西北偏西WNW (west-northwest)
西北偏北NNW (north-northwest)
東北偏北NNE (north-northeast)
東北偏東ENE ( east-northeast)
you can check information on Hong Kong Observatory
http://www.weather.gov.hk/contente.htm
i hope i have helped you. pls do not delete this answer as i would like to share it. thanks!