Alert archive / Massachusetts / Mesoscale Discussions
Mesoscale Discussions in Massachusetts, 2009
47 mesoscale discussions in 2009. 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 2009. Tap one for its archive.
- Mesoscale Discussions
- 47
- Busiest month
- July18 mesoscale discussions
- Busiest day
- July 16, 20094 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, 12:10 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more | 4 hr |
| Jan 7, 6:08 AM EST | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 3 hr |
| Jan 7, 11:39 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire, Worcester | 6 hr |
| Jan 10, 7:58 PM EST | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Worcester | 4 hr |
| Jan 28, 7:53 AM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 5 hr |
| Jan 28, 12:24 PM EST | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 4 hr |
| Feb 18, 6:28 PM EST | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 4 hr |
| Mar 1, 9:09 PM EST | Mesoscale Discussion | SPC | Bristol | 4 hr |
| Mar 2, 12:41 AM EST | Mesoscale Discussion | SPC | Bristol, Essex, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 4 hr |
| Mar 2, 6:38 AM EST | Mesoscale Discussion | SPC | Middlesex, Norfolk | 4 hr |
| May 9, 6:47 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 88 min |
| May 24, 11:49 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 116 min |
| Jun 27, 4:38 PM EDT | Mesoscale Discussion | SPC | Bristol, Middlesex, Norfolk, Suffolk | 67 min |
| Jun 30, 2:18 PM EDT | Mesoscale Discussion | SPC | Berkshire | 57 min |
| Jun 30, 4:25 PM EDT | Mesoscale Discussion | SPC | Berkshire | 65 min |
| Jun 30, 6:06 PM EDT | Mesoscale Discussion | SPC | Berkshire | 54 min |
| Jul 1, 12:03 PM EDT | Mesoscale Discussion | SPC | Berkshire, Hampden | 87 min |
| Jul 1, 5:44 PM EDT | Mesoscale Discussion | SPC | Berkshire, Hampshire | 61 min |
| Jul 2, 3:20 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Dukes, Franklin, Hampden, Hampshire and 5 more | 55 min |
| Jul 7, 8:59 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 3 hr |
| Jul 7, 2:00 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 90 min |
| Jul 7, 4:41 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 2 hr |
| Jul 16, 12:04 PM EDT | Mesoscale Discussion | SPC | Berkshire | 86 min |
| Jul 16, 4:55 PM EDT | Mesoscale Discussion | SPC | Berkshire | 65 min |
| Jul 16, 6:16 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 59 min |
| Jul 16, 7:42 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 33 min |
| Jul 26, 1:13 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Franklin, Hampden, Hampshire, Middlesex and 4 more | 2 hr |
| Jul 26, 3:14 PM EDT | Mesoscale Discussion | SPC | Bristol, Hampden, Hampshire, Middlesex, Norfolk, Plymouth and 2 more | 2 hr |
| Jul 26, 6:37 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 113 min |
| Jul 27, 2:20 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Middlesex, Worcester | 55 min |
| Jul 29, 12:22 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 23 min |
| Jul 29, 2:22 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 23 min |
| Jul 29, 5:05 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire | 55 min |
| Jul 31, 2:32 PM EDT | Mesoscale Discussion | SPC | Bristol, Hampden, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 88 min |
| Aug 5, 2:16 PM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 59 min |
| Aug 10, 4:40 PM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Aug 10, 8:15 PM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Aug 19, 1:21 PM EDT | Mesoscale Discussion | SPC | Berkshire | 84 min |
| Aug 21, 10:01 AM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 119 min |
| Aug 21, 1:58 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampden, Hampshire, Worcester | 92 min |
| Aug 21, 5:55 PM EDT | Mesoscale Discussion | SPC | Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 80 min |
| Oct 7, 7:30 AM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Dec 3, 6:28 AM EST | Mesoscale Discussion | SPC | Berkshire, Hampden, Hampshire | 62 min |
| Dec 8, 11:32 PM EST | Mesoscale Discussion | SPC | Berkshire | 6 hr |
| Dec 19, 7:25 PM EST | Mesoscale Discussion | SPC | Bristol, Hampden, Plymouth | 5 hr |
| Dec 20, 12:32 AM EST | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Essex, Hampden, Middlesex and 5 more | 4 hr |
| Dec 26, 12:37 AM EST | Mesoscale Discussion | SPC | Berkshire | 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 archive20082010
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.