 After becoming a tropical storm on August 30 , the subtropical ridge caused Leslie to turn west @-@ northwestward . By the early on August 31 , the storm featured well @-@ define outflow in all directions and the center of circulation was close to the main area of convection . Intensity estimates around that time indicated sustained wind speeds of 70 mph ( 110 km / h ) . However , intensification halted later on August 31 as wind shear increased over the storm , causing convection to become displaced from the center . Early on September 1 , an eye @-@ like feature appeared on satellite imagery ; however , there was uncertainty as to whether or not the feature was displaced from the low @-@ level center . The storm became increasingly disorganized , with the circulation displaced from the main convective area several hours later . 
