Weather alerts in Pennsylvania, May 2025

259 weather alerts in May 2025, 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 2025. Tap one for its archive.

Alerts: 259
Warnings: 171
Watches: 25
Advisories: 18
Busiest day: May 16, 202550 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, 12:12 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Butler, Greene, Lawrence, Washington	2 hr
May 1, 1:22 PM EDT	Severe Thunderstorm Watch	SPC	Armstrong, Beaver, Butler, Clarion, Crawford, Erie and 6 more	6 hr
May 1, 2:43 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 8 more	92 min
May 1, 3:15 PM EDT	Special Weather Statement	CLE	Crawford	45 min
May 1, 3:27 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	48 min
May 1, 4:22 PM EDT	Mesoscale Discussion	SPC	Bedford, Franklin, Fulton	83 min
May 1, 4:38 PM EDT	Severe Thunderstorm Warning	CLE	Erie	52 min
May 1, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	35 min
May 1, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton	51 min
May 1, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	49 min
May 1, 5:53 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	52 min
May 1, 5:56 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	34 min
May 1, 5:58 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	47 min
May 1, 6:11 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	49 min
May 1, 6:29 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	46 min
May 1, 6:32 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Indiana, Westmoreland	43 min
May 1, 6:35 PM EDT	Special Weather Statement	CLE	Crawford	40 min
May 1, 6:35 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Blair, Cambria, Centre, Clearfield and 13 more	4 hr
May 1, 6:42 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	33 min
May 1, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Bedford	31 min
May 1, 7:12 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	48 min
May 1, 7:12 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	37 min
May 1, 7:44 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield	46 min
May 1, 7:54 PM EDT	Tornado Warning	CTP	Clearfield	21 min
May 1, 8:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	38 min
May 1, 8:30 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Juniata, Perry	45 min
May 1, 10:06 PM EDT	Mesoscale Discussion	SPC	Bedford, Blair, Cambria, Centre, Clearfield, Clinton and 6 more	114 min
May 2, 11:43 AM EDT	Mesoscale Discussion	SPC	Beaver, Butler, Crawford, Lawrence, Mercer, Venango	2 hr
May 2, 12:49 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 11 more	7 hr
May 2, 2:58 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 4 more	2 hr
May 2, 3:37 PM EDT	Special Weather Statement	CLE	Crawford	53 min
May 2, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	51 min
May 2, 3:57 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	48 min
May 2, 4:07 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	38 min
May 2, 4:08 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	37 min
May 2, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	42 min
May 2, 4:35 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	40 min
May 2, 4:43 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	32 min
May 2, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	45 min
May 2, 4:51 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	39 min
May 2, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	26 min
May 2, 5:02 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	12 min
May 2, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	36 min
May 2, 5:13 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	47 min
May 2, 5:15 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	28 min
May 2, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	49 min
May 2, 5:42 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bradford, Butler, Cameron and 24 more	2 hr
May 2, 6:04 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	41 min
May 2, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	34 min
May 3, 12:23 PM EDT	Special Weather Statement	BGM	Pike	37 min
May 3, 1:03 PM EDT	Special Weather Statement	BGM	Pike	42 min
May 3, 2:50 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Chester, Cumberland, Dauphin, Franklin and 5 more	115 min
May 3, 4:36 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Lancaster, York	5 hr
May 3, 4:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
May 3, 5:51 PM EDT	Severe Thunderstorm Watch	SPC	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	4 hr
May 3, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Chester	44 min
May 3, 6:46 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Delaware, Lancaster, Montgomery and 2 more	59 min
May 3, 7:32 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	3 hr
May 3, 7:34 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	41 min
May 3, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	50 min
May 3, 8:47 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	43 min
May 3, 9:50 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	17 min
May 4, 2:34 PM EDT	Mesoscale Discussion	SPC	Beaver, Greene, Washington	2 hr
May 4, 6:21 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	39 min
May 4, 6:42 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	43 min
May 4, 6:57 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	33 min
May 4, 7:12 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Butler, Cambria, Clarion, Fayette and 5 more	2 hr
May 4, 7:24 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	36 min
May 4, 7:25 PM EDT	Flash Flood Warning	BGM	Lackawanna, Susquehanna, Wayne	3 hr
May 4, 7:52 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	20 min
May 4, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	47 min
May 4, 8:03 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	22 min
May 4, 8:32 PM EDT	Flash Flood Warning	PBZ	Armstrong	3 hr
May 4, 8:46 PM EDT	Flash Flood Warning	PBZ	Allegheny, Armstrong, Butler, Westmoreland	3 hr
May 4, 9:41 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	25 min
May 4, 10:05 PM EDT	Flash Flood Warning	PBZ	Armstrong, Butler, Lawrence, Mercer, Venango	4 hr
May 4, 11:35 PM EDT	Areal Flood Advisory	CLE	Crawford	109 min
May 5, 12:50 AM EDT	Areal Flood Warning	BGM	Wayne	3 hr
May 5, 4:22 AM EDT	Dense Fog Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more	5 hr
May 5, 1:02 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Crawford and 8 more	118 min
May 5, 2:16 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Franklin, Fulton, Somerset	119 min
May 5, 4:01 PM EDT	Special Weather Statement	CLE	Erie	44 min
May 5, 4:01 PM EDT	Tornado Warning	CTP	Mifflin	14 min
May 5, 4:07 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Butler, Greene, Lawrence, Mercer and 2 more	5 hr
May 5, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
May 5, 4:34 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Washington, Westmoreland	17 min
May 5, 5:28 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	32 min
May 5, 5:29 PM EDT	Mesoscale Discussion	SPC	Franklin, Fulton	2 hr
May 5, 6:01 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Franklin, York	5 hr
May 5, 7:25 PM EDT	Flash Flood Warning	BGM	Bradford	2 hr
May 5, 8:06 PM EDT	Flash Flood Warning	CTP	Tioga	3 hr
May 5, 8:11 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 10 more	2 hr
May 5, 9:38 PM EDT	Flash Flood Warning	CTP	Adams, Cumberland, Franklin	3 hr
May 6, 8:32 AM EDT	River Flood Warning	CTP	Centre, Clinton	6 hr
May 6, 10:46 AM EDT	Flood Watch	BGM	Bradford, Susquehanna, Wayne	20 hr
May 6, 10:54 AM EDT	Flood Watch	CTP	Lycoming, Sullivan, Tioga	12 hr
May 6, 12:01 PM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Carbon, Chester, Columbia, Delaware and 15 more	119 min
May 6, 12:46 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	29 min
May 6, 1:06 PM EDT	Severe Thunderstorm Watch	SPC	Berks, Bradford, Bucks, Carbon, Chester, Columbia and 20 more	6 hr
May 6, 1:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks	37 min
May 6, 1:20 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	40 min
May 6, 1:31 PM EDT	Severe Thunderstorm Warning	PHI	Chester	44 min
May 6, 1:55 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder, Union	50 min
May 6, 2:12 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	48 min
May 6, 2:28 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	47 min
May 6, 2:43 PM EDT	Mesoscale Discussion	SPC	Berks, Bradford, Bucks, Carbon, Chester, Columbia and 20 more	92 min
May 6, 2:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh	59 min
May 6, 3:07 PM EDT	Flash Flood Warning	BGM	Bradford, Wyoming	3 hr
May 6, 3:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	50 min
May 6, 3:27 PM EDT	Flash Flood Warning	CTP	Dauphin	77 min
May 6, 3:34 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	41 min
May 6, 3:41 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	49 min
May 6, 3:57 PM EDT	Tornado Warning	PHI	Monroe, Northampton	33 min
May 6, 4:09 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	51 min
May 6, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	57 min
May 6, 4:19 PM EDT	Tornado Warning	BGM	Pike, Wayne	26 min
May 6, 4:19 PM EDT	Tornado Warning	PHI	Monroe	26 min
May 6, 4:23 PM EDT	Flash Flood Warning	BGM	Lackawanna, Susquehanna, Wayne	3 hr
May 6, 4:28 PM EDT	Tornado Warning	BGM	Pike	32 min
May 6, 4:29 PM EDT	Flash Flood Warning	CTP	Tioga	3 hr
May 6, 4:31 PM EDT	Tornado Warning	PHI	Monroe	44 min
May 6, 4:37 PM EDT	Mesoscale Discussion	SPC	Berks, Bradford, Bucks, Carbon, Columbia, Dauphin and 15 more	83 min
May 6, 4:44 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	46 min
May 6, 4:49 PM EDT	Tornado Warning	BGM	Pike	26 min
May 6, 5:18 PM EDT	Severe Thunderstorm Warning	BGM	Pike	42 min
May 6, 5:27 PM EDT	Special Weather Statement	OKX	Pike	48 min
May 6, 5:57 PM EDT	Mesoscale Discussion	SPC	Monroe, Pike, Wayne	2 hr
May 6, 6:13 PM EDT	Severe Thunderstorm Warning	BGM	Pike	47 min
May 7, 5:23 AM EDT	River Flood Warning	BGM	Susquehanna	22 hr
May 7, 11:20 AM EDT	River Flood Warning	BGM	Bradford	17 hr
May 8, 2:46 PM EDT	Flood Watch	BGM	Lackawanna, Luzerne, Pike, Susquehanna, Wayne	37 hr
May 8, 2:56 PM EDT	Flash Flood Warning	BGM	Pike	2 hr
May 8, 4:31 PM EDT	Flash Flood Warning	CTP	Centre, Clinton, Union	2 hr
May 8, 4:40 PM EDT	Flash Flood Warning	CTP	Centre	2 hr
May 9, 2:19 AM EDT	Frost Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	30 hr
May 9, 2:38 AM EDT	Frost Advisory	CLE	Crawford, Erie	29 hr
May 9, 2:52 AM EDT	Frost Advisory	CTP	Cambria, Clearfield, Elk, McKean, Somerset, Warren	29 hr
May 9, 11:20 AM EDT	River Flood Warning	BGM	Susquehanna	55 hr
May 12, 5:36 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	36 hr
May 13, 4:15 AM EDT	Flood Watch	CTP	Adams, Bedford, Blair, Franklin, Fulton, Huntingdon and 1 more	24 hr
May 13, 1:20 PM EDT	Areal Flood Warning	CTP	Bedford, Somerset	3 hr
May 13, 3:20 PM EDT	Flash Flood Warning Considerable damage threat	CTP	Bedford, Somerset	3 hr
May 13, 6:16 PM EDT	Areal Flood Warning	CTP	Bedford, Somerset	12 hr
May 13, 7:54 PM EDT	Areal Flood Warning	CTP	Bedford, Fulton	10 hr
May 13, 9:52 PM EDT	River Flood Warning	PBZ	Fayette	11 hr
May 13, 10:06 PM EDT	River Flood Warning	CTP	Somerset	10 hr
May 14, 12:27 AM EDT	Areal Flood Warning	CTP	Franklin	3 hr
May 14, 2:48 AM EDT	River Flood Warning	CTP	Huntingdon	25 hr
May 14, 9:13 AM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	22 hr
May 14, 10:42 AM EDT	Flood Watch	PBZ	Fayette, Westmoreland	9 hr
May 14, 11:14 AM EDT	Flood Watch	CTP	Bedford, Somerset	13 hr
May 14, 12:09 PM EDT	Flash Flood Warning	PHI	Bucks, Montgomery, Philadelphia	4 hr
May 14, 5:30 PM EDT	Flash Flood Warning	PBZ	Allegheny	68 min
May 14, 8:16 PM EDT	Dense Fog Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	13 hr
May 15, 6:10 AM EDT	River Flood Warning	CTP	Cumberland	23 hr
May 15, 6:39 AM EDT	Flash Flood Warning	CTP	Adams, Cumberland, York	2 hr
May 15, 9:34 AM EDT	Coastal Flood Advisory	PHI	Bucks	46 hr
May 15, 3:50 PM EDT	Flood Watch	CTP	Bedford, Somerset	17 hr
May 15, 4:56 PM EDT	Flash Flood Warning	PHI	Bucks	44 min
May 15, 9:34 PM EDT	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	12 hr
May 16, 4:31 AM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	44 min
May 16, 4:36 AM EDT	Mesoscale Discussion	SPC	Armstrong, Butler, Clarion, Crawford, Elk, Erie and 7 more	84 min
May 16, 4:38 AM EDT	Mesoscale Discussion	SPC	Armstrong, Butler, Clarion, Crawford, Elk, Erie and 7 more	97 min
May 16, 4:56 AM EDT	Severe Thunderstorm Warning	CTP	Warren	49 min
May 16, 5:12 AM EDT	Special Weather Statement	CLE	Crawford	48 min
May 16, 5:23 AM EDT	Severe Thunderstorm Warning	CLE	Crawford	37 min
May 16, 5:44 AM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	46 min
May 16, 8:47 AM EDT	Special Weather Statement	BGM	Bradford	43 min
May 16, 9:08 AM EDT	Flash Flood Warning	CTP	Lycoming	2 hr
May 16, 9:46 AM EDT	Mesoscale Discussion	SPC	Berks, Chester, Delaware, Lancaster, Lebanon, Montgomery and 1 more	119 min
May 16, 9:50 AM EDT	Special Weather Statement	BGM	Luzerne	55 min
May 16, 10:06 AM EDT	Severe Thunderstorm Watch	SPC	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 3 more	6 hr
May 16, 10:24 AM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	66 min
May 16, 11:16 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	59 min
May 16, 11:22 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Montgomery, Philadelphia	53 min
May 16, 11:32 AM EDT	Flash Flood Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	4 hr
May 16, 11:41 AM EDT	Flash Flood Warning	PHI	Chester, Delaware	4 hr
May 16, 12:11 PM EDT	Mesoscale Discussion	SPC	Bucks, Delaware, Philadelphia	2 hr
May 16, 12:20 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	40 min
May 16, 12:21 PM EDT	Flash Flood Warning	PHI	Bucks, Montgomery	4 hr
May 16, 1:41 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Blair, Cambria, Fayette, Franklin and 7 more	3 hr
May 16, 2:02 PM EDT	River Flood Warning	PHI	Chester	5 hr
May 16, 2:32 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Bedford, Blair, Butler and 24 more	5 hr
May 16, 2:51 PM EDT	Tornado Warning	PBZ	Greene, Washington	24 min
May 16, 2:55 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon	50 min
May 16, 3:14 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	46 min
May 16, 3:27 PM EDT	Tornado Warning	CTP	Huntingdon, Mifflin	33 min
May 16, 3:29 PM EDT	Areal Flood Warning	PHI	Berks	6 hr
May 16, 3:43 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Juniata, Mifflin	47 min
May 16, 3:53 PM EDT	Areal Flood Warning	PHI	Montgomery	100 min
May 16, 4:14 PM EDT	Mesoscale Discussion	SPC	Adams, Armstrong, Bedford, Blair, Cambria, Centre and 10 more	2 hr
May 16, 4:18 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	57 min
May 16, 4:30 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	75 min
May 16, 4:36 PM EDT	Severe Thunderstorm Watch	SPC	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more	3 hr
May 16, 4:42 PM EDT	Areal Flood Warning	PHI	Montgomery, Philadelphia	4 hr
May 16, 4:55 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton	35 min
May 16, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	89 min
May 16, 5:15 PM EDT	Areal Flood Warning	PHI	Bucks	112 min
May 16, 5:24 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Perry	66 min
May 16, 5:37 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	38 min
May 16, 6:01 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lancaster, Perry, York	44 min
May 16, 6:04 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	41 min
May 16, 6:06 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	24 min
May 16, 6:09 PM EDT	Flash Flood Warning	CTP	Cumberland, Dauphin	2 hr
May 16, 6:37 PM EDT	Special Weather Statement	CLE	Crawford	38 min
May 16, 6:43 PM EDT	Areal Flood Warning	PHI	Philadelphia	113 min
May 16, 6:53 PM EDT	Special Weather Statement	CLE	Crawford	37 min
May 16, 7:08 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	52 min
May 16, 7:32 PM EDT	Severe Thunderstorm Warning	CTP	Warren	58 min
May 16, 8:46 PM EDT	Areal Flood Warning	PHI	Bucks	3 hr
May 16, 9:16 PM EDT	Areal Flood Warning	PHI	Philadelphia	3 hr
May 16, 9:56 PM EDT	Severe Thunderstorm Watch	SPC	Greene, Washington	4 hr
May 17, 12:16 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	29 min
May 17, 12:32 AM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	43 min
May 17, 12:42 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	48 min
May 17, 1:07 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	53 min
May 17, 11:52 AM EDT	Special Weather Statement	CLE	Erie	38 min
May 17, 4:26 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	38 min
May 17, 4:41 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
May 17, 5:14 PM EDT	Special Weather Statement	BGM	Bradford	46 min
May 17, 6:01 PM EDT	Special Weather Statement	BGM	Susquehanna	29 min
May 19, 3:11 AM EDT	Frost Advisory	BGM	Bradford, Susquehanna, Wayne	29 hr
May 19, 3:29 AM EDT	Frost Advisory	PBZ	Clarion, Forest, Jefferson, Venango	28 hr
May 19, 3:34 AM EDT	Frost Advisory	CLE	Crawford, Erie	28 hr
May 19, 3:34 AM EDT	Frost Advisory	CTP	Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 5 more	28 hr
May 20, 12:55 PM EDT	Flood Watch	CTP	Bedford, Somerset	32 hr
May 20, 1:05 PM EDT	Flood Watch	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	31 hr
May 21, 1:46 PM EDT	Mesoscale Discussion	SPC	Allegheny, Beaver, Fayette, Greene, Lawrence, Washington	2 hr
May 21, 2:43 PM EDT	Tornado Watch	SPC	Allegheny, Beaver, Butler, Fayette, Greene, Lawrence and 2 more	4 hr
May 21, 3:42 PM EDT	Flash Flood Warning	PBZ	Beaver, Lawrence	3 hr
May 21, 3:54 PM EDT	Coastal Flood Advisory	PHI	Bucks	7 hr
May 21, 4:30 PM EDT	Flash Flood Warning	PBZ	Butler, Lawrence	3 hr
May 21, 4:33 PM EDT	Tornado Warning	PBZ	Armstrong, Butler	27 min
May 21, 5:00 PM EDT	Tornado Warning	PBZ	Allegheny, Washington, Westmoreland	30 min
May 21, 5:28 PM EDT	Flash Flood Warning	PBZ	Allegheny	2 hr
May 21, 8:12 PM EDT	Flash Flood Warning	PBZ	Butler, Lawrence	3 hr
May 22, 3:38 AM EDT	Beach Hazards Statement	CLE	Erie	45 hr
May 24, 3:52 AM EDT	Beach Hazards Statement	CLE	Erie	14 hr
May 26, 3:05 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Montgomery, Philadelphia	14 hr
May 30, 2:13 AM EDT	Flood Watch	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	28 hr
May 30, 2:29 AM EDT	Flood Watch	CTP	Adams, Lancaster, York	23 hr
May 30, 3:26 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	16 hr
May 30, 3:38 PM EDT	Beach Hazards Statement	CLE	Erie	29 hr
May 30, 5:01 PM EDT	Tornado Watch	SPC	Adams, Bucks, Chester, Delaware, Lancaster, Montgomery and 2 more	7 hr
May 30, 6:02 PM EDT	Flash Flood Warning	PBZ	Fayette, Greene, Washington	5 hr
May 30, 7:09 PM EDT	Flash Flood Warning	PBZ	Greene, Washington	3 hr
May 30, 8:37 PM EDT	Mesoscale Discussion	SPC	Chester, Delaware, Lancaster, Montgomery, Philadelphia	113 min
May 30, 10:03 PM EDT	Areal Flood Warning	PBZ	Greene, Washington	6 hr
May 30, 10:58 PM EDT	Areal Flood Warning	PBZ	Fayette, Greene, Washington	9 hr
May 30, 11:12 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	3 hr
May 30, 11:36 PM EDT	Flash Flood Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
May 31, 12:34 AM EDT	Flash Flood Warning	PHI	Bucks	3 hr
May 31, 1:04 AM EDT	Flash Flood Warning	PHI	Berks, Bucks, Lehigh, Montgomery	4 hr
May 31, 3:19 AM EDT	Areal Flood Warning	CTP	Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 2 more	3 hr
May 31, 5:06 AM EDT	Areal Flood Warning	PHI	Lehigh, Montgomery	5 hr
May 31, 5:43 AM EDT	Flash Flood Warning	BGM	Pike, Wayne	3 hr
May 31, 6:43 AM EDT	River Flood Advisory	PBZ	Allegheny	19 hr
May 31, 8:42 AM EDT	Areal Flood Warning	PHI	Lehigh	4 hr
May 31, 9:33 AM EDT	River Flood Warning	CTP	Lebanon, Schuylkill	15 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	96
Tornado Warning	12
Severe Thunderstorm Watch	12
Tornado Watch	2
Mesoscale Discussion	27
Special Weather Statement	15
Flooding
Areal Flood Warning	17
Flash Flood Warning	36
River Flood Warning	10
Flood Watch	11
Areal Flood Advisory	1
River Flood Advisory	1
Cold
Frost Advisory	7
Fog and smoke
Dense Fog Advisory	3
Coast and beach
Coastal Flood Advisory	6
Beach Hazards Statement	3

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 2024 2026

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.