Washington, Aug 23 (DPA) Hurricane Bill, the first major Atlantic storm of the season, churned up the US East Coast late Saturday and was within reach of Martha's Vineyard, where the US first family plans to spend their vacation.

With the worst of the storm expected to pass by the island within the next 24 hours, there were no changes in US President Barack Obama's plans to spend the week at a large waterfront property on the prestigious vacation island.

Former president Bill Clinton and Secretary of State Hillary Rodham Clinton spent several of their summer vacations there while Bill was president.

The island is also home to an upscale vacation community for African Americans, who have included moviemaker Spike Lee and Harvard professor Henry Louis Gates Jr, a friend of Obama's who made headlines after he was arrested in his own home for disorderly conduct in July.

Hurricane Bill was downgraded to a category one on the Saffir-Simpson scale by the National Hurricane Centre after it swept across Bermuda and approached the North American land mass with winds of 140 km/hr.

Coastal states from Florida to Maine battened down their hatches in preparation for high winds, flooding and heavy rainfall.