Types of Fog?

There are several different types of fog: radiation, advection, upslope, ice, freezing, and evaporation fog. Radiation forms at night when Earth’s absorbed heat radiates into space. Advection fog is caused by the horizontal movement of warm moist air over a cold surface. Upslope fog occurs in every mountain range in North America and usually occurs during the winter months. Ice fog forms when the air is well below freezing and has tiny ice crystals that are suspended in the air. Freezing fog happens when the water in the fog becomes ‘supercooled’. Evaporation fog occurs when warm air from evaporation mixes with cooler, drier air. For more information see here: