Erin, national hurricane center
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Hurricane Erin is forecast to continue growing in size, with hurricane-force winds extending up to 50 miles from its center.
While Erin is expected to take a northward turn in the Atlantic, a new system off the coast of Africa has the National Hurricane Center's attention.
U.S. shores are unlikely to see a direct hit, but a strong offshore hurricane can produce massive and dangerous waves well away from its center.