Alert archive / Maryland / Mesoscale Discussions / 2012
Mesoscale Discussions in Maryland, September 2012
18 mesoscale discussions in September 2012. 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 2012. Tap one for its archive.
- Mesoscale Discussions
- 18
- Busiest day
- September 18, 20128 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 5, 2:12 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Kent, Prince George's and 2 more | 63 min |
| Sep 8, 5:00 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 60 min |
| Sep 8, 11:38 AM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Howard, Montgomery and 2 more | 97 min |
| Sep 8, 2:12 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 9 more | 93 min |
| Sep 8, 3:25 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset | 65 min |
| Sep 8, 4:22 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 6 more | 53 min |
| Sep 18, 8:49 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 8 more | 116 min |
| Sep 18, 11:14 AM EDT | Mesoscale Discussion | SPC | Cecil | 91 min |
| Sep 18, 11:19 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 86 min |
| Sep 18, 1:27 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Dorchester and 10 more | 63 min |
| Sep 18, 1:56 PM EDT | Mesoscale Discussion | SPC | Cecil, Harford | 64 min |
| Sep 18, 3:52 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Charles, Dorchester, Howard and 7 more | 113 min |
| Sep 18, 4:21 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil | 114 min |
| Sep 18, 6:15 PM EDT | Mesoscale Discussion | SPC | Somerset, Wicomico, Worcester | 30 min |
| Sep 22, 3:09 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more | 2 hr |
| Sep 27, 3:18 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 2 more | 117 min |
| Sep 27, 6:16 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Frederick, Howard, Montgomery, Prince George's, City of Baltimore | 29 min |
| Sep 27, 8:57 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 1 more | 63 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County11
- Anne Arundel County10
- Howard County10
- Calvert County9
- Charles County9
- Montgomery County9
- City of Baltimore9
- Baltimore County8
- Talbot County7
- Carroll County7
- Frederick County7
- Cecil County7
- Saint Mary's County7
- Caroline County6
- Kent County6
- Queen Anne's County5
- Harford County5
- Somerset County5
- Dorchester County4
- Wicomico County4
- Washington County3
- Worcester County3
- Allegany County2
- Garrett County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.