Alert archive / Massachusetts / Dense Fog Advisories
Dense Fog Advisories in Massachusetts, 2018
40 dense fog advisories in 2018. 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 dense fog advisories reaches back to 2005.
Dense Fog Advisories by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Dense Fog Advisories
- 40
- Busiest month
- May8 dense fog advisories
- Busiest day
- February 20, 20184 dense fog advisories
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 11, 10:40 PM EST | Dense Fog Advisory | BOX | Franklin, Hampden, Hampshire, Middlesex, Worcester | 10 hr |
| Jan 12, 4:22 PM EST | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 13 hr |
| Jan 22, 1:11 PM EST | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more | 22 hr |
| Feb 10, 8:19 PM EST | Dense Fog Advisory | BOX | Essex, Franklin, Hampden, Hampshire, Middlesex, Worcester | 13 hr |
| Feb 11, 6:07 PM EST | Dense Fog Advisory | BOX | Dukes, Nantucket | 13 hr |
| Feb 11, 8:51 PM EST | Dense Fog Advisory | ALY | Berkshire | 3 hr |
| Feb 20, 2:15 AM EST | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 7 hr |
| Feb 20, 9:01 AM EST | Dense Fog Advisory | BOX | Dukes, Nantucket | 119 min |
| Feb 20, 11:09 AM EST | Dense Fog Advisory | BOX | Dukes, Nantucket | 3 hr |
| Feb 20, 3:53 PM EST | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 27 hr |
| Mar 30, 2:07 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more | 8 hr |
| Apr 3, 7:10 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 21 hr |
| Apr 11, 2:23 AM EDT | Dense Fog Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Suffolk | 6 hr |
| Apr 25, 7:21 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 14 hr |
| May 8, 1:56 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more | 8 hr |
| May 8, 3:36 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 18 hr |
| May 9, 3:50 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more | 12 hr |
| May 10, 8:23 PM EDT | Dense Fog Advisory | BOX | Nantucket | 5 hr |
| May 17, 9:48 PM EDT | Dense Fog Advisory | BOX | Nantucket | 8 hr |
| May 19, 7:27 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 7 hr |
| May 29, 9:38 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 8 hr |
| May 31, 2:23 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 9 hr |
| Jun 1, 3:03 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 19 hr |
| Jul 3, 4:04 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 5 hr |
| Jul 3, 9:06 AM EDT | Dense Fog Advisory | BOX | Nantucket | 114 min |
| Aug 5, 4:00 AM EDT | Dense Fog Advisory | BOX | Barnstable, Essex, Norfolk, Plymouth, Suffolk | 5 hr |
| Aug 12, 11:07 AM EDT | Dense Fog Advisory | BOX | Norfolk, Plymouth, Suffolk | 3 hr |
| Aug 13, 3:24 AM EDT | Dense Fog Advisory | BOX | Essex, Norfolk, Plymouth | 7 hr |
| Aug 14, 3:47 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth and 1 more | 5 hr |
| Aug 25, 4:21 AM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 3 hr |
| Sep 11, 9:04 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 12 hr |
| Sep 14, 3:14 AM EDT | Dense Fog Advisory | BOX | Essex, Middlesex | 4 hr |
| Sep 14, 8:13 PM EDT | Dense Fog Advisory | BOX | Essex, Middlesex, Norfolk, Suffolk | 12 hr |
| Sep 16, 4:04 AM EDT | Dense Fog Advisory | BOX | Bristol, Dukes, Essex, Franklin, Hampden, Hampshire and 3 more | 4 hr |
| Oct 10, 7:04 PM EDT | Dense Fog Advisory | BOX | Nantucket | 8 hr |
| Nov 26, 3:16 AM EST | Dense Fog Advisory | BOX | Bristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 2 more | 7 hr |
| Nov 26, 3:39 AM EST | Dense Fog Advisory | ALY | Berkshire | 6 hr |
| Dec 2, 3:37 PM EST | Dense Fog Advisory | BOX | Barnstable, Dukes, Essex, Franklin, Hampden, Hampshire and 5 more | 17 hr |
| Dec 2, 3:47 PM EST | Dense Fog Advisory | ALY | Berkshire | 16 hr |
| Dec 28, 10:06 PM EST | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 4 more | 8 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 archive20172019
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.