Tropical Storm Gordon whipped the southern tip of Florida with high winds and rain on Monday, and was expected to have strengthened into a hurricane by the time it makes landfall along the central U.S. Gulf Coast on Tuesday night, the National Hurricane Center (NHC) said. The storm was forecast to come ashore late on Tuesday near the border between Louisiana and Mississippi, and drop as much as 8 inches of rain in some areas of the U.S. South still reeling from hurricanes a year ago. Gordon was generating winds of 50 miles per hour on Monday as it steamed west-northwest at 16 mph, the NHC said. As the storm crossed Florida’s southern tip on Monday morning, offi cials closed the beaches in MiamiDade County and warned of possible street fl ooding. By Monday afternoon the storm had passed over the state. There were no reports of injuries or deaths, or damage to any buildings, said Alberto Moscoso, a spokesman for the Florida Division of Emergency Management.