Ed,
Many thanks for your comments.
I'd watched the weather for about two weeks but even as I drove down, I had my doubts (dark skies and constant rain can do that to you). It paid off, however, because when I got there I was greeted by wonderful light and amazing skies - there are plenty more shots on the website.
To be honest, with those conditions and a course like Turnberry, it would been difficult not to take a good shot.