* WHAT...Southwest winds 20 to 30 kt with gusts up 30-34 kt and seas 4 to 6 feet expected.
* WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound.
* WHEN...From 8 PM this evening to 8 PM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.