Shallow Fog
Fog in which the visibility at 6 feet above ground level is 5/8ths statute mile or more and the apparent visibility in the fog layer is less than 5/8ths statute mile.
SHARS ...
Ground Fog - Shallow fog (less than twenty feet deep) produced over the land by the cooling of the lower atmosphere as it comes in contact with the ground. Also known as radiation fog.
SGSnow grainsSGFNTSignificantShallow FogFog in which the visibility at 6 feet above ground level is 5/8ths statute mile or more and the apparent visibility in the fog layer is less than 5/8ths statute mile.
fog bank"Generally, a fairly well-defined mass of fog observed in the distance, most commonly at sea. This is not applied to patches of shallow fog.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Aerosol, Dense Fog Advisory, Evaporation-mixing Fog, Freezing Fog, GF, Ground Fog, Ice Fog, Nieve Penitente, Rain Induced Fog, Shallow Fog, Steam Fog, Tule Fog, ...
If fog is so shallow that it is not an obstruction to vision at a height of 6 ft above the surface, it is called simply shallow fog. In aviation weather observations fog is encoded F, and ground fog GF.
 See also: Temperature, High, Meteorology, Snow, Wind
  
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