Alert archive / Maryland / Mesoscale Discussions / 2021
Mesoscale Discussions in Maryland, September 2021
9 mesoscale discussions in September 2021. 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 2021. Tap one for its archive.
- Mesoscale Discussions
- 9
- Busiest day
- September 1, 20215 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 1, 12:19 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Montgomery, Prince George's | 86 min |
| Sep 1, 4:01 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 4 more | 119 min |
| Sep 1, 11:03 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 2 hr |
| Sep 1, 1:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more | 118 min |
| Sep 1, 3:09 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Dorchester, Harford, Kent, Queen Anne's and 2 more | 3 hr |
| Sep 8, 10:42 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Harford, Howard, Montgomery and 1 more | 2 hr |
| Sep 22, 6:14 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Dorchester and 9 more | 2 hr |
| Sep 23, 3:13 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 5 hr |
| Sep 23, 10:30 AM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Wicomico | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cecil County8
- Harford County7
- Anne Arundel County6
- Montgomery County6
- Baltimore County6
- Kent County6
- Queen Anne's County6
- City of Baltimore6
- Calvert County5
- Prince George's County5
- Carroll County5
- Howard County5
- Caroline County5
- Talbot County5
- Wicomico County5
- Charles County4
- Dorchester County4
- Saint Mary's County4
- Somerset County3
- Worcester County1
- Frederick County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.