What is a pogonip?

Answer 1

A pogonip is a weather phenomenon characterized by a dense fog that occurs in cold, humid conditions, often seen in mountainous areas. It forms when water vapor condenses and freezes, creating a frosty, icy fog that can obscure visibility and coat surfaces with frost. Pogonips are particularly common in the western United States, especially in valleys and canyons during winter. The name originates from a Native American term used by the Shoshone people.