  We study the role of local interstellar turbulence in shaping the large-scale
anisotropy in the arrival directions of TeV-PeV cosmic-rays (CRs) on the sky.
Assuming pitch-angle diffusion of CRs in a magnetic flux tube containing the
Earth, we compute the CR anisotropy for Goldreich-Sridhar turbulence, and for
isotropic fast modes. The narrow deficits in the 400 TeV and 2 PeV data sets of
IceTop can be fitted for some parameters of the turbulence. The data also rule
out a part of the parameter space. The shape of the CR anisotropy may be used
as a local probe of the still poorly known properties of the interstellar
turbulence and of CR transport.
