Clouds are complex phenomena present in the atmospheric flows, with different physical processes influencing them at various scales. Among these processes is turbulent mixing, one of the main contributors to the transport of physical quantities. Turbulence is often, for simplicity, assumed to be homogeneous and isotropic, however numerous observations indicate that it is not always the case. This motivates the studies of deviations from Kolmogorov theory of homogeneous and isotropic turbulence. In this work, time series of air velocity fluctuations collected by airborne measurements of marine cumulus clouds are studied using anisotropy invariant maps. The results show that turbulence in such conditions is often anisotropic, and there are some differences in anisotropy inside clouds and at their edges.