Air in motion relative to t earth′s surface, caused by the average movement of a large number of molecules of air.


A counterclockwise shift in the wind direction in the Northern Hemisphere at a certain location. In the Southern Hemisphere, it is clockwise. This can either happen in the horizontal or the vertical plane. This is the opposite of veering.

Meridional Flow

Atmospheric circulation in which the north and south, or meridional, component of motion is unusually pronounced.


The direction from which the wind is blowing. Also the windward side of an object.


The direction from which the wind is blowing.

Zonal Wind

Atmospheric wind component which flows along the latitude.

See also: Meridional Flow, Veering, Wind Chill Index, Wind Speed, Wind Velocity, Windward, Zonal Wind.

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Subjects: Meteorology