In-Fa was a C1 tropical cyclone that formed in the East China Sea in 2021. The storm reached maximum sustained winds of 157 km/h (85 kt) with a minimum central pressure of 950 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 17.1°116.8° to 38.6°135.2°, crossing a range of 22 latitude and 18 longitude.