As of 5 p.m. Thursday, the National Hurricane Center was reporting maximum sustained winds of 60 m.p.h. with occasionally higher gusts. The storm was moving at about 18 m.p.h. with a gradual turn to the west forecast over the next 24 hours.
Dorian is forecast to gain strength over the next 48 hours as it moves out of the Atlantic and into the warmer Caribbean waters. Tropical storm winds now extend out 60 miles from the storm's center.
At this time, there are no official coastal watches or warnings in effect.
The current National Weather Service 3-day forecast has the storm approaching the northeast coast of Puerto Rico by Sunday afternoon and wind strengthening to 70 m.p.h.
Meanwhile, meteorologists are also keeping an eye on a smaller Tropical Storm Flossie in the Pacific. Flossie currently has maximum sustained winds of 45 m.p.h. and moving at about 18 m.p.h. The storm is centered about 1,000 miles west southwest of the southern tip of Baja California.