Polar Vortex, Arctic Cold to Rock Much of U.S. on Monday

There's cold, and then there's Arctic cold — and multiple major cities across the United States are about to experience the latter

A frigid cold front is expected to hit dozens of states across the Midwest and mountain regions over the next 72 hours, promising to turn Monday's work-related foot traffic into a scene from March of the Penguins

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The cold front, which is predicted to bring temperatures between 20 and 40 degrees lower than average in states that already experience harsh January weather, is coming down from the polar regions above northern Canada. The pocket of cold air, called a "polar vortex," was blocked up north by a high-pressure area that meteorologists refer to as a "ridge," according to Mark Ressler, senior meteorologist at The Weather Channel Read more...

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via Mashable http://mashable.com/2014/01/04/polar-vortex-expected/?utm_medium=feed&utm_source=rss