statement | CTP | McKean | 39 min |
| Apr 26, 12:55 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Butler, Washington | 35 min |
| Apr 26, 1:18 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Bedford, Blair, Bradford, Butler and 35 more | 57 min |
| Apr 26, 1:30 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler | 45 min |
| Apr 26, 1:44 PM EDT | Special Weather Statement | CTP | Centre | 46 min |
| Apr 26, 1:49 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 42 more | 7 hr |
| Apr 26, 1:58 PM EDT | Special Weather Statement | CTP | Clinton | 62 min |
| Apr 26, 2:08 PM EDT | Special Weather Statement | CTP | Somerset | 52 min |
| Apr 26, 2:15 PM EDT | Special Weather Statement | PBZ | Clarion, Forest, Venango | 60 min |
| Apr 26, 2:20 PM EDT | Special Weather Statement | PBZ | Westmoreland | 40 min |
| Apr 26, 2:32 PM EDT | Special Weather Statement | CTP | Tioga | 58 min |
| Apr 26, 2:47 PM EDT | Special Weather Statement | CTP | Clinton | 43 min |
| Apr 26, 2:47 PM EDT | Special Weather Statement | PBZ | Greene | 58 min |
| Apr 26, 2:54 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 66 min |
| Apr 26, 3:01 PM EDT | Special Weather Statement | PBZ | Indiana | 14 min |
| Apr 26, 3:02 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 43 min |
| Apr 26, 3:04 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 56 min |
| Apr 26, 3:09 PM EDT | Special Weather Statement | CTP | Cambria | 81 min |
| Apr 26, 3:21 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Somerset | 54 min |
| Apr 26, 3:28 PM EDT | Special Weather Statement | CTP | Lycoming | 77 min |
| Apr 26, 3:50 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Greene, Washington, Westmoreland | 40 min |
| Apr 26, 4:01 PM EDT | Special Weather Statement | CTP | Tioga | 29 min |
| Apr 26, 4:10 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Huntingdon | 65 min |
| Apr 26, 4:12 PM EDT | Mesoscale Discussion | SPC | Bedford, Blair, Bradford, Cambria, Cameron, Centre and 30 more | 63 min |
| Apr 26, 4:19 PM EDT | Special Weather Statement | CTP | Elk | 56 min |
| Apr 26, 4:21 PM EDT | Special Weather Statement | CTP | Potter | 39 min |
| Apr 26, 4:22 PM EDT | Special Weather Statement | CTP | Clinton | 68 min |
| Apr 26, 4:28 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 47 min |
| Apr 26, 4:32 PM EDT | Special Weather Statement | CTP | Lycoming | 43 min |
| Apr 26, 4:40 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 35 min |
| Apr 26, 4:44 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Indiana, Westmoreland | 46 min |
| Apr 26, 4:45 PM EDT | Special Weather Statement | BGM | Bradford | 60 min |
| Apr 26, 5:03 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield, Somerset | 57 min |
| Apr 26, 5:03 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Potter, Tioga | 42 min |
| Apr 26, 5:10 PM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 9 hr |
| Apr 26, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 61 min |
| Apr 26, 5:16 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 14 min |
| Apr 26, 5:25 PM EDT | Special Weather Statement | CTP | Somerset | 50 min |
| Apr 26, 5:28 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 22 min |
| Apr 26, 5:49 PM EDT | Special Weather Statement | CTP | Cameron, Clearfield | 56 min |
| Apr 26, 5:58 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Centre, Clearfield | 47 min |
| Apr 26, 6:09 PM EDT | Special Weather Statement | CTP | Potter | 21 min |
| Apr 26, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 61 min |
| Apr 26, 6:21 PM EDT | Special Weather Statement | CTP | Blair | 39 min |
| Apr 26, 6:29 PM EDT | Flash Flood Warning | BGM | Bradford | 6 hr |
| Apr 26, 6:30 PM EDT | Special Weather Statement | BGM | Bradford | 45 min |
| Apr 26, 6:30 PM EDT | Special Weather Statement | CTP | Centre | 60 min |
| Apr 26, 6:32 PM EDT | Flash Flood Warning | BGM | Bradford | 6 hr |
| Apr 26, 6:32 PM EDT | Special Weather Statement | CTP | Tioga | 13 min |
| Apr 26, 6:36 PM EDT | Special Weather Statement | CTP | Bedford | 24 min |
| Apr 26, 6:39 PM EDT | Special Weather Statement | CTP | Clinton, Tioga | 66 min |
| Apr 26, 6:44 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 50 min |
| Apr 26, 6:44 PM EDT | Areal Flood Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Lycoming, McKean and 3 more | 3 hr |
| Apr 26, 6:51 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Blair, Bradford, Cambria, Cameron and 29 more | 54 min |
| Apr 26, 6:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Juniata, Mifflin | 62 min |
| Apr 26, 7:11 PM EDT | Special Weather Statement | CTP | Bedford | 34 min |
| Apr 26, 7:12 PM EDT | Flash Flood Warning | CTP | Clinton, Lycoming, Potter, Tioga | 3 hr |
| Apr 26, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 55 min |
| Apr 26, 7:27 PM EDT | Special Weather Statement | CTP | Clinton | 33 min |
| Apr 26, 7:38 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder, Union | 67 min |
| Apr 26, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Juniata, Lycoming, Montour, Northumberland, Perry and 2 more | 68 min |
| Apr 26, 8:23 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 67 min |
| Apr 26, 8:27 PM EDT | Special Weather Statement | CTP | Bedford, Blair, Cambria, Somerset | 48 min |
| Apr 26, 8:40 PM EDT | Areal Flood Advisory | BGM | Bradford, Susquehanna | 3 hr |
| Apr 26, 8:40 PM EDT | Special Weather Statement | CTP | Lycoming, Sullivan | 50 min |
| Apr 26, 8:55 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 65 min |
| Apr 26, 8:58 PM EDT | Special Weather Statement | CTP | Bedford, Fulton, Huntingdon | 62 min |
| Apr 26, 9:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Schuylkill, Snyder and 1 more | 59 min |
| Apr 26, 9:05 PM EDT | Flash Flood Warning | BGM | Bradford, Lackawanna, Susquehanna, Wyoming | 4 hr |
| Apr 26, 9:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Wyoming | 51 min |
| Apr 26, 9:19 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 41 min |
| Apr 26, 9:35 PM EDT | Areal Flood Advisory | BGM | Lackawanna, Wayne | 4 hr |
| Apr 26, 9:45 PM EDT | Areal Flood Advisory | BGM | Lackawanna, Luzerne, Wayne, Wyoming | 4 hr |
| Apr 26, 10:01 PM EDT | Special Weather Statement | PHI | Carbon | 59 min |
| Apr 26, 10:02 PM EDT | River Flood Warning | BGM | Bradford | 5 days |
| Apr 26, 10:02 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 43 min |
| Apr 26, 10:07 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming | 68 min |
| Apr 26, 10:12 PM EDT | Special Weather Statement | CTP | Columbia, Cumberland, Dauphin, Juniata, Montour, Northumberland and 3 more | 63 min |
| Apr 26, 10:16 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Pike | 37 min |
| Apr 26, 10:43 PM EDT | Flash Flood Warning | CTP | Sullivan | 3 hr |
| Apr 26, 10:49 PM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Wayne, Wyoming | 4 hr |
| Apr 26, 10:55 PM EDT | Special Weather Statement | PHI | Monroe | 50 min |
| Apr 26, 11:10 PM EDT | Special Weather Statement | PHI | Berks | 65 min |
| Apr 26, 11:11 PM EDT | Special Weather Statement | CTP | Columbia, Dauphin, Schuylkill | 34 min |
| Apr 26, 11:23 PM EDT | Areal Flood Warning | BGM | Bradford | 6 hr |
| Apr 26, 11:34 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon | 56 min |
| Apr 26, 11:41 PM EDT | Special Weather Statement | PHI | Monroe | 64 min |
| Apr 26, 11:45 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 60 min |
| Apr 26, 11:48 PM EDT | Areal Flood Advisory | BGM | Pike | 3 hr |
| Apr 27, 12:08 AM EDT | Special Weather Statement | PHI | Monroe, Northampton | 67 min |
| Apr 27, 12:34 AM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 56 min |
| Apr 27, 1:09 AM EDT | River Flood Warning | BGM | Susquehanna | 4 days |
| Apr 27, 1:19 AM EDT | Special Weather Statement | PHI | Bucks | 56 min |
| Apr 27, 2:43 AM EDT | River Flood Warning | BGM | Wyoming | 3 days |
| Apr 27, 6:00 AM EDT | River Flood Warning | BGM | Bradford | 63 hr |
| Apr 27, 10:09 AM EDT | Flash Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 18 hr |
| Apr 27, 10:25 AM EDT | River Flood Warning | BGM | Luzerne | 3 days |
| Apr 27, 11:16 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 23 hr |
| Apr 27, 11:19 AM EDT | River Flood Warning | CTP | Columbia | 3 days |
| Apr 27, 11:25 AM EDT | Flash Flood Watch | BGM | Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more | 27 hr |
| Apr 27, 1:24 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 28 more | 96 min |
| Apr 27, 1:48 PM EDT | Special Weather Statement | PHI | Delaware, Montgomery, Philadelphia | 87 min |
| Apr 27, 2:31 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 44 min |
| Apr 27, 3:10 PM EDT | Tornado Watch | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 43 more | 7 hr |
| Apr 27, 3:18 PM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 7 more | 57 min |
| Apr 27, 3:26 PM EDT | Flash Flood Watch | PHI | Carbon, Lehigh, Monroe, Northampton | 24 hr |
| Apr 27, 3:46 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 59 min |
| Apr 27, 3:55 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more | 65 min |
| Apr 27, 3:55 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Delaware, Lehigh, Monroe and 4 more | 65 min |
| Apr 27, 4:06 PM EDT | Special Weather Statement | PBZ | Allegheny, Armstrong, Butler, Fayette, Greene, Indiana and 2 more | 54 min |
| Apr 27, 4:09 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 66 min |
| Apr 27, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana | 30 min |
| Apr 27, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Fayette, Indiana, Westmoreland | 58 min |
| Apr 27, 4:42 PM EDT | Special Weather Statement | CTP | Cameron | 48 min |
| Apr 27, 4:43 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 36 min |
| Apr 27, 4:49 PM EDT | Special Weather Statement | CTP | Elk, McKean, Warren | 41 min |
| Apr 27, 4:50 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 25 min |
| Apr 27, 4:55 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk, McKean, Potter | 50 min |
| Apr 27, 5:01 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 44 min |
| Apr 27, 5:16 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 44 min |
| Apr 27, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 26 min |
| Apr 27, 5:43 PM EDT | Special Weather Statement | CTP | Fulton | 47 min |
| Apr 27, 5:43 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more | 62 min |
| Apr 27, 5:52 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Fulton, Huntingdon, Juniata, Mifflin and 1 more | 53 min |
| Apr 27, 5:57 PM EDT | Tornado Warning | CTP | Franklin, Fulton, Huntingdon | 33 min |
| Apr 27, 5:59 PM EDT | Tornado Warning | CTP | Cameron, Potter | 31 min |
| Apr 27, 6:29 PM EDT | Tornado Warning | CTP | Cumberland, Franklin, Perry | 31 min |
| Apr 27, 6:30 PM EDT | Tornado Warning | CTP | Potter, Tioga | 30 min |
| Apr 27, 6:40 PM EDT | Tornado Warning | CTP | Centre, Clinton, Mifflin, Union | 35 min |
| Apr 27, 6:45 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 6 more | 60 min |
| Apr 27, 6:50 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Blair, Bradford, Cameron, Carbon and 33 more | 55 min |
| Apr 27, 7:07 PM EDT | Areal Flood Advisory | CTP | Cameron, Centre, Clearfield, Clinton, Elk, McKean and 2 more | 3 hr |
| Apr 27, 7:12 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Snyder | 63 min |
| Apr 27, 7:48 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 5 more | 57 min |
| Apr 27, 7:50 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 55 min |
| Apr 27, 8:09 PM EDT | Tornado Warning | CTP | Lycoming, Sullivan | 26 min |
| Apr 27, 8:15 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bradford, Bucks, Carbon, Chester, Delaware and 11 more | 8 hr |
| Apr 27, 8:22 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 53 min |
| Apr 27, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 53 min |
| Apr 27, 8:33 PM EDT | Flash Flood Warning | BGM | Bradford | 2 hr |
| Apr 27, 8:46 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 44 min |
| Apr 27, 9:02 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 43 min |
| Apr 27, 9:03 PM EDT | Mesoscale Discussion | SPC | Adams, Bradford, Columbia, Cumberland, Dauphin, Juniata and 9 more | 57 min |
| Apr 27, 9:09 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Susquehanna, Wyoming | 51 min |
| Apr 27, 9:14 PM EDT | Special Weather Statement | CTP | York | 31 min |
| Apr 27, 9:32 PM EDT | Wind Advisory | CLE | Crawford, Erie | 6 hr |
| Apr 27, 9:32 PM EDT | Special Weather Statement | CTP | Sullivan | 28 min |
| Apr 27, 9:40 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 41 min |
| Apr 27, 10:36 PM EDT | Severe Thunderstorm Warning | BGM | Wayne | 54 min |
| Apr 27, 10:38 PM EDT | Special Weather Statement | CTP | Cambria | 37 min |
| Apr 27, 10:45 PM EDT | Mesoscale Discussion | SPC | Blair, Bradford, Cambria, Carbon, Centre, Clinton and 23 more | 60 min |
| Apr 27, 10:52 PM EDT | Special Weather Statement | CTP | Clearfield | 23 min |
| Apr 27, 11:09 PM EDT | Special Weather Statement | CTP | Clinton | 36 min |
| Apr 27, 11:19 PM EDT | Special Weather Statement | CTP | Cambria, Centre, Clearfield | 41 min |
| Apr 27, 11:25 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton | 37 min |
| Apr 27, 11:50 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bedford, Blair, Cambria, Cameron, Centre and 26 more | 7 hr |
| Apr 27, 11:59 PM EDT | Special Weather Statement | CTP | Clinton, Lycoming | 46 min |
| Apr 28, 12:14 AM EDT | Special Weather Statement | CTP | Cambria | 31 min |
| Apr 28, 12:19 AM EDT | Special Weather Statement | CTP | Centre, Clinton | 41 min |
| Apr 28, 12:26 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 64 min |
| Apr 28, 12:33 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 57 min |
| Apr 28, 12:44 AM EDT | Special Weather Statement | CTP | Centre | 31 min |
| Apr 28, 1:02 AM EDT | Special Weather Statement | CTP | Lycoming | 43 min |
| Apr 28, 1:21 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Huntingdon, Mifflin | 39 min |
| Apr 28, 1:22 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 53 min |
| Apr 28, 1:29 AM EDT | Special Weather Statement | CTP | Clinton | 31 min |
| Apr 28, 1:35 AM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 25 min |
| Apr 28, 1:42 AM EDT | Flash Flood Warning | CTP | Cameron, Clinton, Lycoming, Potter, Sullivan, Tioga | 4 hr |
| Apr 28, 1:42 AM EDT | Special Weather Statement | CTP | Fulton | 33 min |
| Apr 28, 1:44 AM EDT | Flash Flood Warning | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 4 hr |
| Apr 28, 1:58 AM EDT | Special Weather Statement | CTP | Clinton | 47 min |
| Apr 28, 2:03 AM EDT | Special Weather Statement | CTP | Mifflin | 42 min |
| Apr 28, 2:11 AM EDT | Special Weather Statement | BGM | Bradford | 64 min |
| Apr 28, 2:13 AM EDT | Severe Thunderstorm Warning | BGM | Bradford | 47 min |
| Apr 28, 2:19 AM EDT | Special Weather Statement | CTP | Huntingdon | 41 min |
| Apr 28, 2:20 AM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Berks, Blair, Bradford, Carbon and 31 more | 55 min |
| Apr 28, 2:26 AM EDT | Special Weather Statement | CTP | Franklin | 34 min |
| Apr 28, 2:30 AM EDT | Special Weather Statement | CTP | Clinton | 30 min |
| Apr 28, 2:42 AM EDT | Special Weather Statement | CTP | Clinton | 33 min |
| Apr 28, 2:52 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Cumberland, Franklin, Juniata, Mifflin and 3 more | 53 min |
| Apr 28, 2:55 AM EDT | Areal Flood Advisory | CTP | Centre, Franklin, Juniata, Mifflin, Perry, Snyder and 1 more | 3 hr |
| Apr 28, 3:00 AM EDT | Flash Flood Warning | BGM | Bradford | 10 hr |
| Apr 28, 3:02 AM EDT | Flash Flood Warning | CTP | Centre | 3 hr |
| Apr 28, 3:03 AM EDT | Special Weather Statement | CTP | Lycoming, Tioga | 42 min |
| Apr 28, 3:11 AM EDT | Special Weather Statement | CTP | Adams, Franklin | 34 min |
| Apr 28, 3:29 AM EDT | Flash Flood Warning | BGM | Bradford | 10 hr |
| Apr 28, 3:32 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bradford, Bucks, Carbon, Chester and 25 more | 28 min |
| Apr 28, 3:34 AM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
| Apr 28, 3:37 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Dauphin, Juniata, Lycoming, Montour and 4 more | 38 min |
| Apr 28, 3:39 AM EDT | Areal Flood Advisory | CTP | Adams, Cumberland, Dauphin, Montour, Northumberland, York | 3 hr |
| Apr 28, 3:41 AM EDT | Special Weather Statement | CTP | Lycoming | 34 min |
| Apr 28, 3:46 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 44 min |
| Apr 28, 3:51 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 54 min |
| Apr 28, 3:55 AM EDT | High Wind Warning | CLE | Crawford, Erie | 6 hr |
| Apr 28, 4:00 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 1 more | 60 min |
| Apr 28, 4:05 AM EDT | Severe Thunderstorm Watch | SPC | Berks, Bradford, Bucks, Carbon, Chester, Delaware and 11 more | 6 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | BGM | Bradford | 25 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | CTP | Lycoming | 41 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | CTP | Lycoming, Northumberland, Union | 35 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | CTP | Northumberland, Union | 41 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | CTP | Northumberland, Union | 41 hr |
| Apr 28, 4:12 AM EDT | River Flood Warning | CTP | Columbia, Montour, Northumberland | 65 hr |
| Apr 28, 4:21 AM EDT | Severe Thunderstorm Warning | BGM | Luzerne, Susquehanna, Wyoming | 54 min |
| Apr 28, 4:23 AM EDT | Flash Flood Warning | BGM | Lackawanna, Luzerne, Susquehanna, Wyoming | 9 hr |
| Apr 28, 4:24 AM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Northampton | 66 min |
| Apr 28, 4:25 AM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Dauphin, Perry, York | 7 hr |
| Apr 28, 4:28 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Schuylkill and 1 more | 47 min |
| Apr 28, 4:36 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 54 min |
| Apr 28, 4:47 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming | 43 min |
| Apr 28, 5:14 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, York | 46 min |
| Apr 28, 5:22 AM EDT | Wind Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 5 more | 6 hr |
| Apr 28, 5:23 AM EDT | Flash Flood Warning | BGM | Pike, Wayne | 9 hr |
| Apr 28, 5:31 AM EDT | Special Weather Statement | PHI | Carbon, Monroe | 59 min |
| Apr 28, 5:35 AM EDT | Tornado Warning | CTP | Adams, Cumberland, York | 25 min |
| Apr 28, 5:39 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Pike, Susquehanna, Wayne | 66 min |
| Apr 28, 5:46 AM EDT | Tornado Warning | BGM | Susquehanna, Wayne | 44 min |
| Apr 28, 5:49 AM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 56 min |
| Apr 28, 5:49 AM EDT | Special Weather Statement | PHI | Carbon | 56 min |
| Apr 28, 5:58 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| Apr 28, 6:05 AM EDT | River Flood Warning | BGM | Bradford | 8 hr |
| Apr 28, 6:12 AM EDT | Special Weather Statement | PHI | Chester, Delaware, Philadelphia | 63 min |
| Apr 28, 6:13 AM EDT | Flash Flood Warning | CTP | Lebanon, Schuylkill | 4 hr |
| Apr 28, 6:18 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 57 min |
| Apr 28, 6:21 AM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lackawanna and 7 more | 54 min |
| Apr 28, 6:23 AM EDT | Special Weather Statement | PHI | Berks, Chester, Lehigh, Montgomery | 52 min |
| Apr 28, 6:32 AM EDT | Wind Advisory | CTP | Cambria, Cameron, Clearfield, Elk, McKean, Potter and 2 more | 5 hr |
| Apr 28, 6:47 AM EDT | Areal Flood Advisory | CTP | Columbia, Franklin, Fulton, Huntingdon, Juniata, Lycoming and 7 more | 3 hr |
| Apr 28, 6:48 AM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 42 min |
| Apr 28, 6:53 AM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 37 min |
| Apr 28, 6:56 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 34 min |
| Apr 28, 6:57 AM EDT | High Wind Warning | PBZ | Beaver, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more | 5 hr |
| Apr 28, 7:06 AM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 6 hr |
| Apr 28, 7:11 AM EDT | Special Weather Statement | CTP | Columbia, Montour, Northumberland, Sullivan | 49 min |
| Apr 28, 7:35 AM EDT | Special Weather Statement | PHI | Bucks | 55 min |
| Apr 28, 7:41 AM EDT | River Flood Warning | CTP | Clinton | 20 hr |
| Apr 28, 7:50 AM EDT | Special Weather Statement | CTP | Dauphin | 25 min |
| Apr 28, 7:54 AM EDT | Special Weather Statement | CTP | Lebanon, York | 36 min |
| Apr 28, 7:59 AM EDT | Special Weather Statement | CTP | York | 46 min |
| Apr 28, 8:04 AM EDT | Special Weather Statement | CTP | Adams | 26 min |
| Apr 28, 8:07 AM EDT | River Flood Warning | CTP | Cumberland, York | 24 hr |
| Apr 28, 8:16 AM EDT | Special Weather Statement | BGM | Lackawanna, Luzerne | 59 min |
| Apr 28, 8:17 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 58 min |
| Apr 28, 8:17 AM EDT | Special Weather Statement | PHI | Berks | 58 min |
| Apr 28, 8:21 AM EDT | Tornado Warning | CTP | York | 24 min |
| Apr 28, 8:22 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 38 min |
| Apr 28, 8:44 AM EDT | Tornado Warning | CTP | Lancaster, York | 14 min |
| Apr 28, 8:54 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 66 min |
| Apr 28, 8:55 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Susquehanna, Wayne | 50 min |
| Apr 28, 8:55 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 65 min |
| Apr 28, 8:59 AM EDT | Areal Flood Advisory | PHI | Berks, Lehigh | 4 hr |
| Apr 28, 9:11 AM EDT | Special Weather Statement | PHI | Carbon, Monroe | 49 min |
| Apr 28, 9:23 AM EDT | Severe Thunderstorm Warning | BGM | Wayne | 37 min |
| Apr 28, 9:27 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne | 48 min |
| Apr 28, 9:30 AM EDT | Tornado Warning | CTP | Lancaster, York | 15 min |
| Apr 28, 9:33 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 57 min |
| Apr 28, 9:45 AM EDT | Severe Thunderstorm Watch | SPC | Bucks, Chester, Delaware, Monroe, Montgomery, Northampton and 1 more | 6 hr |
| Apr 28, 9:55 AM EDT | Wind Advisory | CLE | Crawford, Erie | 6 hr |
| Apr 28, 9:58 AM EDT | Severe Thunderstorm Warning | BGM | Pike, Wayne | 47 min |
| Apr 28, 9:58 AM EDT | Tornado Warning | CTP | York | 21 min |
| Apr 28, 10:00 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 60 min |
| Apr 28, 10:03 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 27 min |
| Apr 28, 10:12 AM EDT | Severe Thunderstorm Warning | BGM | Pike | 48 min |
| Apr 28, 10:13 AM EDT | Tornado Warning | CTP | Lancaster, York | 32 min |
| Apr 28, 10:25 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 50 min |
| Apr 28, 10:26 AM EDT | River Flood Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Union | 45 hr |
| Apr 28, 10:26 AM EDT | River Flood Warning | CTP | Cumberland, Dauphin, Juniata, Lancaster, Northumberland, Perry and 2 more | 48 hr |
| Apr 28, 10:26 AM EDT | River Flood Warning | CTP | Lancaster, York | 63 hr |
| Apr 28, 10:26 AM EDT | River Flood Warning | CTP | Huntingdon | 11 hr |
| Apr 28, 10:35 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 10 min |
| Apr 28, 10:48 AM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Montgomery, Northampton | 3 hr |
| Apr 28, 10:49 AM EDT | Special Weather Statement | CTP | Lancaster | 26 min |
| Apr 28, 10:57 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 63 min |
| Apr 28, 10:58 AM EDT | Tornado Warning | PHI | Bucks, Northampton | 32 min |
| Apr 28, 11:11 AM EDT | Severe Thunderstorm Warning | PHI | Northampton | 64 min |
| Apr 28, 11:15 AM EDT | Special Weather Statement | CTP | Lancaster | 15 min |
| Apr 28, 11:49 AM EDT | Mesoscale Discussion | SPC | Bucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 4 more | 56 min |
| Apr 28, 12:03 PM EDT | Special Weather Statement | PHI | Montgomery, Philadelphia | 57 min |
| Apr 28, 12:11 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery | 31 min |
| Apr 28, 12:42 PM EDT | Special Weather Statement | PHI | Delaware | 63 min |
| Apr 28, 12:45 PM EDT | Special Weather Statement | PHI | Bucks, Delaware, Montgomery, Philadelphia | 60 min |
| Apr 28, 12:52 PM EDT | River Flood Warning | CTP | Lycoming | 15 hr |
| Apr 28, 1:23 PM EDT | Areal Flood Advisory | PHI | Philadelphia | 103 min |
| Apr 28, 2:16 PM EDT | River Flood Warning | BGM | Wyoming | 15 hr |
| Apr 28, 5:55 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 10 hr |
| Apr 28, 8:04 PM EDT | Flash Flood Warning | BGM | Luzerne | 6 hr |
| Apr 29, 1:29 PM EDT | Frost Advisory | CTP | Cumberland, Dauphin, Juniata, Lebanon, Mifflin, Northumberland and 4 more | 16 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 | 131 |
| Tornado Warning | 18 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 200 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 27 |
| River Flood Warning | 41 |
| Flash Flood Watch | 9 |
| Flood Watch | 6 |
| Areal Flood Advisory | 23 |
| River Flood Advisory | 4 |
| Winter | |
| Winter Weather Advisory | 3 |
| Cold | |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 5 |
| Wind Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Warning | 2 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 1 |
| Coastal Flood Statement | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lycoming County61
- York County58
- Clinton County57
- Bradford County55
- Dauphin County53
- Centre County49
- Tioga County47
- Lancaster County47
- Huntingdon County46
- Cumberland County46
- Delaware County46
- Adams County45
- Cambria County42
- Northumberland County42
- Perry County42
- Juniata County42
- Blair County41
- Union County41
- Susquehanna County41
- Sullivan County40
- Snyder County39
- Lebanon County38
- Berks County38
- Philadelphia County38
- Franklin County38
- Potter County37
- Columbia County37
- Wayne County37
- Monroe County36
- Montour County36
- Mifflin County36
- Chester County36
- Lehigh County36
- Montgomery County36
- Northampton County36
- Schuylkill County36
- Wyoming County35
- Westmoreland County34
- Clearfield County34
- Luzerne County34
27 more counties
- Greene County33
- McKean County33
- Bucks County33
- Bedford County32
- Fulton County32
- Butler County32
- Cameron County32
- Lackawanna County32
- Carbon County31
- Allegheny County31
- Elk County31
- Fayette County31
- Somerset County30
- Washington County29
- Armstrong County27
- Clarion County26
- Jefferson County26
- Beaver County25
- Pike County25
- Forest County24
- Indiana County23
- Venango County21
- Warren County21
- Mercer County19
- Lawrence County18
- Erie County15
- Crawford County15
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.