A full moon and strong winds sent ocean waves surging into coastal communities causing flooding late Monday night and early Tuesday morning.
As high tide approached around midnight for many cities and towns, rising water began to breach seawalls.
At around 10:30 p.m., floodwaters were already pushing onto Lighthouse Road and 7th Avenue in Scituate, and a section of Morrissey Boulevard in Dorchester was closed due to flooding, according to a preliminary storm report from the National Weather Service posted at 12:21 a.m.
Water broke through a hole in a seawall in Weymouth, as parts of Fort Point Road and Fore River Avenue there were flooded around 11:30 p.m., the weather service reported.
A block of Sea Street in Quincy was flooded, and Commercial Street in Salem was under 21 inches of water shortly before midnight.
Dexter Avenue in Sandwich and docks at Sandwich Marina were reported under water around the same time, the weather service reported.
Earlier Monday, the National Weather Service had issued coastal flood warnings for several counties, including Barnstable, Essex, Nantucket, Norfolk, Plymouth, and Suffolk, effective between 10 p.m. Monday and 5 a.m. Tuesday.