20don MSN
US weather to go nuts with blizzard, polar vortex, heat dome, atmospheric river all at once
Nearly every part of the United States is getting walloped by wild weather or just about to be.
Climate Compass on MSN
What if the polar vortex became a regular winter pattern? Scientists weigh in
Every winter, millions of people brace for news about the polar vortex - that vast, spinning mass of frigid Arctic air high ...
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