Hagåtña, Guam
On September 11, a tropical depression formed approximately south of Hagåtña, Guam. On becoming a tropical storm, it was named "Malakas". By September 13, Malakas had improved in its organization and became a severe tropical storm thereafter. At the same time, Malakas had entered the Philippine area of Responsibility, with PAGASA assigning the local name "Gener". Despite hindrance by the outflow of nearby Typhoon Meranti, Malakas intensified into a typhoon.