Weather alerts in Maryland, May 2017

114 weather alerts in May 2017, 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 2017. Tap one for its archive.

Alerts: 114
Warnings: 48
Watches: 7
Advisories: 30
Busiest day: May 25, 201720 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, 11:59 AM EDT	Mesoscale Discussion	SPC	Garrett	2 hr
May 1, 12:32 PM EDT	Tornado Watch	SPC	Garrett	4 hr
May 1, 4:36 PM EDT	Mesoscale Discussion	SPC	Allegany	84 min
May 1, 4:43 PM EDT	Special Weather Statement	PBZ	Garrett	77 min
May 1, 5:03 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	41 min
May 1, 5:25 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	29 min
May 1, 5:54 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Baltimore, Carroll, Charles, Frederick, Harford and 5 more	5 hr
May 1, 8:28 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Charles, Frederick, Howard, Montgomery and 2 more	92 min
May 2, 4:37 AM EDT	Wind Advisory	PBZ		14 hr
May 2, 4:40 AM EDT	Wind Advisory	LWX	Allegany	13 hr
May 2, 8:09 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	5 hr
May 4, 3:42 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more	58 hr
May 5, 7:49 AM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	56 min
May 5, 7:54 AM EDT	Areal Flood Warning	LWX	Allegany	5 hr
May 5, 8:29 AM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	61 min
May 5, 8:35 AM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Montgomery, Prince George's, Saint Mary's	21 min
May 5, 8:53 AM EDT	Areal Flood Warning	LWX	Montgomery, Prince George's	3 hr
May 5, 9:00 AM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	45 min
May 5, 9:00 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	60 min
May 5, 9:20 AM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford, City of Baltimore	37 min
May 5, 9:47 AM EDT	River Flood Watch	LWX	Allegany	8 hr
May 5, 9:49 AM EDT	Special Weather Statement	AKQ	Dorchester, Wicomico	56 min
May 5, 10:00 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's	45 min
May 5, 10:07 AM EDT	Areal Flood Warning	LWX	Anne Arundel, Baltimore, Carroll, Harford, Howard, City of Baltimore	6 hr
May 5, 10:38 AM EDT	Special Weather Statement	AKQ	Wicomico, Worcester	67 min
May 5, 11:02 AM EDT	Coastal Flood Advisory	AKQ	Dorchester	4 hr
May 5, 11:14 AM EDT	Areal Flood Advisory	PHI	Cecil	4 hr
May 5, 3:16 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	13 hr
May 5, 6:15 PM EDT	Mesoscale Discussion	SPC	Frederick, Montgomery, Washington	90 min
May 5, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	39 min
May 6, 6:08 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	11 hr
May 7, 7:51 PM EDT	Special Weather Statement	AKQ	Somerset	39 min
May 7, 8:27 PM EDT	Special Weather Statement	AKQ	Worcester	48 min
May 7, 8:32 PM EDT	Special Weather Statement	AKQ	Worcester	43 min
May 8, 12:41 PM EDT	Frost Advisory	LWX	Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more	19 hr
May 8, 12:41 PM EDT	Freeze Warning	LWX	Allegany	19 hr
May 11, 10:54 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Saint Mary's	33 hr
May 11, 6:04 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	24 hr
May 12, 2:27 AM EDT	Coastal Flood Watch	LWX	Saint Mary's	15 hr
May 12, 2:43 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Saint Mary's, City of Baltimore	21 hr
May 12, 5:34 PM EDT	Coastal Flood Warning	LWX	Saint Mary's	12 hr
May 12, 5:54 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	14 hr
May 12, 5:54 PM EDT	Coastal Flood Advisory	AKQ	Worcester	12 hr
May 14, 7:10 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel	3 hr
May 15, 2:45 AM EDT	Coastal Flood Advisory	LWX	Saint Mary's	5 hr
May 18, 5:44 PM EDT	Severe Thunderstorm Warning	LWX	Carroll	46 min
May 18, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	Washington	24 min
May 18, 7:03 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	42 min
May 18, 8:23 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	34 min
May 19, 3:36 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more	114 min
May 19, 3:48 PM EDT	Special Weather Statement	PHI	Cecil	42 min
May 19, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	24 min
May 19, 4:40 PM EDT	Special Weather Statement	PHI	Kent	35 min
May 19, 4:53 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	37 min
May 19, 5:12 PM EDT	Special Weather Statement	PHI	Kent	48 min
May 19, 6:17 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	31 min
May 19, 6:31 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	33 min
May 19, 6:47 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	43 min
May 19, 6:57 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery, Prince George's	22 min
May 19, 7:21 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	36 min
May 19, 7:29 PM EDT	Special Weather Statement	AKQ	Somerset	46 min
May 19, 7:58 PM EDT	Special Weather Statement	PHI	Queen Anne's, Talbot	62 min
May 19, 8:13 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	32 min
May 19, 8:27 PM EDT	Special Weather Statement	AKQ	Worcester	48 min
May 19, 8:47 PM EDT	Special Weather Statement	PHI	Caroline, Talbot	43 min
May 19, 10:33 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	42 min
May 19, 11:51 PM EDT	Special Weather Statement	PHI	Queen Anne's	24 min
May 20, 12:09 AM EDT	Special Weather Statement	PHI	Caroline	21 min
May 21, 2:19 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Saint Mary's	25 hr
May 22, 7:25 AM EDT	Areal Flood Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	9 hr
May 23, 5:24 PM EDT	Coastal Flood Statement	AKQ	Dorchester	9 hr
May 23, 9:47 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Saint Mary's	7 hr
May 24, 5:32 AM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	34 hr
May 24, 2:43 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more	46 hr
May 24, 3:25 PM EDT	Coastal Flood Advisory	PHI	Caroline, Queen Anne's, Talbot	33 hr
May 25, 4:44 AM EDT	Coastal Flood Watch	LWX	Saint Mary's	11 hr
May 25, 5:03 AM EDT	Coastal Flood Statement	AKQ	Worcester	10 hr
May 25, 12:59 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Charles, Dorchester, Howard, Montgomery and 6 more	61 min
May 25, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	49 min
May 25, 4:55 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	50 min
May 25, 4:58 PM EDT	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	13 hr
May 25, 4:58 PM EDT	Coastal Flood Advisory	AKQ	Worcester	11 hr
May 25, 5:04 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	41 min
May 25, 5:28 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	17 min
May 25, 5:38 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	37 min
May 25, 5:48 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	42 min
May 25, 6:11 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	49 min
May 25, 6:11 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, Prince George's, City of Baltimore	49 min
May 25, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	49 min
May 25, 6:29 PM EDT	Flash Flood Warning	LWX	Montgomery	3 hr
May 25, 7:02 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, City of Baltimore	43 min
May 25, 7:09 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent, Queen Anne's	51 min
May 25, 7:40 PM EDT	Flash Flood Warning	LWX	Baltimore	3 hr
May 25, 7:56 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent	49 min
May 25, 7:59 PM EDT	Coastal Flood Advisory	LWX	Baltimore, City of Baltimore	15 hr
May 25, 9:27 PM EDT	Areal Flood Warning	LWX	Montgomery	6 hr
May 26, 2:41 AM EDT	Coastal Flood Warning	LWX	Saint Mary's	79 min
May 26, 2:41 AM EDT	Coastal Flood Advisory	LWX	Saint Mary's	14 hr
May 26, 5:58 AM EDT	Coastal Flood Advisory	AKQ	Dorchester	2 hr
May 26, 7:50 PM EDT	Coastal Flood Advisory	LWX	Saint Mary's	10 hr
May 27, 3:38 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more	5 days
May 28, 1:42 AM EDT	Dense Fog Advisory	LWX	Allegany, Carroll, Frederick, Washington	6 hr
May 28, 11:11 AM EDT	Flash Flood Watch	PBZ		8 hr
May 28, 11:13 AM EDT	Flash Flood Watch	LWX	Allegany	8 hr
May 28, 9:53 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico, Worcester	10 hr
May 29, 4:39 PM EDT	Coastal Flood Advisory	AKQ	Worcester	9 hr
May 29, 4:39 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	17 hr
May 30, 10:17 AM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	10 hr
May 30, 12:03 PM EDT	Mesoscale Discussion	SPC	Allegany, Garrett	2 hr
May 30, 4:11 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico	15 hr
May 30, 4:35 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel	22 hr
May 31, 5:12 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	26 min
May 31, 5:47 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	29 min
May 31, 6:34 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	22 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	38
Severe Thunderstorm Watch	1
Tornado Watch	1
Mesoscale Discussion	7
Special Weather Statement	15
Flooding
Areal Flood Warning	4
Flash Flood Warning	2
Flash Flood Watch	2
River Flood Watch	1
Areal Flood Advisory	2
Cold
Freeze Warning	1
Frost Advisory	1
Wind and dust
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	1
Coast and beach
Coastal Flood Warning	3
Coastal Flood Watch	2
Coastal Flood Advisory	24
Coastal Flood Statement	7

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 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. Rebuilt daily.