What occurs if moist warm air moves over cold surfaces?

When moist warm air moves over cold surfaces, the temperature of the air near the surface decreases. This cooling can lead to the air reaching its dew point, where moisture in the air condenses into tiny water droplets, resulting in fog. In this case, the process described is known as advection fog, which is specifically formed when warm, moist air is carried (or advected) over a cooler surface, such as cool water or land during colder temperatures.

The presence of advection fog is particularly prevalent in coastal areas or regions where warm air flows over cold water, leading to reduced visibility and often creating a thick, misty environment. This phenomenon highlights the interaction between temperature, air mass movement, and moisture content, successfully illustrating the impact of temperature differences on weather conditions.