 The hurricane began to turn west because of the strengthening and growing ridge to its north . Increasing outflow <unk> began to form , and the hurricane reached its peak strength of 105 mph ( 170 km / h ) with a well @-@ defined eye at its center of circulation . Genevieve turned northwest on July 16 into an area with strong vertical wind shear and low water temperatures . The hurricane quickly weakened into a tropical storm on July 17 and then into a tropical depression on July 18 . Genevieve dissipated as a tropical cyclone later in the day , reduced to a circulation in the <unk> cloud field . 
