If the sky looks like this, I'd be scared

[Churchill]

Last week while out driving I saw what's called roll cloud, looked like a horizontal tornado. Something like this;

Linky

Was very weird, came and went twice in 10 minutes.

Hmmm, not the Yanks mucking about at Macrahanish was it?

[Cliphead]

Hmmm, not the Yanks mucking about at Macrahanish was it?

Ooh I could tell you stories about that place

[Churchill]

Ooh I could tell you stories about that place

[BlasterBates]

...but that clearly wasn't a cloud, it was an alien spacecraft, surrounded by force field that resembles a cloud.