No problem Andy, and thanks for the image. If I saw that image I would think it would be a poor night for observing from the abundance of high level cloud from the weak warm front and the suggestions of mid or low level cloud (darker areas). A few gaps may well open up but it wouldn't be a good night all round.
The link is a basic one but I'm sure there's much better information out there.
I think Sat 24 is the best around. Don't trust Metcheck though - in my opinion it's rubbish, I wouldn't even look at their website.
Hope this helps.
