Typhoon Goni, known in the Philippines as Typhoon Ineng, was a powerful tropical cyclone that impacted many countries during late August 2015. The fifteenth named storm of the annual typhoon season, Goni was first seen as a weak tropical disturbance from a cloud cluster several nautical miles east southeast of Guam. The system intensified into a tropical depression on August 13, then a named storm by the next day. Similar to the output of Typhoon Soudelor earlier in the month, Goni impacted the Mariana Islands before gathering strength and intensifying into the ninth typhoon.