Tropical Storm Rosa likely to be major hurricane soon, forecasters say

Tropical Storm Rosa, which formed off the Pacific coast Tuesday, is expected to strengthen rapidly and become a hurricane Wednesday and a major hurricane Thursday. But the National Hurricane Center, in Miami, says Rosa is likely to stay far offshore.As of 5 a.m. EDT, Rosa was packing maximum sustained winds of 65 mph and was some 470 miles west-southwest of Manzanillo, Mexico, the NHC said in an advisory early Wednesday. The storm was moving west-northwest at about 10 mph, with tropical storm-fo