Thundercloud Over Montana - Big Think

This picture is not of an alien invasion. It is a thunderstorm cloud called a supercell that was photographed in Glasgow, Montana. 

Photography In The Parks

Thunderhead over mountain hi-res stock photography and images - Alamy

Watch: Rare funnel cloud hovers over Montana mountains

7,983 Thunder Field Stock Photos - Free & Royalty-Free Stock

Thundercloud Subs looking super retro at night. : r/Austin

11221 Thundercloud Dr, El Paso, TX 79936

11200 Thundercloud Dr, El Paso, TX 79936

Thunderclouds Gifts & Merchandise for Sale

Rare Funnel Cloud Hovers Over Montana Mountains

Indy Pass Adds Big White, B.C.; Montana Snowbowl; Austria's Largest Resort; 51 More Ski Areas

Jaw-dropping image of enormous 'supercell' cloud in Glasgow

Western Wildlands Section Ride Part 2: Utah - Exploring Wild

Some Reflections on My Roadtrip Across the Western United States

Thunderclouds Gifts & Merchandise for Sale