Oscar is the 15th named storm of the six-month Atlantic hurricane season that ends November 30. The storm is moving west at 12 miles per hour. In a forecast advisory, they said Oscar could become a hurricane as its track begins to curve toward the North Atlantic.
There are no coastal watches or warnings in effect, according to the agency.
The storm had top sustained winds of 60 miles per hour (95 kph).
The storm does not pose threat to Florida, U.S.More news: Steve Pearce of Boston Red Sox named 2018 World Series MVP
More news: Microsoft to keep working with military despite ethics concerns
More news: Nor’easter to Hit U.S. East Coast This Weekend
The weather service said TS Oscars closest point of approach inside three days was expected to be 487 miles to the east south east of the island about 5am on Tuesday. The storm is continuing to transition from a hybrid storm to a full-fledged tropical system on Saturday night. Hurricane season runs through November 30.
During the afternoon on Thursday, shower activity associated with the low pressure system became more concentrated. Additional strengthening is expected, and Oscar could become a hurricane after transitioning to a tropical storm later this weekend or early next week.
The storm also hit Georgia, the Carolinas, and Virginia.