Prapiroon was a TS tropical cyclone that formed in the Philippine Sea in 2006. The storm reached maximum sustained winds of 120 km/h (65 kt) with a minimum central pressure of 970 hPa. Tracking across the Philippine Seain the Western Pacific basin (, it potentially affected the Philippines, Taiwan and Japan. The storm traveled from approximately 12.5°106.8° to 24.0°130.0°, crossing a range of 12 latitude and 23 longitude.