Alert archive / Massachusetts / Mesoscale Discussions
Mesoscale Discussions in Massachusetts, 2021
59 mesoscale discussions in 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 2021. Tap one for its archive.
- Mesoscale Discussions
- 59
- Busiest month
- July15 mesoscale discussions
- Busiest day
- May 26, 20213 mesoscale discussions
Over time
By month
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 |
|---|---|---|---|---|
| Feb 1, 1:43 PM EST | Mesoscale Discussion | SPC | Bristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 3 more | 6 hr |
| Feb 1, 7:27 PM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 6 hr |
| Feb 7, 11:40 AM EST | Mesoscale Discussion | SPC | Bristol, Norfolk, Plymouth | 4 hr |
| Feb 16, 2:51 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 4 hr |
| Feb 18, 9:47 AM EST | Mesoscale Discussion | SPC | Bristol, Dukes, Nantucket | 4 hr |
| Apr 21, 11:49 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Apr 21, 2:56 PM EDT | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Middlesex, Worcester | 94 min |
| May 23, 1:20 PM EDT | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Franklin, Hampden and 7 more | 115 min |
| May 26, 3:21 PM EDT | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Middlesex, Worcester | 54 min |
| May 26, 4:41 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 64 min |
| May 26, 6:07 PM EDT | Mesoscale Discussion | SPC | Hampden, Hampshire, Middlesex, Worcester | 113 min |
| Jun 9, 3:19 PM EDT | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Hampden, Hampshire and 5 more | 116 min |
| Jun 15, 2:38 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 2 hr |
| Jun 21, 9:23 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 97 min |
| Jun 29, 7:17 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 88 min |
| Jun 30, 2:16 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 119 min |
| Jun 30, 4:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 87 min |
| Jun 30, 6:58 PM EDT | Mesoscale Discussion | SPC | Bristol, Norfolk, Plymouth | 92 min |
| Jul 6, 12:33 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Norfolk, Worcester | 2 hr |
| Jul 6, 4:23 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 4 more | 97 min |
| Jul 7, 1:50 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more | 115 min |
| Jul 7, 4:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 87 min |
| Jul 7, 7:11 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 3 more | 2 hr |
| Jul 8, 12:00 AM EDT | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 60 min |
| Jul 17, 12:00 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 3 hr |
| Jul 17, 4:38 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 97 min |
| Jul 20, 7:12 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin | 2 hr |
| Jul 20, 10:01 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 59 min |
| Jul 21, 2:39 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 2 hr |
| Jul 23, 5:47 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 58 min |
| Jul 27, 2:01 PM EDT | Mesoscale Discussion | SPC | Berkshire | 89 min |
| Jul 27, 4:36 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 84 min |
| Jul 27, 6:09 PM EDT | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin and 7 more | 96 min |
| Aug 11, 4:57 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 93 min |
| Aug 12, 3:50 PM EDT | Mesoscale Discussion | SPC | Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 55 min |
| Aug 12, 6:44 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 61 min |
| Aug 19, 10:49 AM EDT | Mesoscale Discussion | SPC | Bristol, Middlesex, Norfolk, Plymouth, Suffolk | 86 min |
| Sep 1, 11:20 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 85 min |
| Sep 2, 3:38 AM EDT | Mesoscale Discussion | SPC | Barnstable, Dukes, Nantucket | 97 min |
| Sep 8, 9:25 PM EDT | Mesoscale Discussion | SPC | Berkshire | 95 min |
| Sep 9, 4:12 AM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 3 hr |
| Sep 15, 10:33 AM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Sep 15, 3:04 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 2 more | 116 min |
| Sep 15, 4:38 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 67 min |
| Sep 15, 8:11 PM EDT | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Oct 16, 12:09 PM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Oct 16, 2:55 PM EDT | Mesoscale Discussion | SPC | Berkshire | 95 min |
| Oct 16, 5:39 PM EDT | Mesoscale Discussion | SPC | Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 2 hr |
| Oct 16, 11:21 PM EDT | Mesoscale Discussion | SPC | Bristol, Plymouth | 54 min |
| Nov 12, 3:01 PM EST | Mesoscale Discussion | SPC | Barnstable, Dukes | 89 min |
| Nov 13, 12:07 PM EST | Mesoscale Discussion | SPC | Hampden, Worcester | 113 min |
| Nov 13, 2:06 PM EST | Mesoscale Discussion | SPC | Hampden, Worcester | 84 min |
| Nov 13, 4:09 PM EST | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Norfolk, Plymouth, Suffolk | 2 hr |
| Nov 26, 4:42 PM EST | Mesoscale Discussion | SPC | Berkshire | 3 hr |
| Dec 11, 9:49 PM EST | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 116 min |
| Dec 18, 10:52 AM EST | Mesoscale Discussion | SPC | Hampden | 3 hr |
| Dec 18, 2:54 PM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 5 hr |
| Dec 22, 4:26 AM EST | Mesoscale Discussion | SPC | Hampden, Middlesex, Worcester | 4 hr |
| Dec 25, 5:44 AM EST | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
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.