HOLT, Fla., Sept. 21, 2018—The National Hurricane Center upgraded formation potential for two of the four systems it is monitoring with its morning update.
The system located about 600 miles southeast of the Cabo Verde Islands just off the coast of Africa is showing signs of organization and the NHC has increased formation possibilities to 60 percent during the next five days.
A slow development into a tropical depression is possible early next week while the system moves west at 15-to-20 mph across the low latitudes of the eastern and central tropical Atlantic.
A non-tropical low pressure system is forecast to develop tonight over the central subtropical Atlantic Ocean midway between Bermuda and the Azores (shown in red above).
This system is expected to develop into a stronger system late this weekend or early next week while it meanders over the central Atlantic, according to the NHC.
Formation through the five-day forecast period has been increased to 70 percent.
Meanwhile, the weak low pressure area located about 600 miles east of the Windward Islands and the low pressure located just southeast of Bermuda, remnants of Florence, haven’t changed much and are not expected to develop during the next five days, according to the NHC.