Tropical storm conditions are anticipated for the Turks and Caicos Islands and the southeast Bahamas, with dangerous surf and rip currents forecast for the US East Coast later this week.
Dare County, North Carolina, has declared an emergency and ordered an evacuation of Hatteras Island on the Outer Banks due to expected heavy surf and high winds.
Erin is projected to remain a large, major hurricane for several days, with scientists linking the rapid intensification of such storms in the Atlantic to climate change.