Best mid-level lapse rates (and hence lightning potential) will be found from Wales - Midlands - East Anglia / Lincolnshire, though some uncertainty as to whether a weak feature in the morning / early afternoon could bring more cloud and some dynamic precipitation to southern parts of Britain for a time, which might have a knock-on effect to any convection for the afternoon/early evening. Given strong DLS, any heavy showers will be capable of strong, gusty winds and perhaps some small hail.

While instability will weaken from the west later in the afternoon and overnight, deep instability will return to western Scotland later in the night.