Cold air aloft and surface heating will help to generate 200-300 J/kg of CAPE by the afternoon and scattered showers and a few thunderstorms will be possible. This is especially the case across the E Mids/E Anglia/SE Eng by mid-afternoon. Forecast profiles highlight some drier air above 500mb, and this could limit the depth of convection and thus limit lightning potential. 

Both low-level and deep-layer wind shear remains light, however with the colder air aloft and dry air in the mid-levels there is the potential for a few funnels or even a brief land-spout tornado as any stronger convection develops in the afternoon (again most likely across E Eng/E Anglia).