Add Yahoo as a preferred source to see more of our stories on Google. Just outside a local National Weather Service office in North Platte, Nebraska, hoar frost was spotted forming on this pole and ...

A note from Robert asks what hoar frost is. True frost, also known as hoar frost, occurs when a thin layer of moist air near the ground cools to below freezing and immediately forms ice crystals ...

Winter weather brings a variety of lesser-known phenomena, from different types of ice to atmospheric events. Terms like graupel, rime ice, and hoar frost describe specific ways ice and frost form on ...

FARGO — Earlier this week, we woke up to pockets of dense fog. After the fog lifted, beautiful, frosty trees were captured by many WDAY viewers. As a product of the December fog, rime ice was left ...