Weather alerts in Maryland, March 2021

46 weather alerts in March 2021, 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 March 2021. Tap one for its archive.

Alerts: 46
Warnings: 18
Watches: 8
Advisories: 15
Busiest day: March 28, 202112 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
Feb 28, 9:09 PM EST	Dense Fog Advisory	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more	8 hr
Mar 1, 3:22 AM EST	River Flood Watch	LWX	Montgomery	23 hr
Mar 1, 3:22 AM EST	River Flood Warning	LWX	Frederick	42 hr
Mar 1, 3:45 AM EST	River Flood Warning	LWX	Allegany	7 hr
Mar 1, 5:26 AM EST	Wind Advisory	LWX	Allegany, Baltimore, Carroll, Cecil, Frederick, Harford and 4 more	19 hr
Mar 1, 10:15 AM EST	River Flood Warning	LWX	Montgomery	52 hr
Mar 1, 1:29 PM EST	Special Weather Statement	AKQ	Worcester	46 min
Mar 10, 3:43 PM EST	Fire Weather Watch	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more	12 hr
Mar 11, 3:28 AM EST	Red Flag Warning	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more	15 hr
Mar 13, 1:53 PM EST	Fire Weather Watch	LWX	Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more	13 hr
Mar 13, 2:56 PM EST	Fire Weather Watch	PHI	Caroline, Kent, Queen Anne's, Talbot	12 hr
Mar 13, 7:09 PM EST	Fire Weather Watch	AKQ	Dorchester, Somerset, Wicomico, Worcester	8 hr
Mar 14, 4:01 AM EDT	Red Flag Warning	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more	18 hr
Mar 14, 4:05 AM EDT	Red Flag Warning	AKQ	Dorchester, Somerset, Wicomico, Worcester	16 hr
Mar 14, 4:22 AM EDT	Red Flag Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	37 hr
Mar 15, 2:33 PM EDT	Winter Weather Advisory	LWX	Allegany	20 hr
Mar 18, 4:11 AM EDT	Wind Advisory	AKQ	Worcester	45 hr
Mar 18, 2:08 PM EDT	High Surf Advisory	AKQ	Worcester	60 hr
Mar 18, 2:32 PM EDT	Wind Advisory	LWX	Calvert, Saint Mary's	20 hr
Mar 18, 6:52 PM EDT	Special Weather Statement	AKQ	Worcester	38 min
Mar 19, 4:32 AM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	29 hr
Mar 20, 3:12 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Calvert, Charles, Saint Mary's	12 hr
Mar 24, 1:53 PM EDT	High Wind Watch	LWX	Allegany	25 hr
Mar 24, 5:39 PM EDT	Areal Flood Warning	LWX	Anne Arundel, Baltimore, Howard	2 hr
Mar 24, 5:41 PM EDT	Areal Flood Warning	LWX	Saint Mary's	9 hr
Mar 24, 7:09 PM EDT	Dense Fog Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	14 hr
Mar 24, 9:09 PM EDT	Dense Fog Advisory	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more	14 hr
Mar 25, 11:00 AM EDT	Wind Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	32 hr
Mar 25, 2:41 PM EDT	High Wind Warning	LWX	Allegany	24 hr
Mar 25, 2:41 PM EDT	Wind Advisory	LWX	Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more	27 hr
Mar 25, 3:02 PM EDT	Wind Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	24 hr
Mar 28, 4:16 AM EDT	Wind Advisory	LWX	Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more	23 hr
Mar 28, 1:24 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 11 more	2 hr
Mar 28, 3:47 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	43 min
Mar 28, 4:23 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	52 min
Mar 28, 4:30 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	45 min
Mar 28, 4:36 PM EDT	Tornado Warning	LWX	Carroll, Frederick	24 min
Mar 28, 5:05 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, Montgomery	40 min
Mar 28, 5:05 PM EDT	Severe Thunderstorm Watch	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more	4 hr
Mar 28, 5:37 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	38 min
Mar 28, 5:43 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	47 min
Mar 28, 7:05 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	55 min
Mar 28, 7:48 PM EDT	Special Weather Statement	AKQ	Dorchester	27 min
Mar 28, 8:04 PM EDT	Special Weather Statement	AKQ	Dorchester	41 min
Mar 31, 9:17 AM EDT	Winter Weather Advisory	LWX		41 hr
Mar 31, 3:46 PM EDT	Freeze Watch	PHI	Caroline, Kent, Queen Anne's, Talbot	11 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	7
Tornado Warning	1
Severe Thunderstorm Watch	1
Mesoscale Discussion	1
Special Weather Statement	4
Flooding
Areal Flood Warning	2
River Flood Warning	3
River Flood Watch	1
Winter
Winter Weather Advisory	2
Cold
Freeze Watch	1
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	7
Fire
Red Flag Warning	4
Fire Weather Watch	4
Fog and smoke
Dense Fog Advisory	3
Coast and beach
Coastal Flood Advisory	2
High Surf Advisory	1

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 2020 2022

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.