Weather alerts in Maryland, May 2011

235 weather alerts in May 2011, 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 2011. Tap one for its archive.

Alerts: 235
Warnings: 75
Watches: 14
Advisories: 23
Busiest day: May 18, 201142 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 3, 3:29 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	16 hr
May 3, 2:27 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Frederick, Washington	2 hr
May 3, 3:47 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Washington	6 hr
May 3, 6:51 PM EDT	Mesoscale Discussion	SPC	Allegany, Washington	84 min
May 4, 12:50 PM EDT	Frost Advisory	LWX	Allegany	19 hr
May 4, 5:13 PM EDT	Special Weather Statement	LWX	Montgomery	32 min
May 6, 6:06 PM EDT	Special Weather Statement	LWX	Frederick	24 min
May 6, 6:27 PM EDT	Special Weather Statement	LWX	Charles	33 min
May 6, 6:34 PM EDT	Special Weather Statement	LWX	Carroll	26 min
May 6, 7:04 PM EDT	Special Weather Statement	LWX	Howard	26 min
May 6, 7:26 PM EDT	Special Weather Statement	LWX	Howard, City of Baltimore	34 min
May 6, 7:48 PM EDT	Special Weather Statement	LWX	Anne Arundel	27 min
May 6, 8:03 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico	57 min
May 6, 9:17 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	58 min
May 11, 3:35 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	5 days
May 11, 9:00 AM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	5 hr
May 11, 3:08 PM EDT	Coastal Flood Statement	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	12 hr
May 11, 3:29 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	23 hr
May 12, 8:40 AM EDT	Coastal Flood Statement	PHI	Caroline, Talbot	5 hr
May 12, 4:22 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	27 hr
May 12, 5:37 PM EDT	Special Weather Statement	PBZ	Garrett	38 min
May 12, 7:21 PM EDT	Coastal Flood Statement	PHI	Queen Anne's, Talbot	6 hr
May 13, 7:42 AM EDT	Special Weather Statement	PBZ	Garrett	63 min
May 13, 9:00 AM EDT	Flash Flood Watch	LWX	Allegany	12 hr
May 13, 11:38 AM EDT	Special Weather Statement	PBZ	Garrett	52 min
May 13, 1:57 PM EDT	Coastal Flood Warning	LWX	Anne Arundel	14 hr
May 13, 1:57 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel	68 hr
May 13, 2:15 PM EDT	Flash Flood Warning	PBZ	Garrett	2 hr
May 13, 3:15 PM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	15 hr
May 13, 4:56 PM EDT	Special Weather Statement	PBZ	Garrett	64 min
May 13, 6:59 PM EDT	Coastal Flood Advisory	AKQ	Dorchester, Somerset, Wicomico, Worcester	6 days
May 14, 3:48 AM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	61 hr
May 14, 4:22 AM EDT	Coastal Flood Watch	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	11 hr
May 14, 8:58 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	92 min
May 14, 9:46 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's, Talbot	89 min
May 14, 10:13 PM EDT	Special Weather Statement	AKQ	Dorchester, Wicomico	32 min
May 14, 10:43 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's	92 min
May 14, 11:38 PM EDT	Special Weather Statement	AKQ	Worcester	37 min
May 15, 5:55 AM EDT	Special Weather Statement	AKQ	Worcester	35 min
May 15, 6:43 AM EDT	Special Weather Statement	AKQ	Worcester	32 min
May 15, 1:38 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 8 more	2 hr
May 15, 2:19 PM EDT	Coastal Flood Statement	AKQ	Worcester	15 hr
May 15, 3:44 PM EDT	Special Weather Statement	LWX	Frederick	31 min
May 15, 4:08 PM EDT	Special Weather Statement	LWX	Frederick	52 min
May 15, 7:47 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's, Talbot	58 min
May 15, 8:34 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's	56 min
May 15, 8:54 PM EDT	Special Weather Statement	PHI	Caroline	66 min
May 15, 10:16 PM EDT	Areal Flood Advisory	PHI	Cecil	3 hr
May 16, 12:37 AM EDT	Special Weather Statement	AKQ	Dorchester, Somerset, Wicomico	53 min
May 16, 3:29 PM EDT	Coastal Flood Statement	AKQ	Worcester	33 hr
May 16, 4:37 PM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	17 hr
May 16, 5:06 PM EDT	Special Weather Statement	LWX	Howard	24 min
May 16, 5:31 PM EDT	Special Weather Statement	LWX	Howard	74 min
May 16, 5:35 PM EDT	Special Weather Statement	LWX	Carroll	70 min
May 16, 7:39 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	64 hr
May 17, 3:45 AM EDT	Flash Flood Watch	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	44 hr
May 17, 3:47 AM EDT	Coastal Flood Watch	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	11 hr
May 17, 5:22 AM EDT	Special Weather Statement	AKQ	Somerset, Worcester	38 min
May 17, 5:35 AM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	3 hr
May 17, 6:02 AM EDT	Special Weather Statement	AKQ	Dorchester, Somerset, Wicomico, Worcester	43 min
May 17, 11:14 AM EDT	Mesoscale Discussion	SPC	Calvert, Charles, Saint Mary's	2 hr
May 17, 2:46 PM EDT	Areal Flood Advisory	PBZ	Garrett	6 hr
May 17, 2:50 PM EDT	Coastal Flood Warning	LWX	Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore	3 days
May 17, 2:50 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore	45 hr
May 17, 3:57 PM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	18 hr
May 17, 5:18 PM EDT	Special Weather Statement	LWX	Washington	27 min
May 17, 5:45 PM EDT	Flash Flood Warning	LWX	Allegany, Washington	3 hr
May 17, 6:27 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 9 more	2 hr
May 17, 8:17 PM EDT	Tornado Warning	LWX	Washington	11 min
May 18, 1:46 AM EDT	Areal Flood Warning	LWX	Allegany	7 hr
May 18, 2:41 AM EDT	Flood Watch	PBZ		16 hr
May 18, 4:08 AM EDT	River Flood Warning	LWX	Allegany	35 hr
May 18, 4:08 AM EDT	River Flood Warning	LWX	Allegany	4 hr
May 18, 6:31 AM EDT	River Flood Warning	LWX	Garrett	3 hr
May 18, 6:31 AM EDT	River Flood Warning	LWX	Washington	45 hr
May 18, 6:31 AM EDT	River Flood Warning	LWX	Frederick	62 hr
May 18, 9:47 AM EDT	River Flood Warning	LWX	Washington	28 hr
May 18, 9:47 AM EDT	River Flood Warning	LWX	Montgomery	58 hr
May 18, 10:57 AM EDT	Areal Flood Warning	LWX	Allegany	6 hr
May 18, 11:23 AM EDT	Tornado Warning	LWX	Allegany, Washington	22 min
May 18, 11:44 AM EDT	Coastal Flood Watch	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	7 hr
May 18, 11:55 AM EDT	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Calvert, Carroll, Charles, Frederick and 6 more	65 min
May 18, 12:10 PM EDT	Special Weather Statement	LWX	Allegany	35 min
May 18, 12:49 PM EDT	River Flood Warning	LWX	Allegany	9 hr
May 18, 12:55 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more	8 hr
May 18, 1:52 PM EDT	Special Weather Statement	AKQ	Dorchester	23 min
May 18, 2:22 PM EDT	Coastal Flood Statement	AKQ	Worcester	12 hr
May 18, 2:22 PM EDT	Special Weather Statement	LWX	Allegany	38 min
May 18, 2:27 PM EDT	Tornado Warning	LWX	Baltimore, Harford	33 min
May 18, 2:29 PM EDT	Special Weather Statement	PHI	Talbot	61 min
May 18, 2:36 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	39 min
May 18, 2:39 PM EDT	Tornado Warning	PHI	Queen Anne's, Talbot	51 min
May 18, 2:45 PM EDT	Flash Flood Warning	LWX	Baltimore, Harford	3 hr
May 18, 2:50 PM EDT	River Flood Warning	LWX	Allegany	7 hr
May 18, 2:57 PM EDT	Tornado Warning	LWX	Baltimore, Harford	33 min
May 18, 3:08 PM EDT	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more	67 min
May 18, 3:12 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	33 min
May 18, 3:22 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	47 min
May 18, 3:44 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	19 min
May 18, 3:58 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	47 min
May 18, 4:01 PM EDT	Coastal Flood Statement	PHI	Kent, Queen Anne's, Talbot	5 hr
May 18, 4:03 PM EDT	Flash Flood Warning	LWX	Allegany	3 hr
May 18, 4:10 PM EDT	Tornado Warning	LWX	Baltimore, Harford	35 min
May 18, 4:14 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	46 min
May 18, 5:01 PM EDT	Special Weather Statement	LWX	Washington	29 min
May 18, 5:15 PM EDT	Severe Thunderstorm Warning	LWX	Charles	45 min
May 18, 5:35 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	3 hr
May 18, 5:56 PM EDT	Severe Thunderstorm Warning	LWX	Charles	49 min
May 18, 6:01 PM EDT	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 15 more	89 min
May 18, 7:02 PM EDT	Areal Flood Warning	LWX	Allegany	14 hr
May 18, 8:47 PM EDT	Special Weather Statement	LWX	Allegany	28 min
May 18, 9:10 PM EDT	Coastal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	11 hr
May 18, 10:42 PM EDT	Special Weather Statement	LWX	Frederick	18 min
May 18, 11:09 PM EDT	Special Weather Statement	AKQ	Dorchester, Somerset	66 min
May 18, 11:46 PM EDT	Special Weather Statement	PHI	Caroline	59 min
May 19, 12:07 AM EDT	Special Weather Statement	AKQ	Dorchester	53 min
May 19, 1:56 AM EDT	Special Weather Statement	LWX	Harford	34 min
May 19, 4:36 AM EDT	Flash Flood Watch	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more	14 hr
May 19, 12:11 PM EDT	Special Weather Statement	PHI	Caroline	94 min
May 19, 12:22 PM EDT	Flash Flood Warning	LWX	Baltimore	3 hr
May 19, 12:43 PM EDT	Tornado Warning	PHI	Kent, Queen Anne's	32 min
May 19, 12:54 PM EDT	Special Weather Statement	PHI	Cecil	66 min
May 19, 1:00 PM EDT	Special Weather Statement	PHI	Caroline	60 min
May 19, 1:27 PM EDT	Special Weather Statement	LWX	City of Baltimore	33 min
May 19, 1:37 PM EDT	Areal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's	6 hr
May 19, 2:17 PM EDT	Mesoscale Discussion	SPC	Baltimore, Cecil, Harford, Kent	58 min
May 19, 2:19 PM EDT	Special Weather Statement	PHI	Cecil	56 min
May 19, 3:07 PM EDT	Special Weather Statement	LWX	Anne Arundel	38 min
May 19, 3:39 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's, Talbot	51 min
May 19, 3:42 PM EDT	Special Weather Statement	LWX	Anne Arundel	33 min
May 19, 4:02 PM EDT	Special Weather Statement	LWX	City of Baltimore	28 min
May 19, 4:15 PM EDT	Special Weather Statement	LWX	Baltimore, Harford, City of Baltimore	30 min
May 19, 4:34 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	41 min
May 19, 4:47 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's	88 min
May 19, 5:13 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent	62 min
May 19, 5:15 PM EDT	Special Weather Statement	LWX	Harford	30 min
May 19, 6:17 PM EDT	Special Weather Statement	LWX	City of Baltimore	28 min
May 19, 6:41 PM EDT	Special Weather Statement	LWX	City of Baltimore	34 min
May 19, 6:44 PM EDT	Special Weather Statement	AKQ	Caroline	61 min
May 19, 6:45 PM EDT	Special Weather Statement	AKQ	Caroline	30 min
May 19, 6:55 PM EDT	Special Weather Statement	LWX	Frederick	35 min
May 19, 7:15 PM EDT	Special Weather Statement	LWX	Montgomery	30 min
May 19, 7:21 PM EDT	Special Weather Statement	AKQ	Caroline	39 min
May 19, 7:22 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery	38 min
May 19, 8:00 PM EDT	Special Weather Statement	LWX	Howard	30 min
May 19, 8:13 PM EDT	Special Weather Statement	LWX	Howard	32 min
May 19, 9:31 PM EDT	Special Weather Statement	LWX	Anne Arundel	29 min
May 19, 10:14 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	61 min
May 19, 10:59 PM EDT	Special Weather Statement	LWX	Prince George's	31 min
May 19, 11:11 PM EDT	Special Weather Statement	PHI	Caroline	64 min
May 19, 11:14 PM EDT	Special Weather Statement	AKQ	Dorchester	46 min
May 19, 11:27 PM EDT	Special Weather Statement	PHI	Talbot	63 min
May 19, 11:57 PM EDT	Special Weather Statement	AKQ	Wicomico	33 min
May 23, 12:15 AM EDT	Special Weather Statement	LWX	Allegany	75 min
May 23, 2:00 AM EDT	Special Weather Statement	LWX	Montgomery	30 min
May 23, 6:34 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	29 hr
May 23, 10:33 AM EDT	Mesoscale Discussion	SPC	Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 4 more	87 min
May 23, 10:48 AM EDT	Severe Thunderstorm Watch	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more	9 hr
May 23, 2:33 PM EDT	Mesoscale Discussion	SPC	Allegany, Carroll, Charles, Frederick, Howard, Montgomery and 1 more	87 min
May 23, 4:37 PM EDT	Special Weather Statement	LWX	Washington	23 min
May 23, 4:40 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more	95 min
May 23, 5:12 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	48 min
May 23, 5:36 PM EDT	Special Weather Statement	LWX	Carroll	24 min
May 23, 5:39 PM EDT	Special Weather Statement	LWX	Baltimore	51 min
May 23, 5:57 PM EDT	Special Weather Statement	LWX	Montgomery	48 min
May 23, 6:13 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery, Prince George's	47 min
May 23, 8:04 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	56 min
May 24, 12:42 PM EDT	Severe Thunderstorm Watch	SPC	Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more	5 hr
May 24, 2:15 PM EDT	Special Weather Statement	PHI	Talbot	60 min
May 24, 3:26 PM EDT	Special Weather Statement	LWX	Montgomery	34 min
May 24, 3:59 PM EDT	Special Weather Statement	LWX	Charles	31 min
May 24, 4:27 PM EDT	Special Weather Statement	LWX	Howard	33 min
May 24, 4:44 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Howard	19 min
May 26, 3:48 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	27 hr
May 26, 1:42 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Garrett, Washington	11 hr
May 26, 3:03 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	42 min
May 26, 3:40 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	65 min
May 26, 4:09 PM EDT	Flash Flood Warning	LWX	Allegany	4 hr
May 26, 4:11 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	49 min
May 26, 4:22 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	38 min
May 26, 4:29 PM EDT	Tornado Warning	LWX	Allegany, Washington	31 min
May 26, 4:30 PM EDT	Mesoscale Discussion	SPC	Garrett	60 min
May 26, 4:41 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	49 min
May 26, 4:51 PM EDT	Tornado Warning	LWX	Allegany, Washington	39 min
May 26, 4:55 PM EDT	Tornado Warning	LWX	Allegany	35 min
May 26, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	26 min
May 26, 5:24 PM EDT	Severe Thunderstorm Warning	LWX	Washington	22 min
May 26, 5:27 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	48 min
May 26, 5:54 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	51 min
May 26, 6:26 PM EDT	Severe Thunderstorm Warning	LWX	Washington	45 min
May 26, 6:40 PM EDT	Special Weather Statement	LWX	Frederick, Washington	65 min
May 26, 6:46 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	59 min
May 26, 8:50 PM EDT	Severe Thunderstorm Warning	PBZ	Garrett	25 min
May 26, 9:16 PM EDT	Special Weather Statement	PBZ	Garrett	59 min
May 26, 10:41 PM EDT	Special Weather Statement	PBZ	Garrett	64 min
May 26, 11:47 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	58 min
May 27, 1:00 AM EDT	Severe Thunderstorm Warning	LWX	Washington	45 min
May 27, 4:38 AM EDT	Flash Flood Watch	LWX	Allegany	19 hr
May 27, 12:24 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 2 more	96 min
May 27, 12:57 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more	9 hr
May 27, 3:06 PM EDT	Special Weather Statement	LWX	Allegany	24 min
May 27, 3:13 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	38 min
May 27, 3:29 PM EDT	Mesoscale Discussion	SPC	Saint Mary's	91 min
May 27, 4:40 PM EDT	Special Weather Statement	LWX	Allegany	50 min
May 27, 4:53 PM EDT	Special Weather Statement	LWX	Allegany	37 min
May 27, 4:57 PM EDT	Flash Flood Warning	LWX	Allegany	6 hr
May 27, 5:04 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	15 min
May 27, 5:13 PM EDT	Special Weather Statement	LWX	Allegany	47 min
May 27, 5:29 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	31 min
May 27, 5:33 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	27 min
May 27, 5:38 PM EDT	Flash Flood Warning	LWX	Allegany	3 hr
May 27, 6:00 PM EDT	Special Weather Statement	LWX	Allegany	15 min
May 27, 6:14 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 7 more	2 hr
May 27, 6:40 PM EDT	Severe Thunderstorm Warning	LWX	Charles	35 min
May 27, 6:58 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	32 min
May 27, 7:21 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Montgomery, Prince George's	39 min
May 27, 7:26 PM EDT	Areal Flood Advisory	PBZ	Garrett	3 hr
May 27, 7:29 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	46 min
May 27, 7:55 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Frederick, Howard, Montgomery and 1 more	50 min
May 27, 7:59 PM EDT	Special Weather Statement	LWX	Frederick, Washington	46 min
May 27, 8:08 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	22 min
May 27, 8:20 PM EDT	Special Weather Statement	LWX	Anne Arundel	25 min
May 27, 8:28 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard	47 min
May 27, 8:36 PM EDT	Special Weather Statement	LWX	Baltimore, City of Baltimore	24 min
May 27, 8:43 PM EDT	Special Weather Statement	LWX	Anne Arundel	32 min
May 27, 9:07 PM EDT	Special Weather Statement	LWX	Baltimore, Harford, City of Baltimore	23 min
May 27, 9:18 PM EDT	Special Weather Statement	LWX	Harford	27 min
May 27, 9:30 PM EDT	Special Weather Statement	LWX	Kent	30 min
May 27, 10:08 PM EDT	Special Weather Statement	PHI	Cecil	67 min
May 27, 11:55 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel	4 hr
May 28, 12:46 PM EDT	Special Weather Statement	AKQ	Worcester	29 min
May 29, 1:46 PM EDT	Heat Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more	31 hr
May 30, 8:37 PM EDT	Heat Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more	23 hr
May 31, 1:26 PM EDT	Heat Advisory	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more	31 hr
May 31, 1:27 PM EDT	Excessive Heat Warning	PHI	Cecil	31 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	41
Tornado Warning	10
Severe Thunderstorm Watch	6
Mesoscale Discussion	16
Special Weather Statement	98
Flooding
Areal Flood Warning	4
Flash Flood Warning	8
River Flood Warning	9
Flash Flood Watch	4
Flood Watch	1
Areal Flood Advisory	4
Heat
Excessive Heat Warning	1
Heat Advisory	3
Cold
Frost Advisory	1
Coast and beach
Coastal Flood Warning	2
Coastal Flood Watch	3
Coastal Flood Advisory	15
Coastal Flood Statement	9

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 2010 2012

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.