People are having picnics outside. They look scared as they stare at very angry looking clouds.
There are angry clouds in the sky. Clouds don't have emotions.
Why are the clouds so angry?
Don't worry, it's just a front.
scene: a park description: People are having picnics outside. They look scared as they stare at very angry looking clouds. uncanny: There are angry clouds in the sky. Clouds don't have emotions. entities: Storm, Cloud. caption: Don't worry, it's just a front.
A play on words: to "put up a front" means to pretend to be someone you're not --- in this case, a tough person. "A front" can also refer to a weather front, where pressure differentials lead to storms. The clouds are both a weather front and are putting up a front of toughness--- the people aren't worried because the clouds are just posturing and the storm won't be that bad.