By what name is the warm, dry and dusty local wind descending from the high mountainous regions in New Zealand known?
In New Zealand, the warm and dry wind that descends from the Southern Alps is called the Nor’wester. Like other Foehn winds, it starts as moist air on the western coast but becomes hot and dry as it spills over the mountains onto the Canterbury Plains. It is known for its high speed and for carrying dust across the eastern farmlands. ANSWER: (D) Nor’wester
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The Nor’wester is a significant weather event in New Zealand. As moisture-laden winds from the Tasman Sea hit the high Southern Alps, they rise and lose their water as rain on the “West Coast.” When the wind crosses the peaks and descends into the Canterbury region, it is compressed and warmed by the atmosphere. This results in a hot, parched wind that can dry out soil and crops very quickly. Students can identify it by the “Nor’west arch,” a unique, long cloud formation that sits high in the sky over the mountains while the plains remain sunny.
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