Improved spectral measurements of the OH Meinel Δv=3 night airglow emissions have revealed unexpectedly intense transitions from high rotational levels. The example selected for this communication involves the previously unreported P(N''=13) transitions in the OH M (7,4) band. Under the extant conditions, the column emission rates associated with these new features exceeded by factors ~104 those expected on the basis of the assumption of rotational-kinetic equilibrium for the v¿=7 rotational manifold. We present the key observations and discuss some of the implications. ¿ American Geophysical Union 1989