Gaston to become a hurricane by Wednesday.
At 5pm, Gaston was about 765 miles west of the southernmost Cabo Verde Islands, latitude 14.2 north, longitude 35.8 west. Gaston is moving toward the west-northwest near 18mph. A gradual turn toward the northwest is forecast during the next couple of days with a decrease in forward speed.
Maximum sustained winds remain near 65mph with higher gusts. Additional strengthening is expected, and Gaston should become a hurricane either later tonight or early Wednesday.