Alert archive / Massachusetts / Mesoscale Discussions / 2021

Mesoscale Discussions in Massachusetts, June 2021

7 mesoscale discussions in June 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 June 2021. Tap one for its archive.

Mesoscale Discussions
7
Busiest day
June 30, 20213 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
Jun 9, 3:19 PM EDTMesoscale DiscussionSPCBarnstable, Berkshire, Bristol, Dukes, Hampden, Hampshire and 5 more116 min
Jun 15, 2:38 PM EDTMesoscale DiscussionSPCBristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more2 hr
Jun 21, 9:23 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire, Worcester97 min
Jun 29, 7:17 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more88 min
Jun 30, 2:16 PM EDTMesoscale DiscussionSPCBerkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more119 min
Jun 30, 4:48 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more87 min
Jun 30, 6:58 PM EDTMesoscale DiscussionSPCBristol, Norfolk, Plymouth92 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 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. Rebuilt daily.