Rammasun was a C1 tropical cyclone that formed in the East China Sea in 2002. The storm reached maximum sustained winds of 157 km/h (85 kt) with a minimum central pressure of 945 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 9.6°123.7° to 38.0°139.2°, crossing a range of 28 latitude and 15 longitude.