According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...
The coldest air of the season will descend across the U.S. this weekend and early next week, bringing subzero wind chills with it.
A procession of winter storms is forecast to bring snow, sleet, ice and potentially flood-inducing rain to sprawling bands of the U.S. this week.
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