The SE of England is still due to have CAPE/LI reach impressive levels overnight:
However, (partially from an IMBY perspective) not all will necessarily generate storms. There appears to be significant capping (though I defer to more knowledgeable members to correct me if I'm not interpreting this correctly!) affecting Kent in particular:
This would seem to tie in with the Estofex Level 2 forecast which notes:
So, as always, some will see impressive storms and some won't. Window-based nowcasting is probably your best bet!