Alert archive / Maryland / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Maryland, 2016
241 severe thunderstorm warnings in 2016. 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 2016. Tap one for its archive.
- Severe Thunderstorm Warnings
- 241
- Busiest month
- July75 severe thunderstorm warnings
- Busiest day
- June 21, 201635 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 |
|---|---|---|---|---|
| Feb 24, 4:10 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert | 17 min |
| Feb 24, 4:51 PM EST | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery, Washington | 39 min |
| Feb 24, 5:29 PM EST | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 46 min |
| Feb 24, 5:46 PM EST | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 59 min |
| Feb 24, 5:59 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 2 more | 61 min |
| Feb 24, 6:18 PM EST | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 42 min |
| Feb 24, 6:39 PM EST | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 36 min |
| Feb 24, 6:42 PM EST | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 63 min |
| Feb 24, 6:53 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 52 min |
| Feb 24, 7:12 PM EST | Severe Thunderstorm Warning | PHI | Cecil | 33 min |
| Feb 24, 7:39 PM EST | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 51 min |
| Feb 24, 7:58 PM EST | Severe Thunderstorm Warning | AKQ | Dorchester | 47 min |
| Feb 24, 8:47 PM EST | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 43 min |
| Feb 24, 8:49 PM EST | Severe Thunderstorm Warning | AKQ | Dorchester | 41 min |
| Apr 1, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery, Washington | 14 min |
| Apr 2, 10:51 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 39 min |
| Apr 2, 11:24 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 51 min |
| Apr 2, 11:56 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 49 min |
| Apr 7, 10:33 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 41 min |
| Apr 7, 10:44 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Prince George's, City of Baltimore | 61 min |
| Apr 7, 12:08 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 37 min |
| Apr 7, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 45 min |
| Apr 7, 5:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 41 min |
| Apr 7, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 30 min |
| May 1, 7:29 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 28 min |
| May 2, 6:15 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 29 min |
| May 2, 6:27 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 48 min |
| May 2, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 47 min |
| May 2, 7:18 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 30 min |
| May 2, 7:24 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 28 min |
| May 2, 7:25 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 35 min |
| May 2, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Prince George's | 29 min |
| May 2, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 68 min |
| May 2, 8:49 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 41 min |
| May 2, 9:20 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 40 min |
| May 2, 10:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 60 min |
| May 14, 6:55 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 50 min |
| May 14, 7:42 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 48 min |
| May 23, 3:12 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 34 min |
| May 23, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 66 min |
| May 23, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 47 min |
| May 23, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 30 min |
| Jun 5, 2:40 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 53 min |
| Jun 5, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Washington | 48 min |
| Jun 5, 3:52 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 38 min |
| Jun 5, 4:22 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 1 more | 53 min |
| Jun 5, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 38 min |
| Jun 5, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 52 min |
| Jun 7, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 41 min |
| Jun 8, 10:28 AM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, City of Baltimore | 62 min |
| Jun 8, 10:56 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 34 min |
| Jun 16, 3:11 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 79 min |
| Jun 16, 4:39 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 36 min |
| Jun 16, 4:43 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 62 min |
| Jun 16, 4:50 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 22 min |
| Jun 16, 5:44 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 31 min |
| Jun 16, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 34 min |
| Jun 16, 6:01 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 69 min |
| Jun 16, 8:20 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| Jun 16, 8:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Montgomery, Prince George's, Saint Mary's | 71 min |
| Jun 16, 9:12 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 48 min |
| Jun 21, 12:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 44 min |
| Jun 21, 12:39 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 36 min |
| Jun 21, 12:45 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 25 min |
| Jun 21, 12:47 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 27 min |
| Jun 21, 12:50 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 40 min |
| Jun 21, 1:01 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery, Washington | 31 min |
| Jun 21, 1:19 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Howard, Montgomery and 2 more | 56 min |
| Jun 21, 1:23 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 52 min |
| Jun 21, 1:51 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 39 min |
| Jun 21, 1:52 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 53 min |
| Jun 21, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 52 min |
| Jun 21, 2:08 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 67 min |
| Jun 21, 2:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 32 min |
| Jun 21, 2:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 58 min |
| Jun 21, 2:20 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 36 min |
| Jun 21, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 54 min |
| Jun 21, 2:55 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 65 min |
| Jun 21, 3:11 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 49 min |
| Jun 21, 3:29 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 22 min |
| Jun 21, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 54 min |
| Jun 21, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 60 min |
| Jun 21, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 53 min |
| Jun 21, 4:26 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 49 min |
| Jun 21, 4:41 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 34 min |
| Jun 21, 4:43 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 36 min |
| Jun 21, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 48 min |
| Jun 21, 5:16 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 59 min |
| Jun 21, 5:17 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 43 min |
| Jun 21, 5:54 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 51 min |
| Jun 21, 6:31 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 44 min |
| Jun 21, 6:36 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 54 min |
| Jun 21, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 51 min |
| Jun 21, 7:20 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 40 min |
| Jun 21, 7:31 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 44 min |
| Jun 21, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 11 min |
| Jun 21, 8:19 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 41 min |
| Jun 21, 8:22 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 9 min |
| Jun 21, 8:38 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 37 min |
| Jun 24, 3:18 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 42 min |
| Jun 28, 4:41 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 49 min |
| Jun 28, 5:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore | 42 min |
| Jun 28, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 33 min |
| Jun 28, 5:55 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 50 min |
| Jun 28, 6:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 48 min |
| Jun 28, 6:52 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 38 min |
| Jun 28, 7:04 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 24 min |
| Jun 28, 7:30 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 45 min |
| Jul 1, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 1, 5:41 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 38 min |
| Jul 1, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 43 min |
| Jul 1, 6:21 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 22 min |
| Jul 1, 10:38 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 33 min |
| Jul 9, 5:00 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 30 min |
| Jul 16, 4:17 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 43 min |
| Jul 16, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 45 min |
| Jul 16, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 41 min |
| Jul 16, 5:38 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 37 min |
| Jul 16, 5:44 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Prince George's | 26 min |
| Jul 16, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 47 min |
| Jul 16, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 45 min |
| Jul 16, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 24 min |
| Jul 18, 1:24 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 36 min |
| Jul 18, 1:53 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 37 min |
| Jul 18, 2:23 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 52 min |
| Jul 18, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 18 min |
| Jul 18, 3:38 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 52 min |
| Jul 18, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 45 min |
| Jul 18, 4:05 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 40 min |
| Jul 18, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's | 82 min |
| Jul 18, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 38 min |
| Jul 18, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 57 min |
| Jul 18, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 15 min |
| Jul 18, 6:24 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 40 min |
| Jul 18, 6:35 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 40 min |
| Jul 19, 10:21 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 39 min |
| Jul 19, 10:25 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 50 min |
| Jul 19, 11:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 25 min |
| Jul 19, 11:08 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 52 min |
| Jul 19, 11:15 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 60 min |
| Jul 19, 11:17 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 28 min |
| Jul 19, 11:35 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 55 min |
| Jul 19, 11:41 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 49 min |
| Jul 19, 11:57 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 30 min |
| Jul 20, 12:12 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 48 min |
| Jul 23, 5:03 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 28 min |
| Jul 23, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 12 min |
| Jul 23, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 63 min |
| Jul 23, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 65 min |
| Jul 23, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 44 min |
| Jul 24, 8:53 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 25 min |
| Jul 25, 1:05 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert | 26 min |
| Jul 25, 1:20 AM EDT | Severe Thunderstorm Warning | PHI | Talbot | 40 min |
| Jul 25, 1:36 AM EDT | Severe Thunderstorm Warning | LWX | Calvert | 13 min |
| Jul 25, 1:59 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 46 min |
| Jul 25, 1:59 AM EDT | Severe Thunderstorm Warning | PHI | Talbot | 46 min |
| Jul 25, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 45 min |
| Jul 25, 3:31 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 44 min |
| Jul 25, 3:47 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jul 25, 4:04 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 39 min |
| Jul 25, 4:28 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 47 min |
| Jul 25, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 44 min |
| Jul 25, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 56 min |
| Jul 25, 5:44 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 18 min |
| Jul 25, 10:50 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 40 min |
| Jul 28, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 40 min |
| Jul 28, 1:21 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 39 min |
| Jul 28, 1:58 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 47 min |
| Jul 28, 2:58 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 47 min |
| Jul 28, 4:31 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 44 min |
| Jul 28, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 46 min |
| Jul 28, 5:43 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 18 min |
| Jul 28, 5:56 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 49 min |
| Jul 28, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 65 min |
| Jul 28, 7:04 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 26 min |
| Jul 28, 7:30 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 45 min |
| Jul 28, 8:29 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 34 min |
| Jul 30, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jul 30, 4:11 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 49 min |
| Jul 30, 7:00 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 45 min |
| Jul 30, 9:01 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 29 min |
| Jul 30, 9:07 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's, Talbot | 38 min |
| Jul 31, 3:52 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 38 min |
| Aug 1, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 33 min |
| Aug 1, 5:21 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 39 min |
| Aug 1, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 62 min |
| Aug 1, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 53 min |
| Aug 13, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 32 min |
| Aug 13, 7:26 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 49 min |
| Aug 13, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 31 min |
| Aug 14, 7:18 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 27 min |
| Aug 14, 7:38 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 37 min |
| Aug 14, 7:57 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 48 min |
| Aug 14, 9:01 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 44 min |
| Aug 14, 9:03 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 42 min |
| Aug 14, 9:34 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 56 min |
| Aug 14, 9:42 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 49 min |
| Aug 14, 9:49 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 41 min |
| Aug 15, 2:04 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 26 min |
| Aug 15, 2:29 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 31 min |
| Aug 15, 2:47 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 43 min |
| Aug 15, 4:40 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 50 min |
| Aug 15, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 39 min |
| Aug 15, 5:43 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 47 min |
| Aug 15, 6:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 42 min |
| Aug 15, 6:50 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 55 min |
| Aug 15, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 37 min |
| Aug 16, 2:28 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 47 min |
| Aug 16, 2:47 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Aug 16, 3:16 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 44 min |
| Aug 16, 3:55 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 50 min |
| Aug 16, 4:44 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 46 min |
| Aug 16, 5:04 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 26 min |
| Aug 16, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 46 min |
| Aug 16, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 38 min |
| Aug 16, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 24 min |
| Aug 16, 7:00 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 60 min |
| Aug 17, 8:57 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 33 min |
| Aug 17, 9:17 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's, Saint Mary's | 43 min |
| Aug 17, 9:21 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Howard, Prince George's | 24 min |
| Aug 17, 9:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 28 min |
| Aug 17, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 38 min |
| Aug 17, 10:02 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 43 min |
| Aug 17, 10:25 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 50 min |
| Aug 17, 10:29 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 46 min |
| Aug 17, 10:44 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 61 min |
| Aug 17, 10:57 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 33 min |
| Aug 21, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 39 min |
| Aug 21, 4:32 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 14 min |
| Aug 21, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 39 min |
| Aug 31, 10:48 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery | 42 min |
| Aug 31, 11:27 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 37 min |
| Sep 7, 4:45 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 30 min |
| Sep 7, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 39 min |
| Sep 7, 5:39 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 51 min |
| Sep 7, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 30 min |
| Sep 7, 6:44 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 31 min |
| Sep 7, 6:56 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 49 min |
| Sep 28, 5:50 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 40 min |
| Oct 20, 8:15 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 45 min |
| Nov 30, 9:40 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 35 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County53
- Montgomery County52
- Anne Arundel County44
- Frederick County38
- Washington County35
- Queen Anne's County34
- Howard County29
- Charles County29
- Baltimore County29
- Caroline County29
- Calvert County26
- Kent County24
- Talbot County24
- Carroll County22
- Harford County19
- Cecil County17
- City of Baltimore16
- Saint Mary's County16
- Garrett County12
- Wicomico County9
- Somerset County9
- Allegany County8
- Worcester County8
- Dorchester County6
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.