  We explore the large angular scale temperature anisotropies in the cosmic
microwave background due to expanding homogeneous local voids at redshift z~1.
A compensated spherically symmetric homogeneous dust-filled void with radius
\~3*10^2 h^{-1}Mpc, and density contrast ~-0.3 can be observed as a cold spot
with a temperature anisotropy -1*10^{-5} surrounded by a slightly hotter ring.
We find that a pair of these circular cold spots separated by ~50 degree can
account both for the planarity of the octopole and for the alignment between
the quadrupole and the octopole in the cosmic microwave background (CMB)
anisotropy. The cold spot in the Galactic southern hemisphere which is
anomalous at the ~3sigma level can be explained by such a large void at z~1.
The observed north-south asymmetry in the large-angle CMB power can be
attributed to the asymmetric distribution of these local voids between the two
hemispheres. The statistical significance of the low quadrupole is further
reduced in this interpretation of the large angular scale CMB anomalies.
