Us Polar Vortex Forecast News 2025. The second artic outbreak, or polar vortex, is forecast to arrive between january 7 and 13, bring the coldest air of the season to date. When the polar vortex gets weaker, or breaks up, it unleashes cold air to the south.
— the plunging polar vortex brought subfreezing temperatures tuesday to some of the southernmost points of the u.s., threatening to dump snow on parts of. The second artic outbreak, or polar vortex, is forecast to arrive between january 7 and 13, bring the coldest air of the season to date.
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