Alert archive / Maryland / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Maryland, 2025

287 severe thunderstorm warnings in 2025. 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 2025. Tap one for its archive.

Severe Thunderstorm Warnings: 287
Busiest month: July96 severe thunderstorm warnings
Busiest day: May 16, 202524 severe thunderstorm warnings

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

184 of 287 severe thunderstorm warnings covering Maryland in 2025 had a qualifying storm report inside them; 487 of 537 hail, wind and damage reports fell inside a warning, on average 21 minutes after it went out.

Maryland, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	287	184	36%	537	91%	21 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Baltimore/Washington: severe thunderstorm warnings	379	272	28%	989	84%	19 min
NWS Philadelphia/Mount Holly: severe thunderstorm warnings	233	131	44%	502	91%	23 min
NWS Wakefield, VA: severe thunderstorm warnings	329	221	33%	621	92%	23 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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
Dec 31, 7:15 PM EST	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	22 min
Mar 5, 1:06 PM EST	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	24 min
Mar 5, 4:39 PM EST	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	31 min
Mar 5, 4:43 PM EST	Severe Thunderstorm Warning	PHI	Caroline	47 min
Mar 5, 5:09 PM EST	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	38 min
Mar 5, 6:05 PM EST	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	55 min
Mar 5, 6:10 PM EST	Severe Thunderstorm Warning	LWX	Allegany	29 min
Mar 16, 12:52 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	53 min
Mar 16, 1:44 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	37 min
Mar 16, 4:24 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	33 min
Mar 16, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	31 min
Mar 16, 6:53 PM EDT	Severe Thunderstorm Warning	LWX	Washington	27 min
Mar 16, 8:41 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	34 min
Mar 31, 8:38 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	37 min
Mar 31, 8:56 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	49 min
Mar 31, 9:00 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	11 min
Mar 31, 9:12 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	48 min
Mar 31, 9:13 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	47 min
Mar 31, 9:48 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	42 min
Apr 3, 6:50 AM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	25 min
Apr 3, 6:58 AM EDT	Severe Thunderstorm Warning	LWX	Garrett	19 min
Apr 5, 9:40 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick	35 min
Apr 5, 10:04 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	26 min
Apr 15, 5:19 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	26 min
Apr 19, 8:36 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	24 min
Apr 19, 8:58 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	32 min
Apr 19, 9:10 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	35 min
Apr 19, 9:18 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	27 min
Apr 19, 9:39 PM EDT	Severe Thunderstorm Warning	LWX	Washington	36 min
Apr 19, 10:05 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	25 min
Apr 19, 10:24 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford	36 min
Apr 19, 10:49 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	41 min
Apr 26, 3:48 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	42 min
Apr 29, 11:41 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	49 min
May 1, 3:48 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	42 min
May 1, 4:05 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	25 min
May 1, 4:27 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	48 min
May 1, 5:13 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	47 min
May 1, 6:39 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	26 min
May 3, 3:27 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	48 min
May 3, 3:58 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, Montgomery	47 min
May 3, 4:33 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford, City of Baltimore	42 min
May 3, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	51 min
May 3, 5:04 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	41 min
May 3, 5:39 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Washington	66 min
May 3, 5:41 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	64 min
May 5, 5:44 PM EDT	Severe Thunderstorm Warning	LWX	Charles	46 min
May 5, 5:52 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	23 min
May 5, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	25 min
May 5, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Charles	25 min
May 5, 6:27 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	48 min
May 5, 7:19 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	26 min
May 9, 1:46 AM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	44 min
May 9, 2:22 AM EDT	Severe Thunderstorm Warning	AKQ	Worcester	23 min
May 16, 2:32 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	58 min
May 16, 2:37 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	53 min
May 16, 3:24 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	36 min
May 16, 3:33 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	27 min
May 16, 3:53 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	52 min
May 16, 3:58 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	47 min
May 16, 4:00 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	32 min
May 16, 4:21 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	24 min
May 16, 4:30 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	45 min
May 16, 4:34 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery, Washington	41 min
May 16, 4:38 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	37 min
May 16, 5:10 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	35 min
May 16, 5:12 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 3 more	63 min
May 16, 5:14 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Baltimore, Frederick, Howard, Montgomery, Prince George's and 1 more	63 min
May 16, 5:19 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Montgomery	26 min
May 16, 5:27 PM EDT	Severe Thunderstorm Warning Destructive damage threat	LWX	Baltimore, Carroll	33 min
May 16, 5:40 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Calvert, Charles, Prince George's	50 min
May 16, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	50 min
May 16, 5:43 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	47 min
May 16, 5:51 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Baltimore, Cecil, Harford, City of Baltimore	54 min
May 16, 6:04 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	56 min
May 16, 6:08 PM EDT	Severe Thunderstorm Warning Considerable damage threat	AKQ	Dorchester, Somerset, Wicomico	52 min
May 16, 6:11 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	64 min
May 16, 6:52 PM EDT	Severe Thunderstorm Warning Considerable damage threat	AKQ	Dorchester, Somerset, Wicomico, Worcester	48 min
May 17, 1:34 AM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	26 min
May 22, 4:06 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	22 min
May 22, 4:19 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	41 min
May 22, 6:50 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	14 min
May 22, 7:30 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	30 min
May 30, 6:47 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	32 min
May 30, 6:47 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	43 min
May 30, 7:05 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	55 min
May 30, 7:28 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	47 min
May 30, 8:01 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	29 min
May 30, 8:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	27 min
May 30, 10:26 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	49 min
May 30, 10:29 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	46 min
May 31, 1:17 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	43 min
May 31, 1:23 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	22 min
May 31, 1:30 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	45 min
May 31, 1:42 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	48 min
May 31, 2:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	45 min
May 31, 2:24 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	36 min
May 31, 3:04 PM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	26 min
May 31, 3:17 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	28 min
May 31, 3:41 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset	34 min
May 31, 3:56 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	34 min
May 31, 4:16 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	29 min
Jun 5, 7:48 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	42 min
Jun 6, 2:22 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	23 min
Jun 13, 2:19 PM EDT	Severe Thunderstorm Warning	AKQ	Wicomico, Worcester	28 min
Jun 13, 5:06 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	22 min
Jun 13, 7:11 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	34 min
Jun 17, 9:42 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	48 min
Jun 18, 1:16 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	44 min
Jun 18, 1:47 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's, City of Baltimore	43 min
Jun 18, 2:27 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, City of Baltimore	33 min
Jun 18, 3:00 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	45 min
Jun 18, 3:39 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	51 min
Jun 18, 4:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline	47 min
Jun 19, 1:44 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	61 min
Jun 19, 2:07 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	38 min
Jun 19, 2:43 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Montgomery, Washington	47 min
Jun 19, 3:14 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick	46 min
Jun 19, 3:27 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	33 min
Jun 19, 3:42 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	63 min
Jun 19, 3:51 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Howard, Montgomery, Prince George's	54 min
Jun 19, 4:05 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	25 min
Jun 19, 4:20 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Harford, Howard, Montgomery, City of Baltimore	40 min
Jun 19, 4:25 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	50 min
Jun 19, 4:27 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's	63 min
Jun 19, 4:29 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Anne Arundel, Baltimore, Howard, Prince George's, City of Baltimore	61 min
Jun 19, 4:43 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	47 min
Jun 19, 4:59 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford, City of Baltimore	76 min
Jun 19, 5:08 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's	52 min
Jun 19, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	38 min
Jun 19, 5:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent	49 min
Jun 19, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	39 min
Jun 19, 6:09 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	36 min
Jun 19, 6:14 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	46 min
Jun 19, 6:45 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico, Worcester	45 min
Jun 25, 1:32 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore	28 min
Jun 25, 2:53 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	37 min
Jun 25, 3:04 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	26 min
Jun 25, 3:13 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	47 min
Jun 25, 3:35 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	40 min
Jun 25, 3:39 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	36 min
Jun 25, 4:01 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	29 min
Jun 25, 4:09 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	51 min
Jun 25, 4:21 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	22 min
Jun 25, 4:23 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	37 min
Jun 25, 4:50 PM EDT	Severe Thunderstorm Warning	LWX	Prince George's	25 min
Jun 25, 5:06 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's	24 min
Jun 25, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	34 min
Jun 26, 2:04 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	41 min
Jun 26, 2:48 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	42 min
Jun 26, 3:29 PM EDT	Severe Thunderstorm Warning	AKQ	Worcester	49 min
Jun 26, 6:22 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore	38 min
Jun 26, 6:35 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	25 min
Jun 26, 6:43 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	32 min
Jun 26, 7:01 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	59 min
Jun 26, 7:09 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard	36 min
Jun 26, 8:06 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	37 min
Jun 26, 8:30 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	45 min
Jun 26, 9:26 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	49 min
Jun 26, 10:15 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's	30 min
Jun 26, 11:41 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's, Saint Mary's	37 min
Jun 28, 5:23 PM EDT	Severe Thunderstorm Warning	LWX	Washington	37 min
Jun 28, 5:35 PM EDT	Severe Thunderstorm Warning	LWX	Washington	25 min
Jun 28, 5:53 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	52 min
Jun 28, 7:11 PM EDT	Severe Thunderstorm Warning	LWX	Washington	34 min
Jun 29, 2:21 AM EDT	Severe Thunderstorm Warning	PHI	Caroline	26 min
Jun 29, 4:57 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	33 min
Jun 29, 5:31 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, City of Baltimore	14 min
Jun 30, 4:32 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	43 min
Jun 30, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	30 min
Jun 30, 6:36 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	24 min
Jun 30, 7:21 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	39 min
Jul 1, 2:29 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	31 min
Jul 1, 2:38 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	52 min
Jul 1, 3:15 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, Montgomery, City of Baltimore	45 min
Jul 1, 3:18 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Calvert, Howard, Montgomery, Prince George's and 1 more	57 min
Jul 1, 4:02 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford, Howard, City of Baltimore	28 min
Jul 1, 4:10 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	35 min
Jul 1, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	55 min
Jul 1, 4:53 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	37 min
Jul 1, 4:53 PM EDT	Severe Thunderstorm Warning	LWX	Cecil	33 min
Jul 1, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	56 min
Jul 1, 5:34 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	41 min
Jul 1, 6:04 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	41 min
Jul 1, 6:44 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	46 min
Jul 1, 7:23 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	49 min
Jul 1, 7:56 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	49 min
Jul 1, 8:15 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	60 min
Jul 1, 8:19 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Somerset, Wicomico	41 min
Jul 1, 9:05 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	40 min
Jul 8, 3:08 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	37 min
Jul 8, 3:56 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Howard, Montgomery	34 min
Jul 8, 4:36 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	39 min
Jul 8, 4:50 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore	40 min
Jul 8, 4:57 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	33 min
Jul 8, 5:07 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	23 min
Jul 8, 5:14 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	46 min
Jul 8, 5:28 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	77 min
Jul 8, 5:45 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	60 min
Jul 8, 5:53 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Kent, Queen Anne's	37 min
Jul 8, 6:04 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Prince George's	17 min
Jul 8, 6:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's, Talbot	47 min
Jul 8, 6:34 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Queen Anne's, Talbot	41 min
Jul 8, 6:53 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	67 min
Jul 8, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	66 min
Jul 8, 7:11 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Talbot	64 min
Jul 8, 7:28 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	47 min
Jul 8, 8:09 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	51 min
Jul 8, 8:40 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico, Worcester	41 min
Jul 9, 4:49 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	41 min
Jul 9, 6:08 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	40 min
Jul 9, 6:31 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	29 min
Jul 9, 6:56 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	34 min
Jul 9, 7:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	30 min
Jul 9, 7:17 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	73 min
Jul 9, 7:45 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	33 min
Jul 9, 8:06 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	54 min
Jul 9, 8:09 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	66 min
Jul 9, 8:51 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	39 min
Jul 9, 9:28 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Worcester	14 min
Jul 11, 4:17 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	28 min
Jul 11, 4:41 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	34 min
Jul 12, 4:42 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	33 min
Jul 12, 5:47 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	28 min
Jul 12, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	40 min
Jul 14, 5:33 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	27 min
Jul 14, 6:29 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Harford, Prince George's, City of Baltimore	46 min
Jul 14, 6:32 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	43 min
Jul 14, 7:07 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel	38 min
Jul 14, 7:31 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	44 min
Jul 14, 7:35 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	40 min
Jul 14, 8:11 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Prince George's, Saint Mary's	64 min
Jul 16, 6:24 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	36 min
Jul 16, 8:58 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll	32 min
Jul 17, 8:39 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Prince George's	21 min
Jul 19, 6:01 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	30 min
Jul 19, 8:20 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Charles, Saint Mary's	25 min
Jul 19, 8:22 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	25 min
Jul 19, 8:52 PM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	23 min
Jul 19, 9:41 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	64 min
Jul 19, 9:58 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	47 min
Jul 25, 9:06 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	54 min
Jul 25, 9:09 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	44 min
Jul 26, 3:37 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick	24 min
Jul 26, 8:10 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	17 min
Jul 26, 11:00 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	45 min
Jul 27, 1:31 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	40 min
Jul 27, 1:57 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	63 min
Jul 27, 2:10 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	52 min
Jul 27, 2:47 PM EDT	Severe Thunderstorm Warning	LWX	Calvert	28 min
Jul 27, 2:58 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Saint Mary's	47 min
Jul 27, 3:05 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	70 min
Jul 27, 3:23 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	52 min
Jul 27, 3:58 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	24 min
Jul 31, 1:24 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	36 min
Jul 31, 2:06 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery, Prince George's	24 min
Jul 31, 2:35 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	25 min
Jul 31, 2:42 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	33 min
Jul 31, 3:09 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	21 min
Jul 31, 3:29 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's, Talbot	46 min
Jul 31, 3:39 PM EDT	Severe Thunderstorm Warning	LWX	Washington	36 min
Jul 31, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	49 min
Jul 31, 4:02 PM EDT	Severe Thunderstorm Warning Considerable damage threat	LWX	Frederick, Washington	28 min
Jul 31, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	34 min
Jul 31, 4:32 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	21 min
Jul 31, 5:02 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery	28 min
Jul 31, 5:11 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	49 min
Jul 31, 5:59 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester, Wicomico	61 min
Aug 14, 3:33 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	27 min
Aug 17, 3:01 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	44 min
Aug 17, 3:24 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Garrett	36 min
Aug 17, 5:23 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	37 min
Aug 17, 5:55 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	50 min
Aug 17, 6:13 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Howard, Montgomery	47 min
Aug 24, 10:56 PM EDT	Severe Thunderstorm Warning	LWX	Garrett	34 min
Sep 4, 3:00 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	30 min
Sep 6, 2:47 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	28 min
Sep 6, 2:55 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	20 min
Sep 6, 3:11 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	38 min
Sep 6, 4:20 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	40 min
Sep 6, 6:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	32 min
Sep 25, 6:15 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	30 min
Oct 19, 6:35 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Washington	23 min
Nov 5, 8:56 PM EST	Severe Thunderstorm Warning	LWX	Frederick, Washington	49 min
Nov 5, 9:23 PM EST	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Frederick, Harford	52 min
Nov 5, 9:50 PM EST	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford, City of Baltimore	40 min
Dec 19, 1:42 PM EST	Severe Thunderstorm Warning	LWX	Cecil, Harford	33 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 2024 2026

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.