Polar vortex, arctic blast
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
Imagine the polar vortex as a giant, icy whirlpool far above the Earth, keeping frigid Arctic air contained near the north ...
These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...
Scientists are scrambling to understand how climate change may be interfering with the winds that carry our weather, with ...
polar air comes south sometimes where the polar jet stream wanders. As they describe it, the polar vortex circles the ...
The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...
In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...
Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout ...
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