Every year, the winter buzzwords start to fly before we set the Thanksgiving table. And who doesn't love feasting on the polar vortex? Everyone's favorite (or favorite to hate) phenomenon spins up in ...

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High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex collapsed, and severe temperatures are set to dominate most of the country in the coming days. Single-digit ...

Most of the country will likely be hit by an arctic blast this weekend into early next week as the polar vortex ushers in cold air from Siberia and multiple storms roll in and bring the potential for ...