* WHAT. Visibility one quarter mile or less in dense fog, especially along the immediate coast. Areas of dense fog may expand inland and as well as the south coast into the evening and overnight hours. * WHERE. Eastern Norfolk MA, Suffolk MA, Eastern Essex MA, Barnstable MA, Dukes MA, Eastern Plymouth MA, and Nantucket MA Counties. * WHEN. Until 8 AM EDT Friday. * IMPACTS. Low visibility could make driving conditions hazardous.

* WHAT. Southwest winds 5 to 15 kt and seas 4 to 6 feet. * WHERE. In Massachusetts coastal waters, Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN. Until 7 AM EDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt and seas 3 to 5 feet. * WHERE. Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN. Until 8 PM EDT Friday. * IMPACTS. Conditions will be hazardous to small craft.