It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

The United States is currently experiencing an intense cold front linked to the so-called Arctic “polar vortex”.  The icy air ...

Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles.

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 polar vortex, a natural atmospheric phenomenon ... frigid conditions caused by an Arctic blast sweeping across the United States.

With little snow to bother them, thousands of sandhill cranes stopped their southern migration in Nebraska. "The past few ...

An Arctic polar vortex has brought freezing temperatures and frigid winds to millions across the country this winter.

A strong polar vortex is expected to keep cold air in Canada and the northwest U.S. in February, March and April, according to Weather Channel.

A disrupted polar vortex does not happen every year. Very much so what happened this past week all over the United States. Above are the low temperatures over the past three days in Portland.

When the polar vortex near the North Pole weakens and moves away from its regular position, the United States, parts of Europe, and Asia are hit with icy winds. As this system weakens, some of the ...