Wind and rain on the layout

[Ralph]

David Stewart's O scale Appalachian and Ohio, featured in MR, had a "rain room" segment of the layout that looked wet and dark, and I think may have included thunderstorm sounds and lightning effects. Some scenes like this one were isolated from the rest of his layout and were reached by short "people tunnels" so the rain scene was an independent diorama. I'd think visually separating the rest of the layout from the rain scene would be the way to go to make it look plausible. Interesting idea.
Ralph