Thanks Martin. You've been very helpful and Sat24's animations are certainly my main source for checking on current conditions (I also find the differing swirls fascinating to watch)!
BTW Metcheck has been down for several weeks recently until this week - not sure why.
Going back to my original comment on how data is interpreted, the prize this evening has to go to ITV's Teletext for my area which informed me of the following:
"
A largely cloudy but mostly dry night, with little in the way of cloud."
You can't beat a foolproof forecast like that, covering all of the angles!