Weather alerts in Pennsylvania, April 2020

222 weather alerts in April 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in April 2020. Tap one for its archive.

Alerts: 222
Warnings: 81
Watches: 17
Advisories: 42
Busiest day: April 8, 202050 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Apr 3, 2:36 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	23 hr
Apr 7, 4:57 PM EDT	Mesoscale Discussion	SPC	Greene	63 min
Apr 7, 9:07 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Erie	6 hr
Apr 7, 9:30 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	33 hr
Apr 7, 10:04 PM EDT	Mesoscale Discussion	SPC	Beaver, Crawford, Lawrence, Mercer, Venango	86 min
Apr 7, 10:21 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	40 min
Apr 7, 10:54 PM EDT	Mesoscale Discussion	SPC	Armstrong, Blair, Butler, Cambria, Cameron, Centre and 19 more	2 hr
Apr 7, 10:56 PM EDT	Special Weather Statement	CTP	Warren	79 min
Apr 7, 11:04 PM EDT	Special Weather Statement	PBZ	Venango	26 min
Apr 7, 11:12 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	63 min
Apr 7, 11:19 PM EDT	Special Weather Statement	PBZ	Mercer	26 min
Apr 7, 11:27 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	33 min
Apr 7, 11:31 PM EDT	Severe Thunderstorm Warning	PBZ	Forest, Venango	29 min
Apr 7, 11:32 PM EDT	Special Weather Statement	PBZ	Clarion, Jefferson	28 min
Apr 7, 11:35 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	40 min
Apr 7, 11:40 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	6 hr
Apr 7, 11:44 PM EDT	Severe Thunderstorm Warning	CTP	Warren	61 min
Apr 7, 11:47 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Mercer, Venango	43 min
Apr 8, 12:04 AM EDT	Special Weather Statement	PBZ	Jefferson	26 min
Apr 8, 12:10 AM EDT	Special Weather Statement	PBZ	Clarion, Forest, Mercer, Venango	50 min
Apr 8, 12:12 AM EDT	Special Weather Statement	PBZ	Beaver, Butler, Lawrence	48 min
Apr 8, 12:14 AM EDT	Special Weather Statement	CTP	Clearfield	46 min
Apr 8, 12:18 AM EDT	Special Weather Statement	CTP	Elk, McKean	57 min
Apr 8, 12:23 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	52 min
Apr 8, 12:30 AM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer	30 min
Apr 8, 12:37 AM EDT	Tornado Warning	PBZ	Beaver	11 min
Apr 8, 12:45 AM EDT	Special Weather Statement	CTP	Columbia	30 min
Apr 8, 12:47 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	43 min
Apr 8, 1:04 AM EDT	Special Weather Statement	BGM	Luzerne	41 min
Apr 8, 1:11 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Butler, Indiana, Washington, Westmoreland	49 min
Apr 8, 1:16 AM EDT	Special Weather Statement	CTP	Columbia	14 min
Apr 8, 1:17 AM EDT	Tornado Warning	PBZ	Allegheny, Westmoreland	6 min
Apr 8, 1:22 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Indiana, Washington, Westmoreland	39 min
Apr 8, 1:23 AM EDT	Special Weather Statement	CTP	Blair, Cambria, Clearfield	67 min
Apr 8, 1:30 AM EDT	Special Weather Statement	PBZ	Washington	30 min
Apr 8, 1:39 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Indiana, Washington, Westmoreland	51 min
Apr 8, 1:44 AM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	61 min
Apr 8, 1:52 AM EDT	Mesoscale Discussion	SPC	Bedford, Cambria, Fayette, Fulton, Greene, Somerset and 2 more	83 min
Apr 8, 1:53 AM EDT	Special Weather Statement	PBZ	Greene, Washington	37 min
Apr 8, 1:53 AM EDT	Special Weather Statement	PHI	Carbon, Lehigh, Northampton	37 min
Apr 8, 1:55 AM EDT	Special Weather Statement	PHI	Chester, Delaware	50 min
Apr 8, 1:59 AM EDT	Special Weather Statement	PHI	Berks	46 min
Apr 8, 2:06 AM EDT	Special Weather Statement	PBZ	Fayette	24 min
Apr 8, 2:13 AM EDT	Special Weather Statement	CTP	Cumberland, Dauphin, Huntingdon, Juniata, Perry	77 min
Apr 8, 2:14 AM EDT	Severe Thunderstorm Watch	SPC	Bedford, Franklin, Fulton	2 hr
Apr 8, 2:20 AM EDT	Special Weather Statement	CTP	Bedford	25 min
Apr 8, 2:26 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	49 min
Apr 8, 2:30 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	30 min
Apr 8, 2:40 AM EDT	Special Weather Statement	PHI	Lehigh, Northampton	35 min
Apr 8, 2:51 AM EDT	Severe Thunderstorm Warning	CTP	Franklin	39 min
Apr 8, 12:08 PM EDT	Special Weather Statement	CLE	Erie	112 min
Apr 8, 7:19 PM EDT	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	24 hr
Apr 8, 8:43 PM EDT	Wind Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	21 hr
Apr 9, 9:57 AM EDT	Special Weather Statement	CTP	Bedford, Fulton, Huntingdon, Juniata, Mifflin, Montour and 2 more	48 min
Apr 9, 9:57 AM EDT	Special Weather Statement	PBZ	Indiana, Westmoreland	33 min
Apr 9, 10:29 AM EDT	Special Weather Statement	CTP	Blair, Cambria, Centre, Clinton, Somerset	46 min
Apr 9, 10:34 AM EDT	Special Weather Statement	CTP	Columbia, Cumberland, Dauphin, Franklin, Fulton, Juniata and 4 more	41 min
Apr 9, 11:01 AM EDT	Special Weather Statement	BGM	Lackawanna, Luzerne, Wayne	29 min
Apr 9, 11:09 AM EDT	Special Weather Statement	CTP	Bedford, Fulton, Huntingdon, Juniata, Lycoming, Mifflin and 1 more	36 min
Apr 9, 11:09 AM EDT	Mesoscale Discussion	SPC	Berks, Bucks, Chester, Delaware, Lancaster, Lehigh and 3 more	66 min
Apr 9, 11:24 AM EDT	Special Weather Statement	BGM	Pike	51 min
Apr 9, 11:28 AM EDT	Special Weather Statement	CTP	Adams, Lancaster, Lebanon, Schuylkill, York	47 min
Apr 9, 11:44 AM EDT	Special Weather Statement	CTP	Columbia, Cumberland, Franklin, Fulton, Juniata, Montour and 4 more	46 min
Apr 9, 12:01 PM EDT	Special Weather Statement	BGM	Pike	44 min
Apr 9, 12:01 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	29 min
Apr 9, 12:01 PM EDT	Severe Thunderstorm Watch	SPC	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Apr 9, 12:05 PM EDT	Special Weather Statement	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	40 min
Apr 9, 12:06 PM EDT	Special Weather Statement	CTP	Sullivan	24 min
Apr 9, 12:23 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	52 min
Apr 9, 12:25 PM EDT	Special Weather Statement	CTP	Columbia, Dauphin, Lebanon, Schuylkill	35 min
Apr 9, 12:47 PM EDT	Special Weather Statement	CTP	Lancaster	43 min
Apr 9, 12:56 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	34 min
Apr 9, 1:00 PM EDT	Special Weather Statement	CTP	York	30 min
Apr 9, 1:00 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	45 min
Apr 9, 1:12 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	48 min
Apr 9, 1:23 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	52 min
Apr 9, 1:26 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	49 min
Apr 9, 1:33 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Delaware, Philadelphia	42 min
Apr 9, 3:32 PM EDT	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	27 hr
Apr 9, 6:48 PM EDT	Winter Weather Advisory	CLE	Erie	16 hr
Apr 9, 6:58 PM EDT	Special Weather Statement	CTP	Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 3 more	92 min
Apr 9, 9:12 PM EDT	Special Weather Statement	CTP	Blair, Huntingdon	48 min
Apr 9, 11:18 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	42 min
Apr 9, 11:24 PM EDT	Severe Thunderstorm Warning	PHI	Chester	36 min
Apr 9, 11:49 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	41 min
Apr 9, 11:54 PM EDT	Special Weather Statement	PHI	Lehigh	36 min
Apr 10, 2:15 AM EDT	Freeze Watch	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	11 hr
Apr 10, 2:15 AM EDT	Wind Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	17 hr
Apr 10, 3:33 AM EDT	Freeze Watch	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	12 hr
Apr 10, 1:21 PM EDT	Freeze Warning	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	19 hr
Apr 10, 2:40 PM EDT	Freeze Warning	PBZ	Greene	18 hr
Apr 10, 3:29 PM EDT	Freeze Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	18 hr
Apr 11, 2:03 PM EDT	High Wind Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	24 hr
Apr 11, 3:18 PM EDT	High Wind Watch	CLE	Crawford, Erie	23 hr
Apr 11, 3:32 PM EDT	High Wind Watch	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	21 hr
Apr 12, 3:45 AM EDT	High Wind Watch	CTP	Bedford, Blair, Cambria, Cameron, Clearfield, Elk and 5 more	9 hr
Apr 12, 12:25 PM EDT	High Wind Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	29 hr
Apr 12, 12:25 PM EDT	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	29 hr
Apr 12, 12:43 PM EDT	High Wind Warning	CTP	Cambria, Clearfield, Elk, McKean, Somerset, Warren	31 hr
Apr 12, 12:43 PM EDT	Wind Advisory	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	31 hr
Apr 12, 1:44 PM EDT	High Wind Warning	PBZ	Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 3 more	30 hr
Apr 12, 1:44 PM EDT	Wind Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	28 hr
Apr 12, 2:04 PM EDT	High Wind Warning	BGM	Lackawanna, Luzerne, Wayne, Wyoming	32 hr
Apr 12, 2:04 PM EDT	Wind Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	32 hr
Apr 12, 2:10 PM EDT	High Wind Warning	CLE	Crawford, Erie	28 hr
Apr 12, 2:54 PM EDT	Lakeshore Flood Warning	CLE	Erie	31 hr
Apr 12, 3:18 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	30 hr
Apr 13, 4:28 AM EDT	Special Weather Statement	CTP	Bedford	47 min
Apr 13, 5:48 AM EDT	Special Weather Statement	CTP	Huntingdon, Juniata	27 min
Apr 13, 6:11 AM EDT	Areal Flood Advisory	PHI	Berks, Chester, Delaware, Montgomery	4 hr
Apr 13, 6:18 AM EDT	Special Weather Statement	CTP	Franklin	27 min
Apr 13, 6:45 AM EDT	Special Weather Statement	CTP	Adams	45 min
Apr 13, 6:48 AM EDT	Areal Flood Advisory	PHI	Delaware, Montgomery, Philadelphia	4 hr
Apr 13, 7:32 AM EDT	Special Weather Statement	CTP	Lancaster, York	43 min
Apr 13, 8:03 AM EDT	Areal Flood Advisory	PHI	Bucks	4 hr
Apr 13, 9:24 AM EDT	Wind Advisory	BGM	Lackawanna, Luzerne, Wayne, Wyoming	13 hr
Apr 13, 10:34 AM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Chester, Cumberland, Dauphin and 17 more	86 min
Apr 13, 10:58 AM EDT	River Flood Warning	PHI	Chester	6 hr
Apr 13, 11:09 AM EDT	Areal Flood Warning	PHI	Chester, Delaware	3 hr
Apr 13, 11:18 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	27 min
Apr 13, 11:33 AM EDT	Tornado Watch	SPC	Adams, Bedford, Berks, Blair, Bucks, Cambria and 31 more	5 hr
Apr 13, 11:48 AM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield, Somerset	72 min
Apr 13, 12:16 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton	44 min
Apr 13, 12:29 PM EDT	River Flood Warning	PHI	Chester, Delaware	12 hr
Apr 13, 12:32 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	58 min
Apr 13, 12:45 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield, Huntingdon	45 min
Apr 13, 12:52 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	38 min
Apr 13, 1:01 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
Apr 13, 1:06 PM EDT	Severe Thunderstorm Warning	CTP	Adams	53 min
Apr 13, 1:07 PM EDT	Flash Flood Warning	PHI	Berks, Carbon, Lehigh, Northampton	4 hr
Apr 13, 1:20 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Blair, Bucks, Carbon, Centre and 25 more	85 min
Apr 13, 1:25 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Huntingdon, Mifflin	50 min
Apr 13, 1:27 PM EDT	Severe Thunderstorm Warning	PHI	Chester	33 min
Apr 13, 1:37 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	68 min
Apr 13, 1:47 PM EDT	Flash Flood Warning	PHI	Chester	3 hr
Apr 13, 1:56 PM EDT	Special Weather Statement	BGM	Pike	49 min
Apr 13, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Juniata, Lycoming, Mifflin, Perry and 2 more	41 min
Apr 13, 2:09 PM EDT	Areal Flood Advisory	CTP	Adams, Dauphin, Lancaster, Lebanon, York	3 hr
Apr 13, 2:13 PM EDT	Special Weather Statement	BGM	Bradford	47 min
Apr 13, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	58 min
Apr 13, 2:20 PM EDT	Special Weather Statement	CTP	Tioga	25 min
Apr 13, 2:23 PM EDT	Areal Flood Warning	PHI	Montgomery, Philadelphia	4 hr
Apr 13, 2:37 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	2 hr
Apr 13, 2:41 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	49 min
Apr 13, 2:41 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	64 min
Apr 13, 2:42 PM EDT	Mesoscale Discussion	SPC	Bradford, Lackawanna, Pike, Sullivan, Susquehanna, Wayne and 1 more	93 min
Apr 13, 3:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	43 min
Apr 13, 3:50 PM EDT	Areal Flood Advisory	BGM	Lackawanna, Wayne	115 min
Apr 13, 3:51 PM EDT	Special Weather Statement	BGM	Susquehanna, Wayne	54 min
Apr 13, 4:35 PM EDT	Areal Flood Warning	PHI	Montgomery	2 hr
Apr 13, 6:03 PM EDT	Wind Advisory	CLE	Erie	3 hr
Apr 14, 2:51 AM EDT	Freeze Warning	PBZ	Greene	30 hr
Apr 14, 3:34 PM EDT	Frost Advisory	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	39 hr
Apr 15, 2:52 AM EDT	Freeze Watch	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	36 hr
Apr 15, 3:23 AM EDT	Freeze Warning	PBZ	Greene	31 hr
Apr 15, 9:14 PM EDT	Special Weather Statement	CTP	Cambria, Cameron, Clearfield, Clinton, Lycoming, Potter and 2 more	61 min
Apr 15, 10:01 PM EDT	Special Weather Statement	CTP	Bedford, Blair, Cambria, Centre, Clinton, Huntingdon and 1 more	44 min
Apr 16, 4:56 AM EDT	Freeze Watch	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	9 hr
Apr 16, 9:21 AM EDT	Special Weather Statement	CTP	Blair	39 min
Apr 16, 10:07 AM EDT	Special Weather Statement	CTP	Blair	38 min
Apr 16, 10:23 AM EDT	Special Weather Statement	CTP	Cameron, Clearfield, Elk	37 min
Apr 16, 11:01 AM EDT	Special Weather Statement	CTP	Clearfield	44 min
Apr 16, 12:41 PM EDT	Special Weather Statement	CTP	Clinton, Union	64 min
Apr 16, 2:05 PM EDT	Freeze Warning	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	19 hr
Apr 16, 2:55 PM EDT	Special Weather Statement	CTP	Cameron, Clinton, Columbia, Lycoming, Montour, Northumberland and 5 more	110 min
Apr 16, 3:19 PM EDT	Frost Advisory	PHI	Delaware, Philadelphia	18 hr
Apr 16, 3:19 PM EDT	Freeze Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	18 hr
Apr 16, 3:32 PM EDT	Winter Weather Advisory	CLE	Erie	30 hr
Apr 16, 6:02 PM EDT	Special Weather Statement	PHI	Lehigh, Monroe, Northampton	43 min
Apr 16, 7:20 PM EDT	Special Weather Statement	PHI	Monroe	25 min
Apr 17, 3:34 AM EDT	Winter Weather Advisory	BGM	Bradford, Susquehanna, Wayne	30 hr
Apr 17, 4:58 AM EDT	Winter Weather Advisory	CTP	Cameron, Clinton, Elk, Lycoming, McKean, Potter and 3 more	21 hr
Apr 17, 9:35 AM EDT	Winter Weather Advisory	PBZ	Forest	13 hr
Apr 17, 6:55 PM EDT	Mesoscale Discussion	SPC	Bradford, Cameron, Centre, Clearfield, Clinton, Elk and 8 more	4 hr
Apr 18, 3:07 AM EDT	Frost Advisory	PHI	Berks, Bucks, Chester, Montgomery	29 hr
Apr 18, 3:07 AM EDT	Freeze Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	29 hr
Apr 18, 3:34 AM EDT	Frost Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	29 hr
Apr 18, 1:16 PM EDT	Frost Advisory	PBZ	Greene	20 hr
Apr 21, 3:24 AM EDT	Special Weather Statement	CLE	Crawford, Erie	66 min
Apr 21, 3:34 AM EDT	Freeze Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	28 hr
Apr 21, 3:44 AM EDT	Freeze Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	30 hr
Apr 21, 4:18 AM EDT	Freeze Warning	CTP	Adams, Cumberland, Dauphin, Franklin, Fulton, Huntingdon and 10 more	29 hr
Apr 21, 11:33 AM EDT	Special Weather Statement	CTP	Cumberland	42 min
Apr 21, 12:06 PM EDT	Special Weather Statement	CTP	Lancaster, York	69 min
Apr 21, 12:23 PM EDT	Mesoscale Discussion	SPC	Bucks, Chester, Delaware, Lehigh, Montgomery, Northampton and 1 more	2 hr
Apr 21, 12:48 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Montgomery	42 min
Apr 21, 1:04 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Northampton, Philadelphia	26 min
Apr 21, 1:27 PM EDT	Severe Thunderstorm Watch	SPC	Bucks, Chester, Delaware, Montgomery, Philadelphia	3 hr
Apr 21, 1:28 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	32 min
Apr 21, 1:38 PM EDT	Special Weather Statement	PHI	Chester, Delaware	52 min
Apr 21, 1:49 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	56 min
Apr 21, 1:59 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	61 min
Apr 21, 3:03 PM EDT	Special Weather Statement	CTP	Columbia, Montour	42 min
Apr 21, 9:21 PM EDT	Special Weather Statement	CTP	Cameron, Elk	54 min
Apr 21, 10:20 PM EDT	Special Weather Statement	CTP	Clinton	55 min
Apr 22, 3:03 PM EDT	Frost Advisory	PHI	Chester, Montgomery	16 hr
Apr 22, 3:03 PM EDT	Freeze Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	16 hr
Apr 25, 3:20 AM EDT	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	3 hr
Apr 25, 3:32 AM EDT	Dense Fog Advisory	CTP	Dauphin, Lancaster, Lebanon, Schuylkill, York	4 hr
Apr 27, 3:12 PM EDT	Frost Advisory	PHI	Lehigh, Northampton	17 hr
Apr 29, 3:07 AM EDT	Flood Watch	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	49 hr
Apr 29, 3:14 AM EDT	Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	48 hr
Apr 29, 3:33 AM EDT	Flood Watch	CTP	Adams, Bedford, Blair, Centre, Clinton, Columbia and 19 more	50 hr
Apr 29, 3:15 PM EDT	Wind Advisory	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	29 hr
Apr 29, 9:38 PM EDT	Special Weather Statement	PBZ	Allegheny, Beaver, Greene, Washington	37 min
Apr 29, 10:15 PM EDT	Special Weather Statement	PBZ	Lawrence, Mercer	60 min
Apr 29, 10:18 PM EDT	Special Weather Statement	PBZ	Beaver	42 min
Apr 30, 4:00 AM EDT	High Wind Warning	PHI	Delaware, Philadelphia	16 hr
Apr 30, 10:20 AM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	13 hr
Apr 30, 10:59 AM EDT	Areal Flood Advisory	CTP	Adams, Centre, Clinton, Cumberland, Juniata, Lycoming and 6 more	6 hr
Apr 30, 1:22 PM EDT	Special Weather Statement	CTP	Columbia, Dauphin, Lancaster, Lebanon, Montour, Northumberland and 3 more	113 min
Apr 30, 1:34 PM EDT	Areal Flood Advisory	CTP	Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 4 more	6 hr
Apr 30, 1:42 PM EDT	River Flood Warning	CTP	Perry	22 hr
Apr 30, 2:12 PM EDT	Areal Flood Warning	CTP	Adams, Clinton, Cumberland, Juniata, Lycoming, Northumberland and 5 more	6 hr
Apr 30, 3:47 PM EDT	Areal Flood Advisory	BGM	Bradford	6 hr
Apr 30, 4:39 PM EDT	Areal Flood Warning	CTP	Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 4 more	6 hr
Apr 30, 4:47 PM EDT	Areal Flood Warning	BGM	Bradford	9 hr
Apr 30, 5:16 PM EDT	Areal Flood Advisory	PHI	Berks, Chester	4 hr
Apr 30, 5:38 PM EDT	Areal Flood Advisory	BGM	Bradford, Wyoming	6 hr
Apr 30, 5:43 PM EDT	Areal Flood Warning	CTP	Tioga	3 hr
Apr 30, 6:34 PM EDT	Areal Flood Advisory	BGM	Lackawanna, Luzerne, Susquehanna, Wyoming	5 hr
Apr 30, 7:02 PM EDT	River Flood Warning	CTP	Snyder, Union	19 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	47
Tornado Warning	2
Severe Thunderstorm Watch	5
Tornado Watch	1
Mesoscale Discussion	10
Special Weather Statement	72
Flooding
Areal Flood Warning	7
Flash Flood Warning	2
River Flood Warning	4
Flood Watch	3
Areal Flood Advisory	13
Winter
Winter Weather Advisory	5
Cold
Freeze Warning	12
Freeze Watch	4
Frost Advisory	7
Wind and dust
High Wind Warning	6
High Wind Watch	4
Wind Advisory	11
Fog and smoke
Dense Fog Advisory	2
Coast and beach
Lakeshore Flood Warning	1
Coastal Flood Advisory	4

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 2019 2021

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.