The nor'easter is aimed at three states.

NEW YORK — A nor'easter is strengthening off the East Coast, and the stretch from New Jersey to Massachusetts is forecast to take the worst of it. The Washington Post said the impacts run from Friday night through Monday morning, with at least moderate coastal flooding in parts of New York City and across Long Island, especially on the high tides late Friday and early Saturday. Massachusetts is looking at significant beach erosion.

In the city, rain is forecast to start by early Saturday and last into Monday, with as much as 3 inches. Gusts of 40 to 50 miles an hour will push it sideways. The high tide to watch in New York is 7:46 p.m. Friday, then 8:10 a.m. Saturday. On Long Island, the Post said the storm could bring up to 5 inches of rain, damaging wind, and large waves. The Times, citing the National Weather Service, put the heaviest rain risk on Cape Cod, Rhode Island, and eastern Long Island.

In New York, this storm will be notable for its duration.

Joe Pollina, a meteorologist in the New York office, said eastern Long Island gets the brunt, and that the city could still see 1 to 3 inches. The States desk files the coast, not a national weather roundup.