The National Weather Service is warning that Hurricane Erin will likely strengthen to a Category 4 again after weakening to a Category 3 early Sunday morning.

Hurricane Erin is heading for the United States and so, too, could some massive waves, reaching more than 100 feet in height. The major storm, which is currently a Category 3 hurricane, is weakening ...

Hurricane Erin, which briefly intensified into a Category 5 storm Saturday morning, weakened to a Category 3 by the evening as it underwent an eyewall replacement cycle in the Atlantic, forecasters ...

Forecasters with the U.S. National Hurricane Center (NHC) found that Erin remained a powerful Category 3 major hurricane on Sunday, with maximum sustained winds of 205 km/h at 2:00 p.m. EDT.

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.