During the evening, a sharp upper trough will swing northwards towards southern Ireland and SW England, while a second tongue of high Theta-W advects northwards - the extent to which these two features engage is a little uncertain, but could provide the focus for some heavy convective rainfall that migrates north across Britain and Ireland through the evening and night hours. Strong PVA and divergence aloft will result in a rapidly-deepening surface low approaching southern Ireland during the late evening, and this may be the focus for some strongly-forced convection close to the wrap-around occlusion, followed by squally showers at the end of the night. Some uncertainty as to the extent of lightning (if any) but have tentatively introduced a low-end SLGT into S / SW Ireland.