* WHAT. For the High Surf Advisory, large breaking waves of 7 to 11 feet in the surf zone. For the Coastal Flood Advisory, up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (2.7 to 13.2 feet Mean Lower Low Water). * WHERE. Eastern Essex MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN. For the High Surf Advisory, until 8 PM EDT Monday. For the Coastal Flood Advisory, until 6 PM EDT this evening. * IMPACTS. Most roads remain passable. Flooding up to one foot deep affects coastal roads on the North Shore from Salem to Gloucester and Newburyport. Rough surf will cause flooding on some coastal roads around the time of high tide due to splashover. 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. Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (12.4 to 12.5 feet Mean Lower Low Water). * WHERE. Suffolk MA and Eastern Norfolk MA Counties. * WHEN. Until 6 PM EDT this evening. * IMPACTS. Shallow pockets of flooding less than one foot deep affects the lowest lying areas along the coast, including Morrissey Boulevard in Boston.

* WHAT. For the High Surf Advisory, large breaking waves of 7 to 11 feet in the surf zone. For the Coastal Flood Advisory, up to one foot of inundation above ground level in low-lying areas near shorelines and tidal waterways (2.7 to 13.2 feet Mean Lower Low Water). * WHERE. Eastern Essex MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN. For the High Surf Advisory, until 8 PM EDT Monday. For the Coastal Flood Advisory, until 6 PM EDT this evening. * IMPACTS. Most roads remain passable. Flooding up to one foot deep affects coastal roads on the North Shore from Salem to Gloucester and Newburyport. Rough surf will cause flooding on some coastal roads around the time of high tide due to splashover. 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. Large breaking waves of 5 to 9 feet in the surf zone. * WHERE. Washington, Southern Bristol MA, and Newport RI Counties. * WHEN. Until 8 PM EDT Monday. * IMPACTS. Dangerous swimming and surfing conditions and localized beach erosion.