Weather alerts in Maryland, June 2021

176 weather alerts in June 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 June 2021. Tap one for its archive.

Alerts: 176
Warnings: 103
Watches: 12
Advisories: 18
Busiest day: June 10, 202128 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
Jun 2, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	45 min
Jun 2, 6:27 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	48 min
Jun 3, 8:56 AM EDT	Flash Flood Watch	LWX	Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 2 more	13 hr
Jun 3, 1:46 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more	119 min
Jun 3, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more	6 hr
Jun 3, 3:14 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	46 min
Jun 3, 3:47 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	43 min
Jun 3, 3:50 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	40 min
Jun 3, 4:12 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore	33 min
Jun 3, 4:20 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, City of Baltimore	40 min
Jun 3, 4:30 PM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Jun 3, 4:43 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford, City of Baltimore	47 min
Jun 3, 4:47 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more	88 min
Jun 3, 4:51 PM EDT	Tornado Warning	LWX	Baltimore, Harford	9 min
Jun 3, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	36 min
Jun 3, 4:58 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	6 hr
Jun 3, 4:59 PM EDT	Special Weather Statement	AKQ	Wicomico	61 min
Jun 3, 4:59 PM EDT	Tornado Warning	LWX	Baltimore, Harford	16 min
Jun 3, 5:26 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	49 min
Jun 3, 5:27 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	33 min
Jun 3, 5:55 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	34 min
Jun 3, 6:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	28 min
Jun 3, 6:14 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	34 min
Jun 3, 6:29 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, Harford	3 hr
Jun 3, 6:36 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	39 min
Jun 3, 6:46 PM EDT	Areal Flood Warning	LWX	Cecil	4 hr
Jun 3, 6:53 PM EDT	Tornado Warning	LWX	Harford	10 min
Jun 3, 9:00 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	113 min
Jun 4, 12:36 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	39 min
Jun 4, 12:46 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Charles, Prince George's, Queen Anne's, Saint Mary's and 2 more	59 min
Jun 4, 12:50 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	55 min
Jun 4, 12:59 PM EDT	Severe Thunderstorm Watch	SPC	Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico	7 hr
Jun 4, 1:36 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	39 min
Jun 4, 2:17 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	43 min
Jun 4, 2:26 PM EDT	Mesoscale Discussion	SPC	Cecil, Harford	94 min
Jun 4, 2:50 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	40 min
Jun 4, 2:55 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	30 min
Jun 4, 3:19 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	41 min
Jun 4, 3:40 PM EDT	Special Weather Statement	AKQ	Somerset	65 min
Jun 4, 3:54 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	51 min
Jun 4, 4:12 PM EDT	Mesoscale Discussion	SPC	Calvert, Caroline, Cecil, Dorchester, Harford, Kent and 6 more	93 min
Jun 4, 4:44 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	22 min
Jun 8, 3:32 PM EDT	Areal Flood Warning	LWX	Cecil, Harford	4 hr
Jun 8, 3:48 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	42 min
Jun 8, 3:57 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Cecil	93 min
Jun 8, 5:30 PM EDT	Areal Flood Warning	LWX	Cecil	90 min
Jun 8, 6:23 PM EDT	Areal Flood Warning	LWX	Anne Arundel, Prince George's	3 hr
Jun 8, 7:48 PM EDT	Special Weather Statement	AKQ	Dorchester	42 min
Jun 8, 8:45 PM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Jun 8, 9:32 PM EDT	Special Weather Statement	AKQ	Wicomico	43 min
Jun 9, 3:49 PM EDT	Special Weather Statement	AKQ	Worcester	41 min
Jun 9, 4:09 PM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	51 min
Jun 9, 4:32 PM EDT	Areal Flood Advisory	PHI	Caroline	108 min
Jun 9, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	27 min
Jun 9, 4:52 PM EDT	Special Weather Statement	AKQ	Dorchester	53 min
Jun 9, 5:06 PM EDT	Special Weather Statement	AKQ	Worcester	39 min
Jun 9, 5:14 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	46 min
Jun 9, 6:09 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	30 min
Jun 9, 6:55 PM EDT	Areal Flood Warning	LWX	Saint Mary's	2 hr
Jun 9, 7:35 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Saint Mary's	95 min
Jun 9, 9:10 PM EDT	Areal Flood Warning	LWX	Saint Mary's	4 hr
Jun 10, 2:53 AM EDT	Flash Flood Watch	LWX	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more	43 hr
Jun 10, 5:10 AM EDT	Areal Flood Warning	LWX	Saint Mary's	47 min
Jun 10, 10:14 AM EDT	Flash Flood Watch	AKQ	Dorchester, Somerset, Wicomico, Worcester	10 hr
Jun 10, 12:59 PM EDT	Special Weather Statement	PHI	Caroline	46 min
Jun 10, 1:21 PM EDT	Special Weather Statement	AKQ	Worcester	39 min
Jun 10, 1:45 PM EDT	Areal Flood Advisory	AKQ	Wicomico, Worcester	2 hr
Jun 10, 1:48 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	57 min
Jun 10, 2:00 PM EDT	Special Weather Statement	AKQ	Worcester	45 min
Jun 10, 2:00 PM EDT	Special Weather Statement	PHI	Caroline	45 min
Jun 10, 2:14 PM EDT	Special Weather Statement	AKQ	Worcester	46 min
Jun 10, 2:16 PM EDT	Areal Flood Advisory	PHI	Caroline, Kent, Queen Anne's	3 hr
Jun 10, 2:24 PM EDT	Areal Flood Advisory	AKQ	Wicomico, Worcester	2 hr
Jun 10, 2:37 PM EDT	Special Weather Statement	AKQ	Dorchester	23 min
Jun 10, 2:57 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, City of Baltimore	25 min
Jun 10, 2:59 PM EDT	Areal Flood Warning	LWX	Baltimore	38 min
Jun 10, 2:59 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	46 min
Jun 10, 3:01 PM EDT	Special Weather Statement	AKQ	Wicomico	29 min
Jun 10, 3:03 PM EDT	Areal Flood Warning	LWX	Carroll	8 hr
Jun 10, 3:08 PM EDT	Areal Flood Advisory	AKQ	Wicomico	112 min
Jun 10, 3:14 PM EDT	Special Weather Statement	PHI	Wicomico	31 min
Jun 10, 3:28 PM EDT	Flash Flood Warning	AKQ	Wicomico	81 min
Jun 10, 3:37 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, City of Baltimore	2 hr
Jun 10, 3:52 PM EDT	Areal Flood Warning	LWX	Anne Arundel, Prince George's	17 hr
Jun 10, 4:50 PM EDT	Areal Flood Warning	LWX	Baltimore, City of Baltimore	5 hr
Jun 10, 4:52 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Charles, Prince George's	93 min
Jun 10, 6:03 PM EDT	Areal Flood Warning	LWX	Baltimore, City of Baltimore	2 hr
Jun 10, 6:25 PM EDT	Areal Flood Warning	LWX	Charles, Prince George's	2 hr
Jun 10, 9:10 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Allegany	113 min
Jun 10, 11:03 PM EDT	Areal Flood Warning	LWX	Allegany	4 hr
Jun 11, 1:32 AM EDT	Areal Flood Advisory	PHI	Kent, Queen Anne's	3 hr
Jun 11, 3:15 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	8 hr
Jun 11, 9:59 AM EDT	Areal Flood Warning	LWX	Charles	11 hr
Jun 11, 10:51 AM EDT	Flash Flood Warning	LWX	Charles	4 hr
Jun 11, 1:40 PM EDT	Areal Flood Warning	LWX	Baltimore, City of Baltimore	8 hr
Jun 11, 1:41 PM EDT	Areal Flood Warning	LWX	Frederick, Washington	6 hr
Jun 11, 2:47 PM EDT	Coastal Flood Advisory	LWX	Charles, Saint Mary's	22 hr
Jun 11, 3:22 PM EDT	Coastal Flood Statement	AKQ	Somerset, Wicomico	14 hr
Jun 11, 3:22 PM EDT	Coastal Flood Advisory	AKQ	Dorchester	15 hr
Jun 11, 10:34 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Saint Mary's, City of Baltimore	22 hr
Jun 12, 3:16 PM EDT	Coastal Flood Statement	AKQ	Somerset, Wicomico	15 hr
Jun 12, 3:16 PM EDT	Coastal Flood Advisory	AKQ	Dorchester	18 hr
Jun 12, 8:43 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Calvert, Charles, Saint Mary's, City of Baltimore	15 hr
Jun 13, 12:13 PM EDT	Mesoscale Discussion	SPC	Allegany, Garrett	2 hr
Jun 13, 12:32 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Carroll, Charles, Frederick, Howard and 3 more	118 min
Jun 13, 12:51 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	26 min
Jun 13, 3:05 PM EDT	Coastal Flood Statement	AKQ	Dorchester	16 hr
Jun 13, 3:26 PM EDT	Mesoscale Discussion	SPC	Garrett	94 min
Jun 14, 3:07 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	10 hr
Jun 14, 11:31 AM EDT	Mesoscale Discussion	SPC	Allegany, Garrett	89 min
Jun 14, 3:55 PM EDT	Mesoscale Discussion	SPC	Allegany, Garrett, Washington	65 min
Jun 14, 3:59 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Garrett, Washington	6 hr
Jun 14, 5:53 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	38 min
Jun 14, 6:41 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more	2 hr
Jun 14, 7:29 PM EDT	Severe Thunderstorm Watch	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more	6 hr
Jun 14, 7:37 PM EDT	Mesoscale Discussion	SPC	Allegany, Garrett	113 min
Jun 14, 9:02 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore	43 min
Jun 14, 9:22 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery	38 min
Jun 14, 9:29 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford, City of Baltimore	46 min
Jun 14, 9:55 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	50 min
Jun 14, 9:56 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	28 min
Jun 14, 10:05 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, City of Baltimore	2 hr
Jun 14, 10:09 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 7 more	2 hr
Jun 14, 10:12 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford	33 min
Jun 14, 10:16 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	44 min
Jun 14, 10:23 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	67 min
Jun 14, 10:25 PM EDT	Flash Flood Watch	LWX	Anne Arundel, Charles, Montgomery, Prince George's	4 hr
Jun 14, 10:30 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	45 min
Jun 14, 10:49 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Montgomery, Prince George's	3 hr
Jun 14, 10:55 PM EDT	Areal Flood Advisory	PHI	Kent, Queen Anne's	2 hr
Jun 14, 11:03 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	57 min
Jun 14, 11:12 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	63 min
Jun 14, 11:23 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	24 min
Jun 14, 11:39 PM EDT	Areal Flood Advisory	PHI	Caroline, Kent, Queen Anne's	85 min
Jun 14, 11:42 PM EDT	Severe Thunderstorm Warning	PHI	Kent	63 min
Jun 14, 11:51 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	54 min
Jun 14, 11:54 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	66 min
Jun 15, 1:43 AM EDT	Areal Flood Warning	LWX	Montgomery, Prince George's	17 min
Jun 15, 1:53 AM EDT	Areal Flood Warning	LWX	Prince George's	4 hr
Jun 15, 4:03 AM EDT	Special Weather Statement	AKQ	Worcester	42 min
Jun 15, 10:26 AM EDT	Areal Flood Warning	LWX	Prince George's	9 hr
Jun 19, 11:19 PM EDT	Special Weather Statement	AKQ	Wicomico	26 min
Jun 20, 8:11 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	26 min
Jun 21, 1:51 PM EDT	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 8 more	114 min
Jun 21, 2:15 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	45 min
Jun 21, 2:20 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more	6 hr
Jun 21, 3:33 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	42 min
Jun 21, 3:59 PM EDT	Severe Thunderstorm Warning	LWX	Washington	46 min
Jun 21, 4:09 PM EDT	Severe Thunderstorm Warning	LWX	Washington	51 min
Jun 21, 4:25 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	50 min
Jun 21, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	49 min
Jun 21, 4:33 PM EDT	Severe Thunderstorm Watch	SPC	Caroline, Kent, Queen Anne's, Talbot	6 hr
Jun 21, 4:47 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	28 min
Jun 21, 5:02 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	43 min
Jun 21, 5:10 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	50 min
Jun 21, 5:44 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Howard, Montgomery, Prince George's and 1 more	46 min
Jun 21, 6:14 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	46 min
Jun 21, 6:15 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Caroline, Cecil, Harford, Howard and 5 more	60 min
Jun 21, 6:28 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford, Howard, City of Baltimore	47 min
Jun 21, 6:30 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	45 min
Jun 21, 6:41 PM EDT	Special Weather Statement	CTP	Garrett	19 min
Jun 21, 6:46 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	29 min
Jun 21, 6:47 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	58 min
Jun 21, 6:51 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	39 min
Jun 21, 7:43 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	47 min
Jun 21, 9:03 PM EDT	Special Weather Statement	PHI	Kent	27 min
Jun 26, 2:58 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	6 hr
Jun 26, 11:37 AM EDT	Special Weather Statement	AKQ	Somerset	68 min
Jun 28, 3:13 PM EDT	Heat Advisory	PHI	Caroline, Kent, Queen Anne's, Talbot	53 hr
Jun 30, 3:23 AM EDT	Heat Advisory	LWX	Anne Arundel, Baltimore, Calvert, Cecil, Harford, City of Baltimore	16 hr
Jun 30, 2:23 PM EDT	Flash Flood Watch	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 7 more	42 hr
Jun 30, 4:39 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	36 min
Jun 30, 4:41 PM EDT	Mesoscale Discussion	SPC	Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more	2 hr
Jun 30, 4:51 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Carroll, Frederick, Washington	3 hr
Jun 30, 4:55 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	21 min
Jun 30, 6:58 PM EDT	Mesoscale Discussion	SPC	Carroll, Frederick, Montgomery	92 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	67
Tornado Warning	3
Severe Thunderstorm Watch	7
Mesoscale Discussion	17
Special Weather Statement	23
Flooding
Areal Flood Warning	23
Flash Flood Warning	10
Flash Flood Watch	5
Areal Flood Advisory	8
Heat
Heat Advisory	2
Coast and beach
Coastal Flood Advisory	8
Coastal Flood Statement	3

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.