As U.S. shivered through polar vortex, one state was unusually warm
Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...
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Why Polar Vortexes Are Becoming More Common
Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles.
Climate graphic of the week: Wild January weather assails the US
The wild January weather across the US is expected to continue this week with forecasts for heavy rain in southern states, after a surge of Arctic air that spilled southward and delivered rare record ...