Science / Weather / Upslope Fog: Fog that forms when warm, moist surface air is forced up a slope by the wind. It is adiabatically cooled to below its initial dew point, which means the air cools by expansion as it rises. It forms best where there is a gradual slope, and it can become quite deep, requiring considerable time to dissipate.
Fog Noun Synonyms: mist, haze, smog, vapour, cloud, pea-souper
Fog Verb Synonyms: trance, daze, stupor, brown study, confused state, coma
Science / Weather / Cheyenne Fog: An upslope fog formed by the westward flow of air from the Missouri River Valley, producing fog on the eastern slopes of the Rockies. MORE
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