The datasets were created by assimilating observations from the Met Office network of C band radars into the Met Office variable-resolution convection permitting model (UKV) using version 8.2 of the unified model. The assimilation scheme is a limited-area version of the Met Office 3D variational assimilation scheme that uses an incremental approach. We note that four datasets are provided to correspond with four different experiments. Further details of the observation, model, data assimilation and four experimental cases are given in Waller et al. 2016.