Steam fog forms when cold air moves over warm water. When the cool air mixes with the warm moist air over the water, the moist air cools until its humidity reaches 100% and fog forms.

During condensation, molecules of water vapor combine to make tiny water droplets that hang in the air. Sea fog, which shows up near bodies of saline water, is formed as water vapor condenses on bits of …

Aug 28, 2025 · Learn the science of fog. Discover the specific atmospheric conditions and cooling mechanisms that lead to its formation and appearance.

Fog is formed by the condensation of water vapor on tiny particles that are always present in natural air; this occurs when the air becomes saturated with moisture.

Oct 19, 2024 · Fog forms when the air near the ground cools and the moisture in it condenses. Cooling of air to its dew point: As the air temperature drops to the dew point, water vapor condenses into tiny …

For fog to form we need a few ingredients; moisture, light winds and a certain temperature called the ‘fog point’. Fog is essentially a very low-lying cloud.

Jan 16, 2025 · Fog occurs when air saturated with water vapour is cooled suddenly, and there are several different ways this can happen. Fog is made up of molecules of water vapour, suspended in …

Dec 23, 2024 · Fog forms when moisture condenses, caused by temperature, humidity, and air pollution, resulting in reduced visibility due to mist, haze, and cloud cover.

Mar 19, 2025 · Fog is a common meteorological phenomenon that occurs when water droplets condense in the air near the ground. Fog forms when moist air cools to its dew point, resulting in …

Find out what fog is, how it is formed and the difference between fog and mist with this BBC Bitesize Scotland article for First and Second Level CfE.