Whilst this depression moves at about the same speed as the warm air, the cold air front in time pushes the warm air mass upwards from the surface.
Ngexesha oku kuhla koxinzelelo lomoya kuhamba ngesantya esifanayo nesomoya oshushu, iingqimba yomoya obandayo ityhala ingqimba yomoya oshushu phezulu ukusuka kumphandle.