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.
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...
Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...
State Climatologist Jay Grymes said there could be lows of 20 degrees across the state between Monday and Wednesday and the ...
A polar vortex that has hit much of the U.S. with ice and snow has dealt a glancing blow to Florida, dropping coastal ...
A polar vortex could cause light snow over the weekend in Knoxville. A polar vortex is to blame for freezing temperatures.
A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.
So, as the Deep South grapples with the foreign language of snowflake icons making a (for some, repeat) appearance in weather ...
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