The phrase "stormy clouds" refers to dark, grey clouds that are often associated with bad weather, such as rainfall, thunder, and lightning. Full definition
I thrive under stormy clouds and the fresh, bright smell of after - rain bliss. (spiceandsprout.com)
In about a year, you'd pass the blue, stormy clouds of Neptune and just four years later you'd reach the vast, mysterious regions near the edge of our Solar System. (newscientist.com)
Keep stormy clouds at bay in this lightweight jacket. (shop.lululemon.com)