A rare December disturbance in the Atlantic might turn into a subtropical or tropical storm this week, forecasters said.
The system, described as a large area of low pressure, was pumping out showers and thunderstorms Tuesday morning over the central subtropical Atlantic, about 800 miles northeast of the northern Leeward Islands, according to the National Hurricane Center.
Forecasters say conditions are “marginally conducive for development,” enough for the system to turn into a subtropical or tropical storm in the next few days. The hurricane center is giving it a medium 50% chance of formation in the next two to five days.