Weather alerts in Pennsylvania, December 2015

54 weather alerts in December 2015, 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 2015. Tap one for its archive.

Alerts: 54
Warnings: 2
Watches: 2
Advisories: 41
Busiest day: December 27, 20158 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 3, 8:20 AM EST	Special Weather Statement	PHI	Monroe	55 min
Dec 5, 1:22 AM EST	Dense Fog Advisory	PBZ	Armstrong, Beaver, Butler, Clarion, Forest, Jefferson and 3 more	11 hr
Dec 5, 6:18 PM EST	Freezing Fog Advisory	CLE	Crawford, Erie	16 hr
Dec 5, 6:50 PM EST	Dense Fog Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 4 more	17 hr
Dec 5, 7:03 PM EST	Dense Fog Advisory	CTP	Blair, Cameron, Centre, Clearfield, Elk, Huntingdon and 2 more	16 hr
Dec 6, 5:00 AM EST	Special Weather Statement	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	3 hr
Dec 6, 11:07 AM EST	Dense Fog Advisory	CTP	Blair, Cameron, Centre, Clearfield, Columbia, Huntingdon and 6 more	114 min
Dec 6, 7:44 PM EST	Dense Fog Advisory	CTP	Adams, Bedford, Blair, Centre, Clearfield, Clinton and 18 more	16 hr
Dec 7, 3:43 PM EST	Dense Fog Advisory	CLE	Crawford, Erie	17 hr
Dec 7, 8:40 PM EST	Dense Fog Advisory	CTP	Centre, Clinton, Columbia, Cumberland, Franklin, Juniata and 8 more	17 hr
Dec 8, 10:07 PM EST	Dense Fog Advisory	CTP	Blair, Centre, Clearfield, Clinton, Huntingdon	3 hr
Dec 9, 1:34 AM EST	Freezing Fog Advisory	CTP	Bedford, Blair, Centre, Clearfield, Clinton, Fulton and 6 more	10 hr
Dec 10, 5:35 AM EST	Dense Fog Advisory	CTP	Adams, Bedford, Blair, Cameron, Centre, Clearfield and 23 more	4 hr
Dec 10, 10:03 AM EST	Dense Fog Advisory	CTP	Adams, Bedford, Blair, Cameron, Centre, Clearfield and 23 more	117 min
Dec 13, 9:46 PM EST	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	12 hr
Dec 17, 3:39 AM EST	Lake Effect Snow Watch	CTP	McKean, Warren	24 hr
Dec 17, 3:48 AM EST	Lake Effect Snow Watch	CLE	Erie	10 hr
Dec 17, 2:08 PM EST	Lake Effect Snow Warning	CLE	Crawford, Erie	49 hr
Dec 17, 2:08 PM EST	Lake Effect Snow Advisory	CLE	Crawford	49 hr
Dec 17, 7:37 PM EST	Dense Fog Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	110 min
Dec 18, 3:36 AM EST	Lake Effect Snow Warning	CTP	Warren	41 hr
Dec 18, 3:36 AM EST	Lake Effect Snow Advisory	CTP	McKean	41 hr
Dec 18, 7:13 PM EST	Special Weather Statement	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	3 hr
Dec 18, 8:49 PM EST	Special Weather Statement	PBZ	Allegheny, Armstrong, Butler, Clarion, Fayette, Forest and 5 more	26 min
Dec 18, 8:58 PM EST	Special Weather Statement	CTP	Cambria, Clearfield, Elk, McKean, Somerset, Warren	62 min
Dec 18, 9:25 PM EST	Special Weather Statement	PBZ	Fayette, Indiana, Jefferson, Westmoreland	80 min
Dec 22, 9:30 PM EST	Dense Fog Advisory	CTP	Adams, Bedford, Blair, Centre, Clinton, Columbia and 19 more	15 hr
Dec 22, 11:26 PM EST	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	16 hr
Dec 23, 3:06 AM EST	Dense Fog Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	5 hr
Dec 23, 6:19 PM EST	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	116 min
Dec 23, 11:58 PM EST	Special Weather Statement	PBZ	Allegheny, Beaver, Butler	47 min
Dec 24, 1:52 AM EST	Special Weather Statement	CTP	Potter	38 min
Dec 24, 2:23 AM EST	Special Weather Statement	CTP	Clinton	37 min
Dec 25, 1:12 AM EST	Dense Fog Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	9 hr
Dec 25, 7:40 AM EST	Dense Fog Advisory	CTP	Adams, Columbia, Cumberland, Dauphin, Franklin, Lancaster and 9 more	4 hr
Dec 25, 11:47 PM EST	Dense Fog Advisory	CTP	Adams, Franklin, Lancaster, York	3 hr
Dec 26, 12:22 AM EST	Dense Fog Advisory	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	3 hr
Dec 27, 3:00 AM EST	Dense Fog Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	6 hr
Dec 27, 8:01 AM EST	Areal Flood Advisory	CTP	Cameron, Elk, McKean, Potter, Warren	3 hr
Dec 27, 9:53 AM EST	Areal Flood Advisory	PBZ	Forest, Mercer, Venango	6 hr
Dec 27, 9:58 AM EST	Areal Flood Advisory	CLE	Crawford	9 hr
Dec 27, 2:43 PM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	48 hr
Dec 27, 2:52 PM EST	Freezing Rain Advisory	PBZ	Armstrong, Butler, Clarion, Fayette, Forest, Jefferson and 3 more	37 hr
Dec 27, 3:23 PM EST	Winter Weather Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	44 hr
Dec 27, 3:28 PM EST	Freezing Rain Advisory	CLE	Crawford, Erie	30 hr
Dec 27, 8:39 PM EST	River Flood Advisory	PBZ	Allegheny	36 hr
Dec 28, 3:10 AM EST	Wind Advisory	PBZ	Fayette, Westmoreland	25 hr
Dec 28, 3:21 AM EST	Wind Advisory	CLE	Erie	27 hr
Dec 28, 3:44 AM EST	Winter Weather Advisory	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 24 more	30 hr
Dec 30, 1:06 AM EST	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	8 hr
Dec 30, 1:18 AM EST	Dense Fog Advisory	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	9 hr
Dec 30, 4:51 PM EST	Dense Fog Advisory	PHI	Carbon, Monroe, Northampton	11 hr
Dec 30, 5:10 PM EST	Dense Fog Advisory	BGM	Lackawanna, Luzerne, Pike, Wayne	6 hr
Dec 31, 1:28 AM EST	Dense Fog Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Perry, York	2 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
Special Weather Statement	9
Flooding
Areal Flood Advisory	4
River Flood Advisory	1
Winter
Lake Effect Snow Warning	2
Lake Effect Snow Watch	2
Freezing Rain Advisory	2
Lake Effect Snow Advisory	2
Winter Weather Advisory	3
Wind and dust
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	25
Freezing Fog 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 2014 2016

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.