Late on August 10, the JMA downgraded Genevieve to a severe tropical storm about 670 mi (1,080 km) west-northwest of Midway Atoll, and the JTWC downgraded it to a tropical storm early on the next day. Dry air, cool ocean temperatures, and weakening link to tropical moisture caused deep convection to nearly completely dissipate. This process was hastened by the disintegration of the TUTT cell which had helped to increase equatorward outflow. Under the combination of many unfavorable