Polar Vortex Enters Northern U.S. The polar vortex is a whirling and persistent large area of low pressure, found typically over both North and South poles. The northern polar vortex…
Read MorePolar Vortex Enters Northern U.S. The polar vortex is a whirling and persistent large area of low pressure, found typically over both North and South poles. The northern polar vortex…
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