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.
1don MSN
A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.
According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...
Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing temperatures.
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The Polar Vortex will send frigid air to the area. This could be the coldest air in Western New York in almost six years. The last time the temperature has been below zero was February 1 ...
According to the European model, there's a chance that the air temperature at MSP could hit -20°F for the first time since ...
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