A dramatic sky

Driving back from scouts tonight I attempted to get a blip of the Reading Festival site now that its only 2 weeks to go. I could see that lots was going on and the main stage was up but they have erected a 6ft high solid fence at all the places where I could get a picture. A man in a high vis jacket would not let me peek through the gates!
So I drove on and came across this striking sky with the edge of the mosque silhouetted against it.