Omais was a TS tropical cyclone that formed in the Philippine Sea in 2004. The storm reached maximum sustained winds of 93 km/h (50 kt) with a minimum central pressure of 985 hPa. Tracking across the Philippine Seain the Western Pacific basin (, it potentially affected the Philippines, Taiwan and Japan. The storm traveled from approximately 5.2°133.0° to 19.6°147.5°, crossing a range of 14 latitude and 14 longitude.