Alert archive / Massachusetts / Mesoscale Discussions
Mesoscale Discussions in Massachusetts, 2019
46 mesoscale discussions in 2019. 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 2019. Tap one for its archive.
- Mesoscale Discussions
- 46
- Busiest month
- July13 mesoscale discussions
- Busiest day
- July 17, 20193 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 20, 6:42 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 6 hr |
| Jan 20, 1:01 PM EST | Mesoscale Discussion | SPC | Essex, Franklin, Hampshire, Middlesex, Norfolk, Suffolk and 1 more | 4 hr |
| Jan 29, 5:46 PM EST | Mesoscale Discussion | SPC | Berkshire | 4 hr |
| Jan 30, 11:10 AM EST | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 4 hr |
| Feb 12, 10:48 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 4 hr |
| Feb 12, 3:35 PM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 4 hr |
| Feb 20, 10:15 PM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 5 hr |
| Mar 3, 10:44 PM EST | Mesoscale Discussion | SPC | Barnstable, Bristol, Hampden, Norfolk, Plymouth, Worcester | 4 hr |
| Mar 4, 3:16 AM EST | Mesoscale Discussion | SPC | Essex, Middlesex, Norfolk, Suffolk, Worcester | 4 hr |
| May 20, 1:01 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 119 min |
| May 20, 5:16 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 119 min |
| Jun 2, 1:15 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Jun 26, 4:50 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin | 85 min |
| Jul 6, 1:48 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 2 hr |
| Jul 17, 1:03 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 3 more | 2 hr |
| Jul 17, 3:59 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 4 more | 2 hr |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Plymouth | 96 min |
| Jul 20, 6:24 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 96 min |
| Jul 20, 9:03 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 57 min |
| Jul 20, 9:53 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 67 min |
| Jul 22, 8:51 PM EDT | Mesoscale Discussion | SPC | Bristol, Norfolk, Plymouth | 84 min |
| Jul 28, 4:56 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Jul 30, 4:22 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin | 113 min |
| Jul 30, 6:32 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 88 min |
| Jul 31, 12:39 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 4 more | 66 min |
| Jul 31, 4:19 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 6 more | 56 min |
| Aug 3, 1:02 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 2 hr |
| Aug 7, 1:02 PM EDT | Mesoscale Discussion | SPC | Barnstable, Berkshire, Bristol, Dukes, Franklin, Hampden and 6 more | 88 min |
| Aug 7, 3:57 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 93 min |
| Aug 7, 6:56 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 64 min |
| Aug 17, 6:22 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 2 hr |
| Aug 18, 6:11 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Aug 19, 1:38 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 67 min |
| Aug 21, 11:31 AM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 119 min |
| Aug 21, 3:55 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 95 min |
| Aug 21, 6:20 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Dukes, Essex, Franklin, Hampden and 6 more | 115 min |
| Sep 2, 3:58 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more | 3 hr |
| Sep 4, 11:19 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 116 min |
| Sep 4, 3:27 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 93 min |
| Sep 26, 3:40 PM EDT | Mesoscale Discussion | SPC | Bristol, Norfolk, Plymouth, Suffolk | 2 hr |
| Oct 16, 8:52 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Plymouth | 83 min |
| Nov 1, 12:50 AM EDT | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 85 min |
| Dec 1, 7:05 PM EST | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 4 more | 5 hr |
| Dec 3, 4:51 AM EST | Mesoscale Discussion | SPC | Bristol, Essex, Middlesex, Norfolk, Suffolk | 2 hr |
| Dec 17, 11:06 AM EST | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 5 hr |
| Dec 29, 7:28 PM EST | Mesoscale Discussion | SPC | Franklin | 4 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 archive20182020
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.