Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

A significant meteorological event is poised to impact vast regions of the United States. The polar vortex, a large area of low pressure and cold air surrounding the Earth’s poles, is expected to ...

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

If someone asked you, “Where can I go in the United States to escape the frigid air this January?” what would you say?

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

Elsewhere, a displaced lobe of the polar vortex has brought an unrelenting chill to large parts of the contiguous United States. About 30 states have experienced temperatures well below average ...

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

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

When a polar vortex arrives, it brings frigid winds from the north pole deep into the United States. The cold air can settled ...