Alert archive / Maryland / Mesoscale Discussions
Mesoscale Discussions in Maryland, 2003
111 mesoscale discussions in 2003. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2003. Tap one for its archive.
- Mesoscale Discussions
- 111
- Busiest month
- July27 mesoscale discussions
- Busiest day
- August 27, 20038 mesoscale discussions
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 |
|---|---|---|---|---|
| Jan 3, 9:55 AM EST | Mesoscale Discussion | SPC | Carroll | 4 hr |
| Jan 16, 9:53 PM EST | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 6 hr |
| Jan 30, 2:18 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 6 more | 4 hr |
| Feb 15, 11:58 AM EST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Somerset and 2 more | 7 hr |
| Feb 16, 12:12 AM EST | Mesoscale Discussion | SPC | Allegany, Calvert, Charles, Garrett, Saint Mary's | 5 hr |
| Feb 16, 11:45 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more | 6 hr |
| Feb 16, 7:04 PM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 12 more | 4 hr |
| Feb 16, 7:31 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Talbot | 6 hr |
| Feb 16, 11:19 PM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 6 hr |
| Feb 26, 6:06 PM EST | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 4 hr |
| Feb 27, 3:19 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 8 more | 6 hr |
| Mar 6, 5:18 AM EST | Mesoscale Discussion | SPC | Garrett | 4 hr |
| Mar 13, 1:55 PM EST | Mesoscale Discussion | SPC | Charles, Frederick, Howard, Montgomery, Washington | 2 hr |
| Mar 13, 6:04 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Talbot | 86 min |
| Mar 13, 6:33 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Talbot | 87 min |
| Mar 21, 12:18 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 117 min |
| Mar 21, 2:05 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more | 2 hr |
| Mar 29, 12:01 PM EST | Mesoscale Discussion | SPC | Baltimore, Carroll, Charles, Frederick, Howard, Montgomery and 3 more | 89 min |
| Mar 29, 4:33 PM EST | Mesoscale Discussion | SPC | Charles | 117 min |
| Mar 30, 10:10 AM EST | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 3 hr |
| May 1, 6:02 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more | 3 hr |
| May 7, 12:49 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 5 more | 116 min |
| May 7, 3:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 114 min |
| May 7, 6:07 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 53 min |
| May 8, 2:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 16 more | 117 min |
| May 8, 4:46 PM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Garrett, Saint Mary's | 59 min |
| May 10, 4:33 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 87 min |
| May 11, 2:52 PM EDT | Mesoscale Discussion | SPC | Garrett | 113 min |
| May 11, 3:18 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Charles and 14 more | 117 min |
| May 31, 1:06 PM EDT | Mesoscale Discussion | SPC | Carroll, Frederick, Howard, Montgomery, Washington | 114 min |
| May 31, 3:58 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 2 hr |
| Jun 11, 3:05 PM EDT | Mesoscale Discussion | SPC | Montgomery | 25 min |
| Jun 11, 7:07 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 53 min |
| Jun 12, 12:02 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 4 more | 58 min |
| Jun 12, 4:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 11 more | 114 min |
| Jun 13, 12:52 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more | 83 min |
| Jun 13, 5:38 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Dorchester, Howard, Montgomery and 4 more | 97 min |
| Jun 14, 12:01 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 12 more | 119 min |
| Jun 14, 4:53 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 2 hr |
| Jun 27, 1:45 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 2 hr |
| Jun 30, 1:43 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Talbot and 2 more | 92 min |
| Jul 5, 4:20 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 2 hr |
| Jul 6, 12:28 AM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 9 more | 2 hr |
| Jul 6, 1:04 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 12 more | 2 hr |
| Jul 6, 5:46 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Montgomery, Prince George's, Saint Mary's | 59 min |
| Jul 6, 7:23 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Harford and 6 more | 67 min |
| Jul 7, 2:23 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 67 min |
| Jul 7, 6:29 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 61 min |
| Jul 7, 10:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Washington | 58 min |
| Jul 8, 7:29 AM EDT | Mesoscale Discussion | SPC | Garrett | 61 min |
| Jul 8, 8:12 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Howard, Montgomery and 1 more | 93 min |
| Jul 8, 11:16 PM EDT | Mesoscale Discussion | SPC | Allegany | 119 min |
| Jul 9, 10:28 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more | 92 min |
| Jul 9, 12:09 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Kent, Queen Anne's and 5 more | 96 min |
| Jul 9, 2:47 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 4 more | 88 min |
| Jul 9, 3:48 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 7 more | 117 min |
| Jul 9, 7:36 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 8 more | 114 min |
| Jul 10, 6:57 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 93 min |
| Jul 10, 10:37 PM EDT | Mesoscale Discussion | SPC | Montgomery | 83 min |
| Jul 12, 10:53 AM EDT | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Jul 14, 3:49 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 56 min |
| Jul 14, 6:17 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Montgomery, Washington | 2 hr |
| Jul 18, 1:14 PM EDT | Mesoscale Discussion | SPC | Charles | 2 hr |
| Jul 18, 4:49 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 116 min |
| Jul 22, 1:19 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 86 min |
| Jul 22, 7:45 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 90 min |
| Jul 23, 1:05 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 6 more | 115 min |
| Jul 28, 5:41 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 2 hr |
| Aug 5, 8:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Charles, Prince George's | 88 min |
| Aug 22, 3:27 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 1 more | 3 hr |
| Aug 22, 5:42 PM EDT | Mesoscale Discussion | SPC | Charles, Montgomery, Prince George's, Saint Mary's | 2 hr |
| Aug 22, 7:22 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Kent, Queen Anne's | 53 min |
| Aug 26, 11:08 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 2 hr |
| Aug 26, 2:19 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Charles, Frederick, Garrett and 5 more | 116 min |
| Aug 26, 4:45 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Prince George's, Queen Anne's and 5 more | 90 min |
| Aug 26, 5:48 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Prince George's, Queen Anne's and 5 more | 57 min |
| Aug 26, 10:18 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 57 min |
| Aug 27, 12:22 AM EDT | Mesoscale Discussion | SPC | Charles | 53 min |
| Aug 27, 6:11 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 2 hr |
| Aug 27, 9:23 AM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 2 hr |
| Aug 27, 2:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 65 min |
| Aug 27, 3:09 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Frederick and 7 more | 66 min |
| Aug 27, 5:03 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 10 more | 87 min |
| Aug 27, 6:56 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 64 min |
| Aug 27, 9:19 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 56 min |
| Aug 29, 2:59 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 14 more | 3 hr |
| Aug 29, 7:29 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 4 more | 61 min |
| Aug 30, 11:20 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 3 hr |
| Aug 30, 3:11 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 10 more | 2 hr |
| Aug 30, 6:29 PM EDT | Mesoscale Discussion | SPC | Somerset, Wicomico, Worcester | 61 min |
| Sep 1, 7:17 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 4 more | 88 min |
| Sep 3, 1:53 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Montgomery and 5 more | 3 hr |
| Sep 3, 7:27 PM EDT | Mesoscale Discussion | SPC | Frederick, Howard, Montgomery, Washington | 93 min |
| Sep 4, 2:21 PM EDT | Mesoscale Discussion | SPC | Somerset | 114 min |
| Sep 18, 4:04 AM EDT | Mesoscale Discussion | SPC | Dorchester, Somerset, Wicomico, Worcester | 3 hr |
| Sep 18, 7:44 AM EDT | Mesoscale Discussion | SPC | Calvert, Dorchester, Saint Mary's, Somerset, Talbot, Wicomico and 1 more | 2 hr |
| Sep 18, 12:03 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Worcester | 117 min |
| Sep 18, 4:03 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Wicomico, Worcester | 117 min |
| Sep 18, 6:44 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset | 91 min |
| Sep 26, 3:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Montgomery, Washington | 3 hr |
| Sep 27, 2:22 PM EDT | Mesoscale Discussion | SPC | Frederick, Washington | 113 min |
| Sep 27, 6:52 PM EDT | Mesoscale Discussion | SPC | Allegany, Washington | 53 min |
| Oct 14, 10:45 AM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 7 more | 90 min |
| Oct 27, 12:54 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 96 min |
| Nov 19, 10:57 AM EST | Mesoscale Discussion | SPC | Dorchester, Somerset, Wicomico | 93 min |
| Nov 19, 12:47 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 5 more | 118 min |
| Nov 19, 2:27 PM EST | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Worcester | 93 min |
| Nov 19, 2:56 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Cecil, Harford, Kent and 3 more | 2 hr |
| Nov 19, 3:59 PM EST | Mesoscale Discussion | SPC | Somerset, Worcester | 61 min |
| Dec 5, 12:20 PM EST | Mesoscale Discussion | SPC | Allegany, Washington | 6 hr |
| Dec 14, 6:39 AM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Charles County56
- Montgomery County51
- Saint Mary's County48
- Calvert County48
- Prince George's County48
- Frederick County45
- Anne Arundel County44
- Howard County44
- Washington County44
- Carroll County41
- Dorchester County41
- Baltimore County41
- Allegany County40
- City of Baltimore40
- Somerset County39
- Talbot County39
- Harford County37
- Queen Anne's County36
- Wicomico County35
- Kent County35
- Garrett County34
- Caroline County33
- Cecil County28
- Worcester County27
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20022004
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.