Tropical Storm Roslyn forms off Mexico’s south Pacific coast

MEXICO CITY (AP) — Tropical Storm Roslyn has formed off Mexico’s southern Pacific coast and forecasters expect it will strengthen to a hurricane before hitting land somewhere between the resorts of Puerto Vallarta and Mazatlan over the weekend. The U.S. National Hurricane Center says that Roslyn had winds of about 45 mph Thursday evening and was centered about 245 miles (390 kilometers) south-southeast of the port of Manzanillo. The storm was moving west at 7 mph, but atmospheric conditions are likely to steer Roslyn on a more northerly course in coming days.