"Some additional weakening is likely while Oscar moves across the mountainous terrain of eastern Cuba, but Oscar is forecast to be a tropical storm when it moves north of Cuba late today and then moves near the southeastern and central Bahamas on Tuesday," the hurricane center said Monday morning.

ORLANDO, Fla. - On Monday evening, Tropical Storm Oscar was over Cuba’s eastern coast, bringing strong winds and rain. Oscar was moving toward the north-northwest near 7 mph and a turn toward the north-northeast was expected overnight, followed by a faster northeastward motion on Tuesday and Wednesday, according to the National Hurricane Center.

Oscar, which the National Hurricane Center characterized as "very small," is the 15th named storm of the hurricane season.