I generally never leave the house without at least a P&S, today I did.
Fortunately enough, I have a phone that takes photos well enough.
As a thunderstorm supercell line moved in, I managed to snap a few photos...
There was a brief instance of mammatus clouds forming (last image), a particuarly rare phenomenon that didn't fully materialize...
All in a matter of three minutes or less, hardly enough time to compose any of the shots...