Powerful hurricane could be headed to U.S. East Coast

MIAMI (AP) — The U.S. East Coast could be hit with a powerful hurricane next week as Tropical Storm Florence continues to strengthen as it moves toward the mainland, forecasters said Saturday.Florence is expected to become a major hurricane by Monday, the National Hurricane Center said, adding that "a significant phase of intensification" is expected late Saturday.The Miami-based weather center said although the storm could intensify to a Category 4 hurricane by midweek, its path was still