Alert archive / Massachusetts / Mesoscale Discussions / 2015

Mesoscale Discussions in Massachusetts, May 2015

10 mesoscale discussions in May 2015. 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 2015. Tap one for its archive.

Mesoscale Discussions
10
Busiest day
May 27, 20154 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
May 12, 2:38 PM EDTMesoscale DiscussionSPCBristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more2 hr
May 19, 7:38 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire2 hr
May 27, 11:50 AM EDTMesoscale DiscussionSPCBerkshire85 min
May 27, 2:59 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire2 hr
May 27, 4:49 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire86 min
May 27, 7:21 PM EDTMesoscale DiscussionSPCHampden, Hampshire, Worcester54 min
May 28, 11:16 AM EDTMesoscale DiscussionSPCBerkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 1 more89 min
May 28, 11:30 AM EDTMesoscale DiscussionSPCBerkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 1 more60 min
May 28, 3:08 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester97 min
May 28, 4:26 PM EDTMesoscale DiscussionSPCFranklin, Hampden, Hampshire, Middlesex, Worcester64 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 archive20142016

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.