Landsat 8’s Operational Land Imager acquired this image of an elongated lenticular cloud, locally nicknamed the “Taieri Pet,” above New Zealand’s South Island on Sept. 7, 2024. Lenticular clouds form when prevailing winds encounter a topographic barrier, such as a mountain range. Wind that is forced to flow up and over the mountains creates a kind of wave in the atmosphere. Air cools at the crest of the wave, and the water vapor it contains condenses into clouds.

Image credit: NASA/Lauren Dauphin; USGS