Alert archive / Massachusetts / Mesoscale Discussions / 2011

Mesoscale Discussions in Massachusetts, August 2011

13 mesoscale discussions in August 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 August 2011. Tap one for its archive.

Mesoscale Discussions
13
Busiest day
August 21, 20114 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
Aug 1, 12:07 PM EDTMesoscale DiscussionSPCBerkshire53 min
Aug 1, 2:15 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more90 min
Aug 1, 6:18 PM EDTMesoscale DiscussionSPCBerkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 3 more57 min
Aug 2, 10:42 AM EDTMesoscale DiscussionSPCEssex, Middlesex63 min
Aug 2, 2:33 PM EDTMesoscale DiscussionSPCEssex, Middlesex, Suffolk, Worcester57 min
Aug 19, 6:42 PM EDTMesoscale DiscussionSPCBerkshire63 min
Aug 21, 11:54 AM EDTMesoscale DiscussionSPCBerkshire2 hr
Aug 21, 3:05 PM EDTMesoscale DiscussionSPCEssex, Middlesex, Norfolk, Suffolk, Worcester55 min
Aug 21, 4:34 PM EDTMesoscale DiscussionSPCBerkshire116 min
Aug 21, 7:12 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire63 min
Aug 28, 12:30 AM EDTMesoscale DiscussionSPCBristol, Dukes, Hampden, Norfolk, Plymouth, Worcester90 min
Aug 28, 4:01 AM EDTMesoscale DiscussionSPCDukes89 min
Aug 28, 8:09 AM EDTMesoscale DiscussionSPCBarnstable, Bristol, Dukes, Nantucket, Plymouth2 hr

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 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.