Morning Overview on MSN
A polar vortex break can flip your weather fast. Here’s why
When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...
Live Science on MSN
US suffers record-breaking cold: What's going on with the polar vortex?
Polar vortices exist throughout the year at the poles. In the Northern Hemisphere, the polar vortex expands many times over ...
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