* WHAT...Northeast winds 30 to 40 kt with gusts up to 60 kt and seas 20 to 25 feet.
* WHERE...In Massachusetts coastal waters, Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Atlantic coastal waters, Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM.
* WHEN...Until 8 PM EDT Saturday.
* IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility.