It was the seventh named storm of the 2007 Atlantic hurricane season . Gabrielle formed as a subtropical cyclone on September 8 about 385 miles ( 625 km ) southeast of Cape Lookout , North Carolina . The seventh named storm of the 2007 Atlantic hurricane season , Gabrielle developed as a subtropical cyclone on September 8 about 385 miles ( 625 km ) southeast of Cape Lookout , North Carolina .