Storm Signal No.8, also known as Wave No.8 or Typhoon Signal No.8, is a tropical cyclone warning signal for China and Hongkong. It has four directions, namely northeast, southeast, southwest and northwest.

The higher level signal is the No.9 gale or storm enhancement signal, and the lower level signal is the No.3 gale signal. Suihua, a prefecture-level city in Heilongjiang Province, means "Auspicious Anshun" in Manchu. Suihua is located in the central part of Heilongjiang Province, in the Hulan River basin of Songnen Plain, bordering Yichun, the capital of forest in the east, Harbin, the provincial capital in the south, Daqing, the oil city in the west, Heihe in the north, Qiqihar and he cheng in the northwest.