Weather alerts in Pennsylvania, May 2004

309 weather alerts in May 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 May 2004. Tap one for its archive.

Alerts: 309
Warnings: 234
Watches: 18
Advisories: 0
Busiest day: May 21, 200447 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
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

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	174
Tornado Warning	8
Severe Thunderstorm Watch	15
Tornado Watch	3
Mesoscale Discussion	57
Flooding
Flash Flood Warning	43
Marine
Special Marine Warning	9

By county

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

27 more counties

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.