New England Offshore Weather: Tropical Storm Brings 30-Foot Seas and Dangerous Winds Through Friday

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Boston, Mass. – Dangerous conditions are unfolding offshore from New England to the Mid-Atlantic as a tropical storm intensifies, pushing seas higher than 30 feet in some waters and forcing federal forecasters to warn mariners to stay in port through the end of the week.

According to the National Weather Service’s Ocean Prediction Center, tropical storm warnings remain in effect from Long Island waters south to Cape Fear, North Carolina, including Georges Bank, Hudson Canyon, and offshore waters near Cape Hatteras. Winds are expected to surge between 40 and 55 knots Thursday night into Friday, with seas building to 20 to 37 feet in the open Atlantic.

Mariners off Long Island could see 25-foot seas by Thursday night, while waters south of Georges Bank and east of Cape Cod may experience waves over 29 feet. Offshore North Carolina, seas are projected to top 36 feet as sustained winds near gale to storm force sweep the region.

The storm’s reach spans hundreds of miles, impacting critical fishing and shipping lanes. The Coast Guard and local port authorities are urging commercial and recreational boaters to remain docked until seas subside this weekend. Conditions are expected to gradually improve Saturday into Monday, though swells will linger into early next week.

Warnings remain in effect through Friday, with additional advisories possible as the storm tracks northward.

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