Sorry, but wasn't really sure where else to post this. This was a huge storm on 22/8/15, not taken by me but someone who lives on the same estate as me. I have been told the white cloud on the leading edge was a gust front? If anyone can confirm either way. This was the best storm I have ever seen, even better than the one we had in 1995. I believe this was as close to a supercell as we get here in the UK. If this is in the wrong place, please place in proper forum.