Now that you say that.... I don't think I own a truly 'heavy' coat.... not like you would have anyway.
Back to what I mentioned before - 'shirt jackets'... that's my choice 99% of the time. No chance one of those would work in YOUR weather... but here... I love them. Like I said... I'd rather be a little cold than feeling bulky..... UNLESS, of course, I was in YOUR weather in which case they don't make a coat big enough, thick enough, for me. I'd have to have a coat with a built-in pellet stove to survive your weather. - JamesJM