As a result , the tropical storm warning was upgraded to a hurricane warning .
As it moved through the northeastern Caribbean Sea the storm steadily intensified , and by late on September 14 Jeanne was forecast to move across the island as a minimal hurricane .
The tropical storm warning was upgraded to a hurricane warning .
As it moved through the northeastern Caribbean Sea the storm steadily intensified , and by late on September 14 Jeanne was forecast to move across the island as a minimal hurricane .