Definitions for "Prevailing westerlies"
The dominant westerly winds that blow in middle latitudes on the poleward side of the subtropical high-pressure areas. Also called westerlies.
winds between 30° and 60° north and south of the equator that blow opposite to the trade winds and cause much of our weather
The dominant west to east motion of the atmosphere that characterizes the regions on the poleward side of the subtropical highs. The Continental United States lies in this area.