Storm has top sustained winds of 70 mph, but could reach 120 mph by the time it hits the Florida Gulf Coast. Tropical Storm Helene is expected to become a hurricane on Wednesday as it nears the coast of Mexico's Yucatan Peninsula, the National Hurricane Center said. After it passes the Yucatan Peninsula, it is expected to rapidly intensify into a major hurricane by late Thursday, when it's expected to come ashore along Florida's Gulf Coast. The National Hurricane Center issued a hurricane warning for an area along the Florida coast from Anclote River to Mexico Beach. Forecasters are suggesting that Florida's Big Bend region will have the worst impacts. "There is a danger of life-threatening storm surge along the entire west coast of the Florida Peninsula and Florida Big Bend," said National Hurricane Center forecaster Jack Beven. "The highest inundation levels are expected along the coast of the Florida Big Bend. Residents in those areas should follow a...