* WHAT...Northeast winds 30 to 40 kt with gusts up to 55 kt and seas 15 to 20 feet.
* WHERE...In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. In Atlantic coastal waters, Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM.
* WHEN...Until 2 AM EDT Sunday.
* IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility.