Weather alerts in Maryland, December 2012

62 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: 62
Warnings: 10
Watches: 5
Advisories: 43
Busiest day: December 20, 20129 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	Caroline, Cecil, Kent, Queen Anne's, Talbot	14 hr
Dec 1, 9:57 PM EST	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more	12 hr
Dec 2, 1:01 AM EST	Dense Fog Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	8 hr
Dec 8, 4:13 AM EST	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Carroll, Frederick, Washington, City of Baltimore	5 hr
Dec 9, 3:45 AM EST	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	4 hr
Dec 9, 4:23 AM EST	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	5 hr
Dec 9, 5:15 AM EST	Dense Fog Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	5 hr
Dec 9, 7:04 PM EST	Dense Fog Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	14 hr
Dec 9, 7:10 PM EST	Dense Fog Advisory	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	14 hr
Dec 9, 7:23 PM EST	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	14 hr
Dec 16, 8:41 PM EST	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	16 hr
Dec 16, 8:42 PM EST	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more	13 hr
Dec 17, 11:19 AM EST	Coastal Flood Advisory	LWX	Anne Arundel, Calvert, Saint Mary's	16 hr
Dec 17, 2:16 PM EST	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more	13 hr
Dec 17, 3:27 PM EST	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	12 hr
Dec 18, 3:32 AM EST	Coastal Flood Advisory	LWX	Anne Arundel, Calvert	10 hr
Dec 18, 5:18 AM EST	Dense Fog Advisory	LWX	Allegany, Washington	3 hr
Dec 18, 2:47 PM EST	Winter Storm Watch	PBZ		47 hr
Dec 18, 8:31 PM EST	Winter Storm Watch	LWX	Allegany	31 hr
Dec 19, 9:36 PM EST	Winter Storm Warning	PBZ		65 hr
Dec 20, 3:05 AM EST	Winter Storm Warning	LWX	Allegany	11 hr
Dec 20, 10:23 AM EST	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	37 hr
Dec 20, 11:15 AM EST	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	16 hr
Dec 20, 2:11 PM EST	High Wind Watch	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	23 hr
Dec 20, 2:11 PM EST	Wind Advisory	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	50 hr
Dec 20, 2:12 PM EST	Blizzard Warning	LWX	Allegany	50 hr
Dec 20, 3:25 PM EST	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	25 hr
Dec 20, 5:43 PM EST	Winter Weather Advisory	LWX	Allegany	7 hr
Dec 20, 8:52 PM EST	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	9 hr
Dec 20, 9:11 PM EST	Wind Advisory	PHI	Caroline, Queen Anne's, Talbot	12 hr
Dec 20, 9:12 PM EST	Wind Advisory	AKQ	Worcester	9 hr
Dec 21, 1:48 AM EST	Coastal Flood Warning	LWX	Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore	15 hr
Dec 21, 6:17 AM EST	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	10 hr
Dec 21, 2:20 PM EST	Wind Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	25 hr
Dec 21, 3:16 PM EST	Wind Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	27 hr
Dec 21, 4:56 PM EST	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	4 hr
Dec 22, 2:42 AM EST	High Wind Warning	LWX	Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more	14 hr
Dec 23, 1:51 PM EST	Freezing Rain Advisory	PBZ		34 hr
Dec 23, 8:50 PM EST	Winter Weather Advisory	LWX	Allegany, Baltimore, Carroll, Frederick, Washington	31 hr
Dec 24, 10:34 AM EST	Mesoscale Discussion	SPC	Garrett	2 hr
Dec 24, 3:50 PM EST	Winter Storm Watch	LWX	Allegany, Frederick, Washington	23 hr
Dec 24, 4:25 PM EST	Winter Storm Watch	PBZ		23 hr
Dec 25, 1:13 AM EST	Dense Fog Advisory	LWX	Baltimore, Carroll, Frederick, Washington	11 hr
Dec 25, 4:30 AM EST	Winter Storm Warning	PBZ		43 hr
Dec 25, 2:29 PM EST	Winter Storm Warning	LWX	Allegany	35 hr
Dec 25, 2:29 PM EST	Winter Weather Advisory	LWX	Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more	35 hr
Dec 26, 8:16 AM EST	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore	26 hr
Dec 26, 9:24 AM EST	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	9 hr
Dec 26, 12:48 PM EST	Mesoscale Discussion	SPC	Allegany, Carroll, Frederick, Garrett, Washington	6 hr
Dec 26, 1:40 PM EST	Wind Advisory	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	27 hr
Dec 26, 2:45 PM EST	Coastal Flood Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	19 hr
Dec 26, 8:45 PM EST	River Flood Warning	LWX	Montgomery	6 hr
Dec 27, 1:48 AM EST	Winter Weather Advisory	LWX	Allegany	13 hr
Dec 27, 3:30 AM EST	Coastal Flood Advisory	AKQ	Dorchester	2 hr
Dec 27, 11:00 AM EST	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	5 hr
Dec 28, 3:49 AM EST	Winter Weather Advisory	PHI	Cecil	39 hr
Dec 28, 3:54 AM EST	Winter Weather Advisory	PBZ		57 hr
Dec 28, 4:30 AM EST	Winter Weather Advisory	LWX	Allegany, Baltimore, Carroll, Frederick, Washington	51 hr
Dec 29, 9:42 AM EST	Winter Storm Warning	PBZ		27 hr
Dec 30, 9:31 AM EST	Wind Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more	5 hr
Dec 30, 9:53 AM EST	Wind Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	6 hr
Dec 30, 11:02 AM EST	Winter Weather Advisory	LWX	Allegany	4 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
Mesoscale Discussion	2
Flooding
River Flood Warning	1
Winter
Blizzard Warning	1
Winter Storm Warning	5
Winter Storm Watch	4
Freezing Rain Advisory	1
Winter Weather Advisory	8
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	8
Fog and smoke
Dense Fog Advisory	16
Coast and beach
Coastal Flood Warning	2
Coastal Flood Advisory	10
Coastal Flood Statement	2

By county

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

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.