Alert archive / Massachusetts / Mesoscale Discussions
Mesoscale Discussions in Massachusetts, 2020
48 mesoscale discussions in 2020. 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 2020. Tap one for its archive.
- Mesoscale Discussions
- 48
- Busiest month
- August14 mesoscale discussions
- Busiest day
- August 4, 20204 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 |
|---|---|---|---|---|
| Mar 23, 3:26 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex | 6 hr |
| Apr 13, 2:42 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 93 min |
| May 11, 12:56 PM EDT | Mesoscale Discussion | SPC | Essex, Middlesex, Norfolk, Suffolk, Worcester | 3 hr |
| May 15, 2:59 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 91 min |
| May 15, 4:58 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 92 min |
| May 15, 6:59 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 2 hr |
| May 15, 9:09 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Hampden, Middlesex, Norfolk, Plymouth and 2 more | 66 min |
| May 29, 8:01 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 119 min |
| Jun 6, 10:46 AM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 119 min |
| Jun 6, 2:20 PM EDT | Mesoscale Discussion | SPC | Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 3 more | 85 min |
| Jun 28, 12:37 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 4 more | 113 min |
| Jun 28, 4:08 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 3 more | 2 hr |
| Jun 28, 7:20 PM EDT | Mesoscale Discussion | SPC | Bristol, Hampden, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 55 min |
| Jun 29, 2:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Dukes, Franklin, Hampden, Hampshire and 2 more | 117 min |
| Jul 2, 6:30 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 2 hr |
| Jul 5, 2:20 PM EDT | Mesoscale Discussion | SPC | Middlesex | 115 min |
| Jul 8, 4:01 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 89 min |
| Jul 13, 12:54 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 6 more | 96 min |
| Jul 14, 12:11 PM EDT | Mesoscale Discussion | SPC | Bristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more | 2 hr |
| Jul 22, 1:45 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 2 hr |
| Jul 22, 7:01 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 119 min |
| Jul 23, 12:05 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 115 min |
| Jul 23, 4:28 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Norfolk, Suffolk | 2 hr |
| Jul 23, 6:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 57 min |
| Jul 30, 1:20 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 115 min |
| Aug 2, 2:00 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 2 hr |
| Aug 2, 6:45 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 2 hr |
| Aug 4, 6:45 AM EDT | Mesoscale Discussion | SPC | Hampden | 3 hr |
| Aug 4, 11:34 AM EDT | Mesoscale Discussion | SPC | Bristol, Dukes, Essex, Franklin, Hampden, Hampshire and 5 more | 86 min |
| Aug 4, 3:05 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 85 min |
| Aug 4, 5:44 PM EDT | Mesoscale Discussion | SPC | Essex, Middlesex, Suffolk | 2 hr |
| Aug 22, 1:18 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 87 min |
| Aug 23, 2:08 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 2 hr |
| Aug 24, 2:00 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 2 hr |
| Aug 25, 2:09 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 96 min |
| Aug 25, 6:11 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 6 more | 2 hr |
| Aug 29, 1:36 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 114 min |
| Aug 29, 6:45 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Aug 29, 9:48 PM EDT | Mesoscale Discussion | SPC | Middlesex, Norfolk, Suffolk, Worcester | 117 min |
| Sep 30, 5:09 AM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 96 min |
| Oct 7, 5:20 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 4 more | 85 min |
| Nov 15, 3:33 PM EST | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Nov 15, 7:01 PM EST | Mesoscale Discussion | SPC | Bristol, Norfolk, Plymouth, Worcester | 59 min |
| Nov 15, 9:37 PM EST | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin and 7 more | 113 min |
| Nov 30, 7:13 PM EST | Mesoscale Discussion | SPC | Bristol, Dukes, Hampden, Norfolk, Plymouth, Suffolk and 1 more | 2 hr |
| Dec 5, 7:52 AM EST | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Worcester | 4 hr |
| Dec 16, 6:48 PM EST | Mesoscale Discussion | SPC | Berkshire, Hampden | 5 hr |
| Dec 16, 10:12 PM EST | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 6 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 archive20192021
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.