Upslope Fog It forms as air is cooled adiabatically by blowing up sloping terrain. The upslope cooling may form clouds concurrently with the fog.
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.
Upslope Fog
A fog that forms when moist, stable air is carried up a mountain slope.
UPSLP ...
Upslope fog Fog formed as moist, stable air flows upward over a topographic barrier.
Upslope fog Ground-level cloud formed as a consequence of the expansional cooling of humid air that is forced to ascend a mountain slope.
Upwelling The upward circulation of cold, nutrient-rich bottom water toward the ocean surface.
V ...
upslope fog—Fog formed when air flows upward over rising terrain and is, consequently, adiabatically cooled to or below its initial dew point.
V ...
Upslope fog forms when winds blow air up a slope (called orographic lift), adiabatical cooling it as it rises, and causing the moisture in it to condense.
An upslope fog formed by the westward flow of air from the Missouri River Valley, producing fog on the eastern slopes of the Rockies. CHINOOK ...
This may occur through cooling of the air to a little beyond its dewpoint (producing advection fog, radiation fog or upslope fog), or by adding moisture and thereby elevating the dewpoint (producing steam fog or frontal fog).
A dense mass of small water droplets suspended in the air near the ground. Visibility is reduced to less than 1 kilometre. See also Radiation fog, Advection Fog, Upslope fog and Mist.
Forced convection ...
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, Upslope Fog ...
The principle types are radiational fog, ice fog, advection fog, upslope fog, rain induced fog, and steam fog. These types of fog are called "dense" when the surface visibility is equal to or less than 1/4 miles.
 See also: Air, Light, Weather, Layer, Cloud
|
