maximum zonal westerlies

maximum zonal westerlies

[′mak·sə·məm ¦zōn·əl ′wes·tər‚lēz]
(meteorology)
The average west-to-east component of wind over the continuous 20° belt of latitude in which this average is a maximum; it is usually found, in the winter season, in the vicinity of 40-60° north latitude.
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