Of greater interest are developments over NW Germany, the Netherlands and out across the North Sea from late afternoon and through the evening and overnight hours. Clusters of very active thunderstorms are likely to develop here in a very unstable environment (>1,000 J/kg CAPE) with substantially veering wind profiles (northeasterly at the surface round to southwesterly in the upper troposhere). While this activity is unlikely to affect the UK directly, the warm advection regime will result in increasing instability spreading out across the southern North Sea above a cool boundary layer. As such, given a developing cut-off upper low lingering over eastern England through Sunday evening/night engaging with the western flank of this instability plume, there may be scope for scattered elevated showers to develop close to the east coast of England, although it is likely most lightning activity will remain offshore.