Convection quickly weakened as the storm crossed central Hispaniola , and after reaching the Caribbean Sea the system lacked the convection required for the classification of a tropical cyclone ; rainbands well to its northeast had stronger winds , though the center became very disorganized with dry air and strong wind shear . Convection rapidly weakened as the storm crossed central Hispaniola , and upon reaching the Caribbean Sea the system lacked the convection required for the classification of a tropical cyclone ; rainbands well to its northeast maintained stronger winds , though the center became ill-defined with dry air and strong wind shear .