Merbok was a TS tropical cyclone that formed in the South China Sea in 2017. The storm reached maximum sustained winds of 102 km/h (55 kt) with a minimum central pressure of 985 hPa. Tracking across the South China Seain the Western Pacific basin (, it potentially affected Vietnam, the Philippines, China and Taiwan. The storm traveled from approximately 13.2°114.5° to 24.5°119.4°, crossing a range of 11 latitude and 5 longitude.