Although Earl has weakened to a Category 3 storm, it's still "a large and powerful hurricane," the National Hurricane Center warns.
At 2 p.m. ET, Earl was about 245 miles south of Cape Hatteras, N.C., and 720 miles south-southwest of Nantucket, Mass. It's moving north at 18 mph and packing 125-mph maximum sustained winds.
Hurricane warnings are in effect for:
• Bogue Inlet, N.C., northeastward to the North Carolina-Virginia border, including the Pamlico and Albemarle sounds.
• Westport, Mass., eastward around Cape Cod to Hull, including Martha's Vineyard and Nantucket Island.
Hurricane watches are in effect for:
• North of the North Carolina-Virginia border to Cape Henlopen, Del.
• Nova Scotia in Canada from Medway Harbour to Digby.
Tropical storm warnings are in effect for:
• Cape Fear to west of Bogue Inlet, N.C.
• North of the North Carolina-Virginia border to Sandy Hook, N.J., including Delaware Bay south of Slaughter Beach and the Chesapeake Bay south of New Point Comfort.
• The eastern part of Long Island, N.Y., from Fire Island Inlet to Port Jefferson Harbor.
• New Haven, Conn., to west of Westport, Mass., including Block Island.
Tropical storm watches are in effect for:
• North of Hull, Mass., to Eastport, Maine.
• The coast of Long Island west of Fire Island Inlet and Port Jefferson Harbor.
• Nova Scotia from Ecum Secum to Medway Harbour and from Digby to Fort Lawrence.
• New Brunswick from just west of Fort Lawrence westward to the U.S.-Canada border.