Which fog is formed when warm, moist air is blown over a cool surface?

The formation of advection fog occurs when warm, moist air is moved over a cooler surface, leading to the cooling of the air to its dew point and thus forming fog. This process typically happens when warm air from the ocean travels over cooler land or water bodies, causing the moisture in the air to condense into tiny water droplets that create fog.

In contrast, upslope fog forms when moist air is lifted over a terrain, leading to cooling as it ascends. Steam fog arises when cold air moves over warm water, causing moisture to evaporate and then condense. Radiation fog typically forms during the night when the ground cools rapidly, chilling the air close to the surface. Thus, the characteristics of advection fog make it unique in its formation process from warm air interacting with a cooler surface.