Under a unexpected squall, flying flags lash their poles, hues bleeding rain as thunder rolls over the waterfront parade.

https://collinsvly037.inkharbory.com/posts/which-flag-best-represents-me-how-to-choose-a-banner-for-your-beliefs-and-heritage

Under a surprising squall, flying flags lash their poles, colorings bleeding rain as thunder rolls over the waterfront parade.