Weather alerts in Pennsylvania, April 2010

158 weather alerts in April 2010, 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 2010. Tap one for its archive.

Alerts: 158
Warnings: 65
Watches: 18
Advisories: 24
Busiest day: April 16, 201034 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 1, 11:42 PM EDT	Coastal Flood Advisory	PHI	Delaware, Philadelphia	6 hr
Apr 2, 3:54 PM EDT	Fire Weather Watch	CLE	Crawford, Erie	28 hr
Apr 3, 3:33 AM EDT	Fire Weather Watch	CTP	Cambria, Cameron, Clearfield, Elk, McKean, Potter and 2 more	11 hr
Apr 3, 3:50 AM EDT	Fire Weather Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more	12 hr
Apr 3, 10:18 AM EDT	Red Flag Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more	10 hr
Apr 3, 2:50 PM EDT	Red Flag Warning	CTP	Cambria, Cameron, Clearfield, Elk, McKean, Potter and 2 more	5 hr
Apr 3, 4:00 PM EDT	Wind Advisory	CLE	Crawford, Erie	4 hr
Apr 5, 10:00 AM EDT	Fire Weather Watch	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	18 hr
Apr 5, 10:00 AM EDT	Red Flag Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	8 hr
Apr 6, 5:09 AM EDT	Special Weather Statement	CTP	Warren	51 min
Apr 6, 5:20 AM EDT	Mesoscale Discussion	SPC	Blair, Cambria, Cameron, Centre, Clearfield, Elk and 6 more	85 min
Apr 6, 5:44 AM EDT	Special Weather Statement	CTP	Warren	31 min
Apr 6, 6:41 AM EDT	Special Weather Statement	CTP	McKean, Potter	49 min
Apr 6, 6:53 AM EDT	Special Weather Statement	CTP	Cumberland	22 min
Apr 6, 1:29 PM EDT	Mesoscale Discussion	SPC	Erie	61 min
Apr 6, 3:30 PM EDT	Fire Weather Watch	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	13 hr
Apr 7, 3:43 AM EDT	Red Flag Warning	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	15 hr
Apr 7, 4:02 AM EDT	Red Flag Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	17 hr
Apr 7, 4:04 AM EDT	Red Flag Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	16 hr
Apr 7, 10:01 AM EDT	Red Flag Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more	9 hr
Apr 8, 2:33 PM EDT	Special Weather Statement	CTP	McKean	27 min
Apr 8, 2:57 PM EDT	Mesoscale Discussion	SPC	Bradford, Cameron, Centre, Clinton, Columbia, Lackawanna and 10 more	63 min
Apr 8, 3:04 PM EDT	Special Weather Statement	CTP	McKean	11 min
Apr 8, 3:25 PM EDT	Special Weather Statement	CTP	Clearfield	35 min
Apr 8, 3:53 PM EDT	Special Weather Statement	CTP	Elk	37 min
Apr 8, 4:03 PM EDT	Special Weather Statement	CTP	Bedford, Blair, Cambria	27 min
Apr 8, 4:16 PM EDT	Special Weather Statement	CTP	Potter	29 min
Apr 8, 4:29 PM EDT	Special Weather Statement	CTP	Clearfield	31 min
Apr 8, 4:39 PM EDT	Special Weather Statement	CTP	Centre, Huntingdon, Mifflin	36 min
Apr 8, 4:48 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Blair, Bradford, Cameron, Centre, Clinton and 27 more	5 hr
Apr 8, 4:56 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	34 min
Apr 8, 5:03 PM EDT	Special Weather Statement	CTP	Franklin	27 min
Apr 8, 5:19 PM EDT	Special Weather Statement	CTP	Clinton, Juniata, Mifflin	26 min
Apr 8, 5:25 PM EDT	Special Weather Statement	CTP	Cameron	35 min
Apr 8, 5:34 PM EDT	Special Weather Statement	CTP	Adams, Cumberland, Perry	26 min
Apr 8, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Centre, Clinton, Cumberland, Dauphin, Franklin and 10 more	59 min
Apr 8, 5:57 PM EDT	Special Weather Statement	CTP	Potter	33 min
Apr 8, 6:34 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 5 more	41 min
Apr 8, 6:35 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	40 min
Apr 8, 7:10 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	65 min
Apr 8, 7:27 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 3 more	63 min
Apr 8, 7:29 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	61 min
Apr 8, 7:35 PM EDT	Mesoscale Discussion	SPC	Bradford, Carbon, Columbia, Lackawanna, Luzerne, Monroe and 6 more	115 min
Apr 8, 7:40 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	65 min
Apr 8, 7:54 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	66 min
Apr 8, 8:08 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Pike, Susquehanna, Wayne	52 min
Apr 8, 8:57 PM EDT	Severe Thunderstorm Warning	BGM	Pike, Wayne	63 min
Apr 8, 9:00 PM EDT	Mesoscale Discussion	SPC	Pike, Wayne	60 min
Apr 8, 9:25 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	37 min
Apr 8, 9:56 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	28 min
Apr 9, 3:39 PM EDT	Fire Weather Watch	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	13 hr
Apr 10, 10:50 AM EDT	Red Flag Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	8 hr
Apr 10, 11:00 AM EDT	Red Flag Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	8 hr
Apr 13, 2:52 PM EDT	Frost Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Juniata, Lancaster and 8 more	17 hr
Apr 13, 3:30 PM EDT	Frost Advisory	PHI	Berks, Lehigh, Northampton	17 hr
Apr 14, 2:00 AM EDT	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	8 hr
Apr 14, 3:32 PM EDT	Frost Advisory	PHI	Lehigh, Northampton	16 hr
Apr 16, 12:44 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Blair, Butler, Cambria and 16 more	2 hr
Apr 16, 1:28 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 42 more	7 hr
Apr 16, 2:01 PM EDT	Special Weather Statement	CTP	Somerset	44 min
Apr 16, 2:30 PM EDT	Special Weather Statement	CTP	Blair	15 min
Apr 16, 2:34 PM EDT	Special Weather Statement	CTP	Cambria	11 min
Apr 16, 3:02 PM EDT	Special Weather Statement	CTP	Montour	43 min
Apr 16, 3:04 PM EDT	Special Weather Statement	CTP	Cambria	26 min
Apr 16, 3:06 PM EDT	Special Weather Statement	CTP	Franklin, Fulton	39 min
Apr 16, 3:23 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Lawrence and 2 more	67 min
Apr 16, 3:35 PM EDT	Special Weather Statement	CTP	Clearfield	85 min
Apr 16, 3:39 PM EDT	Special Weather Statement	CTP	Fulton	51 min
Apr 16, 3:44 PM EDT	Special Weather Statement	CTP	Adams, Franklin, York	76 min
Apr 16, 3:47 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	58 min
Apr 16, 4:03 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson, Westmoreland	57 min
Apr 16, 4:21 PM EDT	Special Weather Statement	CTP	Bedford, Fulton, Somerset	39 min
Apr 16, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	49 min
Apr 16, 4:28 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Centre, Clearfield, Franklin and 4 more	62 min
Apr 16, 4:34 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 37 more	86 min
Apr 16, 4:43 PM EDT	Special Weather Statement	CTP	Carbon	47 min
Apr 16, 4:49 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Mifflin, Snyder, Union	56 min
Apr 16, 5:08 PM EDT	Special Weather Statement	CTP	Potter, Tioga	52 min
Apr 16, 5:23 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Centre, Cumberland, Franklin, Fulton, Huntingdon and 3 more	52 min
Apr 16, 5:27 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin, York	48 min
Apr 16, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more	59 min
Apr 16, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	69 min
Apr 16, 6:14 PM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Berks and 34 more	61 min
Apr 16, 6:22 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	23 min
Apr 16, 6:26 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	49 min
Apr 16, 6:33 PM EDT	Special Weather Statement	CTP	Columbia	57 min
Apr 16, 6:40 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lebanon, Northumberland, Schuylkill	65 min
Apr 16, 6:44 PM EDT	Severe Thunderstorm Warning	PHI	Berks	61 min
Apr 16, 6:49 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon, York	56 min
Apr 16, 7:05 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton	40 min
Apr 16, 7:41 PM EDT	Severe Thunderstorm Warning	PHI	Chester	34 min
Apr 19, 3:55 AM EDT	Frost Advisory	BGM	Lackawanna, Luzerne	28 hr
Apr 19, 2:33 PM EDT	Frost Advisory	CTP	Adams, Centre, Clinton, Columbia, Cumberland, Dauphin and 15 more	17 hr
Apr 19, 4:18 PM EDT	Frost Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	16 hr
Apr 22, 4:33 AM EDT	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Juniata, Lancaster and 7 more	4 hr
Apr 22, 11:00 AM EDT	Frost Advisory	BGM	Lackawanna, Luzerne	21 hr
Apr 22, 2:23 PM EDT	Frost Advisory	PBZ	Allegheny, Beaver, Washington	18 hr
Apr 22, 2:31 PM EDT	Special Weather Statement	CTP	Snyder	59 min
Apr 22, 2:54 PM EDT	Special Weather Statement	CTP	Juniata, Mifflin, Northumberland, Perry, Snyder	66 min
Apr 22, 2:56 PM EDT	Frost Advisory	CLE	Crawford, Erie	17 hr
Apr 22, 3:27 PM EDT	Frost Advisory	PHI	Carbon, Monroe	17 hr
Apr 22, 4:08 PM EDT	Special Weather Statement	CTP	Juniata	37 min
Apr 22, 4:43 PM EDT	Special Weather Statement	CTP	Cumberland, Dauphin, Lebanon, Northumberland, Perry	47 min
Apr 22, 5:32 PM EDT	Special Weather Statement	CTP	Juniata, Mifflin	43 min
Apr 23, 2:41 PM EDT	Frost Advisory	CTP	Centre, Clinton, Columbia, Juniata, Lycoming, Mifflin and 5 more	17 hr
Apr 23, 3:34 PM EDT	Frost Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	16 hr
Apr 23, 3:47 PM EDT	Frost Advisory	BGM	Lackawanna, Luzerne	16 hr
Apr 25, 10:56 AM EDT	Mesoscale Discussion	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 12 more	2 hr
Apr 25, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	6 hr
Apr 25, 2:26 PM EDT	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Bedford, Blair, Butler and 16 more	94 min
Apr 25, 2:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Greene, Washington	49 min
Apr 25, 3:09 PM EDT	Special Weather Statement	CTP	Cambria	36 min
Apr 25, 3:43 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	47 min
Apr 25, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Washington, Westmoreland	45 min
Apr 25, 3:49 PM EDT	Areal Flood Advisory	CTP	Cambria, Somerset	3 hr
Apr 25, 3:50 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	55 min
Apr 25, 3:55 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	65 min
Apr 25, 4:16 PM EDT	Flash Flood Warning	CTP	Cambria, Somerset	3 hr
Apr 25, 4:37 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson	38 min
Apr 25, 4:37 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Bedford, Blair, Cambria, Cameron, Centre and 18 more	6 hr
Apr 25, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Huntingdon	65 min
Apr 25, 4:50 PM EDT	Special Weather Statement	CTP	Union	25 min
Apr 25, 4:54 PM EDT	Areal Flood Advisory	CTP	Blair, Centre, Huntingdon	3 hr
Apr 25, 4:54 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	36 min
Apr 25, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Huntingdon, Somerset	56 min
Apr 25, 5:12 PM EDT	Tornado Warning	CTP	Bedford, Blair	33 min
Apr 25, 5:22 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson, Venango	38 min
Apr 25, 5:24 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Mercer, Venango	36 min
Apr 25, 5:31 PM EDT	Special Weather Statement	CTP	Union	29 min
Apr 25, 6:01 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Juniata, Perry	59 min
Apr 25, 6:12 PM EDT	Special Weather Statement	CTP	Huntingdon	33 min
Apr 25, 6:16 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Blair, Cambria, Cameron, Centre and 18 more	89 min
Apr 25, 8:53 PM EDT	Mesoscale Discussion	SPC	Adams, Cumberland	2 hr
Apr 26, 4:10 AM EDT	Coastal Flood Advisory	PHI	Delaware, Philadelphia	23 hr
Apr 27, 3:17 AM EDT	Freeze Watch	PBZ	Allegheny, Beaver, Greene, Washington	11 hr
Apr 27, 3:30 AM EDT	Freeze Warning	PHI	Carbon, Lehigh, Monroe, Northampton	28 hr
Apr 27, 5:41 AM EDT	Freeze Watch	CTP	Bedford, Blair, Centre, Clinton, Columbia, Fulton and 12 more	9 hr
Apr 27, 10:04 AM EDT	Freeze Watch	BGM	Lackawanna, Luzerne	5 hr
Apr 27, 2:23 PM EDT	Frost Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	15 hr
Apr 27, 2:23 PM EDT	Freeze Warning	CTP	Bedford, Blair, Centre, Clinton, Columbia, Fulton and 12 more	19 hr
Apr 27, 2:31 PM EDT	Freeze Warning	PBZ	Allegheny, Beaver, Greene, Washington	18 hr
Apr 27, 2:34 PM EDT	Fire Weather Watch	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	14 hr
Apr 27, 2:52 PM EDT	Freeze Warning	BGM	Lackawanna, Luzerne	19 hr
Apr 27, 3:45 PM EDT	Frost Advisory	CLE	Crawford, Erie	16 hr
Apr 28, 4:03 AM EDT	Freeze Warning	PHI	Carbon, Lehigh, Monroe, Northampton	28 hr
Apr 28, 4:12 AM EDT	Fire Weather Watch	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	16 hr
Apr 28, 4:12 AM EDT	Red Flag Warning	PHI	Delaware, Philadelphia	16 hr
Apr 28, 4:23 AM EDT	Freeze Warning	BGM	Lackawanna, Luzerne	28 hr
Apr 28, 4:29 AM EDT	Fire Weather Watch	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	10 hr
Apr 28, 5:34 AM EDT	Freeze Watch	CTP	Bedford, Blair, Centre, Clinton, Lycoming, Somerset and 2 more	9 hr
Apr 28, 2:23 PM EDT	Freeze Warning	CTP	Bedford, Blair, Centre, Clinton, Columbia, Lycoming and 3 more	15 hr
Apr 28, 2:36 PM EDT	Fire Weather Watch	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	15 hr
Apr 28, 2:53 PM EDT	Red Flag Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	29 hr
Apr 28, 3:01 PM EDT	Frost Advisory	CLE	Crawford, Erie	17 hr
Apr 28, 3:01 PM EDT	Freeze Warning	CLE	Crawford, Erie	13 hr
Apr 28, 3:09 PM EDT	Frost Advisory	PBZ	Allegheny, Beaver, Greene, Washington	18 hr
Apr 28, 7:55 PM EDT	Red Flag Warning	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	24 hr
Apr 29, 5:22 AM EDT	Red Flag Warning	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	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	42
Tornado Warning	1
Severe Thunderstorm Watch	4
Mesoscale Discussion	12
Special Weather Statement	39
Flooding
Flash Flood Warning	1
Areal Flood Advisory	2
Cold
Freeze Warning	8
Freeze Watch	4
Frost Advisory	17
Wind and dust
Wind Advisory	1
Fire
Red Flag Warning	13
Fire Weather Watch	10
Fog and smoke
Dense Fog Advisory	2
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 2009 2011

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. Warning verification from the Mesonet's Cow. Rebuilt daily.