Winter Weather Advisories in Pennsylvania, 2017

Winter Weather Advisories by county

Each county as a circle sized by its count in 2017. Tap one for its archive.

Over time

By month

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
Jan 4, 3:23 PM EST	Winter Weather Advisory	PBZ	Fayette, Greene, Westmoreland	35 hr
Jan 4, 3:52 PM EST	Winter Weather Advisory	CTP	Adams, Lancaster, Somerset, York	35 hr
Jan 5, 11:13 AM EST	Winter Weather Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	18 hr
Jan 6, 4:42 PM EST	Winter Weather Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	25 hr
Jan 9, 11:47 AM EST	Winter Weather Advisory	PBZ	Armstrong, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more	35 hr
Jan 9, 12:52 PM EST	Winter Weather Advisory	CLE	Crawford, Erie	24 hr
Jan 9, 2:41 PM EST	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	37 hr
Jan 9, 2:55 PM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more	36 hr
Jan 9, 3:32 PM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	36 hr
Jan 13, 3:49 AM EST	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Cumberland, Franklin and 5 more	44 hr
Jan 14, 2:37 AM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland	16 hr
Jan 14, 3:25 AM EST	Winter Weather Advisory	PHI	Chester	19 hr
Jan 23, 3:37 AM EST	Winter Weather Advisory	PHI	Carbon, Monroe	38 hr
Jan 23, 3:41 AM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	39 hr
Jan 23, 4:11 AM EST	Winter Weather Advisory	CTP	Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more	30 hr
Jan 26, 3:12 AM EST	Winter Weather Advisory	PBZ	Fayette, Westmoreland	51 hr
Jan 26, 3:54 AM EST	Winter Weather Advisory	CTP	Cambria, Somerset	50 hr
Jan 30, 1:46 PM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	21 hr
Jan 30, 1:58 PM EST	Winter Weather Advisory	CTP	Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 5 more	34 hr
Jan 30, 2:40 PM EST	Winter Weather Advisory	CLE	Crawford, Erie	21 hr
Feb 6, 4:06 AM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	33 hr
Feb 8, 3:08 AM EST	Winter Weather Advisory	BGM	Bradford, Susquehanna, Wyoming	12 hr
Feb 8, 3:34 AM EST	Winter Weather Advisory	PBZ	Fayette, Westmoreland	11 hr
Feb 8, 4:13 AM EST	Winter Weather Advisory	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 17 more	30 hr
Feb 8, 2:11 PM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Greene and 3 more	21 hr
Feb 11, 3:58 AM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Northampton	44 hr
Feb 11, 4:09 AM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	59 hr
Feb 12, 3:40 AM EST	Winter Weather Advisory	PBZ	Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more	28 hr
Feb 12, 3:42 AM EST	Winter Weather Advisory	CLE	Crawford, Erie	29 hr
Feb 12, 4:00 AM EST	Winter Weather Advisory	CTP	Cambria, Somerset	33 hr
Feb 15, 12:04 PM EST	Winter Weather Advisory	CTP	Somerset	22 hr
Mar 3, 3:25 AM EST	Winter Weather Advisory	PBZ	Armstrong, Butler, Lawrence, Mercer	5 hr
Mar 9, 3:35 AM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	34 hr
Mar 9, 3:42 AM EST	Winter Weather Advisory	BGM	Lackawanna, Luzerne, Pike, Wayne, Wyoming	32 hr
Mar 9, 3:43 AM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	33 hr
Mar 9, 3:58 AM EST	Winter Weather Advisory	CTP	Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 17 more	29 hr
Mar 12, 3:31 PM EDT	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 3 more	44 hr
Mar 14, 4:26 AM EDT	Winter Weather Advisory	CTP	Cameron, Clearfield, Elk	11 hr
Mar 14, 11:37 AM EDT	Winter Weather Advisory	PBZ	Fayette, Forest, Mercer, Venango, Westmoreland	47 hr
Mar 14, 2:56 PM EDT	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	41 hr
Mar 14, 8:12 PM EDT	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	31 hr
Mar 14, 11:05 PM EDT	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	21 hr
Mar 17, 3:40 PM EDT	Winter Weather Advisory	CTP	Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more	19 hr
Mar 17, 3:46 PM EDT	Winter Weather Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	20 hr
Mar 17, 8:23 PM EDT	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	13 hr
Mar 23, 2:18 PM EDT	Winter Weather Advisory	CTP	Bedford, Blair, Cameron, Centre, Clearfield, Clinton and 21 more	21 hr
Mar 23, 2:48 PM EDT	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	23 hr
Mar 23, 3:34 PM EDT	Winter Weather Advisory	PHI	Carbon, Monroe	21 hr
Mar 30, 3:56 PM EDT	Winter Weather Advisory	BGM	Lackawanna, Pike, Wayne	40 hr
Apr 6, 3:12 AM EDT	Winter Weather Advisory	PBZ	Fayette, Westmoreland	35 hr
Apr 6, 3:34 AM EDT	Winter Weather Advisory	CTP	Somerset, Warren	34 hr
Apr 6, 1:53 PM EDT	Winter Weather Advisory	CLE	Crawford, Erie	21 hr
Nov 12, 8:03 PM EST	Winter Weather Advisory	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	9 hr
Nov 18, 2:35 PM EST	Winter Weather Advisory	CTP	McKean, Warren	38 hr
Nov 19, 3:57 AM EST	Winter Weather Advisory	CLE	Erie	24 hr
Dec 7, 9:58 AM EST	Winter Weather Advisory	CLE	Erie	17 hr
Dec 8, 3:04 AM EST	Winter Weather Advisory	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more	45 hr
Dec 8, 7:59 PM EST	Winter Weather Advisory	CTP	Lancaster, York	24 hr
Dec 9, 1:52 PM EST	Winter Weather Advisory	CTP	Warren	25 hr
Dec 9, 2:10 PM EST	Winter Weather Advisory	CLE	Erie	38 hr
Dec 11, 4:25 AM EST	Winter Weather Advisory	CTP	Cambria, Clearfield, Elk, McKean, Somerset	57 hr
Dec 11, 12:05 PM EST	Winter Weather Advisory	PBZ	Fayette, Jefferson, Mercer, Westmoreland	39 hr
Dec 11, 1:42 PM EST	Winter Weather Advisory	CLE	Erie	65 hr
Dec 11, 3:14 PM EST	Winter Weather Advisory	BGM	Susquehanna, Wayne	51 hr
Dec 13, 2:59 AM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more	31 hr
Dec 13, 4:05 AM EST	Winter Weather Advisory	CTP	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 21 more	28 hr
Dec 13, 2:10 PM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	18 hr
Dec 13, 3:28 PM EST	Winter Weather Advisory	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	16 hr
Dec 15, 3:26 AM EST	Winter Weather Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	18 hr
Dec 15, 3:41 AM EST	Winter Weather Advisory	CLE	Crawford, Erie	36 hr
Dec 15, 1:27 PM EST	Winter Weather Advisory	CTP	McKean, Warren	27 hr
Dec 21, 2:37 AM EST	Winter Weather Advisory	CTP	Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 5 more	34 hr
Dec 21, 3:32 AM EST	Winter Weather Advisory	BGM	Bradford, Susquehanna, Wayne, Wyoming	64 hr
Dec 21, 11:58 AM EST	Winter Weather Advisory	PBZ	Clarion, Forest, Jefferson, Venango	17 hr
Dec 23, 2:04 PM EST	Winter Weather Advisory	PBZ	Clarion, Fayette, Forest, Jefferson, Mercer, Venango and 1 more	46 hr
Dec 23, 3:24 PM EST	Winter Weather Advisory	CLE	Crawford, Erie	48 hr
Dec 24, 3:22 AM EST	Winter Weather Advisory	CTP	Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 8 more	37 hr
Dec 24, 3:35 AM EST	Winter Weather Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	29 hr
Dec 24, 3:48 AM EST	Winter Weather Advisory	BGM	Bradford, Lackawanna, Luzerne, Pike, Susquehanna, Wayne and 1 more	65 hr
Dec 25, 1:42 PM EST	Winter Weather Advisory	CTP	McKean, Warren	48 hr
Dec 29, 2:49 PM EST	Winter Weather Advisory	CLE	Crawford	36 hr
Dec 29, 2:59 PM EST	Winter Weather Advisory	CTP	Adams, Bedford, Cambria, Clearfield, Cumberland, Dauphin and 10 more	30 hr
Dec 29, 3:53 PM EST	Winter Weather Advisory	PBZ	Fayette, Greene, Westmoreland	29 hr
Dec 29, 11:52 PM EST	Winter Weather Advisory	PHI	Chester, Delaware, Montgomery, Philadelphia	14 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

26 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2016 2018

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.