Alert archive / Maryland / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Maryland, 2026

366 severe thunderstorm warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in 2026. Tap one for its archive.

Severe Thunderstorm Warnings: 366
Busiest month: July145 severe thunderstorm warnings
Busiest day: August 10, 202633 severe thunderstorm warnings

Over time

By month

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
Mar 11, 6:09 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	51 min
Mar 11, 6:40 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	35 min
Mar 11, 6:40 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Frederick, Montgomery	35 min
Mar 11, 6:56 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery	34 min
Mar 11, 7:14 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 2 more	46 min
Mar 11, 7:37 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	38 min
Mar 11, 7:48 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	42 min
Mar 11, 7:57 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	33 min
Mar 11, 8:28 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	47 min
Mar 16, 10:57 AM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Frederick, Montgomery, Washington	48 min
Mar 16, 11:28 AM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Frederick, Montgomery	17 min
Mar 16, 11:40 AM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Howard, Montgomery, Washington and 1 more	50 min
Mar 16, 12:39 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	36 min
Mar 16, 12:49 PM EDT	Severe Thunderstorm Warning	LWX	Charles	26 min
Mar 16, 2:11 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	34 min
Mar 16, 2:16 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	44 min
Mar 16, 2:35 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford, Howard, City of Baltimore	40 min
Mar 16, 2:53 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, City of Baltimore	31 min
Mar 16, 3:22 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	40 min
Mar 16, 8:27 PM EDT	Severe Thunderstorm Warning	LWX	Charles	48 min
Mar 16, 8:33 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Charles, Frederick, Howard and 2 more	42 min
Mar 16, 9:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	42 min
Mar 16, 9:12 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 2 more	33 min
Mar 16, 9:32 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	58 min
Mar 16, 9:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	60 min
Mar 16, 10:07 PM EDT	Severe Thunderstorm Warning	PHI	Kent	53 min
Mar 16, 10:13 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	62 min
Mar 16, 10:24 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	62 min
Mar 16, 10:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	AKQ	Somerset, Wicomico, Worcester	54 min
Apr 1, 3:57 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	33 min
Apr 1, 5:15 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	29 min
Apr 1, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	45 min
Apr 1, 5:59 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	46 min
Apr 1, 6:41 PM EDT	Severe Thunderstorm Warning	LWX	Washington	34 min
Apr 1, 7:19 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	41 min
Apr 1, 10:58 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	32 min
Apr 1, 11:44 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	29 min
Apr 2, 12:38 AM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	33 min
May 13, 5:16 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	29 min
May 13, 7:11 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	34 min
May 18, 5:10 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	20 min
May 20, 1:37 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	27 min
May 20, 2:46 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	44 min
May 20, 3:41 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	34 min
May 20, 4:19 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford	27 min
May 20, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	51 min
May 20, 4:55 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	35 min
May 20, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	42 min
May 20, 5:21 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	54 min
May 27, 11:20 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	40 min
Jun 6, 3:18 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	57 min
Jun 6, 4:05 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett, Washington	55 min
Jun 6, 4:29 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	46 min
Jun 6, 5:11 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Carroll, Frederick, Washington	64 min
Jun 6, 5:17 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	58 min
Jun 6, 5:51 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Baltimore, Carroll, Cecil, Frederick, Harford	54 min
Jun 6, 5:57 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Howard, Montgomery, City of Baltimore	48 min
Jun 6, 6:42 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore	33 min
Jun 11, 4:27 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	63 min
Jun 11, 5:26 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	49 min
Jun 11, 6:15 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	30 min
Jun 11, 6:45 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	45 min
Jun 11, 7:18 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery, Washington	42 min
Jun 11, 7:54 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Charles, Frederick, Howard and 2 more	36 min
Jun 11, 8:29 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 6 more	61 min
Jun 11, 8:50 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	55 min
Jun 11, 9:03 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	57 min
Jun 11, 9:22 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	38 min
Jun 12, 4:20 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	25 min
Jun 12, 5:13 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Prince George's	32 min
Jun 12, 5:17 PM EDT	Severe Thunderstorm Warning	LWX	Charles	20 min
Jun 12, 7:09 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	36 min
Jun 12, 7:44 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	31 min
Jun 12, 8:20 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	40 min
Jun 12, 8:35 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	40 min
Jun 12, 8:40 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	50 min
Jun 12, 8:41 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	19 min
Jun 12, 9:13 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	62 min
Jun 12, 9:28 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	47 min
Jun 12, 9:41 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	49 min
Jun 14, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	Washington	20 min
Jun 14, 6:56 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	34 min
Jun 14, 7:20 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	40 min
Jun 14, 7:23 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's	22 min
Jun 14, 7:33 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's	27 min
Jun 14, 7:48 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	57 min
Jun 14, 7:51 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	33 min
Jun 14, 7:55 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	35 min
Jun 14, 7:57 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	31 min
Jun 14, 8:21 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick	39 min
Jun 14, 8:43 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico, Worcester	47 min
Jun 14, 8:56 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford, City of Baltimore	49 min
Jun 14, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	37 min
Jun 14, 9:36 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	24 min
Jun 17, 5:18 AM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	27 min
Jun 18, 7:37 AM EDT	Severe Thunderstorm Warning	LWX	Garrett	23 min
Jun 18, 7:55 AM EDT	Severe Thunderstorm Warning	LWX	Garrett	35 min
Jun 18, 8:06 AM EDT	Severe Thunderstorm Warning	LWX	Allegany	24 min
Jun 22, 4:48 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	27 min
Jun 22, 5:05 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	40 min
Jun 22, 5:11 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	20 min
Jun 22, 5:45 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	30 min
Jun 22, 6:09 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	51 min
Jun 22, 6:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Charles, Prince George's	17 min
Jun 22, 6:40 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	50 min
Jun 22, 6:54 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	51 min
Jun 22, 7:01 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	29 min
Jun 22, 7:01 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	44 min
Jun 22, 7:13 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	62 min
Jun 22, 7:18 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	42 min
Jun 22, 7:22 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	68 min
Jun 22, 7:29 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	16 min
Jun 22, 7:49 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	41 min
Jun 22, 8:06 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	39 min
Jun 22, 8:11 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico, Worcester	64 min
Jun 26, 5:09 PM EDT	Severe Thunderstorm Warning	LWX	Charles	36 min
Jun 26, 5:39 PM EDT	Severe Thunderstorm Warning	LWX	Charles	36 min
Jun 26, 6:06 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	39 min
Jul 4, 2:29 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	31 min
Jul 4, 2:55 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	36 min
Jul 4, 5:18 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	27 min
Jul 4, 5:30 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Charles	60 min
Jul 4, 5:40 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Charles	35 min
Jul 4, 5:45 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	60 min
Jul 4, 6:04 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	41 min
Jul 4, 6:15 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Carroll, Frederick, Washington	30 min
Jul 4, 6:26 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	64 min
Jul 4, 6:27 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	48 min
Jul 4, 6:32 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Charles, Prince George's	28 min
Jul 4, 6:37 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	23 min
Jul 4, 6:45 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	30 min
Jul 4, 6:52 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	23 min
Jul 4, 6:54 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, Montgomery	40 min
Jul 4, 6:57 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	63 min
Jul 4, 7:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	57 min
Jul 4, 7:25 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	35 min
Jul 4, 7:26 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Baltimore, Harford, City of Baltimore	64 min
Jul 4, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	25 min
Jul 4, 7:31 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	44 min
Jul 4, 7:33 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	57 min
Jul 4, 7:47 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	58 min
Jul 4, 8:17 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	43 min
Jul 4, 8:38 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	37 min
Jul 4, 8:48 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	57 min
Jul 4, 9:31 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	44 min
Jul 4, 9:52 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	38 min
Jul 5, 1:11 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	49 min
Jul 5, 1:49 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	56 min
Jul 5, 4:06 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	39 min
Jul 5, 6:09 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Howard, Montgomery	51 min
Jul 5, 6:28 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	47 min
Jul 5, 6:51 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll	39 min
Jul 5, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's	36 min
Jul 5, 7:01 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	44 min
Jul 5, 7:28 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	32 min
Jul 5, 7:40 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	35 min
Jul 5, 7:42 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	33 min
Jul 5, 7:57 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery, Prince George's	33 min
Jul 5, 8:10 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	65 min
Jul 5, 8:25 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	50 min
Jul 5, 8:55 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	65 min
Jul 5, 9:01 PM EDT	Severe Thunderstorm Warning	PHI	Kent	59 min
Jul 5, 9:15 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore	30 min
Jul 5, 9:17 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	43 min
Jul 5, 9:18 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	42 min
Jul 5, 9:24 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	81 min
Jul 5, 9:31 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	44 min
Jul 5, 9:57 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	63 min
Jul 5, 10:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent	38 min
Jul 6, 8:39 AM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	66 min
Jul 6, 9:09 AM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	51 min
Jul 6, 5:47 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	31 min
Jul 9, 1:51 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	39 min
Jul 9, 2:13 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	32 min
Jul 9, 2:44 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	31 min
Jul 9, 5:12 PM EDT	Severe Thunderstorm Warning	LWX	Charles	33 min
Jul 9, 6:10 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	65 min
Jul 9, 6:20 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	40 min
Jul 9, 6:24 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Prince George's	24 min
Jul 9, 6:42 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	63 min
Jul 9, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	50 min
Jul 9, 7:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico, Worcester	60 min
Jul 18, 4:37 AM EDT	Severe Thunderstorm Warning	LWX	Garrett	23 min
Jul 18, 1:55 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	50 min
Jul 18, 2:12 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	33 min
Jul 18, 2:26 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Carroll, Frederick, Howard, Montgomery	49 min
Jul 18, 2:34 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	41 min
Jul 18, 2:41 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	28 min
Jul 18, 3:00 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Carroll, Frederick, Howard, Montgomery, Washington	49 min
Jul 18, 3:29 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore	31 min
Jul 18, 3:37 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	23 min
Jul 18, 3:47 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	28 min
Jul 18, 4:01 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, City of Baltimore	29 min
Jul 18, 4:13 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	62 min
Jul 18, 5:05 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	40 min
Jul 18, 5:09 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	51 min
Jul 18, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	61 min
Jul 18, 5:26 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Caroline, Queen Anne's, Talbot	49 min
Jul 18, 5:45 PM EDT	Severe Thunderstorm Warning Considerable damage threat	AKQ	Dorchester, Somerset, Wicomico	45 min
Jul 18, 5:53 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Queen Anne's, Talbot	52 min
Jul 18, 5:59 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	31 min
Jul 18, 6:12 PM EDT	Severe Thunderstorm Warning Considerable damage threat	AKQ	Dorchester, Somerset, Wicomico, Worcester	48 min
Jul 18, 6:23 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	27 min
Jul 18, 6:24 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	20 min
Jul 18, 6:40 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline	36 min
Jul 18, 6:44 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	34 min
Jul 21, 4:08 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	37 min
Jul 21, 4:17 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's	43 min
Jul 21, 4:24 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	42 min
Jul 21, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	34 min
Jul 21, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	34 min
Jul 21, 4:44 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Calvert, Prince George's	31 min
Jul 21, 5:08 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	37 min
Jul 21, 5:12 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	50 min
Jul 21, 6:00 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	45 min
Jul 21, 6:06 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	39 min
Jul 21, 6:22 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	16 min
Jul 21, 7:44 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	17 min
Jul 21, 10:00 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	45 min
Jul 21, 10:36 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	24 min
Jul 21, 10:39 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	66 min
Jul 21, 10:40 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	36 min
Jul 21, 11:28 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	62 min
Jul 21, 11:52 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	23 min
Jul 22, 12:18 AM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	57 min
Jul 22, 5:56 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	49 min
Jul 22, 6:32 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	58 min
Jul 27, 1:44 AM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	46 min
Jul 27, 2:11 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	49 min
Jul 27, 2:32 AM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	43 min
Jul 27, 2:54 AM EDT	Severe Thunderstorm Warning	PHI	Talbot	36 min
Jul 27, 2:32 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	31 min
Jul 27, 3:01 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	21 min
Jul 27, 7:30 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	30 min
Jul 27, 7:58 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	13 min
Jul 28, 3:32 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	58 min
Jul 28, 3:59 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	46 min
Jul 28, 4:16 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Frederick, Washington	44 min
Jul 28, 4:21 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	43 min
Jul 28, 4:36 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Howard, Montgomery	54 min
Jul 28, 4:46 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	29 min
Jul 28, 4:50 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Baltimore, Carroll, Harford	40 min
Jul 28, 5:12 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	33 min
Jul 28, 5:13 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	32 min
Jul 28, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	45 min
Jul 28, 5:27 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	48 min
Jul 28, 5:31 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, City of Baltimore	29 min
Jul 28, 5:34 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	41 min
Jul 28, 5:44 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	61 min
Jul 28, 5:45 PM EDT	Severe Thunderstorm Warning	PHI	Kent	60 min
Jul 28, 5:49 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	26 min
Jul 28, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	52 min
Jul 28, 5:58 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	47 min
Jul 28, 5:59 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	35 min
Jul 28, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	52 min
Jul 28, 6:17 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	28 min
Jul 28, 6:32 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	22 min
Jul 28, 6:38 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	67 min
Jul 28, 6:48 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert	27 min
Jul 28, 6:54 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	51 min
Jul 28, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	61 min
Jul 28, 7:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	45 min
Jul 28, 8:42 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	47 min
Aug 6, 2:46 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	44 min
Aug 7, 3:07 PM EDT	Severe Thunderstorm Warning	LWX	Washington	23 min
Aug 7, 3:29 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	46 min
Aug 7, 4:02 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	41 min
Aug 7, 4:56 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	15 min
Aug 7, 5:19 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, City of Baltimore	29 min
Aug 7, 5:58 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	27 min
Aug 7, 6:18 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	42 min
Aug 7, 6:58 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	32 min
Aug 8, 1:18 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	57 min
Aug 8, 1:30 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	45 min
Aug 8, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	46 min
Aug 8, 4:27 PM EDT	Severe Thunderstorm Warning	LWX	Charles	63 min
Aug 10, 1:14 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	61 min
Aug 10, 1:48 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	57 min
Aug 10, 1:57 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	48 min
Aug 10, 2:25 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Allegany, Washington	35 min
Aug 10, 2:29 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	31 min
Aug 10, 2:43 PM EDT	Severe Thunderstorm Warning	LWX	Washington	50 min
Aug 10, 2:46 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	44 min
Aug 10, 2:50 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	25 min
Aug 10, 2:56 PM EDT	Severe Thunderstorm Warning	LWX	Harford	38 min
Aug 10, 3:10 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	65 min
Aug 10, 3:12 PM EDT	Severe Thunderstorm Warning	LWX	Harford	48 min
Aug 10, 3:15 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	60 min
Aug 10, 3:21 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	39 min
Aug 10, 3:27 PM EDT	Severe Thunderstorm Warning	LWX	Washington	18 min
Aug 10, 3:55 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more	50 min
Aug 10, 3:57 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	48 min
Aug 10, 4:03 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	57 min
Aug 10, 4:10 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Baltimore, Carroll, Howard	35 min
Aug 10, 4:33 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	42 min
Aug 10, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	66 min
Aug 10, 4:41 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Calvert, Howard, Prince George's, City of Baltimore	31 min
Aug 10, 5:05 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	25 min
Aug 10, 5:21 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Prince George's	24 min
Aug 10, 5:29 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	46 min
Aug 10, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	45 min
Aug 10, 5:33 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	27 min
Aug 10, 5:36 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	24 min
Aug 10, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	39 min
Aug 10, 5:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	45 min
Aug 10, 5:56 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	64 min
Aug 10, 6:07 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	38 min
Aug 10, 6:26 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	64 min
Aug 10, 6:51 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	24 min
Aug 11, 1:09 AM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	36 min
Aug 14, 1:37 PM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	38 min
Aug 16, 4:35 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	40 min
Aug 16, 4:56 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	34 min
Aug 16, 5:00 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	32 min
Aug 16, 5:48 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	42 min
Aug 16, 9:07 PM EDT	Severe Thunderstorm Warning	LWX	Charles	23 min
Aug 16, 9:17 PM EDT	Severe Thunderstorm Warning	LWX	Charles	13 min
Aug 16, 9:29 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	46 min
Aug 17, 9:03 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	42 min
Aug 20, 2:46 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	29 min
Aug 20, 2:57 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	33 min
Aug 20, 5:05 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	40 min
Aug 20, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	50 min
Aug 20, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	39 min
Aug 20, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	48 min
Aug 20, 7:02 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	43 min
Aug 22, 8:57 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	33 min
Aug 22, 11:35 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	25 min
Aug 27, 4:11 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	34 min
Aug 27, 4:45 PM EDT	Severe Thunderstorm Warning	LWX	Washington	45 min
Aug 27, 5:17 PM EDT	Severe Thunderstorm Warning	LWX	Washington	28 min
Aug 27, 5:40 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	50 min
Aug 27, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	40 min
Aug 27, 6:56 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	49 min
Sep 1, 8:19 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	41 min
Sep 1, 8:59 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	61 min
Sep 1, 9:40 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	65 min
Sep 2, 12:00 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Harford, Washington	45 min
Sep 2, 12:39 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 1 more	51 min
Sep 2, 12:46 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Howard, Montgomery	44 min
Sep 2, 1:03 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	57 min
Sep 2, 1:06 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	39 min
Sep 2, 1:12 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	48 min
Sep 2, 1:43 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	47 min
Sep 2, 2:05 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	40 min
Sep 2, 2:07 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	38 min
Sep 2, 2:38 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	47 min
Sep 2, 2:42 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	48 min
Sep 3, 12:02 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	43 min
Sep 3, 9:49 AM EDT	Severe Thunderstorm Warning	LWX	Washington	41 min
Sep 3, 8:20 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	40 min
Sep 3, 8:54 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	36 min
Sep 3, 8:57 PM EDT	Severe Thunderstorm Warning	LWX	Washington	48 min
Sep 3, 9:35 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	40 min
Sep 3, 10:03 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	42 min
Sep 3, 10:08 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	52 min
Sep 3, 10:41 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard	35 min
Sep 3, 11:13 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	47 min
Sep 3, 11:37 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Montgomery, Prince George's	38 min
Sep 3, 11:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Calvert, Prince George's	49 min
Sep 3, 11:59 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Queen Anne's, Talbot	61 min
Sep 4, 12:18 AM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Caroline, Queen Anne's, Talbot	42 min
Sep 4, 12:52 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	53 min
Sep 4, 2:18 AM EDT	Severe Thunderstorm Warning	AKQ	Somerset	27 min
Sep 4, 1:19 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	41 min
Sep 4, 4:23 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	27 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

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.