Alert archive / Maryland / Mesoscale Discussions / 2011
Mesoscale Discussions in Maryland, May 2011
16 mesoscale discussions in May 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 May 2011. Tap one for its archive.
- Mesoscale Discussions
- 16
- Busiest day
- May 18, 20113 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 |
|---|---|---|---|---|
| May 3, 2:27 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Washington | 2 hr |
| May 3, 6:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Washington | 84 min |
| May 15, 1:38 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 8 more | 2 hr |
| May 17, 11:14 AM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Saint Mary's | 2 hr |
| May 17, 6:27 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 9 more | 2 hr |
| May 18, 11:55 AM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Carroll, Charles, Frederick and 6 more | 65 min |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more | 67 min |
| May 18, 6:01 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 15 more | 89 min |
| May 19, 2:17 PM EDT | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Kent | 58 min |
| May 23, 10:33 AM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 4 more | 87 min |
| May 23, 2:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Charles, Frederick, Howard, Montgomery and 1 more | 87 min |
| May 23, 4:40 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more | 95 min |
| May 26, 4:30 PM EDT | Mesoscale Discussion | SPC | Garrett | 60 min |
| May 27, 12:24 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 2 more | 96 min |
| May 27, 3:29 PM EDT | Mesoscale Discussion | SPC | Saint Mary's | 91 min |
| May 27, 6:14 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 7 more | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Washington County11
- Carroll County10
- Frederick County10
- Howard County10
- Baltimore County9
- Prince George's County9
- Montgomery County9
- Charles County8
- City of Baltimore8
- Anne Arundel County7
- Kent County7
- Allegany County6
- Calvert County6
- Saint Mary's County6
- Queen Anne's County5
- Cecil County5
- Harford County5
- Garrett County5
- Caroline County4
- Talbot County4
- Dorchester County3
- Somerset County3
- Wicomico County3
- 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.