Weather alerts in Pennsylvania, December 2012

89 weather alerts in December 2012, 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 December 2012. Tap one for its archive.

Alerts: 89
Warnings: 21
Watches: 9
Advisories: 46
Busiest day: December 21, 201217 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
Dec 1, 7:09 PM EST	Dense Fog Advisory	PHI	Berks, Carbon, Delaware, Lehigh, Monroe, Northampton and 1 more	14 hr
Dec 1, 7:24 PM EST	Dense Fog Advisory	BGM	Lackawanna, Luzerne, Pike, Wayne	14 hr
Dec 2, 1:10 AM EST	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	8 hr
Dec 3, 2:05 AM EST	Dense Fog Advisory	CLE	Crawford, Erie	8 hr
Dec 6, 2:53 PM EST	Freezing Rain Advisory	CTP	Bedford, Blair, Cameron, Centre, Clinton, Columbia and 13 more	20 hr
Dec 7, 3:20 AM EST	Freezing Rain Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	8 hr
Dec 7, 3:44 AM EST	Mesoscale Discussion	SPC	Bradford, Cameron, Centre, Clearfield, Clinton, Columbia and 15 more	6 hr
Dec 7, 6:42 AM EST	Freezing Rain Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	5 hr
Dec 7, 7:22 AM EST	Special Weather Statement	PBZ	Jefferson	38 min
Dec 9, 7:23 PM EST	Dense Fog Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	14 hr
Dec 10, 3:15 PM EST	Special Weather Statement	PBZ	Fayette, Greene, Indiana, Westmoreland	60 min
Dec 15, 3:28 PM EST	Freezing Rain Advisory	PHI	Carbon, Monroe	12 hr
Dec 15, 3:42 PM EST	Freezing Rain Advisory	BGM	Pike, Wayne	18 hr
Dec 16, 8:41 PM EST	Dense Fog Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	16 hr
Dec 16, 8:52 PM EST	Dense Fog Advisory	CTP	Lancaster, York	12 hr
Dec 17, 2:38 PM EST	Dense Fog Advisory	CTP	Adams, Lancaster, York	13 hr
Dec 17, 3:27 PM EST	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	12 hr
Dec 18, 1:19 PM EST	Special Weather Statement	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	56 min
Dec 18, 1:38 PM EST	Special Weather Statement	PHI	Bucks	52 min
Dec 18, 2:15 PM EST	Special Weather Statement	PHI	Chester, Montgomery, Philadelphia	60 min
Dec 18, 2:23 PM EST	Special Weather Statement	PHI	Bucks	52 min
Dec 18, 2:47 PM EST	Winter Storm Watch	PBZ	Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more	47 hr
Dec 19, 2:27 AM EST	Winter Storm Watch	CTP	Elk, McKean, Somerset, Warren	34 hr
Dec 19, 4:10 PM EST	Wind Advisory	CLE	Crawford, Erie	33 hr
Dec 19, 4:23 PM EST	Winter Storm Watch	CLE	Crawford, Erie	23 hr
Dec 19, 9:36 PM EST	Winter Storm Warning	PBZ	Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more	65 hr
Dec 20, 3:16 AM EST	Winter Storm Warning	CTP	Elk, McKean, Somerset, Warren	59 hr
Dec 20, 12:26 PM EST	Winter Weather Advisory	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 5 more	49 hr
Dec 20, 1:35 PM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more	44 hr
Dec 20, 2:13 PM EST	Wind Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	17 hr
Dec 20, 3:01 PM EST	Winter Storm Warning	CLE	Crawford, Erie	43 hr
Dec 20, 3:25 PM EST	Coastal Flood Advisory	PHI	Delaware, Philadelphia	25 hr
Dec 20, 5:34 PM EST	Freezing Rain Advisory	PHI	Carbon, Monroe	3 hr
Dec 20, 9:00 PM EST	Winter Weather Advisory	PHI	Carbon, Monroe	2 hr
Dec 20, 9:11 PM EST	Wind Advisory	PHI	Bucks, Delaware, Montgomery, Philadelphia	12 hr
Dec 21, 12:27 AM EST	Coastal Flood Warning	PHI	Delaware, Philadelphia	11 hr
Dec 21, 4:44 AM EST	Areal Flood Warning	PHI	Chester, Montgomery	14 hr
Dec 21, 5:17 AM EST	Areal Flood Warning	PHI	Delaware	4 hr
Dec 21, 5:37 AM EST	Wind Advisory	CTP	Adams, Bedford, Blair, Centre, Clinton, Columbia and 19 more	37 hr
Dec 21, 5:39 AM EST	Areal Flood Warning	PHI	Bucks	10 hr
Dec 21, 7:15 AM EST	River Flood Warning	PHI	Delaware	4 hr
Dec 21, 7:36 AM EST	Areal Flood Warning	PHI	Monroe, Northampton	15 hr
Dec 21, 7:49 AM EST	Areal Flood Warning	PHI	Philadelphia	11 hr
Dec 21, 9:24 AM EST	Areal Flood Warning	PHI	Delaware	4 hr
Dec 21, 9:36 AM EST	River Flood Warning	PHI	Bucks	10 hr
Dec 21, 10:29 AM EST	River Flood Advisory	PBZ	Allegheny	24 hr
Dec 21, 12:08 PM EST	River Flood Warning	PHI	Chester, Delaware	5 hr
Dec 21, 3:16 PM EST	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	27 hr
Dec 21, 3:34 PM EST	Winter Weather Advisory	BGM	Susquehanna, Wayne	28 hr
Dec 21, 3:41 PM EST	Wind Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	27 hr
Dec 23, 1:51 PM EST	Freezing Rain Advisory	PBZ	Greene, Washington	34 hr
Dec 24, 2:56 AM EST	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Centre, Clearfield and 20 more	26 hr
Dec 24, 4:02 AM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	29 hr
Dec 24, 10:34 AM EST	Mesoscale Discussion	SPC	Fayette, Greene	2 hr
Dec 24, 10:52 AM EST	Winter Weather Advisory	BGM	Lackawanna, Luzerne, Pike, Wayne	20 hr
Dec 24, 3:12 PM EST	Winter Storm Watch	CLE	Crawford, Erie	12 hr
Dec 24, 3:24 PM EST	Winter Storm Watch	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	24 hr
Dec 24, 4:00 PM EST	Winter Storm Watch	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 19 more	22 hr
Dec 24, 4:25 PM EST	Winter Storm Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	23 hr
Dec 25, 3:18 AM EST	Winter Storm Warning	CLE	Crawford, Erie	42 hr
Dec 25, 3:51 AM EST	Winter Storm Watch	PHI	Carbon, Monroe	18 hr
Dec 25, 4:30 AM EST	Winter Storm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 7 more	43 hr
Dec 25, 11:51 AM EST	Winter Storm Warning	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	49 hr
Dec 25, 2:09 PM EST	Winter Storm Warning	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 19 more	40 hr
Dec 25, 2:09 PM EST	Winter Weather Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	33 hr
Dec 25, 2:41 PM EST	Blizzard Warning	CLE	Erie	31 hr
Dec 25, 3:03 PM EST	Flood Watch	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	36 hr
Dec 25, 3:15 PM EST	Winter Weather Advisory	PBZ	Fayette, Greene	32 hr
Dec 25, 9:21 PM EST	Winter Storm Warning	PHI	Carbon, Monroe	37 hr
Dec 25, 9:21 PM EST	Winter Weather Advisory	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	37 hr
Dec 26, 11:40 AM EST	Mesoscale Discussion	SPC	Allegheny, Armstrong, Beaver, Butler, Cameron, Centre and 17 more	6 hr
Dec 26, 12:48 PM EST	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Bradford, Bucks, Carbon and 27 more	6 hr
Dec 26, 2:14 PM EST	Mesoscale Discussion	SPC	Bradford, Susquehanna, Tioga, Wayne	6 hr
Dec 26, 2:41 PM EST	Wind Advisory	CTP	Adams, Bedford, Blair, Cambria, Franklin, Fulton and 3 more	25 hr
Dec 26, 2:45 PM EST	Coastal Flood Advisory	PHI	Delaware, Philadelphia	19 hr
Dec 26, 5:43 PM EST	Winter Weather Advisory	CLE	Erie	10 hr
Dec 26, 7:55 PM EST	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	6 hr
Dec 26, 9:10 PM EST	Areal Flood Advisory	PHI	Bucks, Lehigh, Northampton	4 hr
Dec 26, 9:29 PM EST	Areal Flood Warning	PHI	Chester	118 min
Dec 28, 2:57 AM EST	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	58 hr
Dec 28, 3:49 AM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	39 hr
Dec 28, 3:54 AM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	57 hr
Dec 28, 6:23 PM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	27 hr
Dec 29, 12:53 PM EST	Winter Storm Warning	BGM	Bradford, Susquehanna, Wayne	8 hr
Dec 29, 9:34 PM EST	Winter Weather Advisory	CLE	Erie	9 hr
Dec 30, 9:39 AM EST	Wind Advisory	CTP	Adams, Bedford, Blair, Cambria, Cumberland, Dauphin and 8 more	5 hr
Dec 30, 9:53 AM EST	Wind Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	6 hr
Dec 30, 1:58 PM EST	Special Weather Statement	CTP	Clearfield	47 min
Dec 30, 2:48 PM EST	Special Weather Statement	CTP	Clearfield, Mifflin	57 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
Mesoscale Discussion	5
Special Weather Statement	8
Flooding
Areal Flood Warning	7
River Flood Warning	3
Flood Watch	1
Areal Flood Advisory	2
River Flood Advisory	1
Winter
Blizzard Warning	1
Winter Storm Warning	9
Winter Storm Watch	8
Freezing Rain Advisory	7
Winter Weather Advisory	16
Wind and dust
Wind Advisory	9
Fog and smoke
Dense Fog Advisory	9
Coast and beach
Coastal Flood Warning	1
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 2011 2013

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.