Minor to moderate coastal flooding in possible as Hurricane Sandy arrives, with a storm surge of 3-5 feet, according to the National Weather Service. It issued a coastal flood watch for Monday.

The weather service issued the watch at 7:10 p.m. on Saturday. In addition to Monday, the weather service said the watch runs through Tuesday afternoon for all areas along the coast.

The high tide at midday on Monday (11:32 a.m. in Danvers) is when the worst flooding is expected.

Vulnerable roads along the water and basements are expected to be the most impacted.

The coastal flood watch was issued because there is a potential for moderate coastal flooding.