Polar vortex to send bitter cold to the U.S. including DC area
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, keeping it locked there. If there's any weakening in the jet stream (the fence), the frigid air can become unstable and spill out. This sends the normally trapped cold air much farther south.
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
1don MSN
A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.
Winter isn’t over yet! A polar vortex is bringing subzero winds, frigid temperatures, and possibly snow to the U.S., ...
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...
Snow is expected to taper off around Denver by the early afternoon, while temperatures will remain well-below freezing ...
Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...
Frigid arctic air due to a polar vortex is about to send temperatures plunging for millions of Americans across the U.S., and ...
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