I really don’t understand anyone who takes anything but a grain of salt with any forecast beyond 6 hrs … Saturday may as well be mid-November in terms of what we know will happen, and even in terms of what the supercomputers modelling the models know what will happen.
That said - it’s good to look into ‘close FI’ (as I’m now calling it) as a guide to what may be in store - but seriously don’t expect any of it to be even marginally correct.
Hot, anomalous bodies of water are proving to be one of mankind’s biggest headaches at the moment - in terms of forecasting. Thunderstorms are complicated beasts at the best of times, but I can’t even begin to imagine the complex interplay between polar, stateside and European airmasses and all those oceanic thermal influences that will play out over the coming days to produce whatever the weather will do by Saturday.
Things do look good at the moment from an IMBY perspective, but it will change many times before we get there - and the weather isn’t fair, so the likelihood is a warm evening with the odd shower and nothing more
(that’s my forecast and I’m sticking with it lol)