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That looks insane. Looks like the classic supercell structure you'd see every week in the USA.

It was very impressive. I asked the experts here what it was as I don't know much about cloud formations and thought it might be a lenticular cloud. Still a rare sight here in the UK 

9 hours ago, Ealdous said:

It was very impressive. I asked the experts here what it was as I don't know much about cloud formations and thought it might be a lenticular cloud. Still a rare sight here in the UK 

If that's a lenticular then that's by far the biggest I have ever seen in my lifetime. Great capture!

It's not a lenticular. It's more likely to be a shelf cloud on a cumulonimbus, or potentially even an lp supercell ? 

LP supercell was the answer I got from those that know more than me ?