  We study the effect of turbulent flow on the droplet growth in a cloud during
the condensational phase. Using the air parcel model, we describe analytically
how the distribution of droplets over sizes evolves at the different stages of
parcel movement. We show that turbulent random walk superimposed on an
accelerated ascent of the parcel make the relative width of droplet
distribution to grow initially as $t^{1/2}$ and then decay as $t^{-3/2}$.
