Alert archive / Massachusetts / Middlesex County / Dense Fog Advisories
Dense Fog Advisories in Middlesex County, Massachusetts, 2021
5 dense fog advisories in 2021. An alert counts here when it covered this county. The archive of dense fog advisories reaches back to 2005.
Middlesex County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Dense Fog Advisories
- 5
- Busiest month
- December2 dense fog advisories
- Busiest day
- July 14, 20211 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 | Lasted |
|---|---|---|---|
| Jul 14, 12:32 AM EDT | Dense Fog Advisory | BOX | 9 hr |
| Sep 17, 8:10 PM EDT | Dense Fog Advisory | BOX | 12 hr |
| Oct 12, 1:11 AM EDT | Dense Fog Advisory | BOX | 8 hr |
| Dec 22, 9:18 AM EST | Dense Fog Advisory | BOX | 5 hr |
| Dec 30, 9:25 PM EST | Dense Fog Advisory | BOX | 13 hr |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.