Mesoscale Discussions in Maryland
2,098 mesoscale discussions since 1986. 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 since 1986. Tap one for its archive.
- Mesoscale Discussions
- 2,098
- Busiest year
- 2011126 mesoscale discussions
- Average year
- 87over 24 years on file
Over time
By year
Mesoscale discussions are counted from 2003.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County963
- Howard County957
- Prince George's County947
- City of Baltimore932
- Charles County931
- Anne Arundel County916
- Baltimore County913
- Kent County876
- Harford County875
- Carroll County868
- Frederick County854
- Cecil County853
- Calvert County834
- Queen Anne's County831
- Saint Mary's County798
- Talbot County793
- Caroline County738
- Washington County721
- Dorchester County678
- Somerset County573
- Wicomico County556
- Allegany County539
- Garrett County516
- Worcester County405
The latest mesoscale discussions
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 1:31 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 119 min |
| Sep 3, 11:56 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Prince George's | 64 min |
| Sep 3, 11:13 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 13 more | 92 min |
| Sep 3, 8:19 PM EDT | Mesoscale Discussion | SPC | Frederick, Washington | 56 min |
| Sep 3, 6:19 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 14 more | 116 min |
| Sep 3, 4:16 PM EDT | Mesoscale Discussion | SPC | Allegany, Washington | 119 min |
| Sep 2, 1:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 6 more | 84 min |
| Sep 2, 11:09 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 7 more | 66 min |
| Sep 1, 9:46 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Wicomico, Worcester | 119 min |
| Sep 1, 6:32 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford | 88 min |
| Sep 1, 3:13 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford, Kent | 2 hr |
| Aug 27, 7:26 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 94 min |
Nearby
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.