Weather alerts in Maryland, May 2020

68 weather alerts in May 2020, 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 May 2020. Tap one for its archive.

Alerts: 68
Warnings: 17
Watches: 8
Advisories: 21
Busiest day: May 1, 20209 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
May 1, 12:49 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	40 hr
May 1, 4:11 AM EDT	River Flood Warning	LWX	Frederick	14 hr
May 1, 4:18 AM EDT	River Flood Warning	LWX	Washington	23 hr
May 1, 4:30 AM EDT	River Flood Watch	LWX	Montgomery	11 hr
May 1, 4:36 AM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	7 hr
May 1, 7:58 AM EDT	Special Weather Statement	AKQ	Dorchester	47 min
May 1, 8:04 AM EDT	Special Weather Statement	PHI	Caroline	56 min
May 1, 11:30 AM EDT	Special Weather Statement	AKQ	Worcester	45 min
May 1, 3:39 PM EDT	River Flood Warning	LWX	Montgomery	25 hr
May 3, 7:35 PM EDT	Flash Flood Watch	LWX	Anne Arundel, Calvert, Charles, Montgomery, Prince George's	5 hr
May 3, 10:51 PM EDT	Special Weather Statement	PHI	Caroline	24 min
May 3, 11:17 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	43 min
May 4, 12:17 AM EDT	Special Weather Statement	AKQ	Dorchester	28 min
May 4, 12:44 AM EDT	Special Weather Statement	AKQ	Somerset, Wicomico, Worcester	46 min
May 5, 3:22 PM EDT	Coastal Flood Statement	AKQ	Dorchester	13 hr
May 6, 1:01 PM EDT	Freeze Warning	PBZ		20 hr
May 6, 2:13 PM EDT	Frost Advisory	LWX	Allegany	19 hr
May 7, 4:29 AM EDT	Freeze Watch	LWX	Allegany, Washington	10 hr
May 7, 1:13 PM EDT	Freeze Warning	PBZ		45 hr
May 7, 2:16 PM EDT	Freeze Watch	LWX	Baltimore, Carroll, Frederick, Harford, Howard, Montgomery	24 hr
May 7, 2:16 PM EDT	Freeze Warning	LWX	Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more	43 hr
May 7, 9:59 PM EDT	Coastal Flood Statement	AKQ	Dorchester	6 hr
May 8, 3:11 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Harford	7 hr
May 8, 3:30 AM EDT	Freeze Watch	LWX	Allegany, Carroll, Frederick, Howard, Montgomery, Washington	24 hr
May 8, 9:34 PM EDT	Special Weather Statement	AKQ	Dorchester	41 min
May 8, 10:14 PM EDT	Special Weather Statement	AKQ	Dorchester, Somerset, Wicomico	46 min
May 8, 11:06 PM EDT	Special Weather Statement	AKQ	Worcester	39 min
May 9, 3:17 AM EDT	Freeze Warning	PBZ		28 hr
May 9, 3:36 AM EDT	Frost Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more	28 hr
May 9, 3:36 AM EDT	Freeze Warning	LWX	Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more	28 hr
May 9, 3:46 AM EDT	Freeze Warning	PHI	Cecil	29 hr
May 10, 8:19 PM EDT	Special Weather Statement	PBZ	Garrett	56 min
May 10, 9:20 PM EDT	Special Weather Statement	PBZ	Garrett	40 min
May 11, 2:53 AM EDT	Freeze Warning	PBZ		29 hr
May 11, 3:24 AM EDT	Frost Advisory	PHI	Cecil	27 hr
May 11, 3:43 AM EDT	Frost Advisory	LWX	Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more	26 hr
May 11, 3:43 AM EDT	Freeze Warning	LWX	Allegany	29 hr
May 12, 11:46 AM EDT	Freeze Warning	PBZ		21 hr
May 12, 2:41 PM EDT	Frost Advisory	LWX	Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more	18 hr
May 17, 3:43 PM EDT	Beach Hazards Statement	AKQ	Worcester	5 days
May 17, 3:43 PM EDT	Rip Current Statement	AKQ	Worcester	52 hr
May 18, 6:27 AM EDT	Coastal Flood Watch	AKQ	Dorchester, Somerset, Wicomico	29 hr
May 18, 7:10 PM EDT	High Surf Advisory	AKQ	Worcester	72 hr
May 19, 3:20 AM EDT	Wind Advisory	PBZ		29 hr
May 19, 3:26 AM EDT	Coastal Flood Watch	LWX	Anne Arundel, Saint Mary's	37 hr
May 19, 6:00 AM EDT	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	46 hr
May 19, 6:00 AM EDT	Coastal Flood Advisory	AKQ	Worcester	16 hr
May 19, 2:58 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Saint Mary's, City of Baltimore	42 hr
May 19, 9:40 PM EDT	Rip Current Statement	AKQ	Worcester	70 hr
May 20, 3:57 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	12 hr
May 23, 3:51 AM EDT	Dense Fog Advisory	PBZ		5 hr
May 23, 4:09 AM EDT	Dense Fog Advisory	LWX	Allegany, Carroll, Frederick, Montgomery, Washington	4 hr
May 23, 4:41 AM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	49 min
May 25, 1:15 AM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	4 hr
May 25, 2:47 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Charles, Saint Mary's, City of Baltimore	9 hr
May 25, 9:01 PM EDT	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	12 hr
May 26, 8:03 AM EDT	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more	3 hr
May 26, 3:21 PM EDT	Dense Fog Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	17 hr
May 27, 6:45 AM EDT	Dense Fog Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more	3 hr
May 28, 4:05 PM EDT	Special Weather Statement	PBZ	Garrett	25 min
May 29, 12:27 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 7 more	63 min
May 29, 2:25 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	29 min
May 29, 2:25 PM EDT	Severe Thunderstorm Watch	SPC	Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 3 more	7 hr
May 29, 2:40 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	25 min
May 29, 2:53 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	25 min
May 29, 3:03 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Howard, Montgomery	87 min
May 29, 5:18 PM EDT	Areal Flood Advisory	PHI	Cecil	3 hr
May 29, 8:01 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Cecil, Harford	119 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
Severe Thunderstorm Warning	4
Severe Thunderstorm Watch	1
Mesoscale Discussion	3
Special Weather Statement	13
Flooding
River Flood Warning	3
Flash Flood Watch	1
River Flood Watch	1
Areal Flood Advisory	1
Cold
Freeze Warning	9
Freeze Watch	3
Frost Advisory	5
Wind and dust
Wind Advisory	1
Fog and smoke
Dense Fog Advisory	6
Coast and beach
Coastal Flood Warning	1
Coastal Flood Watch	2
Coastal Flood Advisory	7
High Surf Advisory	1
Beach Hazards Statement	1
Coastal Flood Statement	3
Rip Current 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 2019 2021

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.