rain cloud

Like rain clouds, radiation clouds are driven by the weather.

She stood there for most of the night, and eventually a few rain clouds drifted over.

In many productions, Hamlet stalks the stage in a fog of misery, as if trailing a rain cloud above his head like a balloon on a string.

It allowed long-lasting areas of high pressure to sit over the UK keeping rain clouds away and helping heat to build.

As the night wears on, rain clouds move in.