  $\Lambda$CDM-model predicts an excess of dark halos compared to the
observations. The excess is seen from the estimates of the virialized mass
inside the Local Supercluster and its surroundings. It is shown that account
for cosmological velocity fluctuations in the process of formation of the
population of dark halos it is possible to eliminate this contradiction
remaining within the framework of the $\Lambda$CDM cosmology. Based on the
formalism of Press and Schechter, we suggest a model of formation of dark halo
population which takes into account the kinematic effects in the dark matter.
The model allows a quantitative explanation for the observable deficit of the
virialized mass in the local Universe.
