His eyes were fixed on the open window, where the snow clouds filled the space with a deep, even grey.

Ahead of us the sky was black with snow clouds.

The sun wouldn't show on the east horizon for another month, and today there were black snow clouds hanging across the city.

He looked up into the sky, which seemed as dark as ever with snow clouds.

The sky above was grey and heavy with snow clouds.

The snow clouds were behind them and the sky was clear in the east.

It must be winter for those were snow clouds.

The weak sun had now vanished behind what looked to be snow clouds.

It was a cold, windy Sunday, dark with heavy snow clouds.

He put it away and regarded the low, dark snow clouds.