* WHAT. Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE. Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN. Until 4 AM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. North winds 15 to 25 kt with gusts up to 30 kt and seas 2 to 4 feet expected. * WHERE. In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound. * WHEN. Until 8 AM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. North winds 10 to 20 kt with gusts up to 30 kt and waves around 2 feet. * WHERE. In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN. Until 4 AM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. North winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet. * WHERE. In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and 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 2 PM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. North winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet. * WHERE. Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN. Until 2 PM EDT Thursday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Sub-freezing temperatures as low as 29 expected. * WHERE. Eastern Norfolk MA, Southeast Middlesex MA, Suffolk MA, Eastern Essex MA, and Eastern Plymouth MA Counties. * WHEN. From 2 AM to 8 AM EDT Thursday. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT. Sub-freezing temperatures as low as 28 expected. * WHERE. Portions of northern Connecticut, southeastern Massachusetts, and northern and southern Rhode Island. * WHEN. From 2 AM to 8 AM EDT Thursday. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.