Choi-Wan was a TS tropical cyclone that formed in the East China Sea in 2003. The storm reached maximum sustained winds of 130 km/h (70 kt) with a minimum central pressure of 955 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 17.7°127.4° to 42.2°159.9°, crossing a range of 25 latitude and 32 longitude.