A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

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 happened this past week all over the United States.

These conditions are all thanks to a familiar sounding occurrence: the polar vortex, a large area of low pressure and cold air that surrounds the Earth's poles. The "vortex" is the counterclockwise flow of air that helps keep the colder air close to the ...

In 2000, residents of the Portland area had to wait until January 16th for the first inch of snow marked as the latest first inch of snow on record. Also read: Maine to experience brief warm-up before arctic chill returns midweek Residents in 1945 hold the record for the latest last inch of snow,

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.

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's typical warmth.

A polar vortex is slated to sweep most of the continental ... and west of the I-95 corridor to West Virginia and down East Maine with up to 8 inches expected. Before leaving exiting the U.S ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around the poles, making winter weather more chaotic.

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still digging out of the snowdrifts, but at least warmer temperatures are on tap heading into the weekend.

And if the polar vortex is to blame. First, a quick refresher on the polar vortex. The polar vortex is a region of very strong winds that form a circle around the North Pole. The vortex is located ...

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

A magnitude 3.8 earthquake rattled parts of New England on Monday morning, with shaking felt from Boston to Portland, Maine, the US Geological Survey said. The quake was centered about 7 miles ...