Hong-sok (風速), he̍k-chiá kóng hong ê liû-sok, sī khong-khì siong-tùi tē-kiû piáu-bīn ê kò͘-tēng chi̍t tiám ê ūn-tōng sok-lu̍t. Tī ji̍t-siông seng-oa̍h tiong, lán khah-chia̍p kā khong-khì ê soá-tāng ti̍t-chiap hō-chò hong.
