If you were living…pretty much anywhere in the Northern Hemisphere last winter, you know that the polar vortex was no joke. Sure, the name sounded like it came from some ill-informed Hollywood executive. But it was all too real.
As defined by AccuWeather, it’s a large pocket of very cold air, the coldest in the Northern Hemisphere, which sits over the polar region during the winter season. As defined by those of us who endured it: it was just plain cold, the kind of cold in which adjectives feel superfluous. It was when cold became the new four-letter word.
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