Large, fluffy white cumulus clouds against a bright blue sky.

Massive cumulus clouds fill a blue sky.

A large, cumulonimbus cloud formation dominates the sky. The dense, puffy white clouds are a sign of potentially unstable atmospheric conditions. No people or other objects are present, only the natural phenomenon of a large cloud mass.

Photo ID: OminousSky_031
Photo size: 170.7 Mpixels (488 MB uncompressed) - 16000x10667 pixels (53.3x35.6 in / 135.5x90.3 cm at 300 ppi)