Alert archive / Massachusetts / Mesoscale Discussions
Mesoscale Discussions in Massachusetts, 2017
47 mesoscale discussions in 2017. 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 2017. Tap one for its archive.
- Mesoscale Discussions
- 47
- Busiest month
- June9 mesoscale discussions
- Busiest day
- February 9, 20173 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 |
|---|---|---|---|---|
| Jan 7, 11:27 AM EST | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Norfolk, Plymouth | 4 hr |
| Jan 23, 8:14 PM EST | Mesoscale Discussion | SPC | Franklin | 6 hr |
| Feb 7, 5:44 PM EST | Mesoscale Discussion | SPC | Franklin | 5 hr |
| Feb 9, 4:55 AM EST | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 6 hr |
| Feb 9, 11:05 AM EST | Mesoscale Discussion | SPC | Bristol, Essex, Hampden, Middlesex, Norfolk, Plymouth and 2 more | 4 hr |
| Feb 9, 3:20 PM EST | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Middlesex, Norfolk and 2 more | 6 hr |
| Feb 12, 9:59 AM EST | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 4 more | 5 hr |
| Feb 12, 2:51 PM EST | Mesoscale Discussion | SPC | Essex, Middlesex | 4 hr |
| Feb 25, 4:44 PM EST | Mesoscale Discussion | SPC | Berkshire | 91 min |
| Feb 25, 6:24 PM EST | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 66 min |
| Mar 14, 3:22 AM EDT | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 5 hr |
| Mar 14, 9:04 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 4 hr |
| Mar 14, 1:57 PM EDT | Mesoscale Discussion | SPC | Essex, Middlesex | 5 hr |
| Mar 31, 8:17 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 6 hr |
| Apr 1, 7:20 AM EDT | Mesoscale Discussion | SPC | Essex, Middlesex, Suffolk | 5 hr |
| Apr 6, 3:12 PM EDT | Mesoscale Discussion | SPC | Bristol, Dukes | 63 min |
| May 18, 7:33 PM EDT | Mesoscale Discussion | SPC | Berkshire | 87 min |
| May 31, 12:29 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 61 min |
| May 31, 4:46 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 119 min |
| May 31, 7:34 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 86 min |
| Jun 1, 12:06 PM EDT | Mesoscale Discussion | SPC | Essex, Middlesex, Norfolk, Suffolk | 2 hr |
| Jun 13, 2:25 PM EDT | Mesoscale Discussion | SPC | Bristol, Hampden, Norfolk, Plymouth | 3 hr |
| Jun 19, 10:45 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 3 hr |
| Jun 19, 2:58 PM EDT | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Jun 23, 2:02 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 2 more | 2 hr |
| Jun 27, 12:00 PM EDT | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin and 8 more | 2 hr |
| Jun 30, 12:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin | 2 hr |
| Jun 30, 4:20 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 115 min |
| Jun 30, 7:06 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 54 min |
| Jul 1, 12:32 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 118 min |
| Jul 1, 4:10 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Jul 8, 11:09 AM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 3 hr |
| Jul 12, 12:51 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 114 min |
| Jul 13, 11:09 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Jul 17, 12:14 PM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Jul 17, 6:58 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 62 min |
| Jul 20, 4:33 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 87 min |
| Aug 2, 1:30 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 2 hr |
| Aug 5, 11:36 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 114 min |
| Aug 12, 6:32 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 118 min |
| Aug 22, 5:49 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 116 min |
| Aug 22, 8:04 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 86 min |
| Aug 22, 10:53 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 2 more | 97 min |
| Sep 5, 4:30 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Oct 24, 8:55 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Middlesex, Nantucket, Norfolk and 3 more | 65 min |
| Dec 23, 9:50 AM EST | Mesoscale Discussion | SPC | Franklin, Middlesex, Worcester | 4 hr |
| Dec 25, 4:36 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 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 archive20162018
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.