Typhoon Nanmadol, known in the Philippines as Super Typhoon Josie, was a powerful tropical cyclone that impacted Japan. The fourteenth named storm, seventh typhoon, and second super typhoon of the 2022 Pacific typhoon season and the most intense tropical cyclone worldwide in 2022, Nanmadol originated from a disturbance to the east of Iwo Jima which the Joint Typhoon Warning Center (JTWC) designated as a tropical depression on September 12. Later that same day, upon attaining tropical storm strength, it was named Nanmadol by the Japan Meteorological Agency (JMA).

The 2022 Pacific typhoon season was the third consecutive season to have below average tropical cyclone activity, with twenty-five named storms forming. Of the tropical storms, ten became typhoons, and three would intensify into super typhoons. The season saw near-average activity by named storm count, although many of the storms were weak and short-lived, particularly towards the end of the season. This low activity was caused by an unusually strong La Niña that had persisted from 2020. The season's first named storm, Malakas, developed on April 6, while the last named storm, Pakhar, dissipated on December 12. The season's first typhoon, Malakas, reached typhoon status on April 12. The season ran throughout 2022, though most tropical cyclones typically develop between May and October. Tropical storms Megi and Nalgae were responsible for more than half of the casualties, while typhoons Hinnamnor and Nanmadol both caused $1 billion in damages.