Fog

Science / Weather / Fog: A visible aggregate of minute water droplets suspended in the atmosphere at or near the surface of the earth, reducing horizontal visibility to less than 5/8 statute miles. It is created when the temperature and the dew point of the air have become the same, or nearly the same, and sufficient condensation nuclei are present. It is reported as 'FG' in an observation and on the METAR.
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Other Words for Fog

Fog Noun Synonyms: mist, haze, smog, vapour, cloud, pea-souper
Fog Verb Synonyms: trance, daze, stupor, brown study, confused state, coma
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Ice Fog

Science / Weather / Ice Fog: Fog that is composed of minute ice particles. It occurs in very low temperatures under clear, calm conditions in the polar latitudes and may produce a halo around the sun or moon. MORE

Sea Fog

Science / Weather / Sea Fog: A type of advection fog which forms in warm moist air cooled to saturation as the air moves across cold water. MORE

Fogbow

Science / Weather / Fogbow: A whitish semicircular arc seen opposite the sun in fog. The outer margin has a reddish tinge, its inner margin has a bluish tinge, and the middle of the band is white. An additional bow with reversed MORE