Alert archive / Maryland / Mesoscale Discussions
Mesoscale Discussions in Maryland, 2016
76 mesoscale discussions 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Mesoscale Discussions
- 76
- Busiest month
- July17 mesoscale discussions
- Busiest day
- January 23, 20165 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 22, 12:34 PM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Charles, Dorchester, Frederick and 8 more | 5 hr |
| Jan 22, 4:42 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Prince George's, Saint Mary's | 6 hr |
| Jan 22, 6:47 PM EST | Mesoscale Discussion | SPC | Garrett | 5 hr |
| Jan 22, 9:56 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 5 hr |
| Jan 23, 4:20 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 9 more | 5 hr |
| Jan 23, 8:51 AM EST | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 3 more | 4 hr |
| Jan 23, 12:44 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 8 more | 6 hr |
| Jan 23, 6:40 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 4 hr |
| Feb 15, 9:52 AM EST | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Wicomico | 4 hr |
| Feb 15, 1:46 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 5 hr |
| Feb 15, 8:29 PM EST | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Howard, Montgomery, Washington | 5 hr |
| Feb 24, 1:18 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Prince George's, Saint Mary's | 117 min |
| Feb 24, 3:06 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 54 min |
| Feb 24, 4:46 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 11 more | 89 min |
| Feb 24, 6:40 PM EST | Mesoscale Discussion | SPC | Charles, Saint Mary's | 2 hr |
| Apr 1, 1:46 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 4 more | 119 min |
| Apr 7, 11:36 AM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Dorchester, Kent, Queen Anne's, Somerset and 3 more | 114 min |
| Apr 26, 1:19 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 3 more | 86 min |
| Apr 26, 6:46 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Kent, Queen Anne's, Talbot | 59 min |
| May 2, 6:34 PM EDT | Mesoscale Discussion | SPC | Charles | 56 min |
| May 3, 3:48 PM EDT | Mesoscale Discussion | SPC | Charles | 117 min |
| Jun 3, 3:02 PM EDT | Mesoscale Discussion | SPC | Charles, Frederick, Howard, Montgomery, Prince George's, Saint Mary's | 2 hr |
| Jun 4, 1:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Washington | 117 min |
| Jun 5, 1:14 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more | 91 min |
| Jun 5, 4:57 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Kent and 3 more | 93 min |
| Jun 16, 11:27 AM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Frederick, Garrett, Montgomery, Washington | 63 min |
| Jun 16, 1:08 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Carroll, Charles, Frederick and 7 more | 97 min |
| Jun 16, 4:20 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Carroll, Charles, Frederick and 6 more | 55 min |
| Jun 16, 6:54 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 96 min |
| Jun 16, 9:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Charles, Prince George's | 54 min |
| Jun 21, 12:00 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more | 90 min |
| Jun 21, 3:34 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Somerset and 1 more | 86 min |
| Jun 21, 6:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more | 90 min |
| Jun 24, 12:57 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 13 more | 63 min |
| Jun 28, 3:49 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 3 more | 56 min |
| Jun 28, 7:16 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 9 more | 59 min |
| Jun 28, 9:39 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Saint Mary's | 66 min |
| Jul 1, 12:51 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Harford | 114 min |
| Jul 1, 5:43 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 8 more | 92 min |
| Jul 18, 11:40 AM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Harford | 95 min |
| Jul 18, 3:09 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 66 min |
| Jul 18, 6:22 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 113 min |
| Jul 19, 11:14 PM EDT | Mesoscale Discussion | SPC | Charles, Prince George's | 91 min |
| Jul 23, 2:34 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 2 hr |
| Jul 25, 12:41 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Washington | 64 min |
| Jul 25, 3:05 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 12 more | 115 min |
| Jul 25, 5:02 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 88 min |
| Jul 25, 7:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 14 more | 84 min |
| Jul 28, 12:58 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 2 hr |
| Jul 28, 4:10 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 95 min |
| Jul 28, 6:52 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 6 more | 83 min |
| Jul 28, 10:46 PM EDT | Mesoscale Discussion | SPC | Somerset, Worcester | 89 min |
| Jul 30, 12:11 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 64 min |
| Jul 31, 3:34 PM EDT | Mesoscale Discussion | SPC | Carroll, Charles, Frederick, Howard, Montgomery, Prince George's | 116 min |
| Aug 1, 2:55 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 8 more | 95 min |
| Aug 6, 12:54 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Kent and 2 more | 3 hr |
| Aug 6, 1:46 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Prince George's, Saint Mary's, Talbot | 2 hr |
| Aug 15, 1:58 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Howard, Montgomery and 2 more | 92 min |
| Aug 16, 1:40 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 2 more | 2 hr |
| Aug 16, 4:55 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Cecil, Harford, Howard, Kent and 3 more | 95 min |
| Aug 16, 6:40 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 2 hr |
| Aug 17, 1:25 PM EDT | Mesoscale Discussion | SPC | Garrett | 95 min |
| Aug 17, 4:26 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Charles and 13 more | 64 min |
| Aug 17, 9:46 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 89 min |
| Aug 21, 1:31 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 2 more | 119 min |
| Aug 21, 4:15 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Dorchester, Kent, Queen Anne's and 5 more | 90 min |
| Sep 7, 3:06 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Charles, Frederick, Garrett, Howard and 4 more | 2 hr |
| Sep 26, 1:58 PM EDT | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Sep 28, 4:41 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Talbot | 2 hr |
| Sep 28, 7:02 PM EDT | Mesoscale Discussion | SPC | Calvert, Saint Mary's, Talbot | 88 min |
| Sep 28, 9:26 PM EDT | Mesoscale Discussion | SPC | Calvert, Saint Mary's, Talbot | 64 min |
| Oct 20, 2:28 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 3 hr |
| Oct 20, 6:58 PM EDT | Mesoscale Discussion | SPC | Garrett | 92 min |
| Oct 30, 3:55 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Harford, Washington | 2 hr |
| Dec 17, 3:08 AM EST | Mesoscale Discussion | SPC | Allegany, Washington | 4 hr |
| Dec 17, 4:21 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Charles County43
- Prince George's County43
- Montgomery County40
- Howard County39
- Calvert County37
- Frederick County37
- Carroll County37
- Baltimore County36
- Anne Arundel County35
- City of Baltimore35
- Saint Mary's County33
- Talbot County33
- Cecil County33
- Harford County33
- Kent County32
- Queen Anne's County29
- Caroline County27
- Washington County26
- Dorchester County21
- Allegany County17
- Garrett County16
- Somerset County16
- Wicomico County15
- Worcester County9
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. Warning verification from the Mesonet's Cow. Rebuilt daily.