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Tule fog is a radiation fog, which condenses when there is a high relative humidity (typically after a heavy rain), calm winds, and rapid cooling during the night. The nights are longer in the winter months, which allows an extended period of ground cooling, and thereby a pronounced temperature inversion at a low altitude.
Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [ 1 ] to refer to smoky fog due to its opacity, and odor. [ 2 ]
With sufficient humidity in the cooler layer, fog is typically present below the inversion cap. An inversion is also produced whenever radiation from the surface of the earth exceeds the amount of radiation received from the sun, which commonly occurs at night, or during the winter when the sun is very low in the sky.
Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. [1] [2] Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenced by nearby bodies of water, topography, and wind conditions.
Here, the falling air is warming adiabatically, and so the fog re-evaporates as it falls. [ citation needed ] Katabatic wind in Antarctica A katabatic wind (named from Ancient Greek κατάβασις ( katábasis ) 'descent') is a downslope wind caused by the flow of an elevated, high-density air mass into a lower-density air mass below under ...
A dense fog advisory remains in effect until 10 a.m. in portions of south central and southwest New Mexico, according go the National Weather Service
The fog season is usually based in the cooler months (late autumn, winter and early spring). An example is found in the San Joaquin Valley and Sacramento Valley areas of California 's Great Central Valley , where a thick ground fog, known as Tule fog , may form, in particular in the months from November through March. [ 1 ]
The 1930 Meuse Valley fog between 1 December and 5 December, killed 63 people in Belgium owing to a combination of industrial air pollution and a localized weather inversion. The River Meuse flows from France through Belgium and the Netherlands before entering the North Sea .