Alert archive / Maryland / Mesoscale Discussions / 2021
Mesoscale Discussions in Maryland, April 2021
3 mesoscale discussions in April 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 April 2021. Tap one for its archive.
- Mesoscale Discussions
- 3
- Busiest day
- April 11, 20211 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 |
|---|---|---|---|---|
| Apr 11, 4:54 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more | 2 hr |
| Apr 21, 12:22 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 10 more | 113 min |
| Apr 29, 4:52 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Kent, Queen Anne's, Talbot | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County2
- Charles County2
- Harford County2
- Prince George's County2
- City of Baltimore2
- Caroline County2
- Cecil County2
- Kent County2
- Queen Anne's County2
- Talbot County2
- Baltimore County1
- Carroll County1
- Frederick County1
- Howard County1
- Montgomery County1
- Washington County1
- Calvert County1
- Dorchester County1
- Saint Mary's County1
- Somerset County1
- Wicomico County1
- Worcester 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.