A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
The United States is currently experiencing an intense cold front linked to the so-called Arctic “polar vortex”.  The icy air ...
A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
WASHINGTON — We are in the middle of a blast of extreme cold weather in D.C. The polar vortex has shifted, spilling cold air ...
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.
A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...
A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this ...
Under the Rotunda of the U.S. Capitol, Donald Trump was again inaugurated, this time as the 47th president of the United ...
Stable polar vortex: When the stratosphere over the Arctic is cold, it's considered stable. The wind around the polar vortex ...
When there are disturbances in which the Jet Stream weakens, it can become wobbly. This allows the cold air to plunge southwards. A disrupted polar vortex does not happen every year. Very much so what ...
A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...