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Hurricane Sandy’s Expected Impacts

Here is a compilation of Hurricane Sandy’s expected impacts produced by Early Alert, an emergency management consulting service based in Islamorada, Florida.

The highest storm surges are most likely to occur tonight through Tuesday morning during high tide. Major coastal flooding causing road closures, inundation and damage to structures is expected along the coasts of New Jersey; Long Island, New York; Connecticut and the southern coast of Massachusetts. The highest water levels are likely to occur from northeastern New Jersey through the western Long Island Sound in New York.

Minor to moderate coastal flooding is expected from eastern Massachusetts northward, resulting in flooded basements, road overwash, and some structural damage.

The highest storm surge, around 12 feet, is expected from Sandy Hook, New Jersey through the western Long Island Sound, including Raritan Bay and New York Harbor.

A storm surge of four to eight feet is expected along the coast of central and southern New Jersey, and from eastern Connecticut to the southern shore of Rhode Island.

Hurricane and tropical storm force winds will continue overnight into Tuesday from the Delmarva Peninsula through New Jersey, Long Island and the southern New England coast. Hurricane-force winds are at least 74 mph, while tropical-storm-force winds are from 39 mph to 73 mph.

Hurricane-force winds will extend as far as 175 miles from the storm’s center, while tropical-storm-force winds will extend as far as 485 miles from the storm’s center.

Once Sandy has made landfall, the storm will move slowly through central Pennsylvania Tuesday afternoon and Tuesday night, with maximum winds decreasing from about 70 mph to about 50 mph by Tuesday night.

The storm’s remnants will move through New York state Wednesday night with winds around 40 mph.

Major coastal flooding will worsen with the next high tide cycle this evening from Ocean City, Maryland to the coasts of New Jersey, Connecticut, and Rhode Island and the Long Island Sound and New York Harbor in New York.

Rainfall totals from Sandy will range from six inches to 14 inches, and could be more on the Delmarva Peninsula and in New Jersey.

Estimated rainfall amounts at cities on the East Coast since Friday included: Norfolk, Virginia, 5 to 6 inches; Washington, D.C. 2 to 4 inches; Baltimore, 3 to 5 inches; Dover, Delaware, 6 to 8 inches; Philadelphia, 2 to 3 inches; Atlantic City, 4 to 6 inches.

The remnants of Hurricane Sandy and its effects could linger in the Northeast and Mid-Atlantic states through Thursday.

Willie Drye has been writing about hurricanes and other topics for National Geographic News since 2003. Follow his blog, Drye Goods.