Advection Fog
What is advection fog?
Advection fog forms when warm, moist air moves horizontally over a colder surface, cooling that air until it condenses into fog. It is common along coastal regions where land and water temperatures differ sharply, and unlike radiation fog, it can persist day or night until a drier air mass replaces it. Think of it as "fog that travels"—the wind blows warm, humid air over a cold surface and brings the fog with it.
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