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.
A polar vortex is slated to sweep most of the continental United States bringing a hazardous freeze to millions of Americans ...
19hon MSN
Although people from all over the country, of all ages and backgrounds, joined the People's March, one protester said no one ...
Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to ...
Preparations are underway as an arctic blast dives into the nation's interior and southern regions and pushes a snowstorm ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback