Hurricane Erin has weakened to a Category 1 storm after lashing North Carolina's Outer Banks with rough waves and coastal flooding, and bringing a threat of dangerous waves and potentially deadly rip currents to the East Coast.

Hurricane Erin flooded streets in New York and New Jersey as massive waves crashed onto beaches. More Videos. Atlantic 'roaring' as Hurricane Erin sweeps past Florida

New York and North Carolina have begun reopening beaches that had been closed due to Hurricane Erin. The storm sent strong winds and dangerous waves across the U.S.

Storm surge flooding and tropical storm conditions are causing significant problems for NC's Outer Banks-especially for beachfront properties.

Powerful waves from Hurricane Erin hit the North Carolina coastline as officials warn to stay away from beaches. See video.