Alert archive / Maryland / Mesoscale Discussions / 2011
Mesoscale Discussions in Maryland, September 2011
6 mesoscale discussions in September 2011. 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 September 2011. Tap one for its archive.
- Mesoscale Discussions
- 6
- Busiest day
- September 8, 20112 mesoscale discussions
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Sep 4, 3:15 PM EDT | Mesoscale Discussion | SPC | Garrett | 60 min |
| Sep 7, 10:06 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 114 min |
| Sep 8, 6:21 PM EDT | Mesoscale Discussion | SPC | Charles, Montgomery | 114 min |
| Sep 11, 6:38 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more | 97 min |
| Sep 14, 3:22 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 3 more | 53 min |
| Sep 28, 4:45 PM EDT | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Kent, City of Baltimore | 60 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Garrett County3
- Charles County3
- Montgomery County3
- Baltimore County3
- Harford County3
- Anne Arundel County2
- Calvert County2
- Prince George's County2
- Saint Mary's County2
- Allegany County2
- Carroll County2
- Cecil County2
- Frederick County2
- Howard County2
- Kent County2
- Washington County2
- City of Baltimore2
- Caroline County1
- Dorchester County1
- Queen Anne's County1
- Somerset County1
- Talbot County1
- Wicomico County1
- Worcester County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.