The NHC is also tracking tropical depression Nadine, which is expected to bring heavy rain to southern Mexico.

Oscar is packing maximum sustained winds of 80 miles per hour, with stronger gusts in some areas. The storm's center is located approximately 150 miles east-northeast of Guantanamo, Cuba. The storm was heading west at 12 mph and was expected to reach Guantanamo or Holguin, Cuba, on Sunday afternoon at hurricane strength.