Dense Fog Advisory issued August 15 at 3:25AM EDT until August 15 at 10:00AM EDT by NWS

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... * Location...Nantucket, Marthas Vineyard and Cape Cod. * Visibilities...One quarter mile or less at times. * Timing...Dense fog tonight with conditions improving 8 am to 11 am Tuesday.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2uJTUbp