Wind and rain on the layout

[Puddlejumper]

I have been itching to model a scene just after a rain storm. The puddles and wet ground would be interesting. And details like wet pavement that is darker with spots that are drying that are lighter, puddles, runoff, rivers and streams with rushing muddy water, wet roofs and flowing gutters would all be neat. I wanted to try it, mainly, because no one else has.