Weather alerts in Pennsylvania, May 2018

379 weather alerts in May 2018, 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 2018. Tap one for its archive.

Alerts: 379
Warnings: 146
Watches: 19
Advisories: 45
Busiest day: May 15, 201875 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 2, 3:42 AM EDT	Red Flag Warning	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	17 hr
May 2, 3:49 AM EDT	Red Flag Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	17 hr
May 2, 4:45 AM EDT	Red Flag Warning	CTP	Adams, Bedford, Blair, Cameron, Centre, Clearfield and 25 more	16 hr
May 3, 3:35 AM EDT	Red Flag Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	16 hr
May 3, 2:23 PM EDT	Special Weather Statement	CTP	Clearfield	37 min
May 3, 2:47 PM EDT	Special Weather Statement	CTP	Elk	28 min
May 3, 3:13 PM EDT	Special Weather Statement	PBZ	Allegheny, Beaver, Butler	32 min
May 3, 3:20 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	40 min
May 3, 3:45 PM EDT	Special Weather Statement	PBZ	Butler, Clarion	30 min
May 3, 3:46 PM EDT	Special Weather Statement	CTP	Lycoming, Montour, Northumberland, Sullivan, Union	44 min
May 3, 3:52 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	38 min
May 3, 4:00 PM EDT	Special Weather Statement	PBZ	Armstrong, Clarion, Jefferson	60 min
May 3, 4:24 PM EDT	Special Weather Statement	CTP	Columbia, Northumberland, Schuylkill, Snyder	36 min
May 3, 4:27 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Snyder, Union	33 min
May 3, 4:44 PM EDT	Special Weather Statement	BGM	Wyoming	46 min
May 3, 4:47 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	28 min
May 3, 4:57 PM EDT	Special Weather Statement	CTP	Clearfield	33 min
May 3, 4:59 PM EDT	Special Weather Statement	CTP	Schuylkill	46 min
May 3, 5:18 PM EDT	Special Weather Statement	PHI	Carbon, Monroe, Northampton	42 min
May 3, 5:28 PM EDT	Special Weather Statement	CTP	Blair	32 min
May 3, 5:43 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	32 min
May 3, 6:03 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 8 more	2 hr
May 3, 6:09 PM EDT	Special Weather Statement	CTP	Mifflin	36 min
May 3, 6:10 PM EDT	Special Weather Statement	PHI	Lehigh	35 min
May 3, 8:20 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	40 min
May 4, 3:34 AM EDT	Wind Advisory	CLE	Crawford, Erie	14 hr
May 4, 1:04 PM EDT	Mesoscale Discussion	SPC	Crawford, Erie, Forest, Lawrence, McKean, Mercer and 2 more	86 min
May 4, 1:22 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Erie	5 hr
May 4, 2:23 PM EDT	Mesoscale Discussion	SPC	Armstrong, Butler, Cameron, Centre, Clarion, Clearfield and 11 more	97 min
May 4, 2:44 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cambria and 23 more	6 hr
May 4, 3:02 PM EDT	Special Weather Statement	PBZ	Lawrence, Mercer	28 min
May 4, 3:34 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	41 min
May 4, 3:42 PM EDT	Special Weather Statement	CTP	McKean, Warren	48 min
May 4, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer	45 min
May 4, 3:50 PM EDT	Severe Thunderstorm Warning	CTP	Warren	55 min
May 4, 3:56 PM EDT	Severe Thunderstorm Warning	CLE	Erie	20 min
May 4, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Mercer, Venango	50 min
May 4, 4:20 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cambria and 22 more	55 min
May 4, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Lawrence, Mercer, Venango	34 min
May 4, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	89 min
May 4, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Potter	96 min
May 4, 5:21 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver	24 min
May 4, 5:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	83 min
May 4, 5:37 PM EDT	Special Weather Statement	PBZ	Washington	53 min
May 4, 5:51 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Westmoreland	54 min
May 4, 5:52 PM EDT	Mesoscale Discussion	SPC	Carbon, Lackawanna, Luzerne, Monroe, Pike, Susquehanna and 2 more	83 min
May 4, 5:54 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	81 min
May 4, 6:00 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming	90 min
May 4, 6:20 PM EDT	Severe Thunderstorm Watch	SPC	Columbia, Lackawanna, Luzerne, Montour, Northumberland, Pike and 5 more	4 hr
May 4, 6:28 PM EDT	Special Weather Statement	BGM	Bradford	62 min
May 4, 6:33 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	72 min
May 4, 6:34 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	56 min
May 4, 6:43 PM EDT	Special Weather Statement	PBZ	Fayette, Greene, Washington, Westmoreland	62 min
May 4, 6:49 PM EDT	Special Weather Statement	CTP	Clearfield	26 min
May 4, 6:55 PM EDT	Special Weather Statement	CTP	Blair, Huntingdon, Lycoming, Mifflin, Sullivan, Union	80 min
May 4, 7:06 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	54 min
May 4, 7:13 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming	62 min
May 4, 7:33 PM EDT	Special Weather Statement	CTP	Somerset	42 min
May 4, 7:59 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Susquehanna, Wayne	48 min
May 4, 8:04 PM EDT	Special Weather Statement	CTP	Bedford, Fulton, Huntingdon, Juniata, Mifflin, Snyder and 1 more	71 min
May 4, 8:12 PM EDT	Special Weather Statement	CTP	Columbia, Montour, Northumberland	78 min
May 4, 8:23 PM EDT	Mesoscale Discussion	SPC	Blair, Cambria, Centre, Columbia, Fayette, Greene and 8 more	67 min
May 4, 8:34 PM EDT	Special Weather Statement	CTP	Somerset	41 min
May 4, 8:50 PM EDT	Mesoscale Discussion	SPC	Carbon, Columbia, Lackawanna, Luzerne, Monroe, Montour and 8 more	85 min
May 4, 10:03 PM EDT	Special Weather Statement	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	27 min
May 4, 10:28 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	62 min
May 7, 1:15 AM EDT	Dense Fog Advisory	CTP	Bedford, Blair, Cambria, Centre, Clearfield, Clinton and 12 more	8 hr
May 10, 4:10 AM EDT	Special Weather Statement	PBZ	Beaver	50 min
May 10, 4:14 AM EDT	Special Weather Statement	PBZ	Venango	31 min
May 10, 4:37 AM EDT	Special Weather Statement	PBZ	Allegheny	23 min
May 10, 12:04 PM EDT	Special Weather Statement	CTP	Warren	56 min
May 10, 1:22 PM EDT	Special Weather Statement	CTP	Elk, McKean	68 min
May 10, 1:45 PM EDT	Special Weather Statement	PBZ	Allegheny	45 min
May 10, 1:50 PM EDT	Special Weather Statement	PBZ	Armstrong	40 min
May 10, 1:54 PM EDT	Special Weather Statement	PBZ	Indiana	51 min
May 10, 2:13 PM EDT	Special Weather Statement	CTP	Cameron, Potter, Tioga	77 min
May 10, 2:24 PM EDT	Special Weather Statement	CTP	Blair, Cambria, Centre, Clearfield	81 min
May 10, 2:30 PM EDT	Special Weather Statement	PBZ	Westmoreland	30 min
May 10, 2:32 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	43 min
May 10, 2:38 PM EDT	Special Weather Statement	CTP	Cameron	52 min
May 10, 2:46 PM EDT	Special Weather Statement	CTP	Bedford, Cumberland, Perry	74 min
May 10, 2:53 PM EDT	Special Weather Statement	PBZ	Westmoreland	37 min
May 10, 3:03 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	27 min
May 10, 3:07 PM EDT	Special Weather Statement	BGM	Bradford	38 min
May 10, 3:13 PM EDT	Special Weather Statement	CTP	Blair, Cambria, Huntingdon, Mifflin, Somerset	62 min
May 10, 3:21 PM EDT	Special Weather Statement	CTP	Union	39 min
May 10, 3:39 PM EDT	Special Weather Statement	CTP	Mifflin	36 min
May 10, 3:44 PM EDT	Special Weather Statement	CTP	Lycoming, Sullivan	76 min
May 10, 3:52 PM EDT	Special Weather Statement	BGM	Wyoming	53 min
May 10, 3:52 PM EDT	Special Weather Statement	CTP	Adams, Franklin, Fulton	68 min
May 10, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin	56 min
May 10, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin	63 min
May 10, 4:19 PM EDT	Special Weather Statement	CTP	Bedford, Huntingdon, Somerset	56 min
May 10, 4:23 PM EDT	Mesoscale Discussion	SPC	Berks, Carbon, Columbia, Cumberland, Dauphin, Lackawanna and 13 more	97 min
May 10, 4:37 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Northumberland, Perry, Snyder, Union	53 min
May 10, 4:43 PM EDT	Special Weather Statement	BGM	Lackawanna, Luzerne, Wyoming	62 min
May 10, 4:56 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	64 min
May 10, 5:00 PM EDT	Special Weather Statement	CTP	Sullivan	60 min
May 10, 5:06 PM EDT	Special Weather Statement	BGM	Wayne	54 min
May 10, 5:11 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	49 min
May 10, 5:39 PM EDT	Special Weather Statement	BGM	Lackawanna, Luzerne	66 min
May 10, 5:45 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wayne	60 min
May 10, 5:45 PM EDT	Severe Thunderstorm Warning	CTP	York	45 min
May 10, 5:50 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	55 min
May 10, 6:01 PM EDT	Special Weather Statement	BGM	Pike	59 min
May 10, 6:01 PM EDT	Special Weather Statement	CTP	Lebanon	59 min
May 10, 6:14 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	61 min
May 10, 6:17 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	43 min
May 10, 6:22 PM EDT	Severe Thunderstorm Warning	BGM	Pike	53 min
May 10, 6:51 PM EDT	Severe Thunderstorm Warning	PHI	Chester	39 min
May 10, 7:01 PM EDT	Special Weather Statement	PHI	Monroe	29 min
May 10, 7:31 PM EDT	Special Weather Statement	CTP	Lancaster	44 min
May 10, 7:54 PM EDT	Special Weather Statement	PHI	Chester	51 min
May 11, 11:51 PM EDT	Special Weather Statement	PBZ	Armstrong	24 min
May 12, 12:06 AM EDT	Special Weather Statement	CTP	Cambria	54 min
May 12, 12:07 AM EDT	Special Weather Statement	PBZ	Indiana	23 min
May 12, 4:54 AM EDT	Special Weather Statement	CLE	Crawford, Erie	111 min
May 12, 1:51 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bedford, Cambria, Fayette and 5 more	2 hr
May 12, 2:13 PM EDT	Areal Flood Advisory	CTP	Cameron, Clinton, Elk, Lycoming, McKean, Potter and 3 more	5 hr
May 12, 2:45 PM EDT	Special Weather Statement	PBZ	Westmoreland	45 min
May 12, 2:47 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 15 more	8 hr
May 12, 3:07 PM EDT	Special Weather Statement	PBZ	Allegheny	38 min
May 12, 3:17 PM EDT	Special Weather Statement	CTP	Blair, Cambria	43 min
May 12, 3:23 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	67 min
May 12, 3:29 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Indiana, Westmoreland	46 min
May 12, 3:50 PM EDT	Special Weather Statement	CTP	Huntingdon	55 min
May 12, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	51 min
May 12, 3:59 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 4 more	3 hr
May 12, 4:01 PM EDT	Special Weather Statement	PBZ	Greene	29 min
May 12, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton, Huntingdon	63 min
May 12, 4:13 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	32 min
May 12, 4:16 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	59 min
May 12, 4:19 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	56 min
May 12, 4:27 PM EDT	Special Weather Statement	PBZ	Fayette	48 min
May 12, 4:37 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	38 min
May 12, 4:52 PM EDT	Special Weather Statement	CTP	Somerset	53 min
May 12, 4:58 PM EDT	Special Weather Statement	CTP	Blair, Mifflin, Snyder	32 min
May 12, 4:58 PM EDT	Tornado Watch	SPC	Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 4 more	5 hr
May 12, 5:05 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 15 more	115 min
May 12, 5:19 PM EDT	Special Weather Statement	PBZ	Fayette	26 min
May 12, 5:22 PM EDT	Special Weather Statement	CTP	Juniata, Perry	23 min
May 12, 5:30 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	45 min
May 12, 5:34 PM EDT	Special Weather Statement	PBZ	Greene	41 min
May 12, 5:40 PM EDT	Special Weather Statement	CTP	Juniata, Perry	35 min
May 12, 5:48 PM EDT	Areal Flood Advisory	CTP	Bedford, Blair, Cambria, Huntingdon, Somerset	3 hr
May 12, 5:52 PM EDT	Special Weather Statement	CTP	Franklin	53 min
May 12, 6:01 PM EDT	Special Weather Statement	CTP	York	44 min
May 12, 6:08 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	52 min
May 12, 6:12 PM EDT	Special Weather Statement	CTP	Blair, Cambria	48 min
May 12, 6:15 PM EDT	Special Weather Statement	PBZ	Westmoreland	15 min
May 12, 6:16 PM EDT	Special Weather Statement	CTP	Dauphin, Perry	29 min
May 12, 6:21 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cambria, Somerset	39 min
May 12, 6:27 PM EDT	Special Weather Statement	CTP	Adams	48 min
May 12, 6:33 PM EDT	Special Weather Statement	CTP	Blair, Huntingdon	27 min
May 12, 6:39 PM EDT	Special Weather Statement	CTP	Somerset	51 min
May 12, 6:51 PM EDT	Special Weather Statement	PHI	Chester	39 min
May 12, 6:52 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	53 min
May 12, 6:53 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	37 min
May 12, 6:53 PM EDT	Special Weather Statement	PHI	Montgomery, Philadelphia	52 min
May 12, 7:00 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	45 min
May 12, 7:03 PM EDT	Special Weather Statement	CTP	Bedford, Cumberland, Franklin, Fulton	42 min
May 12, 7:10 PM EDT	Areal Flood Advisory	PHI	Chester, Delaware	2 hr
May 12, 7:16 PM EDT	Severe Thunderstorm Warning	PHI	Chester	44 min
May 12, 7:16 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Dauphin, Delaware, Lancaster and 4 more	59 min
May 12, 7:18 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	57 min
May 12, 7:22 PM EDT	Areal Flood Advisory	PBZ	Fayette, Westmoreland	3 hr
May 12, 7:30 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	45 min
May 12, 7:37 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	2 hr
May 12, 7:45 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	45 min
May 12, 7:48 PM EDT	Special Weather Statement	CTP	York	42 min
May 12, 8:00 PM EDT	Areal Flood Advisory	PHI	Delaware, Philadelphia	3 hr
May 12, 8:13 PM EDT	Flash Flood Warning	PBZ	Westmoreland	108 min
May 13, 8:04 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	41 min
May 13, 8:39 AM EDT	Special Weather Statement	PBZ	Armstrong, Indiana	36 min
May 13, 10:56 AM EDT	Special Weather Statement	CTP	Cumberland, York	64 min
May 13, 1:56 PM EDT	Mesoscale Discussion	SPC	Fayette, Greene	2 hr
May 13, 4:22 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	38 min
May 13, 4:28 PM EDT	Severe Thunderstorm Watch	SPC	Bedford, Fayette, Greene, Somerset, Washington, Westmoreland	7 hr
May 13, 4:36 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	69 min
May 13, 4:53 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington	52 min
May 13, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	61 min
May 13, 6:00 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	69 min
May 13, 6:18 PM EDT	Tornado Warning	CTP	Bedford	42 min
May 13, 6:48 PM EDT	Special Weather Statement	CTP	Fulton	27 min
May 13, 7:00 PM EDT	Mesoscale Discussion	SPC	Fayette, Greene, Washington	60 min
May 13, 7:31 PM EDT	Special Weather Statement	CTP	Bedford	44 min
May 13, 7:59 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	22 min
May 13, 8:38 PM EDT	Special Weather Statement	CTP	York	37 min
May 13, 9:29 PM EDT	Special Weather Statement	CTP	Lancaster	31 min
May 13, 9:38 PM EDT	Special Weather Statement	PHI	Chester	52 min
May 13, 10:17 PM EDT	Special Weather Statement	PHI	Chester, Delaware	28 min
May 14, 5:25 AM EDT	Dense Fog Advisory	CLE	Crawford, Erie	4 hr
May 14, 11:56 AM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 13 more	64 min
May 14, 12:29 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 16 more	9 hr
May 14, 1:19 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	41 min
May 14, 1:36 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	39 min
May 14, 1:39 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	36 min
May 14, 1:50 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington	40 min
May 14, 1:59 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	91 min
May 14, 2:31 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	29 min
May 14, 2:45 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	75 min
May 14, 2:49 PM EDT	Areal Flood Advisory	PBZ	Fayette, Washington, Westmoreland	3 hr
May 14, 2:55 PM EDT	Special Weather Statement	PBZ	Fayette	35 min
May 14, 2:59 PM EDT	Flash Flood Warning	PBZ	Fayette, Greene	2 hr
May 14, 3:13 PM EDT	Special Weather Statement	CTP	Franklin, Fulton	32 min
May 14, 3:26 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Blair, Cambria, Cumberland, Fayette and 11 more	2 hr
May 14, 3:59 PM EDT	Areal Flood Advisory	CTP	Somerset	3 hr
May 15, 2:42 AM EDT	Flash Flood Watch	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	20 hr
May 15, 3:40 AM EDT	Flash Flood Watch	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more	21 hr
May 15, 3:47 AM EDT	Flash Flood Watch	CTP	Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 5 more	15 hr
May 15, 3:53 AM EDT	Special Weather Statement	CLE	Erie	52 min
May 15, 8:16 AM EDT	Special Weather Statement	CTP	Tioga	44 min
May 15, 8:29 AM EDT	Special Weather Statement	BGM	Bradford	61 min
May 15, 11:38 AM EDT	Special Weather Statement	CTP	Elk, McKean	52 min
May 15, 11:43 AM EDT	Mesoscale Discussion	SPC	Armstrong, Blair, Bradford, Cambria, Cameron, Carbon and 29 more	3 hr
May 15, 11:44 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	46 min
May 15, 11:56 AM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson	34 min
May 15, 12:00 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk, McKean	75 min
May 15, 12:13 PM EDT	Special Weather Statement	PBZ	Jefferson	32 min
May 15, 12:23 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	52 min
May 15, 12:26 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Bedford, Blair, Bradford and 37 more	7 hr
May 15, 12:43 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clinton, Elk, Potter	47 min
May 15, 12:45 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	45 min
May 15, 12:46 PM EDT	Tornado Warning	CTP	Cameron, Clinton, Elk, Potter	44 min
May 15, 12:58 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Cameron, Clearfield, Clinton, Elk	57 min
May 15, 1:03 PM EDT	Special Weather Statement	CTP	Tioga	42 min
May 15, 1:03 PM EDT	Tornado Watch	SPC	Lackawanna, Pike, Susquehanna, Wayne	4 hr
May 15, 1:14 PM EDT	Special Weather Statement	BGM	Susquehanna	31 min
May 15, 1:14 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	61 min
May 15, 1:20 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	14 min
May 15, 1:25 PM EDT	Tornado Warning	CTP	Clinton, Lycoming, Potter, Tioga	65 min
May 15, 1:33 PM EDT	Special Weather Statement	BGM	Bradford	57 min
May 15, 1:34 PM EDT	Special Weather Statement	CTP	Cambria	41 min
May 15, 1:39 PM EDT	Special Weather Statement	BGM	Susquehanna	51 min
May 15, 1:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton, Lycoming	63 min
May 15, 1:46 PM EDT	Severe Thunderstorm Watch	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	9 hr
May 15, 1:52 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	38 min
May 15, 1:59 PM EDT	Special Weather Statement	CTP	Blair	46 min
May 15, 2:04 PM EDT	Tornado Warning	CTP	Sullivan	41 min
May 15, 2:10 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	65 min
May 15, 2:11 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Huntingdon	49 min
May 15, 2:14 PM EDT	Mesoscale Discussion	SPC	Bedford, Blair, Bradford, Carbon, Centre, Columbia and 21 more	2 hr
May 15, 2:16 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Columbia, Huntingdon, Juniata, Lycoming and 6 more	74 min
May 15, 2:27 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	48 min
May 15, 2:34 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon, Juniata, Mifflin, Perry	56 min
May 15, 2:38 PM EDT	Mesoscale Discussion	SPC	Susquehanna, Wayne	2 hr
May 15, 2:45 PM EDT	Areal Flood Advisory	BGM	Bradford	2 hr
May 15, 2:45 PM EDT	Tornado Warning	CTP	Montour, Northumberland, Snyder, Union	24 min
May 15, 2:48 PM EDT	Tornado Warning	CTP	Columbia, Montour, Northumberland	42 min
May 15, 2:49 PM EDT	Special Weather Statement	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	56 min
May 15, 2:51 PM EDT	Special Weather Statement	CTP	Huntingdon	24 min
May 15, 3:05 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Pike, Wayne	55 min
May 15, 3:06 PM EDT	Areal Flood Advisory	BGM	Lackawanna, Luzerne, Susquehanna, Wyoming	3 hr
May 15, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Juniata, Northumberland, Perry, Schuylkill and 1 more	46 min
May 15, 3:20 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	55 min
May 15, 3:23 PM EDT	Special Weather Statement	CTP	Fulton	37 min
May 15, 3:27 PM EDT	Tornado Warning	BGM	Wayne	33 min
May 15, 3:33 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Carbon, Chester, Cumberland and 13 more	117 min
May 15, 3:34 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	41 min
May 15, 3:45 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Franklin, Fulton, Lancaster, Lebanon and 3 more	60 min
May 15, 3:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Northampton	74 min
May 15, 3:55 PM EDT	Severe Thunderstorm Warning	BGM	Pike	20 min
May 15, 4:12 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	33 min
May 15, 4:14 PM EDT	Tornado Warning	CTP	Cumberland, Dauphin, Perry, York	31 min
May 15, 4:24 PM EDT	Special Weather Statement	PHI	Berks	51 min
May 15, 4:26 PM EDT	Tornado Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	19 min
May 15, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	59 min
May 15, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, York	53 min
May 15, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	64 min
May 15, 5:07 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Lancaster, York	83 min
May 15, 5:12 PM EDT	Severe Thunderstorm Warning	PHI	Chester	63 min
May 15, 5:14 PM EDT	Areal Flood Advisory	PHI	Berks, Chester, Montgomery	2 hr
May 15, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	38 min
May 15, 5:31 PM EDT	Areal Flood Advisory	PHI	Bucks, Lehigh, Montgomery	3 hr
May 15, 5:35 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
May 15, 5:38 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	67 min
May 15, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	52 min
May 15, 6:02 PM EDT	Areal Flood Advisory	CTP	Lancaster, York	118 min
May 15, 6:10 PM EDT	Areal Flood Advisory	PHI	Philadelphia	4 hr
May 15, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Chester	60 min
May 15, 6:35 PM EDT	Severe Thunderstorm Warning	PHI	Chester	40 min
May 15, 6:58 PM EDT	Areal Flood Advisory	PHI	Chester	4 hr
May 16, 1:26 PM EDT	Flood Watch	CTP	Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 5 more	72 hr
May 16, 1:30 PM EDT	Flood Watch	PBZ	Fayette, Greene, Westmoreland	56 hr
May 16, 3:35 PM EDT	Flood Watch	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	3 days
May 16, 4:16 PM EDT	Areal Flood Advisory	CTP	Cambria, Somerset	3 hr
May 16, 6:44 PM EDT	Areal Flood Warning	CTP	Somerset	3 hr
May 16, 6:49 PM EDT	Areal Flood Advisory	PBZ	Washington	75 min
May 16, 7:01 PM EDT	Areal Flood Advisory	PBZ	Allegheny	3 hr
May 16, 7:14 PM EDT	Flash Flood Warning	PBZ	Allegheny	3 hr
May 16, 8:23 PM EDT	Areal Flood Advisory	PBZ	Allegheny, Washington	112 min
May 16, 10:24 PM EDT	Areal Flood Advisory	PBZ	Westmoreland	2 hr
May 16, 10:40 PM EDT	Flash Flood Warning	PBZ	Westmoreland	2 hr
May 17, 2:32 AM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
May 17, 4:26 AM EDT	Areal Flood Advisory	PHI	Bucks	4 hr
May 17, 5:16 AM EDT	Areal Flood Warning	PHI	Chester, Montgomery	6 hr
May 17, 6:01 AM EDT	River Flood Warning	PHI	Chester	7 hr
May 17, 6:29 AM EDT	Areal Flood Advisory	PHI	Bucks, Delaware, Montgomery, Philadelphia	2 hr
May 17, 9:50 AM EDT	River Flood Warning	PHI	Bucks	3 hr
May 17, 10:04 AM EDT	River Flood Warning	PHI	Chester, Delaware	8 hr
May 18, 4:04 AM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	27 hr
May 19, 4:50 PM EDT	Special Weather Statement	PBZ	Allegheny	25 min
May 19, 5:12 PM EDT	Special Weather Statement	PBZ	Allegheny	33 min
May 19, 5:35 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	40 min
May 19, 6:36 PM EDT	Special Weather Statement	CLE	Erie	54 min
May 19, 6:48 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	27 min
May 19, 6:50 PM EDT	Special Weather Statement	PBZ	Westmoreland	25 min
May 19, 6:52 PM EDT	Special Weather Statement	CLE	Crawford	53 min
May 19, 7:20 PM EDT	Areal Flood Advisory	PBZ	Indiana, Westmoreland	3 hr
May 19, 8:04 PM EDT	Special Weather Statement	CTP	Warren	56 min
May 19, 9:27 PM EDT	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	9 hr
May 22, 12:57 PM EDT	Mesoscale Discussion	SPC	Crawford, Lawrence, Mercer	3 hr
May 22, 1:42 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Butler, Crawford, Lawrence, Mercer and 2 more	7 hr
May 22, 3:21 PM EDT	Special Weather Statement	PBZ	Mercer	24 min
May 22, 3:30 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	20 min
May 22, 3:48 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Butler, Crawford, Lawrence, Mercer and 1 more	117 min
May 22, 4:11 PM EDT	Special Weather Statement	PBZ	Lawrence	34 min
May 22, 4:18 PM EDT	Special Weather Statement	PBZ	Lawrence	27 min
May 22, 4:33 PM EDT	Special Weather Statement	CLE	Crawford	27 min
May 22, 4:36 PM EDT	Special Weather Statement	PBZ	Venango	24 min
May 22, 5:22 PM EDT	Special Weather Statement	CTP	McKean	38 min
May 22, 5:44 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	46 min
May 22, 6:07 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	53 min
May 22, 6:36 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Greene and 3 more	114 min
May 22, 6:39 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	33 min
May 22, 6:46 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	44 min
May 22, 7:01 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	30 min
May 22, 7:26 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	36 min
May 22, 7:56 PM EDT	Special Weather Statement	CTP	Lycoming	49 min
May 22, 8:18 PM EDT	Special Weather Statement	PBZ	Fayette	27 min
May 22, 8:33 PM EDT	Special Weather Statement	PBZ	Greene	27 min
May 22, 10:37 PM EDT	Areal Flood Warning	PBZ	Greene	4 hr
May 22, 11:53 PM EDT	Areal Flood Advisory	BGM	Luzerne	3 hr
May 23, 12:24 AM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	3 hr
May 26, 11:38 PM EDT	Flash Flood Watch	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	23 hr
May 27, 6:33 AM EDT	Flash Flood Warning	PHI	Bucks	4 hr
May 27, 7:30 AM EDT	Flash Flood Warning	PHI	Bucks	4 hr
May 27, 8:01 AM EDT	Flash Flood Warning	PHI	Bucks, Chester, Montgomery	4 hr
May 27, 9:17 AM EDT	Areal Flood Advisory	PHI	Bucks	3 hr
May 27, 9:21 AM EDT	River Flood Warning	PHI	Bucks	12 hr
May 27, 9:22 AM EDT	Areal Flood Advisory	PHI	Philadelphia	2 hr
May 27, 9:39 AM EDT	Areal Flood Advisory	PHI	Chester, Delaware, Montgomery	2 hr
May 27, 10:27 AM EDT	Areal Flood Warning	PHI	Bucks	8 hr
May 27, 11:18 AM EDT	Areal Flood Warning	PHI	Bucks	7 hr
May 27, 1:14 PM EDT	Flash Flood Watch	CTP	Adams, Bedford, Cumberland, Franklin, Fulton, Lancaster and 2 more	7 hr
May 27, 2:11 PM EDT	Areal Flood Advisory	CTP	Bedford	3 hr
May 27, 2:43 PM EDT	Special Weather Statement	CTP	Adams	32 min
May 27, 2:52 PM EDT	Special Weather Statement	CTP	York	23 min
May 27, 3:19 PM EDT	Special Weather Statement	CTP	York	41 min
May 27, 3:22 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	12 hr
May 27, 6:07 PM EDT	Areal Flood Warning	PHI	Bucks	4 hr
May 28, 2:16 PM EDT	Mesoscale Discussion	SPC	Bradford, Cameron, Centre, Clearfield, Clinton, Elk and 6 more	2 hr
May 28, 4:13 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	62 min
May 28, 4:40 PM EDT	Special Weather Statement	CTP	Clearfield	35 min
May 28, 4:52 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	38 min
May 28, 4:55 PM EDT	Special Weather Statement	CTP	Centre	35 min
May 28, 5:03 PM EDT	Special Weather Statement	PBZ	Armstrong	27 min
May 28, 5:20 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong	40 min
May 28, 5:24 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	32 min
May 28, 5:29 PM EDT	Special Weather Statement	CTP	Centre	31 min
May 28, 5:46 PM EDT	Areal Flood Advisory	CTP	Centre	3 hr
May 28, 5:57 PM EDT	Special Weather Statement	PBZ	Armstrong	33 min
May 28, 5:59 PM EDT	Special Weather Statement	CTP	Blair	31 min
May 28, 6:29 PM EDT	Special Weather Statement	CTP	Blair	31 min
May 29, 3:11 PM EDT	Special Weather Statement	PBZ	Fayette	34 min
May 29, 4:01 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	29 min
May 29, 7:04 PM EDT	Special Weather Statement	PBZ	Clarion	26 min
May 30, 4:37 AM EDT	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 2 more	4 hr
May 30, 4:43 AM EDT	Dense Fog Advisory	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
May 31, 12:51 PM EDT	Special Weather Statement	CTP	Clearfield	54 min
May 31, 2:10 PM EDT	Areal Flood Advisory	CTP	Clearfield	110 min
May 31, 3:32 PM EDT	Areal Flood Advisory	CTP	Cambria	3 hr
May 31, 3:57 PM EDT	Areal Flood Advisory	CTP	Clearfield	108 min
May 31, 4:05 PM EDT	Special Weather Statement	CTP	McKean	55 min
May 31, 4:10 PM EDT	Areal Flood Advisory	CLE	Crawford, Erie	3 hr
May 31, 4:10 PM EDT	Areal Flood Advisory	CTP	Cambria, Somerset	3 hr
May 31, 4:36 PM EDT	Special Weather Statement	CTP	Cambria	24 min
May 31, 6:22 PM EDT	Flash Flood Warning	CLE	Crawford	3 hr
May 31, 7:26 PM EDT	Special Weather Statement	PBZ	Mercer	34 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	115
Tornado Warning	9
Severe Thunderstorm Watch	9
Tornado Watch	2
Mesoscale Discussion	24
Special Weather Statement	145
Flooding
Areal Flood Warning	6
Flash Flood Warning	8
River Flood Warning	4
Flash Flood Watch	5
Flood Watch	3
Areal Flood Advisory	37
Wind and dust
Wind Advisory	1
Fire
Red Flag Warning	4
Fog and smoke
Dense Fog Advisory	5
Coast and beach
Coastal Flood Advisory	2

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 2017 2019

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.