* WHAT. Northeast winds 15 to 20 kt with a few gusts up to 30 kt and waves around 3 feet. * WHERE. In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN. Until 4 PM EDT this afternoon. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 3 feet. * WHERE. In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN. Until 10 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Large breaking waves of 6 to 10 feet in the surf zone. * WHERE. Washington, Southern Bristol MA, and Newport RI Counties. * WHEN. Until 7 PM EDT this evening. * IMPACTS. Dangerous swimming and surfing conditions and localized beach erosion.

* WHAT. For this morning's Coastal Flood Advisory, up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (1.6 to 12.1 feet Mean Lower Low Water). For the High Surf Advisory, large breaking waves of 8 to 12 feet in the surf zone. For this afternoon's Coastal Flood Advisory, up to one foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (3.5 to 13.6 feet Mean Lower Low Water). For Sunday afternoon's Coastal Flood Advisory, up to one foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (3.6 to 13.3 feet Mean Lower Low Water). * WHERE. Eastern Essex MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN. For the first Coastal Flood Advisory, until 5 AM EDT early this morning. For the High Surf Advisory, until 7 PM EDT this evening. For the second Coastal Flood Advisory, from 11 AM this morning to 5 PM EDT this afternoon. For the third Coastal Flood Advisory, from noon to 6 PM EDT Sunday. * IMPACTS. Roads remain passable. Shallow pockets of flooding less than one foot deep affect more vulnerable coastal roads along the North Shore from Salem and Gloucester to Newburyport. Rough surf will likely cause some splashover onto coastal roads around the time of high tide. Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep. Dangerous swimming and surfing conditions and localized beach erosion.

* WHAT. For this morning's Coastal Flood Advisory, up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (1.6 to 12.1 feet Mean Lower Low Water). For the High Surf Advisory, large breaking waves of 8 to 12 feet in the surf zone. For this afternoon's Coastal Flood Advisory, up to one foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (3.5 to 13.6 feet Mean Lower Low Water). For Sunday afternoon's Coastal Flood Advisory, up to one foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (3.6 to 13.3 feet Mean Lower Low Water). * WHERE. Eastern Essex MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN. For the first Coastal Flood Advisory, until 5 AM EDT early this morning. For the High Surf Advisory, until 7 PM EDT this evening. For the second Coastal Flood Advisory, from 11 AM this morning to 5 PM EDT this afternoon. For the third Coastal Flood Advisory, from noon to 6 PM EDT Sunday. * IMPACTS. Roads remain passable. Shallow pockets of flooding less than one foot deep affect more vulnerable coastal roads along the North Shore from Salem and Gloucester to Newburyport. Rough surf will likely cause some splashover onto coastal roads around the time of high tide. Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep. Dangerous swimming and surfing conditions and localized beach erosion.

* WHAT. For this morning's Coastal Flood Advisory, less than 1 foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (11.4 to 11.6 feet Mean Lower Low Water). For this afternoon's Coastal Flood Advisory, up to one half foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (12.6 to 12.8 feet Mean Lower Low Water). For Sunday afternoon's Coastal Flood Advisory, up to one half foot of inundation above ground level expected in low- lying areas near shorelines and tidal waterways (12.3 to 12.6 feet Mean Lower Low Water). * WHERE. Suffolk MA and Eastern Norfolk MA Counties. * WHEN. For the first Coastal Flood Advisory, until 5 AM EDT early this morning. For the second Coastal Flood Advisory, from 11 AM this morning to 5 PM EDT this afternoon. For the third Coastal Flood Advisory, from noon to 6 PM EDT Sunday. * IMPACTS. Shallow pockets of flooding less than one foot deep affects the lowest lying areas along the coast, including Morrissey Boulevard in Boston.