Alert archive / Maryland / Mesoscale Discussions / 2003

Mesoscale Discussions in Maryland, September 2003

12 mesoscale discussions in September 2003. 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 2003. Tap one for its archive.

Mesoscale Discussions
12
Busiest day
September 18, 20035 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.

IssuedProductOfficeCountiesLasted
Sep 1, 7:17 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 4 more88 min
Sep 3, 1:53 PM EDTMesoscale DiscussionSPCAnne Arundel, Calvert, Caroline, Charles, Dorchester, Montgomery and 5 more3 hr
Sep 3, 7:27 PM EDTMesoscale DiscussionSPCFrederick, Howard, Montgomery, Washington93 min
Sep 4, 2:21 PM EDTMesoscale DiscussionSPCSomerset114 min
Sep 18, 4:04 AM EDTMesoscale DiscussionSPCDorchester, Somerset, Wicomico, Worcester3 hr
Sep 18, 7:44 AM EDTMesoscale DiscussionSPCCalvert, Dorchester, Saint Mary's, Somerset, Talbot, Wicomico and 1 more2 hr
Sep 18, 12:03 PM EDTMesoscale DiscussionSPCSaint Mary's, Somerset, Worcester117 min
Sep 18, 4:03 PM EDTMesoscale DiscussionSPCSaint Mary's, Somerset, Wicomico, Worcester117 min
Sep 18, 6:44 PM EDTMesoscale DiscussionSPCCalvert, Charles, Dorchester, Saint Mary's, Somerset91 min
Sep 26, 3:10 PM EDTMesoscale DiscussionSPCAllegany, Frederick, Montgomery, Washington3 hr
Sep 27, 2:22 PM EDTMesoscale DiscussionSPCFrederick, Washington113 min
Sep 27, 6:52 PM EDTMesoscale DiscussionSPCAllegany, Washington53 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20022004

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.