Dujuan was a TS tropical cyclone that formed in the Philippine Sea in 2003. The storm reached maximum sustained winds of 148 km/h (80 kt) with a minimum central pressure of 950 hPa. Tracking across the Philippine Seain the Western Pacific basin (, it potentially affected the Philippines, Taiwan and Japan. The storm traveled from approximately 15.9°109.7° to 22.9°139.0°, crossing a range of 7 latitude and 29 longitude.