Weather alerts in Maryland, June 2020

148 weather alerts in June 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 June 2020. Tap one for its archive.

Alerts: 148
Warnings: 87
Watches: 10
Advisories: 12
Busiest day: June 22, 202029 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, 2:25 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	4 hr
Jun 3, 10:08 AM EDT	Severe Thunderstorm Watch	SPC	Cecil, Harford	4 hr
Jun 3, 11:34 AM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Cecil, Harford, Kent, City of Baltimore	86 min
Jun 3, 12:06 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	39 min
Jun 3, 12:38 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	69 min
Jun 3, 3:10 PM EDT	Mesoscale Discussion	SPC	Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Garrett and 6 more	2 hr
Jun 3, 3:52 PM EDT	Severe Thunderstorm Watch	SPC	Cecil	6 hr
Jun 3, 8:47 PM EDT	Severe Thunderstorm Warning	LWX	Harford	28 min
Jun 3, 8:52 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	24 min
Jun 4, 2:02 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Charles, Frederick, Howard, Montgomery and 2 more	118 min
Jun 4, 2:29 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more	8 hr
Jun 4, 4:41 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	49 min
Jun 4, 4:41 PM EDT	Mesoscale Discussion	SPC	Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 3 more	94 min
Jun 4, 5:05 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	40 min
Jun 4, 5:20 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	40 min
Jun 4, 5:40 PM EDT	Severe Thunderstorm Warning	LWX	Washington	35 min
Jun 4, 6:02 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	28 min
Jun 4, 7:07 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	26 min
Jun 4, 7:28 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	47 min
Jun 4, 7:52 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Carroll, Howard, Montgomery, Prince George's	38 min
Jun 4, 7:56 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford	34 min
Jun 4, 8:01 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	44 min
Jun 4, 8:50 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	40 min
Jun 4, 9:15 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's, Talbot	45 min
Jun 4, 9:30 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent, Queen Anne's	28 min
Jun 4, 9:54 PM EDT	Special Weather Statement	PHI	Caroline, Cecil, Talbot	36 min
Jun 4, 10:10 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	25 min
Jun 4, 10:12 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent	33 min
Jun 4, 10:51 PM EDT	Flash Flood Watch	LWX	Anne Arundel, Montgomery, Prince George's	4 hr
Jun 4, 11:27 PM EDT	Areal Flood Warning	LWX	Montgomery, Prince George's	6 hr
Jun 5, 1:12 AM EDT	Areal Flood Warning	LWX	Anne Arundel, Prince George's	3 hr
Jun 5, 3:38 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	5 hr
Jun 5, 3:40 AM EDT	Flash Flood Watch	LWX	Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more	17 hr
Jun 5, 9:47 AM EDT	Flash Flood Watch	PHI	Cecil, Kent	12 hr
Jun 5, 1:15 PM EDT	Mesoscale Discussion	SPC	Charles, Prince George's	2 hr
Jun 5, 2:20 PM EDT	Severe Thunderstorm Warning	LWX	Washington	27 min
Jun 5, 3:18 PM EDT	Areal Flood Warning	LWX	Washington	116 min
Jun 5, 4:21 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	13 hr
Jun 5, 4:28 PM EDT	Areal Flood Warning	LWX	Carroll, Frederick, Howard, Montgomery	4 hr
Jun 5, 4:47 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, Harford	3 hr
Jun 5, 6:15 PM EDT	Areal Flood Warning	LWX	Montgomery	3 hr
Jun 5, 8:02 PM EDT	River Flood Warning	LWX	Montgomery	2 hr
Jun 5, 10:48 PM EDT	Areal Flood Warning	LWX	Anne Arundel	6 hr
Jun 6, 5:06 PM EDT	Special Weather Statement	AKQ	Dorchester	39 min
Jun 6, 5:42 PM EDT	Special Weather Statement	AKQ	Dorchester	48 min
Jun 10, 3:16 AM EDT	Heat Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	15 hr
Jun 10, 3:12 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	21 min
Jun 10, 4:12 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	33 min
Jun 10, 7:02 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	43 min
Jun 10, 7:23 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	37 min
Jun 10, 7:45 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery, Prince George's	33 min
Jun 10, 9:49 PM EDT	Severe Thunderstorm Warning	LWX	Harford	41 min
Jun 10, 9:58 PM EDT	Special Weather Statement	PHI	Cecil	47 min
Jun 10, 10:06 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	24 min
Jun 10, 10:24 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick	26 min
Jun 10, 10:32 PM EDT	Special Weather Statement	PHI	Cecil	28 min
Jun 11, 12:53 AM EDT	Areal Flood Warning	LWX	Montgomery	4 hr
Jun 11, 1:44 AM EDT	Coastal Flood Advisory	LWX	Anne Arundel	10 hr
Jun 11, 11:28 AM EDT	Special Weather Statement	PHI	Cecil	32 min
Jun 11, 7:10 PM EDT	Special Weather Statement	AKQ	Dorchester	50 min
Jun 14, 8:36 PM EDT	Beach Hazards Statement	AKQ	Worcester	47 hr
Jun 16, 2:05 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Baltimore, Charles, Saint Mary's, City of Baltimore	17 hr
Jun 16, 8:33 PM EDT	Beach Hazards Statement	AKQ	Worcester	41 hr
Jun 17, 5:49 PM EDT	Special Weather Statement	AKQ	Wicomico, Worcester	41 min
Jun 17, 9:11 PM EDT	Coastal Flood Advisory	LWX	Anne Arundel, Saint Mary's	12 hr
Jun 18, 8:05 PM EDT	Special Weather Statement	PHI	Kent	25 min
Jun 19, 12:37 PM EDT	Flash Flood Watch	LWX	Allegany	7 hr
Jun 19, 3:46 PM EDT	Areal Flood Advisory	PHI	Cecil	4 hr
Jun 19, 5:38 PM EDT	Flash Flood Warning	PHI	Cecil	118 min
Jun 20, 10:45 AM EDT	Flash Flood Watch	LWX	Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore	10 hr
Jun 20, 12:32 PM EDT	Areal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	4 hr
Jun 20, 12:33 PM EDT	Areal Flood Warning	LWX	Montgomery	97 min
Jun 20, 12:48 PM EDT	Areal Flood Warning	LWX	Prince George's	95 min
Jun 20, 1:21 PM EDT	Areal Flood Warning	LWX	Baltimore	92 min
Jun 20, 1:27 PM EDT	Special Weather Statement	PHI	Queen Anne's	33 min
Jun 20, 2:00 PM EDT	Special Weather Statement	PHI	Caroline	30 min
Jun 20, 2:35 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's	25 min
Jun 20, 3:43 PM EDT	Special Weather Statement	AKQ	Dorchester	47 min
Jun 20, 4:54 PM EDT	Special Weather Statement	AKQ	Dorchester	51 min
Jun 21, 4:14 AM EDT	Dense Fog Advisory	PHI	Cecil, Kent, Queen Anne's	5 hr
Jun 21, 2:46 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico	44 min
Jun 21, 3:42 PM EDT	Special Weather Statement	AKQ	Wicomico	48 min
Jun 21, 3:59 PM EDT	Areal Flood Advisory	AKQ	Dorchester, Wicomico	2 hr
Jun 21, 4:32 PM EDT	Special Weather Statement	AKQ	Dorchester	43 min
Jun 22, 1:14 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	46 min
Jun 22, 1:58 PM EDT	Mesoscale Discussion	SPC	Allegany, Baltimore, Carroll, Charles, Frederick, Garrett and 5 more	3 hr
Jun 22, 2:39 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Montgomery	35 min
Jun 22, 3:27 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	48 min
Jun 22, 3:30 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	45 min
Jun 22, 3:41 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	49 min
Jun 22, 3:44 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	46 min
Jun 22, 3:44 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	46 min
Jun 22, 3:45 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	24 min
Jun 22, 3:53 PM EDT	Severe Thunderstorm Warning	LWX	Charles	37 min
Jun 22, 4:07 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	11 min
Jun 22, 4:12 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	48 min
Jun 22, 4:14 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	46 min
Jun 22, 4:27 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	48 min
Jun 22, 4:31 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	44 min
Jun 22, 4:49 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Prince George's	41 min
Jun 22, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Harford, Howard, Montgomery	51 min
Jun 22, 5:00 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, Montgomery, Prince George's	45 min
Jun 22, 5:23 PM EDT	Flash Flood Watch	LWX	Howard, Montgomery	116 min
Jun 22, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Howard, City of Baltimore	45 min
Jun 22, 5:33 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	31 min
Jun 22, 5:37 PM EDT	Special Weather Statement	PHI	Talbot	38 min
Jun 22, 5:45 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, Howard, Prince George's	96 min
Jun 22, 5:58 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	47 min
Jun 22, 6:11 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	30 min
Jun 22, 6:18 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, City of Baltimore	104 min
Jun 22, 7:08 PM EDT	Special Weather Statement	PHI	Cecil	37 min
Jun 22, 7:25 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	22 min
Jun 22, 7:52 PM EDT	Areal Flood Advisory	PHI	Cecil	109 min
Jun 23, 3:08 AM EDT	Dense Fog Advisory	LWX	Frederick, Montgomery	6 hr
Jun 23, 1:58 PM EDT	Flash Flood Watch	LWX	Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore	10 hr
Jun 23, 5:26 PM EDT	Severe Thunderstorm Warning	LWX	Washington	49 min
Jun 23, 6:37 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, City of Baltimore	23 min
Jun 23, 6:50 PM EDT	Areal Flood Warning	LWX	Baltimore, Howard, City of Baltimore	5 hr
Jun 23, 6:59 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	26 min
Jun 23, 9:40 PM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	10 hr
Jun 23, 9:50 PM EDT	Flash Flood Warning	LWX	Frederick	2 hr
Jun 25, 11:22 AM EDT	Special Weather Statement	AKQ	Wicomico	38 min
Jun 25, 1:05 PM EDT	Special Weather Statement	AKQ	Wicomico	40 min
Jun 25, 1:34 PM EDT	Special Weather Statement	AKQ	Worcester	41 min
Jun 25, 1:48 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more	117 min
Jun 25, 4:12 PM EDT	Severe Thunderstorm Warning	LWX	Washington	16 min
Jun 25, 5:26 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	29 min
Jun 25, 6:08 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery, Prince George's	52 min
Jun 25, 6:09 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more	96 min
Jun 25, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery, Prince George's	40 min
Jun 25, 6:53 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	52 min
Jun 25, 8:40 PM EDT	Severe Thunderstorm Warning	LWX	Charles	50 min
Jun 27, 4:56 PM EDT	Special Weather Statement	PHI	Cecil	34 min
Jun 27, 4:57 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Montgomery, Prince George's	106 min
Jun 27, 4:59 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent	31 min
Jun 27, 5:00 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Montgomery, Prince George's	45 min
Jun 27, 5:13 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	23 min
Jun 27, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	45 min
Jun 27, 5:30 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 8 more	60 min
Jun 27, 5:32 PM EDT	Special Weather Statement	PHI	Kent	28 min
Jun 27, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	23 min
Jun 27, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	35 min
Jun 28, 4:21 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard	17 min
Jun 28, 5:33 PM EDT	Severe Thunderstorm Warning	LWX	Harford	42 min
Jun 28, 5:37 PM EDT	Special Weather Statement	PHI	Cecil	38 min
Jun 28, 6:16 PM EDT	Special Weather Statement	PHI	Kent	44 min
Jun 28, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's	34 min
Jun 28, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	48 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	68
Severe Thunderstorm Watch	3
Mesoscale Discussion	9
Special Weather Statement	27
Flooding
Areal Flood Warning	12
Flash Flood Warning	6
River Flood Warning	1
Flash Flood Watch	7
Areal Flood Advisory	4
Heat
Heat Advisory	1
Fog and smoke
Dense Fog Advisory	2
Coast and beach
Coastal Flood Advisory	5
Beach Hazards Statement	2
Coastal Flood Statement	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 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. Warning verification from the Mesonet's Cow. Rebuilt daily.