Hurricane Erin is marching north and is set to bring life-threatening rip currents, destructive waves, coastal flooding and possibly beach erosion to much of the East Coast. The conditions will last through Thursday before improving later on Friday and into Saturday.

Hurricane Erin moves offshore but still threatens East Coast with dangerous surf, rip currents, and tropical winds. Follow Newsweek's live blog.

The National Hurricane Center warned that “life-threatening” surf and rip currents would affect the Bahamas, Bermuda and beaches up and down the East Coast over the next several days. "Beachgoers are cautioned against swimming at most U.S. East Coast beaches due to life-threatening surf and rip currents," the hurricane center said.