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.

The colder-than-normal temperatures in Houston are part of a larger pattern of Arctic air sweeping through Texas and much of the southern United States.

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.

Louisiana isn’t known for extreme cold weather—but that changed Tuesday, when the National Weather Service issued its first-ever blizzard warning for much of the state.

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.

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 ...

Part of Mississippi under extreme cold warning after winter storm dropped snow across the Gulf Coast. When will temperatures warm up?

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.

As snow begins to cover the Texas Panhandle amid the polar vortex, here's what the state can expect as weather conditions begin to shift.