Typhoon Nock-ten, known in the Philippines as Typhoon Nina, was the strongest tropical cyclone ever recorded worldwide on Christmas Day (December 25) in terms of 1-minute sustained winds.[1][2] Forming as a tropical depression southeast of Yap and strengthening into the twenty-sixth tropical storm of the annual typhoon season on December 21, Nock-ten intensified into the thirteenth typhoon of the season on December 23. Soon afterwards, the system underwent explosive intensification and became a Category 5-equivalent super typhoon early on December 25. Nock-ten weakened shortly before making eight landfalls over the Philippines.[3]