September 18th – I have no idea about this, as I’m no meteorologist and I know even less about cloud formations, but I can’t recall ever seeing stripy cloud like this before.

It persisted for some time around 5pm over east Staffordshire, and was quite beautiful – when most pronounced, it had a very shard ‘edge’ to it which was fascinating in itself.

Can anyone tell me what this is all about, please? How rare is it? Does it have a name?