A monsoon trough formed 800 miles west of Hawaii. The storm organized, and became Tropical Depression 01W, or Tropical Depression Ai. Ai became disorganized, and PAGASA downgraded it to a tropical low. The low continued moving to the Philippines, without intensification. However, this trend did not last long. The bands of the low deepened, and the low was a tropical storm and was given the name Nari. Nari intensified quickly, prompting the Philippines to evacuate. When Nari became a severe tropical storm, JMA thought of the possibility of Nari surviving the trip and making it towards Vietnam. Nari made landfall in Northern Luzon with winds of 70 mph, right before becoming a typhoon. The storm grazed the Philippines, soon making it to the South China Sea and turning northeast. Before becomi