* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways (2.9 to 13.0 feet Mean Lower Low Water).
* WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA, Barnstable MA and Dukes MA Counties.
* WHEN...Through late Tuesday night. The high tide cycles tonight, Monday night and Tuesday night are of the most concern.
* IMPACTS...Shallow pockets of flooding less than one foot deep affects the lowest lying areas along the coast, including Morrissey Boulevard in Boston. Most roads remain passable. Flooding up to one foot deep affects coastal roads on the North Shore from Salem to Gloucester and Newburyport.