Alert archive / Massachusetts / Mesoscale Discussions / 2021
Mesoscale Discussions in Massachusetts, July 2021
15 mesoscale discussions in July 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 July 2021. Tap one for its archive.
- Mesoscale Discussions
- 15
- Busiest day
- July 7, 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
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. Warning verification from the Mesonet's Cow. Rebuilt daily.