Alert archive / Massachusetts / Middlesex County

Dense Fog Advisories in Middlesex County, Massachusetts

108 dense fog advisories since 1986. 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 since 1986. Tap one for its archive.

Dense Fog Advisories
108
Busiest year
201813 dense fog advisories
Average year
5over 20 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

The latest dense fog advisories

The most recent on file, newest first.

IssuedProductOfficeLasted
Mar 31, 3:07 AM EDTDense Fog AdvisoryBOX7 hr
Mar 19, 7:05 PM EDTDense Fog AdvisoryBOX13 hr
Jan 19, 1:49 AM ESTDense Fog AdvisoryBOX7 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.