Ominous
I took this shot on June 27, while flying over the Pyrenees. I don’t know what such a cloud formation indicates, but instinctively I didn’t fancy being underneath it.
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I took this shot on June 27, while flying over the Pyrenees. I don’t know what such a cloud formation indicates, but instinctively I didn’t fancy being underneath it.

If you check this link you were probably right in not wanting to be underneath it …
http://apollo.lsc.vsc.edu/classes/met130/notes/chapter5/summary.html
Thanks Paul. I’ll avoid them from now on.