  In a vertex algebraic framework, we present an explicit description of the
twisted Wakimoto realizations of the affine Lie algebras in correspondence with
an arbitrary finite order automorphism and a compatible integral gradation of a
complex simple Lie algebra. This yields generalized free field realizations of
the twisted and untwisted affine Lie algebras in any gradation. The free field
form of the twisted Sugawara formula and examples are also exhibited.
