radiation fog

American  

noun

1. fog produced by the nocturnal cooling of the surface boundary layer to a temperature at which its content of water vapor condenses.

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Etymology

Origin of radiation fog

First recorded in 1855–60

Example Sentences

Technically known as radiation fog, it can develop in any valley, but the geography of the Sacramento and San Joaquin valleys can make it particularly intense, resulting in several massive freeway pileups in recent years.

From Los Angeles Times

Technically known as radiation fog, the weather phenomenon is the result of a combination of “a cool, moist layer of air from the Pacific close to the surface, clear skies above and light winds,” according to the National Weather Service.

From Los Angeles Times

This makes the air denser and increases relative humidity, condensing more water vapor, and resulting in a phenomenon known as radiation fog.

From National Geographic

The Central Valley’s thick tule fog is a type of radiation fog that forms on calm, clear nights, usually after a soaking rain, when the Earth gives up its heat — radiates its heat like a radiator — into space.

From Los Angeles Times

The sort of fog we've been experiencing is known as radiation fog.

From BBC