Alert archive / Maryland / Mesoscale Discussions
Mesoscale Discussions in Maryland, 2015
76 mesoscale discussions in 2015. 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 2015. Tap one for its archive.
- Mesoscale Discussions
- 76
- Busiest month
- June30 mesoscale discussions
- Busiest day
- July 9, 20156 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 11, 8:50 PM EST | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 6 hr |
| Feb 14, 1:33 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 4 hr |
| Feb 16, 10:33 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 7 more | 4 hr |
| Feb 21, 6:24 PM EST | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 2 more | 4 hr |
| Feb 26, 12:56 AM EST | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Wicomico, Worcester | 6 hr |
| Mar 1, 8:43 AM EST | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Saint Mary's, Somerset and 2 more | 4 hr |
| Mar 1, 1:57 PM EST | Mesoscale Discussion | SPC | Caroline, Cecil, Harford, Kent, Queen Anne's | 5 hr |
| Mar 4, 11:00 PM EST | Mesoscale Discussion | SPC | Garrett | 6 hr |
| Mar 5, 7:58 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 8 more | 5 hr |
| Mar 5, 11:55 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 6 hr |
| Mar 26, 6:12 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 2 more | 2 hr |
| Apr 10, 2:36 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 54 min |
| Apr 20, 1:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 6 more | 3 hr |
| Apr 20, 5:01 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 12 more | 119 min |
| Apr 20, 9:17 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 7 more | 88 min |
| Apr 22, 12:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 118 min |
| May 6, 3:21 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Charles, Frederick, Garrett, Howard and 3 more | 114 min |
| May 11, 7:26 PM EDT | Mesoscale Discussion | SPC | Garrett | 64 min |
| May 16, 1:35 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 9 more | 2 hr |
| May 27, 12:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 8 more | 54 min |
| May 27, 2:59 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more | 2 hr |
| May 31, 12:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Washington | 114 min |
| Jun 8, 1:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 2 hr |
| Jun 8, 1:31 PM EDT | Mesoscale Discussion | SPC | Washington | 119 min |
| Jun 8, 4:46 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 3 more | 59 min |
| Jun 8, 7:07 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 4 more | 53 min |
| Jun 12, 2:03 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, Washington | 87 min |
| Jun 12, 6:53 PM EDT | Mesoscale Discussion | SPC | Garrett | 97 min |
| Jun 12, 8:40 PM EDT | Mesoscale Discussion | SPC | Garrett | 35 min |
| Jun 14, 2:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 84 min |
| Jun 14, 7:08 PM EDT | Mesoscale Discussion | SPC | Cecil, Kent, Queen Anne's | 52 min |
| Jun 15, 2:02 AM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, City of Baltimore | 118 min |
| Jun 16, 12:15 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 2 hr |
| Jun 18, 5:35 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Dorchester, Prince George's, Saint Mary's and 2 more | 55 min |
| Jun 20, 1:36 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 5 more | 114 min |
| Jun 20, 6:24 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 96 min |
| Jun 20, 8:37 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Dorchester, Somerset, Wicomico, Worcester | 53 min |
| Jun 20, 10:14 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Queen Anne's, Saint Mary's, Somerset and 3 more | 61 min |
| Jun 23, 10:28 AM EDT | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Jun 23, 1:45 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 3 hr |
| Jun 23, 3:25 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 95 min |
| Jun 23, 5:47 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 88 min |
| Jun 23, 7:41 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 94 min |
| Jun 23, 10:32 PM EDT | Mesoscale Discussion | SPC | Somerset, Worcester | 28 min |
| Jun 27, 12:56 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Somerset and 1 more | 3 hr |
| Jun 27, 4:39 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 6 more | 96 min |
| Jun 27, 6:23 PM EDT | Mesoscale Discussion | SPC | Charles, Saint Mary's | 2 hr |
| Jun 30, 12:31 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 6 more | 2 hr |
| Jun 30, 1:38 PM EDT | Mesoscale Discussion | SPC | Charles, Saint Mary's | 3 hr |
| Jun 30, 3:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 117 min |
| Jun 30, 4:15 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 2 hr |
| Jun 30, 7:38 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 67 min |
| Jul 6, 1:01 PM EDT | Mesoscale Discussion | SPC | Carroll, Charles, Frederick, Howard, Montgomery, Prince George's | 2 hr |
| Jul 9, 11:27 AM EDT | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Jul 9, 12:59 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 7 more | 2 hr |
| Jul 9, 3:09 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 10 more | 96 min |
| Jul 9, 4:55 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 5 more | 95 min |
| Jul 9, 6:25 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford | 95 min |
| Jul 9, 7:04 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 6 more | 86 min |
| Jul 14, 3:58 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 62 min |
| Jul 14, 9:26 PM EDT | Mesoscale Discussion | SPC | Howard, Montgomery | 94 min |
| Jul 21, 3:01 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Wicomico | 119 min |
| Aug 4, 3:29 AM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 4 more | 3 hr |
| Aug 4, 3:48 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 9 more | 3 hr |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Harford and 5 more | 3 hr |
| Aug 20, 11:49 AM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more | 2 hr |
| Aug 20, 3:45 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 3 hr |
| Sep 2, 3:35 PM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Frederick, Garrett, Montgomery, Prince George's and 2 more | 85 min |
| Sep 12, 6:33 AM EDT | Mesoscale Discussion | SPC | Saint Mary's | 117 min |
| Sep 12, 10:02 AM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 118 min |
| Sep 12, 2:28 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 2 hr |
| Sep 29, 6:20 PM EDT | Mesoscale Discussion | SPC | Charles, Saint Mary's | 85 min |
| Oct 9, 2:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 57 min |
| Oct 9, 3:11 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford | 2 hr |
| Oct 9, 4:54 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford | 96 min |
| Oct 9, 7:40 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 95 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County33
- Howard County33
- Montgomery County33
- Frederick County32
- Prince George's County31
- Baltimore County31
- Harford County31
- City of Baltimore30
- Charles County29
- Saint Mary's County29
- Cecil County29
- Washington County28
- Anne Arundel County28
- Allegany County25
- Garrett County25
- Kent County24
- Queen Anne's County23
- Somerset County22
- Calvert County21
- Dorchester County21
- Caroline County20
- Talbot County19
- Wicomico County19
- Worcester County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.