sentences:  By midday on September 11, the circulation had become ill-defined and elongated; failing to meet the criteria of a tropical cyclone, the National Hurricane Center declared Gabrielle dissipating well to the south of Nova Scotia.By early the next day, the remnants of Gabrielle were absorbed by an approaching cold front.Upon becoming a subtropical cyclone, the National Hurricane Center issued a tropical storm watch from Edisto Beach, South Carolina to Oregon Inlet in North Carolina, including the Pamlico Sound.