 A frontal trough moved eastward off the southeastern United States on September 30 , becoming stationary north of Haiti . The trough developed an area of disturbed weather that interacted with an upper @-@ level low pressure area , resulting in the development of a subtropical depression on October 7 . Upon formation , the system consisted of a very broad subtropical low , as well as a poorly defined surface circulation . As the subtropical depression drifted westward , it became further organized . By midday on October 8 , an Air Force reconnaissance aircraft flight indicated that the subtropical depression intensified and acquired enough tropical characteristics to be considered a tropical storm . The National Hurricane Center named the storm Josephine . 
