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  2. Fog - Wikipedia

    en.wikipedia.org/wiki/Fog

    Radiation fog is formed by the cooling of land after sunset by infrared thermal radiation in calm conditions with a clear sky. The cooling ground then cools adjacent air by conduction , causing the air temperature to fall and reach the dew point , forming fog.

  3. Surfaces may appear wet but can have a thin sheet of clear ice instead. Ice of this nature can form even where air temperatures are a bit above the freezing mark, 32 F. ... The fog can be ...

  4. San Francisco fog - Wikipedia

    en.wikipedia.org/wiki/San_Francisco_fog

    There are also occasional extended spells when fog and stratus ("overcast") do not clear back to the coast for several days. These extended periods of cloudiness are usually a consequence of a weak area of low pressure above the marine layer which increases its depth, making it more difficult for surface heating to evaporate the clouds within it.

  5. Visibility - Wikipedia

    en.wikipedia.org/wiki/Visibility

    The international definition of fog is a visibility of less than 1 km (3,300 ft); mist is a visibility of between 1 km (0.62 mi) and 2 km (1.2 mi) and haze from 2 km (1.2 mi) to 5 km (3.1 mi). Fog and mist are generally assumed to be composed principally of water droplets, haze and smoke can be of smaller particle size.

  6. AccuWeather: Mostly clear with areas of fog - AOL

    www.aol.com/news/accuweather-mostly-clear-areas...

    Saturday night will see mostly clear skies with areas of fog. Low temperature of 66.

  7. Storms impact holiday travel in parts of U.S.

    www.aol.com/storms-dense-fog-threaten-holiday...

    Earlier, the National Weather Service in Fort Worth had issued various watches and warnings for flash floods, dense fog, tornadoes and thunderstorms in different parts of the region Thursday morning.

  8. Santa Ana winds - Wikipedia

    en.wikipedia.org/wiki/Santa_Ana_winds

    A Santa Ana fog is a derivative phenomenon in which a ground fog settles in coastal Southern California at the end of a Santa Ana wind episode. When Santa Ana conditions prevail, with winds in the lower 2 to 3 kilometers (1.2 to 1.9 mi) of the atmosphere from the north through east, the air over the coastal basin is extremely dry, and this dry ...

  9. Airports open late to clear Christmas fog backlog - AOL

    www.aol.com/christmas-eve-flights-disrupted-due...

    Airports open late to clear Christmas fog backlog. Georgina Barnes - BBC News, Jersey and Jack Silver - BBC News, Guernsey. December 24, 2024 at 12:20 PM.