An analysis for the kinematical vertical motions has been carried out by using O’Brien’s (1970) special adjustment technique. A composite case, including four cases of winter time polar air outbreaks, was used for present study. Detailed three-dimensional vertical velocity field together with the radar reports are presented and discussed. Results show that an area of maximum vertical motion usually located at different position in relation to the surface center in contrast to [the results in different individual case studies, which did not use polar air outbreak cases, made by some other researchers.