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Steam fog is a type of fog that forms when cold air moves over a warm water surface. This causes moisture to evaporate into the air, which then becomes saturated and forms fog. This phenomenon is common in Arctic regions where cold air passes over open water or newly formed ice cracks. Fog, in general, is a cloud of small water droplets near the ground, formed by the condensation of water vapor on tiny particles in the air when the air becomes saturated with moisture.123

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