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.
However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to ...
A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...
Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.
Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...
DALLAS — An area stretching from Texas to Tennessee braced Wednesday for the possible arrival of freezing rain and snow even as some other parts of the U.S. hit by the plunging polar vortex this ...
Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to ...
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