  We construct supersymmetric irregular vertex operators of arbitrary rank,
appearing in the colliding limit of primary fields. We find that the structure
of the supersymmetric irregular vertices differs significantly from the bosonic
case: upon supersymmetrization, the irregular operators are no longer the
eigenstates of positive Virasoro and $W_N$ generators but block-diagonalize
them. We relate the block-diagonal structure of the irregular vertices to
contributions of the Ramond sector to the colliding limit.
