* WHAT...West winds 20 to 30 kt with gusts up to 40 kt and seas 6 to 11 feet possible.
* WHERE...Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM and Ocean Waters from Provincetown to Nantucket from 20 to 60 NM.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.