MIAMI (CBSMiami) – Dorian, the fourth named Tropical Storm of the 2013 hurricane season which strengthened slightly overnight, is expected to continue on its track but may make a turn Friday.

The 11:00 p.m. advisory put the center of Dorian located about  1550 miles east of the northern Leeward Islands. The storm’s maximum sustained winds have decreased to 50 mph as it moved toward the west-northwest near 20 mph.

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Dorian is forecast to continue in the same general direction, followed by a gradual turn toward the west over the next couple of days.

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Tropical storm force winds extend 60 miles from the center of the storm.

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There are no watches or warnings in effect for this storm at this time.