Sepat was a TS tropical cyclone that formed in the East China Sea in 2013. The storm reached maximum sustained winds of 74 km/h (40 kt) with a minimum central pressure of 990 hPa. Tracking across the East China Seain the Western Pacific basin (, it potentially affected Japan, Korea, Taiwan and eastern China. The storm traveled from approximately 26.2°141.2° to 46.1°151.5°, crossing a range of 20 latitude and 10 longitude.