Erin, the first hurricane to develop over the Atlantic this year, became post-tropical on Friday afternoon, the National Hurricane Center said.

Forecasters are warning swimmers early Friday that U.S. East Coast beaches will remain dangerous for the coming days, as Hurricane Erin continues its northeasterly flight from the United States.

Forecasters warned the storm, now a post-tropical cyclone, could continue to cause dangerous conditions on East Coast beaches for a few days.