There has been some very interesting speculation in the last page or so here, but I doubt most of you have much concept of how small the influence of the weather phenomena you're discussing is on a fast jet. I'm sorry to say that your lack of understanding has taken you up a blind alley. Sea breezes, down draughts and inversions can pretty safely be discounted as serious threats to fast jet aeros.
I take your point as I don't have fast jet experience, just 21000 hrs on commercial jets however I am aware that an increase in temperature reduces the thrust and that this aircraft went over the top of the loop at 100kts. If you say this is not a factor I of course accept your experience.