Storm clouds over field, New Mexico, USA

Clouds over mountain range, La Gomera, Canary Islands, Spain

Clouds in sky over mountain range, La Gomera, Canary Islands, Spain

Storm clouds over snowcapped mountain, Grand Teton, Grand Teton National Park, Wyoming, USA

Overcast sky above a sandy landscape, Fuerteventura, Canary Islands, Spain

Low angle view of town against overcast sky, Belgium

A swift moving thunderstorm moves over a desert landscape.

Thunderclouds and lightning move over the mountains and a nearby lake.

Artist's concept of Neptune as seen from its largest moon Triton.

Storm clouds over landscape, Siguenza, Spain