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.

The United States is currently experiencing an intense cold front linked to the so-called Arctic “polar vortex”.  The icy air that has particularly affected the central and eastern United States is now descending as far as the Gulf Coast.

Unprecedented snowfall hits the U.S. South. Discover how this winter storm is setting new records and causing rare blizzard conditions.

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.

The first-ever blizzard warnings were issued near the Texas-Louisiana border Tuesday as Winter Storm Enzo blew through, bringing an estimated five inches of snow to areas in Alabama, Mississippi, Louisiana and Texas.

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of climate change.

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

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from coastal Texas to northern Florida late Monday into Tuesday. The event comes as an Arctic blast affects more than half the U.

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend

The polar vortex of ultra-cold air usually spins around ... store as he loaded his fourth order of the day into his car. Texas Gov. Greg Abbott said Wednesday that the state had deployed several ...

Houston has been experiencing below-average temperatures as a polar vortex ushers in cooler conditions across the state.

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.