Weather alerts in Pennsylvania, 2004

1,031 weather alerts in 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 2004. Tap one for its archive.

Alerts: 1,031
Warnings: 813
Watches: 52
Advisories: 0
Busiest month: May309 alerts
Busiest day: June 17, 200452 alerts

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 4, 6:39 PM EST	Mesoscale Discussion	SPC	Bradford, Crawford, McKean, Potter, Tioga, Warren	6 hr
Jan 14, 3:45 PM EST	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bedford, Butler, Cambria and 16 more	5 hr
Jan 14, 6:43 PM EST	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Columbia, Cumberland and 19 more	6 hr
Jan 17, 1:22 PM EST	Mesoscale Discussion	SPC	Greene	5 hr
Jan 17, 8:40 PM EST	Mesoscale Discussion	SPC	York	6 hr
Jan 25, 6:06 PM EST	Mesoscale Discussion	SPC	Allegheny, Bedford, Fayette, Fulton, Greene, Somerset and 2 more	4 hr
Jan 25, 11:25 PM EST	Mesoscale Discussion	SPC	Delaware, Philadelphia	2 hr
Jan 27, 3:36 AM EST	Mesoscale Discussion	SPC	Crawford, Erie, Mercer, Warren	4 hr
Jan 27, 7:40 AM EST	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 7 more	4 hr
Jan 27, 10:01 AM EST	Mesoscale Discussion	SPC	Adams, Bedford, Blair, Cambria, Cameron, Centre and 23 more	4 hr
Jan 27, 5:28 PM EST	Mesoscale Discussion	SPC	Berks, Bradford, Bucks, Carbon, Chester, Columbia and 17 more	5 hr
Feb 2, 8:58 PM EST	Mesoscale Discussion	SPC	Bedford, Somerset, Westmoreland	5 hr
Feb 3, 4:28 AM EST	Mesoscale Discussion	SPC	Allegheny, Armstrong, Bedford, Blair, Bradford, Butler and 30 more	3 hr
Feb 3, 11:45 AM EST	Mesoscale Discussion	SPC	Bradford, Carbon, Lackawanna, Luzerne, Monroe, Northampton and 5 more	6 hr
Feb 3, 12:12 PM EST	Flash Flood Warning	PBZ	Washington	4 hr
Feb 3, 3:03 PM EST	Flash Flood Warning	PBZ	Westmoreland	3 hr
Feb 5, 11:16 AM EST	Mesoscale Discussion	SPC	Greene, Washington	6 hr
Feb 5, 4:41 PM EST	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 29 more	6 hr
Feb 6, 12:04 AM EST	Mesoscale Discussion	SPC	Adams, Armstrong, Bedford, Berks, Blair, Butler and 41 more	6 hr
Feb 6, 8:03 AM EST	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Bucks, Carbon, Chester and 30 more	5 hr
Mar 2, 3:49 PM EST	Flash Flood Warning	CTP	Tioga	116 min
Mar 5, 7:37 PM EST	Severe Thunderstorm Warning	PBZ	Fayette	38 min
Mar 5, 7:53 PM EST	Severe Thunderstorm Warning	CTP	Somerset	67 min
Mar 5, 8:30 PM EST	Severe Thunderstorm Warning	CTP	Bedford, Blair	60 min
Mar 6, 4:45 PM EST	Special Marine Warning	PHI		60 min
Mar 6, 4:45 PM EST	Special Marine Warning	PHI		60 min
Mar 6, 4:53 PM EST	Special Marine Warning	PHI		52 min
Mar 7, 8:24 PM EST	Special Marine Warning	PHI		96 min
Mar 16, 5:14 AM EST	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 24 more	5 hr
Mar 16, 8:17 AM EST	Mesoscale Discussion	SPC	Berks, Carbon, Columbia, Lackawanna, Lebanon, Lehigh and 8 more	5 hr
Mar 18, 6:08 PM EST	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 22 more	5 hr
Apr 18, 2:17 PM EDT	Mesoscale Discussion	SPC	Susquehanna, Wayne	118 min
Apr 19, 7:35 PM EDT	Severe Thunderstorm Warning	CTP	Warren	40 min
Apr 19, 8:15 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	60 min
Apr 19, 8:23 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	52 min
Apr 19, 8:26 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	64 min
Apr 21, 12:48 PM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Clarion, Crawford, Erie, Forest and 5 more	2 hr
Apr 21, 7:56 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	49 min
Apr 25, 11:42 AM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	2 hr
Apr 25, 9:41 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	64 min
Apr 25, 10:05 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	40 min
Apr 25, 10:17 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	58 min
Apr 27, 5:17 PM EDT	Special Marine Warning	PHI		58 min
Apr 27, 6:05 PM EDT	Special Marine Warning	PHI		55 min
Apr 27, 6:24 PM EDT	Special Marine Warning	PHI		66 min
Apr 27, 6:24 PM EDT	Special Marine Warning	PHI		66 min
May 1, 12:56 PM EDT	Mesoscale Discussion	SPC	Bradford, Lackawanna, Lycoming, Sullivan, Susquehanna, Tioga and 1 more	2 hr
May 1, 2:48 PM EDT	Mesoscale Discussion	SPC	Beaver, Lawrence	117 min
May 1, 7:13 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	62 min
May 2, 1:21 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Blair, Bradford, Cambria, Cameron and 21 more	114 min
May 2, 3:20 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Blair, Bradford, Centre, Clinton and 17 more	6 hr
May 2, 5:48 PM EDT	Mesoscale Discussion	SPC	Adams, Bradford, Columbia, Cumberland, Dauphin, Franklin and 12 more	117 min
May 2, 5:56 PM EDT	Severe Thunderstorm Warning	CTP	Union	19 min
May 2, 6:05 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
May 2, 6:40 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	50 min
May 2, 6:49 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne, Wyoming	56 min
May 2, 6:54 PM EDT	Mesoscale Discussion	SPC	Lackawanna, Luzerne, Monroe, Pike, Susquehanna, Wayne and 1 more	96 min
May 2, 7:30 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	30 min
May 5, 1:48 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Chester, Cumberland, Dauphin, Franklin and 6 more	2 hr
May 6, 11:05 PM EDT	Mesoscale Discussion	SPC	Clarion, Crawford, Erie, Forest, Lawrence, McKean and 3 more	85 min
May 6, 11:06 PM EDT	Severe Thunderstorm Warning	CLE	Erie	54 min
May 6, 11:20 PM EDT	Severe Thunderstorm Watch	SPC	Armstrong, Beaver, Butler, Clarion, Clearfield, Crawford and 9 more	5 hr
May 6, 11:59 PM EDT	Severe Thunderstorm Warning	CTP	Potter	31 min
May 7, 12:22 AM EDT	Severe Thunderstorm Warning	CTP	Tioga	53 min
May 7, 3:13 AM EDT	Mesoscale Discussion	SPC	Armstrong, Beaver, Butler, Clarion, Clearfield, Crawford and 9 more	62 min
May 7, 3:47 AM EDT	Severe Thunderstorm Warning	CLE	Erie	28 min
May 7, 9:26 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver	49 min
May 7, 9:36 AM EDT	Severe Thunderstorm Warning	PBZ	Butler	24 min
May 7, 9:53 AM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	67 min
May 7, 10:29 AM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Beaver, Bedford, Blair, Cambria and 14 more	91 min
May 7, 10:39 AM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	66 min
May 7, 11:00 AM EDT	Severe Thunderstorm Warning	CTP	Cambria	30 min
May 7, 11:00 AM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Blair, Cumberland, Dauphin, Fayette and 12 more	6 hr
May 7, 11:16 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	29 min
May 7, 11:42 AM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	33 min
May 7, 11:49 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	41 min
May 7, 12:12 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin	63 min
May 7, 12:37 PM EDT	Severe Thunderstorm Warning	CTP	Adams	53 min
May 7, 1:04 PM EDT	Severe Thunderstorm Warning	CTP	York	71 min
May 7, 1:24 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	96 min
May 7, 1:40 PM EDT	Severe Thunderstorm Watch	SPC	Chester, Delaware, Montgomery, Philadelphia	3 hr
May 7, 1:49 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	56 min
May 7, 1:49 PM EDT	Mesoscale Discussion	SPC	Bedford, Fayette, Franklin, Fulton, Greene, Huntingdon and 3 more	86 min
May 7, 1:58 PM EDT	Severe Thunderstorm Warning	PHI	Chester	77 min
May 7, 3:10 PM EDT	Special Marine Warning	PHI		80 min
May 8, 6:28 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 14 more	3 hr
May 8, 7:17 PM EDT	Severe Thunderstorm Warning	CLE	Erie	58 min
May 8, 7:52 PM EDT	Severe Thunderstorm Warning	CTP	Warren	38 min
May 8, 8:16 PM EDT	Severe Thunderstorm Warning	CLE	Erie	59 min
May 8, 8:35 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	40 min
May 8, 10:54 PM EDT	Severe Thunderstorm Warning	CLE	Erie	66 min
May 9, 12:12 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Franklin, Fulton	3 hr
May 9, 1:43 PM EDT	Mesoscale Discussion	SPC	Armstrong, Berks, Blair, Cambria, Cameron, Carbon and 24 more	2 hr
May 9, 7:09 PM EDT	Severe Thunderstorm Warning	CTP	York	51 min
May 9, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester	61 min
May 9, 7:17 PM EDT	Severe Thunderstorm Warning	PHI	Chester	58 min
May 9, 7:23 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	52 min
May 9, 8:08 PM EDT	Mesoscale Discussion	SPC	Adams, Chester, Cumberland, Dauphin, Delaware, Lancaster and 2 more	2 hr
May 9, 9:20 PM EDT	Flash Flood Warning	CTP	York	3 hr
May 10, 12:09 AM EDT	Flash Flood Warning	CTP	York	3 hr
May 10, 12:04 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Beaver, Bedford, Blair, Butler and 21 more	2 hr
May 10, 3:14 PM EDT	Mesoscale Discussion	SPC	Clarion, Crawford, Elk, Forest, Lawrence, McKean and 5 more	3 hr
May 10, 3:59 PM EDT	Severe Thunderstorm Warning	CLE	Erie	61 min
May 10, 4:36 PM EDT	Flash Flood Warning	CLE	Erie	3 hr
May 10, 4:58 PM EDT	Severe Thunderstorm Warning	CLE	Erie	62 min
May 10, 5:31 PM EDT	Severe Thunderstorm Warning	CTP	Warren	59 min
May 10, 5:41 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	64 min
May 10, 6:39 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	51 min
May 10, 6:43 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	62 min
May 10, 6:54 PM EDT	Severe Thunderstorm Warning	CTP	McKean	66 min
May 10, 7:04 PM EDT	Severe Thunderstorm Warning	CTP	Elk	56 min
May 10, 7:06 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	39 min
May 10, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	Warren	37 min
May 10, 7:47 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	43 min
May 10, 11:08 PM EDT	Mesoscale Discussion	SPC	Carbon, Monroe, Northampton	3 hr
May 10, 11:47 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	28 min
May 11, 11:53 AM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Lackawanna, Lehigh, Luzerne and 4 more	3 hr
May 11, 4:59 PM EDT	Flash Flood Warning	PBZ	Greene	3 hr
May 11, 5:00 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	60 min
May 12, 12:52 PM EDT	Flash Flood Warning	BGM	Pike	113 min
May 12, 1:12 PM EDT	Flash Flood Warning	BGM	Wayne	2 hr
May 12, 1:37 PM EDT	Flash Flood Warning	BGM	Wyoming	113 min
May 12, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Union	45 min
May 12, 4:38 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	67 min
May 12, 6:01 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	59 min
May 12, 6:22 PM EDT	Flash Flood Warning	BGM	Pike	113 min
May 12, 7:00 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	45 min
May 12, 8:04 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	41 min
May 13, 12:50 PM EDT	Flash Flood Warning	BGM	Bradford	115 min
May 13, 1:53 PM EDT	Flash Flood Warning	BGM	Bradford	2 hr
May 15, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	63 min
May 15, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	29 min
May 15, 5:30 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	60 min
May 15, 6:05 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 8 more	85 min
May 15, 6:16 PM EDT	Severe Thunderstorm Warning	CTP	Juniata	59 min
May 15, 6:41 PM EDT	Severe Thunderstorm Warning	CTP	Perry	64 min
May 15, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	44 min
May 15, 7:07 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	53 min
May 15, 7:52 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	38 min
May 15, 8:32 PM EDT	Severe Thunderstorm Warning	CTP	Adams	43 min
May 15, 8:32 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	43 min
May 15, 8:35 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	40 min
May 15, 8:39 PM EDT	Flash Flood Warning	PHI	Berks, Lehigh, Northampton	116 days
May 15, 8:52 PM EDT	Severe Thunderstorm Warning	CTP	York	53 min
May 15, 10:56 PM EDT	Special Marine Warning	PHI		109 min
May 15, 11:19 PM EDT	Special Marine Warning	PHI		86 min
May 17, 3:01 PM EDT	Severe Thunderstorm Warning	CTP	York	59 min
May 17, 5:36 PM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	124 days
May 17, 6:45 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	45 min
May 17, 6:50 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Forest, Lawrence, Mercer, Venango and 1 more	85 min
May 17, 6:59 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	61 min
May 17, 7:26 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	64 min
May 17, 8:09 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	66 min
May 17, 8:37 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	53 min
May 17, 8:46 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	59 min
May 17, 9:02 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	58 min
May 17, 11:54 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	66 min
May 18, 12:54 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 22 more	66 min
May 18, 1:04 PM EDT	Mesoscale Discussion	SPC	Bradford, Lackawanna, Luzerne, Sullivan, Susquehanna, Wayne and 1 more	56 min
May 18, 1:45 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	6 hr
May 18, 1:50 PM EDT	Severe Thunderstorm Watch	SPC	Bradford, Cameron, Elk, Jefferson, McKean, Potter and 2 more	8 hr
May 18, 2:16 PM EDT	Severe Thunderstorm Warning	CTP	Warren	59 min
May 18, 2:45 PM EDT	Flash Flood Warning	PBZ	Allegheny	3 hr
May 18, 2:51 PM EDT	Flash Flood Warning	PBZ	Westmoreland	3 hr
May 18, 2:54 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 33 more	96 min
May 18, 2:59 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	61 min
May 18, 3:06 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	39 min
May 18, 3:25 PM EDT	Flash Flood Warning	PBZ	Indiana	3 hr
May 18, 4:18 PM EDT	Flash Flood Warning	PBZ	Fayette	3 hr
May 18, 4:21 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	54 min
May 18, 4:45 PM EDT	Flash Flood Warning	PBZ	Greene	3 hr
May 18, 4:46 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	59 min
May 18, 4:52 PM EDT	Flash Flood Warning	CTP	Somerset	3 hr
May 18, 5:02 PM EDT	Severe Thunderstorm Warning	CTP	Perry	28 min
May 18, 5:26 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	64 min
May 18, 6:18 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	57 min
May 18, 6:23 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	67 min
May 18, 6:24 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	66 min
May 18, 6:24 PM EDT	Mesoscale Discussion	SPC	Bradford, Cameron, Elk, Jefferson, McKean, Potter and 2 more	2 hr
May 18, 6:33 PM EDT	Flash Flood Warning	PBZ	Butler	3 hr
May 18, 6:34 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	56 min
May 18, 6:53 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	37 min
May 18, 7:04 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	56 min
May 18, 7:09 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more	96 min
May 18, 7:17 PM EDT	Flash Flood Warning	PBZ	Jefferson	3 hr
May 18, 7:31 PM EDT	Flash Flood Warning	CTP	Clearfield	119 min
May 18, 7:49 PM EDT	Mesoscale Discussion	SPC	Chester, Delaware, Lancaster, Montgomery, Philadelphia, York	2 hr
May 18, 8:06 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	39 min
May 18, 8:11 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	34 min
May 18, 8:32 PM EDT	Severe Thunderstorm Warning	PHI	Chester	43 min
May 18, 11:53 PM EDT	Flash Flood Warning	CTP	Somerset	3 hr
May 19, 2:52 AM EDT	Mesoscale Discussion	SPC	Chester, Delaware, Lancaster, Montgomery, Philadelphia, York	3 hr
May 20, 6:25 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Cambria, Clarion and 13 more	95 min
May 20, 7:16 PM EDT	Tornado Warning	CLE	Crawford	29 min
May 20, 7:54 PM EDT	Flash Flood Warning	CLE	Crawford	2 hr
May 20, 7:58 PM EDT	Flash Flood Warning	PBZ	Venango	3 hr
May 20, 8:16 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	59 min
May 20, 8:37 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	53 min
May 20, 10:34 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	41 min
May 20, 10:39 PM EDT	Tornado Warning	PBZ	Jefferson	36 min
May 20, 10:47 PM EDT	Severe Thunderstorm Warning	CLE	Erie	58 min
May 20, 10:51 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	54 min
May 20, 11:11 PM EDT	Tornado Warning	CLE	Erie	34 min
May 20, 11:13 PM EDT	Flash Flood Warning	PBZ	Jefferson	3 hr
May 20, 11:18 PM EDT	Severe Thunderstorm Warning	CTP	Warren	72 min
May 20, 11:48 PM EDT	Flash Flood Warning	CTP	Clearfield	6 hr
May 21, 2:17 AM EDT	Severe Thunderstorm Warning	CLE	Erie	28 min
May 21, 2:40 AM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Lawrence, Mercer	65 min
May 21, 2:55 AM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	35 min
May 21, 3:27 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer	63 min
May 21, 4:04 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Lawrence	56 min
May 21, 4:06 AM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	54 min
May 21, 4:27 AM EDT	Severe Thunderstorm Warning	PBZ	Butler	63 min
May 21, 4:36 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver	54 min
May 21, 4:45 AM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 4 more	60 min
May 21, 4:54 AM EDT	Flash Flood Warning	CTP	Clearfield	4 hr
May 21, 5:00 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	75 min
May 21, 5:19 AM EDT	Flash Flood Warning	CTP	Warren	4 hr
May 21, 5:33 AM EDT	Severe Thunderstorm Warning	PBZ	Greene	72 min
May 21, 5:45 AM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	75 min
May 21, 5:57 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette	78 min
May 21, 6:29 AM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	61 min
May 21, 6:31 AM EDT	Flash Flood Warning	CTP	Blair	4 hr
May 21, 6:50 AM EDT	Flash Flood Warning	CLE	Crawford	115 min
May 21, 7:11 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	49 min
May 21, 8:45 AM EDT	Severe Thunderstorm Warning	PBZ	Greene	45 min
May 21, 2:19 PM EDT	Mesoscale Discussion	SPC	Beaver, Crawford, Erie, Lawrence, Mercer	116 min
May 21, 3:15 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 17 more	6 hr
May 21, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	66 min
May 21, 5:15 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	75 min
May 21, 5:23 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	67 min
May 21, 5:41 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Venango	64 min
May 21, 5:50 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	55 min
May 21, 6:16 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion	59 min
May 21, 6:27 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	63 min
May 21, 6:29 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	61 min
May 21, 6:44 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	61 min
May 21, 6:47 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	58 min
May 21, 6:52 PM EDT	Flash Flood Warning	PBZ	Greene	3 hr
May 21, 6:53 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Bedford, Berks, Blair and 47 more	97 min
May 21, 6:55 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield, Somerset	80 min
May 21, 7:28 PM EDT	Flash Flood Warning	PBZ	Fayette	3 hr
May 21, 7:30 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	60 min
May 22, 1:16 AM EDT	Flash Flood Warning	PBZ	Lawrence, Mercer	3 hr
May 22, 2:12 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	63 min
May 22, 2:25 AM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more	2 hr
May 22, 2:38 AM EDT	Flash Flood Warning	PBZ	Butler, Venango	3 hr
May 22, 2:50 AM EDT	Severe Thunderstorm Warning	PBZ	Butler	25 min
May 22, 3:19 AM EDT	Flash Flood Warning	PBZ	Beaver	3 hr
May 22, 4:13 AM EDT	Flash Flood Warning	PBZ	Allegheny	3 hr
May 22, 7:55 AM EDT	Flash Flood Warning	CTP	Warren	6 hr
May 22, 1:26 PM EDT	Mesoscale Discussion	SPC	Cameron, Clarion, Crawford, Elk, Forest, Jefferson and 5 more	94 min
May 22, 2:33 PM EDT	Flash Flood Warning	CLE	Crawford	4 hr
May 22, 5:23 PM EDT	Mesoscale Discussion	SPC	Bradford, Forest, McKean, Potter, Susquehanna, Tioga and 2 more	97 min
May 22, 5:45 PM EDT	Tornado Watch	SPC	Armstrong, Beaver, Bradford, Butler, Cameron, Clarion and 16 more	5 hr
May 22, 8:18 PM EDT	Mesoscale Discussion	SPC	Armstrong, Beaver, Bradford, Butler, Cameron, Clarion and 15 more	117 min
May 22, 10:50 PM EDT	Tornado Watch	SPC	Bradford, Clinton, Potter, Susquehanna, Tioga	4 hr
May 23, 12:04 AM EDT	Mesoscale Discussion	SPC	Bradford, Clinton, Susquehanna, Tioga	56 min
May 23, 12:27 AM EDT	Flash Flood Warning	CLE	Crawford	4 hr
May 23, 1:59 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	46 min
May 23, 3:27 PM EDT	Mesoscale Discussion	SPC	McKean	2 hr
May 23, 4:40 PM EDT	Severe Thunderstorm Watch	SPC	Bradford, Carbon, Clinton, Columbia, Lackawanna, Luzerne and 10 more	5 hr
May 23, 6:41 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	64 min
May 23, 6:45 PM EDT	Mesoscale Discussion	SPC	Bradford, Carbon, Clinton, Columbia, Lackawanna, Luzerne and 11 more	90 min
May 23, 7:58 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	62 min
May 24, 12:30 AM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more	6 hr
May 24, 2:09 AM EDT	Mesoscale Discussion	SPC	Greene, Washington	2 hr
May 24, 4:20 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer	55 min
May 24, 4:23 AM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	52 min
May 24, 4:55 AM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 10 more	95 min
May 24, 5:05 AM EDT	Flash Flood Warning	CTP	Warren	4 hr
May 24, 5:26 AM EDT	Flash Flood Warning	PBZ	Venango	3 hr
May 24, 9:29 AM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	46 min
May 24, 10:03 AM EDT	Mesoscale Discussion	SPC	Bedford, Berks, Blair, Bradford, Bucks, Carbon and 31 more	117 min
May 24, 11:00 AM EDT	Severe Thunderstorm Watch	SPC	Carbon, Columbia, Lackawanna, Lehigh, Luzerne, Monroe and 5 more	5 hr
May 24, 12:24 PM EDT	Mesoscale Discussion	SPC	Blair, Bradford, Cambria, Cameron, Centre, Clearfield and 12 more	2 hr
May 24, 12:40 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Blair, Bradford, Butler and 23 more	4 hr
May 24, 3:00 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Columbia, Lackawanna, Lehigh and 11 more	90 min
May 24, 3:24 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	51 min
May 24, 3:36 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	39 min
May 24, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	47 min
May 24, 4:00 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	45 min
May 24, 4:15 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	30 min
May 24, 4:44 PM EDT	Severe Thunderstorm Warning	BGM	Pike	31 min
May 24, 4:46 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	44 min
May 24, 4:55 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Berks, Bradford, Bucks, Carbon, Chester and 28 more	4 hr
May 24, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
May 24, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	53 min
May 24, 5:43 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Bucks, Carbon, Chester and 27 more	47 min
May 24, 6:04 PM EDT	Tornado Warning	PHI	Bucks	26 min
May 24, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	63 min
May 24, 7:25 PM EDT	Mesoscale Discussion	SPC	Berks, Bradford, Bucks, Carbon, Chester, Columbia and 24 more	95 min
May 24, 7:41 PM EDT	Special Marine Warning	PHI		64 min
May 25, 12:54 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Crawford, Greene, Lawrence, Mercer and 1 more	96 min
May 25, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	7 hr
May 25, 2:49 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	26 min
May 25, 2:58 PM EDT	Mesoscale Discussion	SPC	Bedford, Blair, Cambria, Fayette, Franklin, Fulton and 4 more	92 min
May 25, 3:19 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Westmoreland	41 min
May 25, 3:20 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Berks, Blair, Cambria, Cumberland and 11 more	6 hr
May 25, 3:25 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	65 min
May 25, 3:57 PM EDT	Tornado Warning	PBZ	Indiana	48 min
May 25, 3:57 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	63 min
May 25, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Huntingdon	40 min
May 25, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	85 min
May 25, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	47 min
May 25, 4:23 PM EDT	Severe Thunderstorm Warning	CTP	Blair	52 min
May 25, 4:31 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	59 min
May 25, 4:37 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	38 min
May 25, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	53 min
May 25, 5:01 PM EDT	Tornado Warning	CLE	Crawford	44 min
May 25, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	39 min
May 25, 5:27 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	63 min
May 25, 5:32 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	58 min
May 25, 5:37 PM EDT	Tornado Warning	PBZ	Venango	53 min
May 25, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	68 min
May 25, 6:09 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 15 more	2 hr
May 25, 7:02 PM EDT	Severe Thunderstorm Warning	CTP	Elk	58 min
May 25, 7:07 PM EDT	Tornado Warning	CTP	Elk	53 min
May 25, 7:55 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Venango	65 min
May 25, 8:34 PM EDT	Special Marine Warning	PHI		56 min
May 25, 9:25 PM EDT	Special Marine Warning	PHI		95 min
May 25, 10:52 PM EDT	Special Marine Warning	PHI		38 min
May 25, 10:52 PM EDT	Special Marine Warning	PHI		38 min
May 26, 12:55 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Bedford, Blair, Bradford, Cambria and 23 more	95 min
May 26, 4:26 PM EDT	Severe Thunderstorm Warning	CTP	Centre	49 min
May 26, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	49 min
May 26, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	Union	62 min
May 26, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	55 min
May 26, 5:15 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Carbon, Chester, Columbia and 20 more	2 hr
May 26, 5:29 PM EDT	Severe Thunderstorm Warning	CTP	Montour, Northumberland	61 min
May 26, 5:40 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	65 min
May 26, 5:52 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	53 min
May 26, 5:59 PM EDT	Severe Thunderstorm Warning	BGM	Wyoming	46 min
May 26, 6:07 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	38 min
May 26, 6:20 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	55 min
May 26, 6:21 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	39 min
May 26, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Berks	68 min
May 26, 7:30 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh	45 min
May 26, 9:01 PM EDT	Flash Flood Warning	CTP	Columbia, Lycoming	6 hr
May 26, 9:20 PM EDT	Flash Flood Warning	BGM	Luzerne	3 hr
May 26, 9:53 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	37 min
May 26, 10:06 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	39 min
May 26, 11:21 PM EDT	Severe Thunderstorm Warning	PHI	Berks	39 min
May 27, 3:07 PM EDT	Mesoscale Discussion	SPC	Adams, Franklin, York	113 min
May 27, 5:45 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Fayette, Greene, Washington	5 hr
May 27, 7:13 PM EDT	Mesoscale Discussion	SPC	Greene, Washington	92 min
May 27, 7:38 PM EDT	Severe Thunderstorm Warning	CTP	Union	37 min
May 27, 7:53 PM EDT	Severe Thunderstorm Warning	CTP	Montour, Northumberland	52 min
May 27, 8:56 PM EDT	Severe Thunderstorm Warning	PHI	Berks	49 min
May 27, 9:24 PM EDT	Severe Thunderstorm Warning	CLE	Erie	66 min
May 27, 10:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks	27 min
May 28, 10:08 AM EDT	Special Marine Warning	PHI		37 min
May 31, 12:40 AM EDT	Tornado Watch	SPC	Fayette, Greene, Somerset	5 hr
May 31, 2:40 AM EDT	Mesoscale Discussion	SPC	Fayette, Greene, Somerset	2 hr
May 31, 4:40 AM EDT	Mesoscale Discussion	SPC	Fayette, Greene, Somerset	95 min
Jun 1, 11:11 AM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bradford, Bucks and 39 more	64 min
Jun 1, 12:25 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Berks, Blair, Bradford, Bucks and 37 more	6 hr
Jun 1, 1:26 PM EDT	Severe Thunderstorm Warning	CTP	Adams	49 min
Jun 1, 1:31 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	14 min
Jun 1, 1:53 PM EDT	Severe Thunderstorm Warning	CTP	Perry	22 min
Jun 1, 3:08 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	52 min
Jun 1, 3:10 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	35 min
Jun 1, 3:11 PM EDT	Special Marine Warning	PHI		94 min
Jun 1, 3:31 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	44 min
Jun 1, 3:55 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Washington	7 hr
Jun 1, 4:21 PM EDT	Special Marine Warning	PHI		54 min
Jun 1, 4:21 PM EDT	Special Marine Warning	PHI		54 min
Jun 1, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	23 min
Jun 1, 4:22 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bradford, Bucks and 37 more	53 min
Jun 1, 4:25 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	50 min
Jun 1, 4:34 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	26 min
Jun 1, 4:45 PM EDT	Special Marine Warning	PHI		60 min
Jun 1, 4:49 PM EDT	Special Marine Warning	PHI		56 min
Jun 1, 4:56 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Fayette, Greene, Washington	34 min
Jun 1, 4:59 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	61 min
Jun 1, 5:10 PM EDT	Special Marine Warning	PHI		50 min
Jun 1, 5:15 PM EDT	Severe Thunderstorm Watch	SPC	Bedford, Blair, Cambria, Fayette, Fulton, Greene and 6 more	5 hr
Jun 1, 5:21 PM EDT	Special Marine Warning	PHI		39 min
Jun 1, 5:37 PM EDT	Special Marine Warning	PHI		38 min
Jun 1, 5:38 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	52 min
Jun 1, 5:45 PM EDT	Special Marine Warning	PHI		60 min
Jun 1, 6:17 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	28 min
Jun 1, 6:40 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	50 min
Jun 2, 11:45 AM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Berks and 49 more	2 hr
Jun 2, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	36 min
Jun 2, 4:48 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	42 min
Jun 2, 9:10 PM EDT	Special Marine Warning	PHI		65 min
Jun 9, 1:00 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Erie, Forest, Lawrence, McKean, Mercer and 3 more	5 hr
Jun 9, 3:44 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Forest, Lawrence, McKean, Mercer and 3 more	91 min
Jun 9, 3:57 PM EDT	Severe Thunderstorm Warning	CTP	Warren	63 min
Jun 9, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	Bradford, Susquehanna, Tioga	5 hr
Jun 9, 5:27 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Forest, McKean, Mercer, Venango and 1 more	63 min
Jun 9, 5:50 PM EDT	Severe Thunderstorm Watch	SPC	Butler, Cameron, Clarion, Clinton, Crawford, Elk and 9 more	4 hr
Jun 9, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	64 min
Jun 9, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	53 min
Jun 9, 6:08 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	67 min
Jun 9, 6:10 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	50 min
Jun 9, 6:28 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	62 min
Jun 9, 6:35 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	40 min
Jun 9, 6:54 PM EDT	Mesoscale Discussion	SPC	Butler, Clarion, Crawford, Elk, Forest, Lawrence and 5 more	96 min
Jun 9, 7:15 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	45 min
Jun 9, 7:21 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	29 min
Jun 9, 7:55 PM EDT	Severe Thunderstorm Watch	SPC	Monroe, Northampton, Pike, Wayne	5 hr
Jun 9, 8:12 PM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Clarion, Jefferson, Lawrence, Mercer and 1 more	63 min
Jun 9, 8:26 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	49 min
Jun 9, 8:54 PM EDT	Severe Thunderstorm Warning	BGM	Wyoming	36 min
Jun 9, 9:31 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	29 min
Jun 9, 9:37 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	23 min
Jun 10, 1:31 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 25 more	119 min
Jun 10, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	Bucks, Chester, Delaware, Lancaster, Lebanon, Montgomery and 2 more	5 hr
Jun 10, 3:22 PM EDT	Special Marine Warning	PHI		38 min
Jun 10, 3:45 PM EDT	Special Marine Warning	PHI		30 min
Jun 10, 4:56 PM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more	94 min
Jun 10, 6:44 PM EDT	Special Marine Warning	PHI		46 min
Jun 10, 7:58 PM EDT	Special Marine Warning	PHI		47 min
Jun 10, 9:32 PM EDT	Special Marine Warning	PHI		43 min
Jun 13, 7:00 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Erie	5 hr
Jun 13, 8:30 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie	90 min
Jun 13, 11:08 PM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Crawford, Erie, Forest, Lawrence and 3 more	97 min
Jun 13, 11:33 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	57 min
Jun 13, 11:45 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Butler, Lawrence, Mercer, Venango and 1 more	4 hr
Jun 14, 12:49 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver	41 min
Jun 14, 1:11 AM EDT	Severe Thunderstorm Warning	PBZ	Butler	49 min
Jun 14, 2:16 AM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	59 min
Jun 14, 2:40 AM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Washington	2 hr
Jun 14, 7:43 AM EDT	Flash Flood Warning	PBZ	Washington	2 hr
Jun 14, 11:22 AM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Clarion, Crawford, Elk, Erie and 8 more	53 min
Jun 14, 3:20 PM EDT	Mesoscale Discussion	SPC	Cameron, Clarion, Crawford, Elk, Erie, Forest and 6 more	115 min
Jun 14, 4:45 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Chester, Cumberland, Dauphin and 10 more	2 hr
Jun 14, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	Armstrong, Beaver, Butler, Cameron, Clarion, Crawford and 11 more	6 hr
Jun 14, 6:29 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	91 min
Jun 14, 6:33 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	57 min
Jun 14, 6:43 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	62 min
Jun 14, 6:54 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	51 min
Jun 14, 7:07 PM EDT	Severe Thunderstorm Warning	CTP	Warren	83 min
Jun 14, 7:09 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	66 min
Jun 14, 7:14 PM EDT	Flash Flood Warning	CTP	York	4 hr
Jun 14, 7:15 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 25 more	4 hr
Jun 14, 7:19 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	86 min
Jun 14, 7:31 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	59 min
Jun 14, 7:32 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder	58 min
Jun 14, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	56 min
Jun 14, 7:35 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	55 min
Jun 14, 7:45 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	60 min
Jun 14, 7:46 PM EDT	Severe Thunderstorm Warning	PHI	Chester	74 min
Jun 14, 7:51 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	54 min
Jun 14, 7:56 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	64 min
Jun 14, 8:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	59 min
Jun 14, 8:03 PM EDT	Mesoscale Discussion	SPC	Armstrong, Beaver, Butler, Cameron, Clarion, Elk and 8 more	87 min
Jun 14, 8:04 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	56 min
Jun 14, 8:04 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	56 min
Jun 14, 8:33 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	57 min
Jun 14, 8:35 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	55 min
Jun 14, 8:42 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	63 min
Jun 14, 8:52 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	53 min
Jun 14, 8:53 PM EDT	Severe Thunderstorm Warning	CTP	Cameron	52 min
Jun 14, 8:56 PM EDT	Flash Flood Warning	CTP	Adams	4 hr
Jun 14, 8:56 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	34 min
Jun 14, 9:08 PM EDT	Severe Thunderstorm Warning	CTP	Potter	67 min
Jun 14, 9:15 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	60 min
Jun 14, 9:19 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	56 min
Jun 14, 9:25 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	50 min
Jun 14, 9:29 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	46 min
Jun 14, 9:33 PM EDT	Severe Thunderstorm Warning	CTP	Centre	72 min
Jun 14, 9:41 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	64 min
Jun 14, 9:57 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	63 min
Jun 14, 10:08 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	52 min
Jun 14, 10:13 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Carbon, Columbia, Cumberland and 23 more	62 min
Jun 14, 10:21 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	54 min
Jun 15, 2:22 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Butler, Greene, Lawrence, Washington	113 min
Jun 15, 3:33 PM EDT	Flash Flood Warning	PBZ	Allegheny, Washington	3 hr
Jun 15, 3:46 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	59 min
Jun 15, 3:55 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Bucks, Cameron, Carbon and 37 more	95 min
Jun 15, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	44 min
Jun 15, 4:30 PM EDT	Flash Flood Warning	PBZ	Beaver, Butler	3 hr
Jun 15, 4:42 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Westmoreland	63 min
Jun 15, 4:47 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	43 min
Jun 15, 5:00 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	45 min
Jun 15, 5:07 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	38 min
Jun 15, 5:19 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	41 min
Jun 15, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	33 min
Jun 15, 6:13 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	32 min
Jun 15, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Chester	45 min
Jun 15, 6:25 PM EDT	Tornado Warning	PHI	Chester	35 min
Jun 16, 4:13 PM EDT	Flash Flood Warning	PBZ	Fayette	3 hr
Jun 16, 5:12 PM EDT	Flash Flood Warning	CTP	Cambria	3 hr
Jun 16, 8:35 PM EDT	Flash Flood Warning	CTP	Adams, York	3 hr
Jun 17, 12:05 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Blair, Bradford, Butler and 33 more	115 min
Jun 17, 1:22 PM EDT	Severe Thunderstorm Warning	CTP	Warren	53 min
Jun 17, 1:44 PM EDT	Severe Thunderstorm Warning	CTP	McKean	61 min
Jun 17, 1:45 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Bedford, Blair, Bradford and 40 more	6 hr
Jun 17, 1:58 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	32 min
Jun 17, 2:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	59 min
Jun 17, 2:15 PM EDT	Severe Thunderstorm Warning	CTP	Adams	45 min
Jun 17, 2:18 PM EDT	Severe Thunderstorm Warning	CTP	Elk	57 min
Jun 17, 2:22 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	53 min
Jun 17, 2:30 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Potter	90 min
Jun 17, 2:35 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Berks, Bucks, Chester, Delaware, Lancaster and 7 more	6 hr
Jun 17, 2:37 PM EDT	Severe Thunderstorm Warning	PHI	Chester	53 min
Jun 17, 2:40 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	65 min
Jun 17, 2:40 PM EDT	Severe Thunderstorm Warning	PHI	Chester	50 min
Jun 17, 2:46 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	59 min
Jun 17, 2:50 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	55 min
Jun 17, 3:11 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	64 min
Jun 17, 3:13 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	62 min
Jun 17, 3:21 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	54 min
Jun 17, 3:27 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	93 min
Jun 17, 3:35 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	55 min
Jun 17, 3:47 PM EDT	Tornado Warning	CTP	Lancaster	73 min
Jun 17, 3:49 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	56 min
Jun 17, 4:00 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	60 min
Jun 17, 4:03 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	27 min
Jun 17, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	32 min
Jun 17, 4:15 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	60 min
Jun 17, 4:18 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour	72 min
Jun 17, 4:22 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 37 more	83 min
Jun 17, 4:25 PM EDT	Tornado Warning	CTP	Montour	20 min
Jun 17, 4:38 PM EDT	Severe Thunderstorm Warning	CTP	Union	67 min
Jun 17, 4:46 PM EDT	Tornado Warning	CTP	Columbia	44 min
Jun 17, 4:48 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	72 min
Jun 17, 4:49 PM EDT	Severe Thunderstorm Warning	CTP	Centre	41 min
Jun 17, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	56 min
Jun 17, 5:10 PM EDT	Severe Thunderstorm Warning	CTP	Snyder	20 min
Jun 17, 5:23 PM EDT	Special Marine Warning	PHI		97 min
Jun 17, 5:27 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	18 min
Jun 17, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	56 min
Jun 17, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	38 min
Jun 17, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Perry	49 min
Jun 17, 5:58 PM EDT	Severe Thunderstorm Warning	PHI	Carbon	32 min
Jun 17, 6:10 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	50 min
Jun 17, 6:18 PM EDT	Flash Flood Warning	CTP	Columbia	3 hr
Jun 17, 6:19 PM EDT	Flash Flood Warning	PBZ	Fayette	3 hr
Jun 17, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	33 min
Jun 17, 6:45 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	30 min
Jun 17, 7:08 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
Jun 17, 7:35 PM EDT	Flash Flood Warning	CTP	Cambria	4 hr
Jun 17, 7:37 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Carbon, Chester, Delaware and 7 more	53 min
Jun 17, 7:47 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	58 min
Jun 17, 8:12 PM EDT	Severe Thunderstorm Warning	PHI	Chester	33 min
Jun 17, 8:20 PM EDT	Flash Flood Warning	PHI	Chester	93 days
Jun 17, 9:29 PM EDT	Flash Flood Warning	PBZ	Westmoreland	3 hr
Jun 17, 9:49 PM EDT	Flash Flood Warning	PBZ	Butler	3 hr
Jun 17, 10:33 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	42 min
Jun 17, 10:42 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	63 min
Jun 17, 11:37 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	53 min
Jun 17, 11:40 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	65 min
Jun 22, 12:08 PM EDT	Mesoscale Discussion	SPC	Adams, Chester, Cumberland, Franklin, Fulton, Lancaster and 2 more	97 min
Jun 22, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	Delaware	6 hr
Jun 22, 4:16 PM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lancaster, Montgomery, Philadelphia and 1 more	89 min
Jun 22, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	57 min
Jun 22, 7:04 PM EDT	Mesoscale Discussion	SPC	Delaware, Philadelphia	56 min
Jun 24, 3:11 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Mercer, Venango	94 min
Jun 24, 7:44 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Cambria, Cameron and 14 more	2 hr
Jun 24, 7:45 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	60 min
Jun 24, 8:10 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 26 more	5 hr
Jun 24, 8:26 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	64 min
Jun 24, 8:54 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	66 min
Jun 24, 10:28 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 23 more	2 hr
Jun 25, 1:08 PM EDT	Mesoscale Discussion	SPC	Adams, Bucks, Chester, Delaware, Lancaster, Montgomery and 2 more	2 hr
Jun 25, 1:45 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bucks, Chester, Cumberland, Delaware, Franklin and 6 more	7 hr
Jun 25, 3:17 PM EDT	Flash Flood Warning	PHI	Bucks, Montgomery	85 days
Jun 25, 3:45 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	45 min
Jun 25, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	62 min
Jun 25, 4:14 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Chester, Delaware, Lancaster, Montgomery and 2 more	2 hr
Jun 25, 5:11 PM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	85 days
Jun 25, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	61 min
Jun 25, 6:53 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	37 min
Jun 25, 7:13 PM EDT	Severe Thunderstorm Warning	PHI	Berks	62 min
Jun 25, 7:25 PM EDT	Flash Flood Warning	PHI	Berks, Chester, Delaware	85 days
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
Jul 31, 9:31 PM EDT	Flash Flood Warning	CTP	Lancaster	6 hr
Aug 1, 3:56 AM EDT	Flash Flood Warning	CTP	York	6 hr
Aug 1, 4:54 AM EDT	Flash Flood Warning	CTP	Dauphin	6 hr
Aug 1, 7:12 AM EDT	Flash Flood Warning	PHI	Montgomery	2 hr
Aug 1, 7:30 AM EDT	Flash Flood Warning	PHI	Philadelphia	2 hr
Aug 1, 7:43 AM EDT	Flash Flood Warning	PHI	Bucks	2 hr
Aug 1, 7:50 AM EDT	Flash Flood Warning	PHI	Chester, Delaware	115 min
Aug 1, 8:01 AM EDT	Flash Flood Warning	PHI	Montgomery	89 min
Aug 1, 9:08 AM EDT	Flash Flood Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	2 hr
Aug 1, 9:34 AM EDT	Flash Flood Warning	CTP	Cumberland	3 hr
Aug 1, 10:59 AM EDT	Flash Flood Warning	PHI	Delaware, Montgomery, Philadelphia	2 hr
Aug 1, 12:52 PM EDT	Flash Flood Warning	PHI	Delaware, Philadelphia	4 hr
Aug 2, 7:29 PM EDT	Flash Flood Warning	CTP	York	6 hr
Aug 2, 7:31 PM EDT	Flash Flood Warning	PHI	Bucks	119 min
Aug 2, 8:14 PM EDT	Flash Flood Warning	CTP	Lancaster	6 hr
Aug 2, 8:39 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	66 min
Aug 2, 8:39 PM EDT	Flash Flood Warning	PHI	Monroe	3 hr
Aug 4, 10:39 AM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland	2 hr
Aug 4, 11:55 AM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	5 hr
Aug 4, 1:14 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	61 min
Aug 4, 1:27 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	63 min
Aug 4, 2:00 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	60 min
Aug 4, 2:11 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	49 min
Aug 4, 2:17 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	58 min
Aug 4, 2:19 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	56 min
Aug 4, 2:22 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	68 min
Aug 4, 2:30 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	75 min
Aug 4, 2:31 PM EDT	Mesoscale Discussion	SPC	Allegheny, Bedford, Blair, Cambria, Centre, Clearfield and 13 more	119 min
Aug 4, 2:38 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	67 min
Aug 4, 2:49 PM EDT	Tornado Warning	CTP	Clearfield	26 min
Aug 4, 2:53 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	67 min
Aug 4, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Blair, Cambria, Carbon, Centre and 20 more	6 hr
Aug 4, 3:22 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	53 min
Aug 4, 3:33 PM EDT	Tornado Warning	PBZ	Westmoreland	27 min
Aug 4, 3:57 PM EDT	Severe Thunderstorm Warning	CTP	Centre	63 min
Aug 4, 4:09 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	66 min
Aug 4, 4:20 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	55 min
Aug 4, 4:24 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	36 min
Aug 4, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	64 min
Aug 4, 4:45 PM EDT	Severe Thunderstorm Warning	CTP	Snyder, Union	60 min
Aug 4, 4:54 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	36 min
Aug 4, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	61 min
Aug 4, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	71 min
Aug 4, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Northumberland	65 min
Aug 4, 5:43 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	62 min
Aug 4, 5:48 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Carbon, Chester, Cumberland and 11 more	117 min
Aug 4, 6:02 PM EDT	Tornado Warning	CTP	Cumberland, Dauphin	43 min
Aug 4, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	York	54 min
Aug 4, 6:12 PM EDT	Tornado Warning	CTP	York	48 min
Aug 4, 6:17 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	73 min
Aug 4, 6:36 PM EDT	Tornado Warning	CTP	Lancaster	39 min
Aug 4, 6:58 PM EDT	Tornado Warning	CTP	York	32 min
Aug 4, 7:02 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	73 min
Aug 4, 7:10 PM EDT	Severe Thunderstorm Watch	SPC	Chester, Delaware, Lancaster, Montgomery, Philadelphia	4 hr
Aug 4, 7:13 PM EDT	Tornado Warning	CTP	Lancaster	47 min
Aug 4, 7:49 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Montgomery, Philadelphia	56 min
Aug 10, 11:54 AM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Bedford, Blair, Butler, Cambria and 24 more	96 min
Aug 10, 1:10 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 23 more	7 hr
Aug 10, 2:09 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	51 min
Aug 10, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	Warren	62 min
Aug 10, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	60 min
Aug 10, 3:44 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	61 min
Aug 10, 3:55 PM EDT	Severe Thunderstorm Warning	CTP	McKean	65 min
Aug 10, 4:16 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 21 more	89 min
Aug 10, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	Snyder	47 min
Aug 10, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	51 min
Aug 10, 5:13 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	47 min
Aug 10, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	57 min
Aug 10, 5:27 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	63 min
Aug 10, 5:33 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	57 min
Aug 10, 5:50 PM EDT	Severe Thunderstorm Warning	CTP	Potter	40 min
Aug 10, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	64 min
Aug 10, 6:16 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	59 min
Aug 10, 6:17 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	58 min
Aug 10, 6:58 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	62 min
Aug 10, 7:27 PM EDT	Mesoscale Discussion	SPC	Bradford, Centre, Clearfield, Clinton, Lycoming, Sullivan and 3 more	93 min
Aug 10, 7:44 PM EDT	Severe Thunderstorm Warning	CTP	Perry	31 min
Aug 10, 8:05 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	40 min
Aug 10, 8:43 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	32 min
Aug 10, 8:51 PM EDT	Severe Thunderstorm Warning	CTP	McKean	54 min
Aug 10, 9:06 PM EDT	Flash Flood Warning	CTP	McKean	6 hr
Aug 10, 9:44 PM EDT	Flash Flood Warning	PBZ	Fayette	3 hr
Aug 11, 11:59 AM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 4 more	91 min
Aug 11, 12:55 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Berks, Bradford, Bucks, Carbon, Chester and 25 more	7 hr
Aug 11, 2:21 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	54 min
Aug 11, 2:28 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	62 min
Aug 11, 2:40 PM EDT	Severe Thunderstorm Warning	PHI	Chester	95 min
Aug 11, 2:52 PM EDT	Tornado Warning	CTP	Lancaster	38 min
Aug 11, 3:12 PM EDT	Tornado Warning	PHI	Chester	78 min
Aug 11, 4:04 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	41 min
Aug 11, 4:29 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	61 min
Aug 11, 4:31 PM EDT	Flash Flood Warning	CTP	Lancaster	6 hr
Aug 11, 5:09 PM EDT	Special Marine Warning	PHI		81 min
Aug 11, 5:25 PM EDT	Severe Thunderstorm Warning	PHI	Berks	65 min
Aug 11, 5:28 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	32 min
Aug 11, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	53 min
Aug 11, 5:56 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	34 min
Aug 11, 7:00 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 8 more	90 min
Aug 11, 8:21 PM EDT	Special Marine Warning	PHI		54 min
Aug 12, 12:00 PM EDT	Mesoscale Discussion	SPC	Bucks, Carbon, Lackawanna, Lehigh, Monroe, Montgomery and 5 more	90 min
Aug 12, 1:40 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	65 min
Aug 12, 1:53 PM EDT	Tornado Warning	CTP	Schuylkill	52 min
Aug 12, 2:45 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	30 min
Aug 12, 5:15 PM EDT	Flash Flood Warning	PHI	Berks	3 hr
Aug 12, 5:30 PM EDT	Flash Flood Warning	CTP	Lebanon, Schuylkill	6 hr
Aug 12, 5:51 PM EDT	Flash Flood Warning	CTP	York	6 hr
Aug 12, 5:53 PM EDT	Flash Flood Warning	BGM	Pike	4 hr
Aug 12, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	63 min
Aug 12, 7:47 PM EDT	Flash Flood Warning	PHI	Berks, Carbon	3 hr
Aug 12, 8:50 PM EDT	Flash Flood Warning	PHI	Chester	3 hr
Aug 12, 9:14 PM EDT	Flash Flood Warning	BGM	Wayne	3 hr
Aug 12, 9:32 PM EDT	Flash Flood Warning	BGM	Pike	3 hr
Aug 12, 10:42 PM EDT	Flash Flood Warning	PHI	Berks	4 hr
Aug 12, 10:59 PM EDT	Flash Flood Warning	PHI	Monroe	4 hr
Aug 13, 12:11 AM EDT	Flash Flood Warning	BGM	Pike	4 hr
Aug 13, 2:41 AM EDT	Flash Flood Warning	PHI	Berks	3 hr
Aug 13, 2:49 AM EDT	Flash Flood Warning	PHI	Monroe	3 hr
Aug 16, 4:01 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	14 min
Aug 16, 4:40 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	50 min
Aug 17, 8:48 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Mercer	117 min
Aug 18, 1:24 PM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lancaster, Lehigh, Montgomery and 2 more	96 min
Aug 18, 6:01 PM EDT	Mesoscale Discussion	SPC	Beaver, Crawford, Lawrence, Mercer, Venango	89 min
Aug 18, 7:14 PM EDT	Special Marine Warning	PHI		31 min
Aug 19, 1:25 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	50 min
Aug 19, 1:41 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Fayette, Greene, Indiana, Washington and 1 more	64 min
Aug 19, 2:06 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	39 min
Aug 19, 2:12 PM EDT	Tornado Warning	PBZ	Armstrong	33 min
Aug 19, 2:26 PM EDT	Tornado Warning	PBZ	Indiana	34 min
Aug 19, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Bedford, Blair, Cambria, Fayette and 10 more	6 hr
Aug 19, 2:46 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	59 min
Aug 19, 2:48 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	42 min
Aug 19, 2:49 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	56 min
Aug 19, 3:01 PM EDT	Tornado Warning	PBZ	Indiana	59 min
Aug 19, 3:15 PM EDT	Tornado Warning	CTP	Cambria	30 min
Aug 19, 3:30 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	60 min
Aug 19, 4:00 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	60 min
Aug 19, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	65 min
Aug 19, 4:50 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	55 min
Aug 19, 4:58 PM EDT	Severe Thunderstorm Warning	CTP	York	62 min
Aug 19, 4:58 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	62 min
Aug 19, 5:02 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 16 more	88 min
Aug 19, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Adams	59 min
Aug 19, 6:00 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	60 min
Aug 19, 6:05 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	55 min
Aug 19, 6:10 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Chester, Delaware, Lancaster, York	4 hr
Aug 19, 6:38 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	52 min
Aug 19, 6:38 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	67 min
Aug 19, 6:42 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	63 min
Aug 19, 6:45 PM EDT	Severe Thunderstorm Warning	CTP	Adams	30 min
Aug 19, 7:26 PM EDT	Mesoscale Discussion	SPC	Allegheny, Washington, Westmoreland	64 min
Aug 19, 8:28 PM EDT	Mesoscale Discussion	SPC	Adams	92 min
Aug 20, 11:56 AM EDT	Mesoscale Discussion	SPC	Bradford, Centre, Clinton, Columbia, Lackawanna, Luzerne and 10 more	2 hr
Aug 20, 1:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre	48 min
Aug 20, 2:05 PM EDT	Severe Thunderstorm Watch	SPC	Blair, Bradford, Cambria, Cameron, Carbon, Centre and 27 more	5 hr
Aug 20, 2:29 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	61 min
Aug 20, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre	48 min
Aug 20, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	Union	64 min
Aug 20, 3:25 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	50 min
Aug 20, 3:30 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	60 min
Aug 20, 3:36 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	54 min
Aug 20, 3:41 PM EDT	Mesoscale Discussion	SPC	Blair, Bradford, Cambria, Cameron, Carbon, Centre and 27 more	2 hr
Aug 20, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	59 min
Aug 20, 3:48 PM EDT	Severe Thunderstorm Warning	CTP	Montour, Northumberland	42 min
Aug 20, 3:55 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	50 min
Aug 20, 4:01 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	89 min
Aug 20, 4:03 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Cumberland, Franklin, Fulton and 4 more	2 hr
Aug 20, 4:16 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna	59 min
Aug 20, 4:25 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Cambria, Clearfield and 7 more	5 hr
Aug 20, 4:27 PM EDT	Severe Thunderstorm Warning	BGM	Wyoming	63 min
Aug 20, 4:35 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	55 min
Aug 20, 4:47 PM EDT	Tornado Warning	PBZ	Beaver	43 min
Aug 20, 5:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	59 min
Aug 20, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre	56 min
Aug 20, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	66 min
Aug 20, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	56 min
Aug 20, 5:21 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	54 min
Aug 20, 5:23 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	22 min
Aug 20, 5:25 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	65 min
Aug 20, 5:33 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	57 min
Aug 20, 5:39 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	66 min
Aug 20, 5:58 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	62 min
Aug 20, 6:02 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	58 min
Aug 20, 6:02 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh	43 min
Aug 20, 6:06 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	54 min
Aug 20, 6:10 PM EDT	Severe Thunderstorm Watch	SPC	Bradford, Cameron, Carbon, Centre, Clinton, Columbia and 21 more	5 hr
Aug 20, 6:25 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	50 min
Aug 20, 6:27 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	63 min
Aug 20, 6:34 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	56 min
Aug 20, 6:36 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	69 min
Aug 20, 6:44 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	61 min
Aug 20, 6:49 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	56 min
Aug 20, 7:15 PM EDT	Mesoscale Discussion	SPC	Cambria, Clearfield, Indiana, Somerset, Westmoreland	90 min
Aug 20, 7:30 PM EDT	Flash Flood Warning	CTP	Union	6 hr
Aug 20, 7:30 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	60 min
Aug 20, 8:22 PM EDT	Mesoscale Discussion	SPC	Bradford, Carbon, Centre, Clinton, Columbia, Cumberland and 24 more	83 min
Aug 21, 11:48 AM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 4 more	117 min
Aug 21, 12:55 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	50 min
Aug 21, 1:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	30 min
Aug 21, 1:25 PM EDT	Severe Thunderstorm Watch	SPC	Bucks, Delaware, Philadelphia	5 hr
Aug 21, 2:55 PM EDT	Flash Flood Warning	CTP	Lancaster	4 hr
Aug 21, 3:08 PM EDT	Mesoscale Discussion	SPC	Bucks, Delaware, Philadelphia	2 hr
Aug 21, 4:35 PM EDT	Mesoscale Discussion	SPC	Bucks, Delaware, Philadelphia	85 min
Aug 21, 5:14 PM EDT	Special Marine Warning	PHI		76 min
Aug 21, 5:14 PM EDT	Special Marine Warning	PHI		76 min
Aug 27, 5:55 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	65 min
Aug 27, 9:14 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	61 min
Aug 28, 10:08 AM EDT	Flash Flood Warning	PBZ	Lawrence	3 hr
Aug 28, 12:07 PM EDT	Flash Flood Warning	PBZ	Allegheny	3 hr
Aug 28, 1:25 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	35 min
Aug 28, 8:13 PM EDT	Flash Flood Warning	CTP	Bedford	6 hr
Aug 29, 2:46 PM EDT	Severe Thunderstorm Warning	CTP	Centre	44 min
Aug 29, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	59 min
Aug 29, 4:29 PM EDT	Severe Thunderstorm Warning	CTP	Centre	61 min
Aug 29, 8:36 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	54 min
Aug 29, 9:15 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	60 min
Aug 30, 2:05 PM EDT	Flash Flood Warning	CTP	Tioga	6 hr
Aug 30, 6:54 PM EDT	Flash Flood Warning	BGM	Pike	4 hr
Aug 30, 7:26 PM EDT	Flash Flood Warning	BGM	Lackawanna	3 hr
Aug 30, 7:46 PM EDT	Flash Flood Warning	PHI	Chester, Montgomery	119 min
Aug 30, 8:30 PM EDT	Flash Flood Warning	BGM	Susquehanna, Wyoming	4 hr
Aug 31, 12:20 AM EDT	Flash Flood Warning	BGM	Susquehanna, Wyoming	4 hr
Sep 8, 5:53 PM EDT	Severe Thunderstorm Warning	CTP	Fulton	37 min
Sep 8, 6:28 PM EDT	Flash Flood Warning	PHI	Northampton	3 hr
Sep 8, 6:40 PM EDT	Tornado Watch	SPC	Adams, Bedford, Cumberland, Franklin, Fulton, Somerset	5 hr
Sep 8, 6:57 PM EDT	Flash Flood Warning	CTP	Somerset	6 hr
Sep 8, 8:30 PM EDT	Mesoscale Discussion	SPC	Adams, Franklin, Fulton	2 hr
Sep 9, 12:25 AM EDT	Flash Flood Warning	CLE	Crawford, Erie	4 hr
Sep 9, 2:05 AM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 2 more	2 hr
Sep 9, 4:35 AM EDT	Flash Flood Warning	CLE	Crawford, Erie	5 hr
Sep 9, 9:18 AM EDT	Special Marine Warning	PHI		42 min
Sep 17, 12:12 PM EDT	Flash Flood Warning	CLE	Crawford	3 hr
Sep 17, 1:15 PM EDT	Flash Flood Warning	CLE	Erie	3 hr
Sep 17, 2:15 PM EDT	Flash Flood Warning	CTP	Warren	6 hr
Sep 17, 3:33 PM EDT	Mesoscale Discussion	SPC	Adams, Lancaster, York	117 min
Sep 17, 5:11 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	64 min
Sep 17, 5:22 PM EDT	Tornado Warning	CTP	Bedford, Fulton	53 min
Sep 17, 6:46 PM EDT	Flash Flood Warning	BGM	Bradford	6 hr
Sep 17, 6:50 PM EDT	Tornado Watch	SPC	Adams, Franklin, Fulton, Lancaster, York	5 hr
Sep 17, 7:20 PM EDT	Tornado Warning	CTP	Franklin	40 min
Sep 17, 7:29 PM EDT	Tornado Warning	CTP	Fulton	46 min
Sep 17, 7:43 PM EDT	Tornado Warning	CTP	Adams, Franklin	47 min
Sep 17, 8:11 PM EDT	Tornado Warning	CTP	Bedford	34 min
Sep 17, 8:32 PM EDT	Tornado Warning	CTP	Cumberland	43 min
Sep 17, 8:43 PM EDT	Tornado Warning	CTP	Juniata, Mifflin	47 min
Sep 17, 8:52 PM EDT	Flash Flood Warning	BGM	Susquehanna	6 hr
Sep 17, 8:52 PM EDT	Flash Flood Warning	CTP	Cambria, Clearfield	6 hr
Sep 17, 9:17 PM EDT	Severe Thunderstorm Warning	CTP	Perry	58 min
Sep 17, 9:58 PM EDT	Mesoscale Discussion	SPC	Adams, Franklin, Fulton, Lancaster, York	2 hr
Sep 17, 10:16 PM EDT	Severe Thunderstorm Warning	CTP	Perry	59 min
Sep 17, 11:40 PM EDT	Flash Flood Warning	BGM	Wyoming	6 hr
Sep 18, 12:41 AM EDT	Flash Flood Warning	BGM	Bradford	4 hr
Sep 18, 1:00 AM EDT	Flash Flood Warning	BGM	Luzerne	4 hr
Sep 18, 2:20 AM EDT	Flash Flood Warning	CTP	Huntingdon	2 hr
Sep 18, 2:26 AM EDT	Flash Flood Warning	BGM	Lackawanna	4 hr
Sep 18, 2:39 AM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lehigh, Monroe, Montgomery and 2 more	2 hr
Sep 18, 2:50 AM EDT	Flash Flood Warning	BGM	Susquehanna	4 hr
Sep 18, 3:23 AM EDT	Flash Flood Warning	BGM	Pike, Wayne	4 hr
Sep 18, 3:29 AM EDT	Severe Thunderstorm Warning	PHI	Chester	31 min
Sep 18, 4:13 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster	47 min
Sep 18, 4:42 AM EDT	Flash Flood Warning	BGM	Luzerne	4 hr
Sep 18, 4:47 AM EDT	Flash Flood Warning	BGM	Bradford	3 hr
Sep 18, 5:10 AM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Columbia, Dauphin and 15 more	2 hr
Sep 18, 5:54 AM EDT	Flash Flood Warning	BGM	Lackawanna	3 hr
Sep 18, 6:05 AM EDT	Flash Flood Warning	BGM	Susquehanna	115 min
Sep 18, 6:09 AM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	4 hr
Sep 18, 6:40 AM EDT	Flash Flood Warning	BGM	Pike	3 hr
Sep 18, 6:44 AM EDT	Flash Flood Warning	BGM	Wayne	3 hr
Sep 18, 7:07 AM EDT	Flash Flood Warning	PHI	Bucks, Montgomery	4 hr
Sep 18, 7:44 AM EDT	Flash Flood Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	6 hr
Sep 18, 9:48 AM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	4 hr
Sep 18, 10:31 AM EDT	Flash Flood Warning	PHI	Chester, Delaware	3 hr
Sep 18, 10:48 AM EDT	Flash Flood Warning	CTP	Huntingdon	6 hr
Sep 18, 10:57 AM EDT	Flash Flood Warning	PHI	Bucks, Montgomery	3 hr
Sep 18, 1:44 PM EDT	Flash Flood Warning	BGM	Pike, Wayne	6 hr
Sep 18, 1:45 PM EDT	Flash Flood Warning	PHI	Bucks, Chester, Delaware, Montgomery	2 hr
Sep 18, 2:00 PM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	3 hr
Sep 18, 4:45 PM EDT	Flash Flood Warning	CTP	Huntingdon	6 hr
Sep 18, 10:48 PM EDT	Flash Flood Warning	CTP	Huntingdon	10 hr
Sep 28, 12:48 PM EDT	Flash Flood Warning	PHI	Monroe, Northampton	3 hr
Sep 28, 1:03 PM EDT	Flash Flood Warning	BGM	Pike	3 hr
Sep 28, 1:49 PM EDT	Mesoscale Discussion	SPC	Chester, Delaware, Philadelphia	116 min
Sep 28, 2:25 PM EDT	Tornado Watch	SPC	Chester, Delaware, Philadelphia	7 hr
Sep 28, 3:55 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	3 hr
Sep 28, 4:16 PM EDT	Flash Flood Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	3 hr
Sep 28, 4:36 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lancaster and 6 more	114 min
Sep 28, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	79 min
Sep 28, 4:55 PM EDT	Flash Flood Warning	PHI	Carbon, Monroe	4 hr
Sep 28, 5:11 PM EDT	Flash Flood Warning	PHI	Philadelphia	3 hr
Sep 28, 6:05 PM EDT	Special Marine Warning	PHI		115 min
Sep 28, 6:47 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	3 hr
Sep 28, 7:11 PM EDT	Flash Flood Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	6 hr
Sep 28, 8:05 PM EDT	Flash Flood Warning	PHI	Chester, Delaware, Philadelphia	6 hr
Oct 2, 3:49 PM EDT	Mesoscale Discussion	SPC	Bedford, Blair, Centre, Franklin, Fulton, Huntingdon and 6 more	116 min
Nov 25, 6:16 AM EST	Severe Thunderstorm Warning	CTP	Adams, Franklin	59 min
Nov 25, 6:22 AM EST	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	38 min
Nov 25, 7:11 AM EST	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Montour, Northumberland	49 min
Nov 25, 7:12 AM EST	Mesoscale Discussion	SPC	Adams, Berks, Bradford, Bucks, Carbon, Chester and 25 more	63 min
Nov 25, 7:35 AM EST	Special Marine Warning	PHI		40 min
Nov 25, 8:13 AM EST	Severe Thunderstorm Warning	BGM	Lackawanna	32 min
Nov 25, 8:32 AM EST	Severe Thunderstorm Warning	BGM	Wayne	28 min
Nov 25, 9:56 AM EST	Severe Thunderstorm Warning	PHI	Delaware, Montgomery, Philadelphia	34 min
Nov 28, 6:59 AM EST	Flash Flood Warning	BGM	Lackawanna, Wayne	3 hr
Nov 28, 7:08 AM EST	Flash Flood Warning	BGM	Luzerne, Wyoming	3 hr
Nov 28, 8:01 AM EST	Flash Flood Warning	BGM	Susquehanna	3 hr
Nov 28, 10:55 AM EST	Flash Flood Warning	BGM	Susquehanna	2 hr
Dec 6, 6:48 AM EST	Mesoscale Discussion	SPC	Bradford, Cameron, Clinton, Elk, Lycoming, McKean and 5 more	6 hr
Dec 8, 1:19 AM EST	Special Marine Warning	PHI		41 min
Dec 13, 2:12 PM EST	Mesoscale Discussion	SPC	Crawford	4 hr
Dec 19, 1:05 PM EST	Mesoscale Discussion	SPC	Cambria, Fayette, Greene, Indiana, Somerset, Westmoreland	4 hr
Dec 22, 1:01 PM EST	Mesoscale Discussion	SPC	Crawford, Erie, Lawrence, Mercer, Venango, Warren	5 hr
Dec 22, 7:18 PM EST	Mesoscale Discussion	SPC	Crawford, Erie, Lawrence, Mercer, Venango, Warren	5 hr
Dec 23, 1:57 AM EST	Mesoscale Discussion	SPC	Crawford, Erie, Mercer	5 hr
Dec 23, 7:01 AM EST	Mesoscale Discussion	SPC	Crawford, Erie	4 hr
Dec 23, 5:00 PM EST	Special Marine Warning	PHI		60 min
Dec 23, 5:00 PM EST	Special Marine Warning	PHI		60 min
Dec 23, 5:00 PM EST	Special Marine Warning	PHI		60 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	505
Tornado Warning	41
Severe Thunderstorm Watch	46
Tornado Watch	6
Mesoscale Discussion	166
Flooding
Flash Flood Warning	206
Marine
Special Marine Warning	61

By county

Every county with at least one alert. A county page lists each alert that covered it.

27 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2003 2005

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.