"Storms that form in November, whether they develop in the Caribbean or over the western Atlantic, usually track to the northeast toward the open waters of the western and central Atlantic", the blog noted.
The storm does not pose threat to Florida, U.S. If the forecast holds, Oscar would be the 8th Atlantic hurricane of 2018.
Maximum sustained winds are near 105 miles per hour (165 km/h) with higher gusts.
Currently, Oscar is located more than 1,800 miles east of Jacksonville and is moving toward the west-northwest near 12 mph.
Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km).
"Environmental conditions appear conducive for further development and this system will likely become a tropical or subtropical cyclone later today or tonight while it moves generally northward over the central Atlantic".
The hurricane center expects Oscar to turn to the northwest and then north, which will keep it away from land.