Beachgoers can expect a moderate risk for rip currents along Long Island's South Shore, the National Weather Service said Monday.

Boaters could get some morning showers across the eastern two-thirds of coastal waters "as a disturbance associated with the weak low pressure well off the eastern seaboard moves through," the service's Upton office said.

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Chances for showers and thunderstorms increase for coastal waters late Monday and into the nighttime hours as a cold front approaches from the west.

Winds and waves should remain below small-craft advisory levels through Tuesday with the lack of a strong pressure gradient.