Any conditions with extremes and compounds where cells butt against each other and form self-contained weather loops suspended vertically.

E.g. A heavy hot gas layer with a lighter "water" layer above it (or whatever the precipitation medium is); so the precipitation collects, falls, hits the hotter bottom layer, and evaporates up to condense and collect again without ever reaching the surface of the planet. From a surface observer's POV (within or below the hotter gas layer), this would be a continuous rain event that never reaches them and just loops itself in the sky.